Dissertations / Theses on the topic 'Saurimo'
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Candondolo, Canhinguiquine Perfeito. "O processo de transição do ensino para a monodocência nas 5º e 6º classes no município de Saurimo: o caso das escolas primárias nº 14 do Candembe I, missão Masculina nº 2 e nº 8, 28 de Agosto de Txucumina." Master's thesis, Universidade de Évora, 2017. http://hdl.handle.net/10174/21961.
Full textRussell, Liam. "The conservation and landscape genetics of the sand lizard Lacerta agilis." Thesis, University of Sussex, 2013. http://sro.sussex.ac.uk/id/eprint/47207/.
Full textBates, Michael Francis. "An analysis of the Pseudocordylus melanotus complex (Sauria: Cordylidae)." Thesis, Stellenbosch : Stellenbosch University, 2007. http://hdl.handle.net/10019.1/21451.
Full textENGLISH ABSTRACT: The taxonomic status of southern Africa’s rupicolous crag lizards (genus Pseudocordylus) was investigated. As considerable confusion exists in the literature regarding the type specimens and type localities of the various taxa, resolution of these problems were considered the starting point of the study. Examination of museum specimens allowed for the designation of lectotypes, alloparalectotypes and/or paralectotypes. Of particular relevance to this study was the rediscovery of Andrew Smith’s type specimens of P. m. melanotus and P. m. subviridis. Restriction of the type locality of P. m. subviridis, based on entries in Smith’s diary and journal, allowed for the confirmation of previous interpretations and definitions of the two taxa. The geographical distribution of the various taxa and populations was determined using an extensive locality database. Two kinds of molecular markers, namely allozymes and mitochondrial DNA, were used in an attempt to resolve taxon boundaries within the P. melanotus species complex. The allozyme analysis indicated that P. m. melanotus might be polyphyletic and comprised of two unrelated lineages. Furthermore, fixed allelic differences between parapatric populations of P. m. melanotus and P. m. subviridis, and between sympatric populations of P. m. subviridis and P. langi, suggested that all three forms might be considered full species, with the possibility of more cryptic species present in the complex. Pseudocordylus transvaalensis differed from most other populations by 1-3 fixed allelic differences, but was indistinguishable from the Nkandhla district (central KwaZulu-Natal) population of P. m. melanotus. There were no heterozygous individuals in a sample from Monontsha Pass (Qwa-Qwa), a population reportedly comprising P. m. melanotus and P. m. subviridis, as well as intermediates, and all specimens were assignable to P. m. subviridis. The allozyme study was, however, based on phenetic principles and for further taxonomic resolution a cladistic approach was required. An mtDNA analysis (16S rRNA gene) using Maximum Parsimony, Maximum Likelihood and Bayesian analyses was therefore conducted to determine phylogenetic relationships among species and subspecies and to re-assess the taxonomic status of forms in the P. melanotus species complex. The mtDNA analysis corroborated most of the results obtained in the allozyme analysis. Firstly, P. langi was again found to be basal. With the addition of P. microlepidotus and P. spinosus to the ingroup, it is now apparent that P. langi is the basal species in the genus. (Recent studies have indicated that P. capensis and P. nebulosus are not congeneric with Pseudocordylus.) Secondly, the 16S rRNA results confirm that P. m. melanotus, as presently construed, is comprised of two clades that are not sister groups. The northern populations of P. m. melanotus (Sabie and Lochiel) form a fairly deeply divergent clade that may represent a separate species. The Nkandla population was, however, found to cluster with the other southern P. m. melanotus populations and not with P. transvaalensis as was the case in the allozyme electrophoretic analysis. However, the most surprising result of the 16S rRNA analysis was the finding that both P. microlepidotus and P. spinosus are embedded within P. m. subviridis. This suggests that these two species evolved from within P. m. subviridis and may have been separated only recently, with rapid morphological divergence occurring, but with limited genetic differentiation. It is suggested that all of the above three taxa be provisionally treated as full species. There was also morphological support for the uniqueness of all groupings indicated by the mtDNA analysis. Pseudocordylus transvaalensis is characterized by its large size, unique dorsal and gular (black) colour patterns, as many as three horizontal rows of lateral temporal scales, a series of small scales posterior to the interparietal scale, and usually two subocular scales behind the median subocular on either side of the head. The various populations currently classified under the name P. melanotus are more difficult to separate, but P. m. melanotus and P. m. subviridis usually differ as follows: frontonasal divided in P. m. melanotus, undivided in P. m. subviridis (and most Northern melanotus); lateral temporals in two rows, upper more elongate versus single row of much elongated scales; longitudinal rows of dorsolaterals closely-set versus widely separated; femoral pores of females pit-like versus deep with secretory plug. Northern melanotus differs from Southern melanotus in usually having an undivided frontonasal scale and seldom having a small scale present behind the frontonasal. Pseudocordylus langi has unique dorsal and gular colour patterns (including a series of blue spots on the flanks), granular dorsals with 6-9 paravertebral rows of enlarged flat scales, high total numbers of femoral pores (25-34) and usually only five (smooth not keeled or ridged) infralabial scales on either side of the head. Pseudocordylus spinosus also has unique dorsal and gular colour patterns, spinose lateral scales, frontonasal longer than wide and excluded from the loreal scales, low total femoral pore counts (6-9), and females (not only males) have differentiated femoral scales. Both Principal Components Analysis (PCA) and Canonical Discriminant Analysis (CDA) distinguished four groups, namely P. transvaalensis, P. langi, P. spinosus and a P. melanotus/subviridis/microlepidotus cluster. A separate CDA of all P. melanotus populations partly distinguished between Southern melanotus and P. m. subviridis, and largely separated Northern melanotus; whereas a CDA of P. transvaalensis showed that all three allopatric populations are 100% distinguishable in morphological space. A Nested Clade Analysis indicated that fragmentation as well as range expansion played a role in the distribution of the P. melanotus species complex. This may be explained by climatic oscillations (high-low temperatures and wet-dry cycles) during the Cenozoic that caused habitat expansion and contraction. Based on the topology of the mtDNA phylogram it is apparent that the genus Pseudocordylus originated along the eastern escarpment. A P. langi-like ancestor may have had an extensive range along the eastern escarpment, with the Maloti-Drakensberg forming the southern limit of its range. During a subsequent rise in global temperatures, range contraction and fragmentation took place, leaving an isolated population in the south and one in the north. The southern population survived unchanged in the Maloti-Drakensberg refugium, but the northern population was forced to adapt to the warmer conditions. Thereafter, the northern form expanded its range again, but during a subsequent cooler period, range contraction occurred, resulting in an isolated north-eastern population in the Sabie-Lochiel area in Mpumulanga (Northern melanotus) and a western population. Relationships in the latter clade are not sufficiently resolved to allow further reconstruction of biogeographic history, but it is clear that a P. m. subviridis-like form became isolated in the south where it eventually came into contact with P. langi at high elevations. Pseudocordylus m. subviridis eventually extended its range southwestwards into the inland mountains of the Eastern Cape and Cape Fold Mountains to give rise to the P. microlepidotus complex. This cycle of range expansion and contraction may also account for the isolated populations at Suikerbosrand, Nkandhla district, and in the Amatole-Great Winterberg mountain region. Furthermore, it is suggested that P. spinosus originated from a P. m. subviridis-like ancestral population that became isolated on the lower slopes of the Drakensberg where terrestrial predation pressure resulted in a quick shift in morphology from fairly smooth body scales to a more spiny morphology.
AFRIKAANSE OPSOMMING: Die taksonomiese status van suidelike Afrika se rotsbewonende krans-akkedisse (genus Pseudocordylus) is ondersoek. Omdat daar aansienlike verwarring in die literatuur bestaan met betrekking tot die tipe monsters en die tipe lokaliteite van die verskillende taksa, is die oplossing van hierdie probleme as die beginpunt van hierdie studie geneem. Die bestudering van akkedismonsters in museums het dit moontlik gemaak om lektotipes, alloparalektotipes en/of paralektotipes aan te wys. Van besondere belang vir hierdie studie is die herontdekking van Andrew Smith se tipe monsters van P. m. melanotus en P. m. subviridis. Die beperking van die tipe lokaliteit van P. m. subviridis, gebaseer op inskrywings in Smith se dagboek en joernaal, het dit moontlik gemaak om vorige interpretasies en definisies van die twee taksa te bevestig. Die geografiese verspreiding van die verskillende taksa en bevolkings is bepaal deur middel van ’n omvattende lokaliteit databasis. Twee soorte molekulêre merkers, naamlik allosieme en mitokondriale DNS, is gebruik in ʼn poging om uitsluitsel te verkry oor die takson-grense binne die P. melanotus-spesiekompleks. Die allosiem-analise het daarop gedui dat P. m. melanotus moontlik polifileties mag wees en uit twee onverwante stamboom-vertakkings kan bestaan. Verder het vaste alleliese verskille tussen parapatriese bevolkings van P. m. melanotus en P. m. subviridis, en tussen simpatriese bevolkings van P. m. subviridis en P. langi, daarop gedui dat al drie vorme as volledige spesies beskou kan word, met die moontlikheid dat meer kriptiese spesies in die kompleks teenwoordig kan wees. Pseudocordylus transvaalensis het van die meeste ander bevolkings verskil met 1-3 vaste alleliese verskille, maar was ononderskeibaar van die bevolking van P. m. melanotus van die Nkandhla distrik (sentraal KwaZulu-Natal). Daar was slegs homosigote individue in ʼn steekproef van Monontsha Pas (Qwa-Qwa), ʼn bevolking wat volgens die literatuur P. m. melanotus en P. m. subviridis, sowel as intermediêre omvat, en alle monsters was toekenbaar aan P. m. subviridis. Die allosiemstudie is egter gebaseer op fenetiese beginsels en vir verdere taksonomiese oplossing is ʼn kladistiese benadering vereis. ʼn Mitokondriale DNS-analise (16S rRNS geen) wat gebruik maak van Maksimum Parsimonie-, Maksimum Waarskynlikheids- en Bayes-analises is daarom uitgevoer om die filogenetiese verwantskappe tussen spesies en subspesies te bepaal en om die taksonomiese status van vorme in die P. melanotus-spesiekompleks te herondersoek. Die mtDNS-analise het die meeste van die resultate van die allosiem-analise bevestig. Eerstens, P. langi is weer bevind om basaal te wees. Met die byvoeging van P. microlepidotus en P. spinosus tot die binne-groep het dit nou duidelik geword dat P. langi die basale spesie in die genus is. (Onlangse studies het aangedui dat P. capensis en P. nebulosus nie kongeneries met Pseudocordylus is nie.) Tweedens, die 16S rRNS resultate bevestig dat P. m. melanotus, soos tans vasgestel, saamgestel is uit twee klade wat nie sustergroepe is nie. Die noordelike bevolkings van P. m. melanotus (Sabie en Lochiel) vorm ʼn redelik diep divergente klaad wat ʼn afsonderlike spesie mag verteenwoordig. Dit is egter bevind dat die Nkandla bevolking saamgegroepeer het met die ander suidelike P. m. melanotus-bevolkings en nie met P. transvaalensis soos wat die geval was in die allosiem-elektroforetiese analise nie. Die mees verbasende resultaat van die 16S rRNS-analise was egter die bevinding dat beide P. microlepidotus en P. spinosus genestel was binne P. m. subviridis. Dit dui daarop dat hierdie twee spesies kon ontwikkel het vanuit P. m. subviridis en slegs onlangs van mekaar geskei het, toe vinnige morfologiese splitsing voorgekom het, maar met beperkte genetiese differensiasie. Dit word voorgestel dat al drie die bogenoemde taksa voorlopig as volledige spesies beskou word. Daar was ook morfologiese steun vir die uniekheid van al die groeperings wat die mtDNS-analise uitgewys het. Pseudocordylus transvaalensis kan uitgeken word aan sy bogemiddelde grootte, unieke dorsale en (swart) kleurpatrone op die keel, so veel as drie horisontale rye lateraaltemporale skubbe, ʼn reeks klein skubbe agter die interpariëtale skub, en gewoonlik twee subokulêre skubbe agter die middelste subokulêre skub op beide kante van die kop. Die verskillende bevolkings wat tans geklassifiseer word as P. melanotus is moeiliker om van mekaar te skei, maar P. m. melanotus en P. m. subviridis verskil gewoonlik soos volg: frontonasale skub in twee gedeel in P. m. melanotus, heel in P. m. subviridis (en in die meeste Noordelike melanotus); lateraal-temporale skubbe in twee rye, die boonste ry met verlengde skubbe teenoor ʼn enkele ry verlengde skubbe; longitudinale rye van dorsolaterale skubbe naby aan mekaar teenoor ver uit mekaar; femorale porieë van wyfies klein en vlak teenoor diep met sekreterende proppe. Noordelike melanotus verskil van Suidelike melanotus deurdat hulle gewoonlik ʼn heel frontonasale skub het en daar selde ʼn klein skub teenwoordig is agter die frontonasale skub. Pseudocordylus langi het unieke dorsale en keel-kleurpatrone (wat ʼn reeks blou kolle op die sye insluit), granulêre dorsale skubbe met 6-9 rye vergrote plat skubbe langs die rugsteen, ʼn groot totale aantal femorale porieë (25-34), en gewoonlik net vyf (glad, ongerif) infralabiale skubbe op elke kant van die kop. Pseudocordylus spinosus het ook unieke dorsale en keel-kleurpatrone, skerp laterale skubbe, frontonasale skub langer as wyd en nie in kontak met die loreale skubbe nie, klein totale aantal femorale porieë (6-9), en wyfies (nie net mannetjies nie) het gedifferensieerde femorale skubbe. Die Hoof-komponent Analise (HKA) en die Kanonieke Diskriminant Analise (KDA) het albei vier groepe geïdentifiseer, naamlik P. transvaalensis, P. langi, P. spinosus en ʼn P. melanotus/subviridis/microlepidotus groepering. ʼn Aparte KDA van alle P. melanotus bevolkings het gedeeltelik onderskei tussen Suidelike melanotus en P. m. subviridis, en die Noordelike melanotus is grootliks van die ander onderskei; terwyl ʼn KDA van P. transvaalensis daarop gedui het dat al drie allopatriese bevolkings 100% onderskeibaar in morfologiese ruimte is. ʼn Genestelde Klaad-Analise het aangedui dat fragmentasie, sowel as gebiedsuitbreiding, ʼn rol gespeel het in die verspreiding van die P. melanotus-spesiekompleks. Dit kan moontlik verklaar word deur die klimaatswisselinge (hoë-lae temperature en nat-droë siklusse) gedurende die Senosoikum wat habitat-uitbreiding en –verkleining veroorsaak het. Gebaseer op die topologie van die mtDNS filogram is dit duidelik dat die genus Pseudocordylus al langs die oostelike platorand ontstaan het. ʼn Voorouer soortgelyk aan P. langi kon ʼn uitgebreide gebied al langs die oostelike platorand gehad het, met die Maloti-Drakensberg wat die suidelike limiet van hierdie gebied gevorm het. Gedurende ʼn daaropvolgende toename in globale temperature het gebiedsverkleining en fragmentasie plaasgevind, wat ʼn geïsoleerde bevolking in die suide en een in die noorde tot gevolg gehad het. Die suidelike bevolking het onveranderd oorleef in die Maloti-Drakensberg skuilplek (“refugium”), maar die noordelike bevolking is geforseer om aan te pas in die warmer toestande. Daarna het die noordelike vorm se gebied weer uitgebrei, maar gedurende ʼn daaropvolgende koeler periode het gebiedsverkleining weer plaasgevind, met die gevolg dat daar ʼn geïsoleerde noord-oostelike bevolking in die Sabie-Lochiel-area in Mpumalanga (Noordelike melanotus) en ʼn bevolking in die weste was. Verwantskappe in die laasgenoemde klaad is nie voldoende opgelos om verdere rekonstruksie van die biogeografiese geskiedenis moontlik te maak nie, maar dit is duidelik dat ʼn vorm soortgelyk aan P. m. subviridis geïsoleer geraak het in die suide waar dit eindelik op hoë liggings in kontak gekom het met P. langi. Die gebied van P. m. subviridis is ook later suidweswaarts uitgebrei tot in die binnelandse berge van die Oos-Kaap en Kaapse Plooiberge om tot die ontstaan van die P. microlepidotuskompleks aanleiding te gee. Hierdie siklus van gebiedsuitbreiding en verkleining kan ook ʼn verklaring bied vir die geïsoleerde bevolkings by Suikerbosrand, Nkandhla distrik, en in die Amatole-Groot Winterberg-streek. Verder word voorgestel dat P. spinosus ontstaan het uit ʼn voorouerlike bevolking soortgelyk aan P. m. subviridis wat geïsoleerd geraak het op die laer hange van die Drakensberg waar die druk van aardsbewonende roofdiere tot ʼn vinnige verandering in morfologie vanaf redelik gladde liggaamskubbe tot ʼn meer skerppuntige morfologie gelei het.
Ferreira, Adelina Aparecida Francisca 1989. "Ciclo reprodutivo e espermiogenese de Iguana iguana (Reptilia : Sauria : Iguanidae)." [s.n.], 2001. http://repositorio.unicamp.br/jspui/handle/REPOSIP/317149.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia
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Mestrado
Alblas, Amanda. "Cloacal glands of the group-living lizard, Cordylus cataphractus (Sauria: Cordylidae)." Thesis, Stellenbosch : Stellenbosch University, 2004. http://hdl.handle.net/10019.1/49884.
Full textENGLISH ABSTRACT: Standard histological procedures revealed that there are two types of glands in the cloacal complex of the viviparous Cordylus cataphractus. These occur in the urodeal region of the complex (called urodeal glands), and in the posterior proctodeum region (called proctodeal glands). Urodeal glands are found in females only and differentiate at sexual maturity. Proctodeal glands occur in both sexes and the dorsal and ventral proctodeal glands are identical in structure. Seasonal activity in cloacal gland structure and secretory was studied. Urodeal glands show distinct seasonal variation in development and secretory activity, they become enlarged in vitellogenic females, remain active during pregnancy, with glandular activity peaking around parturition. Proctodeal glands, in contrast, show little or no seasonal variation in development or secretory activity in both sexes. Secretion quantity, however, is highly variable among individuals of the same sex, time of year, as well as reproductive stage, but evidently much less in females than in males. Although the possible functions of the cloacal glands are still unclear, two main functions are suggested: a) mechanical function such as lubrication or a substrate for genital products and b) pheromonal communication. I propose that urodeal glands are involved in some reproductive function rather than in social communication, because very little secretion is found during the mating season and peak glandular activity are evident around parturition. The opposite may be true for proctodeal glands, but further investigation is needed, particularly chemical analysis of secretion and behavioural manipulation, to determine the role of these glands in social communication.
AFRIKAANSE OPSOMMING: Standaard histologiese tegnieke dui aan dat daar twee tipes kliere voorkom in die kloakale kompleks van die lewendbarende akkedis, Cordylus cataphractus. Die een kliertipe word in die urodeale omgewing aangetref en staan bekend as die urodeaalkliere, terwyl die ander groep in die posterior area van die proktodeum voorkom en proktodeaalkliere heet. Urodeaalkliere word slegs in wyfies aangetref en ontwikkel eers na volwassenheid bereik is. Proktodeaalkliere kom in albei geslagte voor en dorsale en ventrale aspekte van hierdie kliere is identies aan mekaar. Die seisoenale aktiwiteit in struktuur en sekresie-aktiwiteit van hierdie kloakale kliere is ondersoek in mannetjies en wyfies wat gedurende verskillende maande van die jaar versamel is en dus in verskillende voorplantingstadia was. Urodeaalkliere het duidelike seisoenale variasie vertoon wat beide ontwikkeling van die klier en sekretoriese aktiwiteite betref. Die klier vergroot tydens vitellogenese, bly aktief tydens swangerskap en bereik maksimale aktiwiteitsvlakke rondom geboorte. In teenstelling hiermee het die proktodeaalkiere van beide geslagte weinig of self geen seisonale variasie in hul ontwikkeling of sekretoriese aktiwiteit getoon nie. Die hoeveelheid sekreet vrygestel was merkbaar minder in wyfies as in mannetjies, maar hoogs veranderlik tussen individue van dieselfde geslag of voortplantingstadium; of wat in dieselfde tydperk van die jaar versamel is. Alhoewel funksies van kloakale kliere steeds onduidelik bly, word twee hooffunksies voorgestel: a) ‘n meganiese funksie, byvoorbeeld as smeermiddel of as ‘n substraat vir geslagsprodukte en b) ‘n kommunikasie funksie, byvoorbeeld in die vrystelling van feromone. Ek stel voor dat die urodeaalkliere eerder by ‘n voortplantingsfunksie betrokke is, aangesien baie min sekreet gedurende die paarseisoen vervaardig word terwyl klieraktiwiteit rondom geboorte ‘n piek bereik. Die teenoorgestelde mag geld vir proktodeaalkliere, maar vereis verdere ondersoek. Veral ‘n chemiese analise van die sekresie en gedragsmanipulasie sal nuttig wees om ‘n moontlike rol van hierdie kliere in sosiale kommunikasie te bepaal.
Araujo, Alexandre Fernandes Bamberg de. "Partilha de recursos em uma guilda de lagartos de restinga (sauria)." [s.n.], 1985. http://repositorio.unicamp.br/jspui/handle/REPOSIP/316297.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia
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Resumo: Nove espécies de lagartos vivem em simpatria na restinga de Barra de Maricã, Rio de Janeiro. As duas famílias mais estudadas mostraram diferenças nas estratégias de forrageamento, que ajudaram a permitir coexistência. Membros da família ¿senta-e-espera¿ Iguanidae, Tropidurus torquatus e Liolaemus lutzae, demonstraram similaridades com respeito às suas dietas, bem como ao horário de forrageamento, mas diferiram em habitat. T. torquatus tem coloração críptica adaptada à área com moitas e ocorre apenas nesta formação, enquanto que Liolaemus lutzae tem coloração críptica apropriada para as dunas de areia e corre principalmente na praia, em agregados de gramíneas junto ao oceano ... Observação: O resumo, na íntegra, poderá ser visualizado no texto completo da tese digital
Abstract: Nine lizard species 'live in simpatry in beach dune vegetation of Barra de Maricá, RJ.The two most studied families showed differences in feeding strategies that helped allow co-existence. Members of the. "sit-and-wa:Lt" family Iguanidae, Tropidurus torquatus and Liolaemus lutzae, demonstrated similarities with respect to their diets as well as foraging schedules, but differed in habitat. T. torquatus has cryptic coloration adapted to the shrub area and occurs only in that formàtion, while L.lutzae has cryptic coloration apropriate to sandy dunes and occurs mainly on the beach, in grass patches near the oceano ... Note: The complete abstract is available with the full electronic digital thesis or dissertations
Mestrado
Mestre em Ecologia
Costa, João Carlos Lopes. "Nicho trofico de Tropidurus hispidus (Sauria: Tropiduridae) em ambiente de restinga." [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/316377.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia
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Resumo: A dieta é um dos principais atributos do nicho ecológico de qualquer espécie animal. Geralmente nos estudos ecológicos os indivíduos de uma população são considerados ecologicamente equivalentes em relação ao uso de recurso. Contudo, esta abordagem tem se mostrada inadequada na descrição da utilização de recurso para várias espécies, como demonstrado por dados empíricos. A variação intrapopulacional pode ser ocasionada por fatores exógenos ou fenômenos endógenos ocasionados pelas diferenças sexuais e/ou ontogenéticas. Além disso, indivíduos pertencentes à mesma classe etária, ao mesmo sexo e dentro da mesma localidade podem também exibir variação no nicho. Esse fenômeno é denominado de "especialização individual" e sua ocorrência tem sido descrita para comunidades temperadas ou depauperadas até o presente momento. Para verificar quais fenômenos podem produzir a variação no nicho de lagartos tropicais foi utilizado como modelo Tropidurus hispidus. Os objetivos deste estudo foram: descrever a composição da dieta; investigar a existência de variação intrapopulacional no nicho trófico; determinar em que níveis essa variação se expressa; e testar se a morfologia é um mecanismo subjacente ao uso de recursos alimentares nesta espécie. Dentre os fenômenos analisados, a variação intrapopulacional parece ser ocasionada unicamente pela especialização individual. Os itens mais consumidos por T. hispidus, formigas, besouros e cupins, produzem uma variedade de substâncias químicas tóxicas que podem impor um alto custo para desintoxicação e gerar preferências alimentares individuais. Outra possível fonte de variação é a ocorrência de diferentes comportamentos de forrageio por indivíduos da mesma população. Este é o primeiro registro da ocorrência de especialização individual em lagartos tropicais e reforça a percepção de que esse fenômeno esta presente em comunidades tropicais de alta diversidade, contrariando o padrão estabelecido na literatura, relacionando à ocorrência da especialização individual a comunidades temperadas e depauperadas.
Abstract: The diet is one of the main atributes of the ecological niche of animal species. Generally, the individuals of a population are considered ecologically equivalent in ecological studies that focus on resource use. Nevertheless, this approach has been inadequate to correctly describe resource use by various species, as demonstrated by empirical data. Intrapopulation variation may be caused by exogenous factors or endogenous phenomena such as sexual and/or ontogenetic differences. Additionally, individuals belonging to the same age or sex, and within a single site or time can also show differences in niche. This phenomenon has been defined as "individual specialization" and its occurrence is related to temperate and/or depauperate communities. To verify which phenomena produce niche variation in tropical lizards, we used Tropidurus hispidus as a model system. The aims of this study were to describe the diet composition; to investigate the existence of intrapopulational variation in trophic niche; to determine at which levels this variation is expressed, and test if the morphology is an underlying mechanism in food resource use in this species. The intrapopulation variation seems to be caused uniquely by individual specialization. The most consumed items by T. hispidus, ants, beetles and termites, produce a variety of toxic chemical substances that can impose a high cost for desintoxication and generate individual alimentary preferences. Another possible source of variation is the occurrence of different forage behaviors by individuals of the same population. This is the first record of the occurrence of individual specialization in tropical lizards, which suggests the presence of this phenomenon in highly diverse tropical communities, contradicting the established literature relating the occurrence of individual specialization to temperate and depauperate communities.
Mestrado
Mestre em Ecologia
Theophil, Friederike [Verfasser], and Jutta [Akademischer Betreuer] Keller. "Bedeutung der Magenentleerungsgeschwindigkeit für das Ausmaß von saurem und nicht-saurem gastroösophagealem Reflux in Abhängigkeit von Morphologie und Kontraktilität des gastroösophagealen Übergangs / Friederike Theophil ; Betreuer: Jutta Keller." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2020. http://d-nb.info/1214370233/34.
Full textTheophil, Friederike Verfasser], and Jutta [Akademischer Betreuer] [Keller. "Bedeutung der Magenentleerungsgeschwindigkeit für das Ausmaß von saurem und nicht-saurem gastroösophagealem Reflux in Abhängigkeit von Morphologie und Kontraktilität des gastroösophagealen Übergangs / Friederike Theophil ; Betreuer: Jutta Keller." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2020. http://nbn-resolving.de/urn:nbn:de:gbv:18-105413.
Full textJones, Alexander Graham. "The evolutionary history of Sphaerodactylus fantasticus (Sauria: Gekkonidae) and its close relatives." Thesis, Bangor University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298636.
Full textBiallas, Sandra. "Zur Bedeutung von Endoparasiten bei Chamäleons (Sauria: Chamaeleonidae) aus Wildfängen und Nachzuchten." Doctoral thesis, Universitätsbibliothek Leipzig, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-133462.
Full textIn the present study 212 chameleon fecal samples were examined for parasite stages and 75 carcasses were examined histopathologically and pathologically in a proven case of a parasite infestation. The basis of this study was to describe the occurrence and harmful effects of internal parasites considering the origin, age and sex of the chameleons. Of the 212 fecal samples 55.2% showed stages of endoparasites. Parasites were detected at 54.7% of 64 evaluated and dissected animals. The proportion of positive samples shows no significant difference between offspring (55.5%) and wild specimens (54.1%). In wild specimens common internal parasites could be determined with an indirect life cycle, however offspring harbored more parasites with a direct life cycle. In the studied chameleons coccidia as the genus Isospora and Oxyurids were regularly detected. In the coprological study Cestodes could not be found, while in the pathological examination they could be diagnosed sporadically in the intestine. Based on the total number of investigated chameleons the frequency of detection of parasite stages are presented as follows: Protozoa were found in 30.4%, 21.7% of the animals were infected with coccidia (of which 78,3% Isospora spp, 13,0% Choleoeimeria spp., 6.5% Eimeria spp., 2.2% polyinfections between Isospora spp./ Choleoeimeria spp.) and 8.5% with flagellates or ciliates. At 83.3% of the animals with gastrointestinal symptoms coccidia of the genus Isospora were detected. In 38.7% of the fecal examination nematodes were determined (65.9% Oxyurids, 19.5% Ascarids/ Heterakis, 1.4% Rhabdias sp., 2.8% Strongyloides sp., 0.5% Spirurida, Heterakids/ Filariae, Oxyurids/ Strongyloides sp.) and Trematodes in 2.8% (Digenea) were found. The anamnesis showed that clinical symptoms could be observed in 35.8% of all of the animals, whereas endoparasite infestation could be detected inn 88.2% of the affected animals. Overall, 64.1% of the dissected chameleons were infested with parasites, of which 68.3% harbored mono- and 31.7% polyinfections. In 31.3% of the dissected chameleons nematode infestations were found and 55.0% of these cases were classified as severe. Prevalences were registered: 25.0% for Strongyloides spp., 23.4% for Ascarids/ Heterakids, 15.0% for Filaria, 5.0% for Rhabdias sp., 9.4% for Cestodes, 10.9% for Digenea. In 11.3% of the cases mixed infections were reported. Thus, endoparasite infestation is common among chameleons and can lead to diseases. Exposure differs from wild-specimens and captive-bred due to the different environmental conditions. Also, 27.8% of clinically healthy animals were also infested with parasites, which means that clinical symptoms are not necessarily the result of a parasitic infestation. Overall, chameleon endoparasites deserve the attention of veterinarians and pet owners and should be treated promptly when there is a high likelihood of infection or hygiene is of concern
Magerkurth, Olaf. "Nachweis von saurem glialen Faserprotein (GFAP) in humanem Serum und erste klinische Ergebnisse." Diss., lmu, 2003. http://nbn-resolving.de/urn:nbn:de:bvb:19-16561.
Full textMakokha, Jane Sakwa. "Molecular phylogenetics and phylogeography of sand lizards, Pedioplanis (Sauria: Lacertidae) in southern Africa." Thesis, Stellenbosch : Stellenbosch University, 2006. http://hdl.handle.net/10019.1/21673.
Full textENGLISH ABSTRACT: The present study aims to determine the phylogenetic relationships among the sand lizards, Pedioplanis. In addition, a single mitochondrial gene is used to investigate the geographic genetic structure of the widey distributed P. burchelli. With 11 species, Pedioplanis is the most speciose genus among the southern African genera of the family Lacertidae. All the species are restricted to the subcontinent with the exception of three (P. namaquensis, P. undata and P. benguellensis), which extend their range northwards into Angola. A total of 2200 nucleotide positions derived from two mitochondrial markers (ND2 and 16S rRNA) and one nuclear gene (RAG-1) are used to determine the phylogenetic relationships among ten of the eleven Pedioplanis species. The first well resolved gene tree for the genus, drawn from 100 individuals, is presented and this is largely congruent with a phylogeny derived from morphology. Contrary to some previous suggestions, Pedioplanis forms a monophyletic assemblage with Heliobolus and Nucras. The genus Pedioplanis is monophyletic with P. burchelli/P. laticeps forming a sister clade to all the remaining congeners. Two distinct geographic lineages can be identified within the widespread P. namaquensis; one occurs in Namibia, while the other occurs in South Africa. The “P. undata” species complex is monophyletic, but one of its constituent species, P. inornata, is paraphyletic. Relationships among the subspecies of P. lineoocellata are much more complex than previously documented. An isolated population previously assigned to P. l. pulchella is paraphyletic and sister to the three named subspecies. The phylogeny identifies two biogeographical groupings that probably diverged during the mid-Miocene. The development of the Benguella Current could have initiated isolation mechanisms associated with changes in habitat that could have generated barriers and played a role in the evolution of this group. At the lower taxonomic level, the mtDNA phylogeographic structure of the wide spread P. burchelli in South Africa reveal at least six distinct clades that are geographically partitioned. The first one is restricted to the eastern mountains along the Great Escarpment (GE). The next three are found along the Cape Fold Mountains (CFM): the north-west CFM, central CFM and eastern CFM. The fifth one shares samples from central CFM and GE. The last clade is restricted to the eastern central mountains of the GE. These six geographic groupings are genetically divergent from each other and they started separating in the early Pliocene period. Phylogeographic studies on other taxa in the region have found different levels of genetic structuring among or within taxa. The fact that P. burchelli is restricted to high altitude areas could have resulted in limited dispersal and consequently contributed to its geographic structure. However, the exact cause of the pattern obtained is not readily apparent. Habitat fragmentation in the past is probably one of the most influential factors shaping the genetic distribution of the species across South Africa. The inclusion of nuclear markers will shed more light on the evolutionary history of P. burchelli in South Africa.
AFRIKAANSE OPSOMMING: Die huidige studie stel ten doel om ‘n filogenie daar te stel vir die Sand akkedisse, Pedioplanis. ‘n Enkele mitochondriale geen is ook gebruik om die geografiese genetiese struktuur van die wydverspreide P. burchelli vas te stel. Met 11 spesies is Pedioplanis die mees spesieryke genus onder die suidelike Afrika genera wat aan die Lacertidae familie behoort. Al die spesies is beperk tot die subkontinent met die uitsondering van drie (P. namaquensis, P. undata en P. benguellensis), wat ‘n uitgebreide verspreiding het noordwaarts tot in Angola. ‘n Totaal van 2200 nukleotied posisies wat afkomstig is van twee mitochondriale merkers (ND2 en 16S rRNA) en een nukluêre geen (RAG-1) is gebruik om die filogenetiese verwantskappe tussen 10 van die 11 Pedioplanis spesies vas te stel. Die eerste goed geondersteunde geen boom vir die genus, gebasseer op 100 individue, is verkry en dit is meestal ooreenstemmend met ‘n filogenie gebasseer op morfologie. In teenstelling met sekere voorstelle van die verlede vorm Pedioplanis ‘n monofiletiese groep tesame met Heliobolus en Nucras. Die genus Pedioplanis is monofileties met P. burchelli/P. laticeps wat ‘n suster groep vorm van al die oorblywende lede van die genus. Twee herkenbare geografiese lyne kan geidentifiseer word in die wydverspreide P. namaquensis; een kom in Namibia voor, terwyl die ander een in Suid Afrika voorkom. Die “P. undata” spesies kompleks is monofileties, maar een van die spesies wat deel uitmaak van die groep, P. inornata, is parafileties. Verwantskappe tussen die subspesies van P. lineoocellata is meer kompleks as wat aanvanklik aanvaar is. ‘n Geisoleerde bevolkimg wat voorheen toegesê is aan P. l. pulchella is parafileties en verteenwoordig ‘n suster groep van die benaamde subspesies. Die filogenie identifiseer twee biogeografiese groeperings wat moontlik gedivergeer het gedurende die middel-Miocene. Die ontwikkeling van die Benguella stroom het dalk versperrings geinisiëer as gevolg van die gesamentlike veranderinge in habitat wat dalk ook ‘n rol gespeel het in die evolusie van die groep. Op die laer taksonomiese vlak het die mtDNA filogeografiese struktuur van die wydverspreide P. burchelli in Suid Afrika ten minste ses groepe aangetoon wat geografies van mekaar geskei is. Die eerste een is beperk tot die oostelike berge wat aan die Groot Eskarpement (GE) behoort. Die volgende drie word gevind in die Kaapse Vouberge (KVB): die noord-westelike KVB, sentrale KVB en oostelike KVB. Die vyfde een deel eksemplare van beide die GE en die KVB. Die laaste groep is beperk tot die oostelike en sentrale berge van die GE. Hierdie ses geografiese groepe is geneties geskei van mekaar en hulle het begin om apart te ontwikkel gedurende die vroë Pliocene periode. Ander filogeografiese studies in die area het verskillende vlakke van genetiese struktuur vertoon tussen en binne taksa. Die feit dat P. burchelli beperk is tot hoogliggende dele kon moontlik bygedrae het tot die geografiese struktuur. Die presiese oorsaak van die patroon wat verkry is, is nie ooglopend nie. Habitat fragmentasie in die verlede is moontlik een van die mees invloedrykste faktore wat die genetiese verspreiding van die spesie in Suid Afrika beinvloed het. Die insluiting van nukluêre merkers sal meer lig warp op die evolusionêre geskiedenis van P. burchelli in Suid Afrika.
Nunez, Steven C. "Behavioral, temporal, and spatial relationships in free-ranging female Anolis carolinensis (Sauria: Polychridae)." Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-06162009-063313/.
Full textDiehl, Luciana Schramm. "Biologia reprodutiva de cercosaura schreibersii (Wiegmann, 1834) (sauria: gymnophthalmidae) no sul do Brasil." Pontifícia Universidade Católica do Rio Grande do Sul, 2007. http://hdl.handle.net/10923/5380.
Full textThe reproductive biology of Cercosaura schreibersii was studied on 80 animals captured at the Centro de Pesquisas e Conservação da Natureza Pró-Mata (29°28’ S, 50°10’ W), São Francisco de Paula, Rio Grande do Sul, Brazil. Animals are deposited at Museu de Ciências e Tecnologia da PUCRS. The female reproductive cycle was clearly seasonal, with reproductive period beginning in October and ending in January. Females with eggs or follicles larger than 1. 5 mm were considered as reproductive. Minimum size at maturity for females was 34. 7 mm of SVL (snout-vent length). The simultaneous presence of eggs and enlarged follicles suggested that females lay multiple clutches in the same breeding season. Males showed no evidence of seasonal cycles in testis size, and all males were mature, with convoluted epididymides except captive born young animals. The smallest mature male had 21 mm SVL. Sexual dimorphism was evident from counting femoral pores. Females presented from two to six femoral pores, and males presented six to ten pores. Through the analysis of morphometrical power functions, significant differences were detected between males and females in 10 of 13 adjusted regressions. A multiple logistic regression model was also adjusted from the residuals of coupled (male plus females) morphometric regressions. The model was able to correctly identify 34 among 37 females (92% correct) and 38 among 43 males (88% correct).
No presente trabalho foi estudada a biologia reprodutiva de Cercosaura schreibersii, a partir de 80 exemplares provenientes do Centro de Pesquisas e Conservação da Natureza Pró-Mata (29°28’ S, 50°10’ W), São Francisco de Paula, Rio Grande do Sul, Brasil. Os animais analisados encontram-se depositados no Museu de Ciências e Tecnologia da PUCRS. Observou-se um caráter claramente sazonal no ciclo reprodutivo das fêmeas, estendendo-se de outubro a janeiro. Considerou-se como reprodutiva toda fêmea com ovos ou folículos vitelogênicos de comprimento maior ou igual a 1,5 mm. A menor fêmea reprodutiva encontrada na amostra possuía comprimento rostro-cloacal de 34,7 mm. A presença simultânea de folículos vitelogênicos e ovos na mesma fêmea sugeriu a existência de mais de uma desova por período reprodutivo. Os machos não apresentaram qualquer padrão sazonal de variação do comprimento testicular, sendo que todos os animais, à exceção de animais recém-eclodidos em cativeiro, apresentaram epidídimo enovelado. O menor macho maduro possuiu 21 mm de CRC. Através da contagem de poros femorais foi identificada a existência de dimorfismo sexual, sendo que fêmeas apresentaram um número total de poros femorais entre dois e seis, enquanto em machos observou-se de seis a dez poros. Para a análise de dimorfismo sexual também foram ajustadas funções potência, relacionando diversas medidas morfométricas, identificando-se diferenças significativas entre os sexos em dez dentre as 13 regressões ajustadas. Como abordagem complementar para a diferenciação sexual, ajustou-se um modelo de regressão múltipla logística, o qual foi capaz de identificar o sexo dos exemplares com margem de acerto de 92% (34 dentre 37 animais) para fêmeas e 88% para machos (38 dentre 43 animais).
Grizante, Mariana Bortoletto. "Relações evolutivas entre ecologia e morfologia serpentiforme em espécies de lagartos microteiídeos (Sauria: Gymnophthalmidae)." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/59/59139/tde-23042010-160905/.
Full textEvolution of snakelike morphology, characterized by both body elongationand and limb reduction, has ocurred several times during evolutionary history of Squamata. Changes in morphological parameters related to locomotion directly affect organismal performance in several activities that are crucial to survival and descendent produciton. Therefore, these morphological changes are expected to be adaptive to the environment where the organism occurs. Ecomorphological studies suggests that the evolution of snakelike morphologies in Squamata ocurred frequently associated to the ocupation of different habitats, giving rise to two distinct ecomorphs: grass-swimming species, which generally have elongation of trunk and tail, and fossorial species, which generally have elongation of trunk and short tail. The aim of the present study was to investigate the existence of evolutionary relationships between ecology and morphological aspects like body elongation and limb reduction in species of neo-tropical lizard family Gymnophthalmidae, evaluating how these evolutionary changes affect locomotor performance.
Biallas, Sandra [Verfasser], Arwid [Akademischer Betreuer] Daugschies, Arwid [Gutachter] Daugschies, and Rüdiger [Gutachter] Korbel. "Zur Bedeutung von Endoparasiten bei Chamäleons (Sauria: Chamaeleonidae) aus Wildfängen und Nachzuchten : Zur Bedeutung von Endoparasiten bei Chamäleons(Sauria: Chamaeleonidae) aus Wildfängen und Nachzuchten / Sandra Biallas ; Gutachter: Arwid Daugschies, Rüdiger Korbel ; Betreuer: Arwid Daugschies." Leipzig : Universitätsbibliothek Leipzig, 2014. http://d-nb.info/1238600182/34.
Full textMaier, Michaela [Verfasser], and Lieselotte E. [Akademischer Betreuer] Saurma. "Albert E. Henselmann (1890-1974) : Der Weg zur Form? / Michaela Maier ; Betreuer: Lieselotte E. Saurma." Heidelberg : arthistoricum.net, 2002. http://d-nb.info/1204140537/34.
Full textVan, Sluys Monique. "Dieta de Tropidurus Itambere Rodrigues (Sauria ; Iguanidae) na Fazenda Manga, Municipio de Valinhos, São Paulo." [s.n.], 1991. http://repositorio.unicamp.br/jspui/handle/REPOSIP/316122.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia
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Mestrado
Ecologia
Mestre em Ciências Biológicas
Lerner, Ann Marie Kroll. "Iron age nomads of the Urals interpreting Sauro-Sarmatian and Sargat identities /." Diss., Connect to online resource - MSU authorized users, 2006.
Find full textRocha, Carlos Frederico Duarte da. "Estrategia e ciclo reprodutivo de Liolaemus luizae (Sauria iguanidae) na restinga de Barra de Marica, RG." [s.n.], 1989. http://repositorio.unicamp.br/jspui/handle/REPOSIP/315795.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia
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Resumo: A estratégia, o ciclo reprodutivo e o crescimento do lagarto das dunas de restinga, Liolaemus Jutzae, foi estudado ao longo de dois anos na restinfa de Barra de Marica, Rio de Janeiro. Os resultados mostraram que estes lagarto possui uma reprodução sazonal bem acentuada, que esteve relacionada com a pluviosidade na área. As fêmeas reservam gorduras nos corpos gordurosos durante a estação seca, investindo essa reserva na produção da primeira ninhada, no início da estação reprodutiva (setembro-março). Em geral o recrutamento iniciou-se na segunda quinzena de dezembro, em ambos os anos estudados, terminando em maio-junho. Ambos os sexos maturaram na primeira estação reprodutiva após o nascimento, com uma idade de aproximadamente 8 meses. O menor comprimento rostro-anal na maturidade foi de 51,5mm para as fêmeas e de 61,1 mm para os machos. O tamanho da ninhada variou de 1 a 4 ovos, embora os extremos tenham sido raros. O tamanho corporal explica pequena parte da variação no tamanho da ninhada, que apareceu ser relativamente fixa (2 ovos) nesta espécie. Observações sobre fêmeas, marcadas no campo sugerem que pelo menos três ninhadas sucessivas são possíveis para fêmeas de segundo ano (potencial reprodutivo de 6 a 8 ovos), mas apenas suas para fêmeas de primeiro ano (potencial reprodutivo de 4 a 5 ovos) ...Observação: O resumo, na íntegra, poderá ser visualizado no texto completo da tese digital
Abstract: The reproductive strategy, cycle and growth of the sand dunes lizard Liolaemus lutzae was studied during two years at restinga de Barra de Maricá, Rio de Janeiro, Brazil. The lizard showed a marked sazonality in reproduction related to rainfall. Femalles reserved fat in fat bodies during drought periods, investing it in the production of the first clutch in the beginning of the reproductive season. Recruitment began in the middle of December and terminated in may-june of the following year. Individuals of both sexes matured in the first reproductive season after birth, attaining sexual maturity at an age of approximately B months. The minimun snout-vent length at maturity for females (51,5 mm) differed from that of males (61,1 mm). Clutch size varied from 1 to 4 eggs but most had 2. Female body size explained small part of the variation in clutch size. Observation on marked females suggested that at least three clutches are possible for second year females but two for first year females per reproductive season. Juvenile males had a significantly higher average growth rate ('delta¿ = 0,145 mm/day) than juvenile females ('delta¿=0,121mm/day). Additionaly, females showed a marked reduction in growth rate at maturity while males of equivalent size continued to increase in size at higher growth rate ...Note: The complete abstract is available with the full electronic digital thesis or dissertations
Mestrado
Ecologia
Mestre em Ciências Biológicas
Vrcibradic, Davor. "Ecologia de mabuya frenata (Sauria, scincidade) em uma area de afloramentos rochosos no sudeste do Brasil." [s.n.], 1995. http://repositorio.unicamp.br/jspui/handle/REPOSIP/315817.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia
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Resumo: Mabuya frenata é um lagarto scincídeo comum na área da Fazenda Manga em Valinhos, SP, um ambiente com acentuada variação sazonal no clima. Neste estudo foram analisados diferentes aspectos de sua ecologia (atividade, ecologia termal, uso do habitat e dieta) na área em questão. A atividade de M frenata abrangeu praticamente todo o período diurno e diferiu entre as estações, sendo mais uniforme ao longo do dia na estação úmida do que na estação seca. A temperatura corpórea média em atividade de M frenata foi de 31,6 ± 3,2 °C e esteve correlacionada com as temperaturas do ar e do substrato onde ocorre, embora o ganho de calor através da insolação direta também seja presumivelmente importante para esse lagarto. A temperatura média em atividade de M frenata não diferiu entre as estações, ao contrário das temperaturas do ambiente, o que, juntamente com as observações no campo, sugere que esse lagarto termorregula ativamente. O microhabitat preferencialmente utilizado por essa espécie foram as rochas, que são abundantes na área. Sua dieta incluiu uma grande variedade de artrópodes, embora os cupins tenham sido os itens predominantes. A dieta de M frenata não diferiu entre as estações e esteve relacionada com a oferta de presas no ambiente. Também não houve diferenças sexuais na composição da dieta, embora as fêmeas aparentemente consumam um espectro mais amplo de tamanhos de presa, provavelmente por atingirem maiores tamanhos corporais. Os dados indicaram que os aspectos da ecologia de M frenata como temperatura corpórea em atividade, padrão de forrageamento e dieta, são intermediários em relação a outros lagartos cujas tendências ecológicas são relativamente bem definidas
Abstract: Mabuya frenata is a relatively common skink in the area of Fazenda Manga, Valinhos, SP, which has a highly seasonal climate. In this study, various aspects of its ecology (activity, thermal ecology, habitat use and diet) were analysed in the area at issue. Its activity comprised almost all diurnal period and differed between seasons, being more uniform along the day in the rainy season than in the dry season. The mean body temperature of active M frenata was 31,6 ± 3,2 °C and was correlated to those of the air and substrate where it occurs, although direct insulation is also a presumably important source of heat for this lizard. Unlike environmental temperatures, the mean activity temperature of M frenata did not differ among seasons, which, combined with field observations, suggests that this lizard thermorregulates actively. The microhabitat preferred for M frenata were granitic boulders, which abound in the area. Its diet included a great variety of arthropods, although termites were the dominant items. The diet of M frenata did not differ between seasons and was related to prey availability in the environment. There were also no sexual differences in diet composition, although females apparently consume a wider spectrum of prey sizes, probably because they attain larger adult size. The data indicated that the ecological aspects of M frenata like foraging strategy, diet, and active body temperature are intermediate compared to other species of lizard whose ecological tendencies are relatively clear-cut
Mestrado
Mestre em Ciências Biológicas
Ramírez, Peralta César Augusto, and Peralta César Augusto Ramírez. "Ciclo reproductivo de Microlophus peruvianus (Lesson, 1826) (Sauria, Tropiduridae) de la costa de Huaura, Lima (Perú)." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2017. http://cybertesis.unmsm.edu.pe/handle/cybertesis/6553.
Full textContribuye al conocimiento de la biología y ecología reproductiva de M. peruvianus. Los resultados indican que esta especie presenta ciclo reproductivo estacional, determinado por el ciclo ovárico. Tanto los volúmenes ováricos como los testiculares presentaron correlación positiva con la humedad relativa, y correlación negativa con la temperatura y las horas de luz diurna. Reporta que la talla de la primera madurez sexual es de 61.6 mm en hembras y de 63.9 mm en machos. El tamaño de puesta es de 4.24 (±1.56, n=34) con un rango de 2 a 7 huevos, este se relaciona directamente con el tamaño de las hembras y se sugiere puestas anuales múltiples. El ciclo de cuerpos grasos es estacional. Se determina dimorfismo sexual en tamaño corporal así como en patrones de coloración gular y de flancos del cuerpo. Estos resultados permiten evidenciar las estrategias reproductivas que esta especie utiliza para reproducirse en los ambientes litorales del desierto costero, estos están modulados principalmente por las condiciones termales y la disponibilidad de recursos alimenticios, expresándose en una gran capacidad para adaptarse a los ambientes áridos.
Tesis
Salizar, Vásquez Patricia Teresa. "Helmintos parásitos de Dicrodon guttulatum, Dúmeril y Bibron, 1893 (Sauria : Teiidae) de la Costa del Perú." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2008. https://hdl.handle.net/20.500.12672/886.
Full textIt was studied some ecological aspects of helmintofauna of 38 samples of Dicrodon guttulatum from Collection of Herpetology of the Natural History Museum (28) and one collects done by the personnel of the Department of Helmintology (10). The simples examined were, 13 females, 16 males and 9 youthful ones. The helminthes were collected, identified and registered using conventional technical. Were 8 species of helminthes: Oochoristica freitasi and Oochoristica Iguanae (Cestoda); Pharyngodon micrurus, Parapharyngodon moqueguensis, Parapharyngodon lagitor, Parapharyngodon sp., Thelandros capacyupanquii and Physaloptera sp. (Nematoda). A total of 7941 helminthes was collected throughout the sampling, with an abundance of 208,974. The intensity average was 233,559 (2 - 2486). Four host did not display helminthes, 18 host displayed infection with a species of helminthe and 16 had multiple infection with 2, 3 and 4 species of helminthes. Was significance of the length in the infection of Parapharyngodon sp and Thelandros capacyupanquii. The diversity of the infracommunities according to the reciprocal of Simpson (I/IS) by departments varied from 3,05 to 4,13 and by ecorregiones it varied from 2,77 to 4,87. One was that the communities of helminthes between Ancash-La Libertad share all the species and display very similar structures.
Tesis
Ramírez, Peralta César Augusto. "Ciclo reproductivo de Microlophus peruvianus (Lesson, 1826) (Sauria, Tropiduridae) de la costa de Huaura, Lima (Perú)." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2017. https://hdl.handle.net/20.500.12672/6553.
Full textContribuye al conocimiento de la biología y ecología reproductiva de M. peruvianus. Los resultados indican que esta especie presenta ciclo reproductivo estacional, determinado por el ciclo ovárico. Tanto los volúmenes ováricos como los testiculares presentaron correlación positiva con la humedad relativa, y correlación negativa con la temperatura y las horas de luz diurna. Reporta que la talla de la primera madurez sexual es de 61.6 mm en hembras y de 63.9 mm en machos. El tamaño de puesta es de 4.24 (±1.56, n=34) con un rango de 2 a 7 huevos, este se relaciona directamente con el tamaño de las hembras y se sugiere puestas anuales múltiples. El ciclo de cuerpos grasos es estacional. Se determina dimorfismo sexual en tamaño corporal así como en patrones de coloración gular y de flancos del cuerpo. Estos resultados permiten evidenciar las estrategias reproductivas que esta especie utiliza para reproducirse en los ambientes litorales del desierto costero, estos están modulados principalmente por las condiciones termales y la disponibilidad de recursos alimenticios, expresándose en una gran capacidad para adaptarse a los ambientes áridos.
Tesis
Chalcraft, David Richard. "Predation on lizard eggs by ants : interaction modifications in an unstable physical environment /." Thesis, This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-02132009-172044/.
Full textRocha, Carlos Frederico Duarte da. "Ecologia e comportamento de Liolaemus lutzae (Sauria: tropiduridae) em uma area de restinga do sudeste do Brasil." [s.n.], 1992. http://repositorio.unicamp.br/jspui/handle/REPOSIP/316340.
Full textTese (doutorado) - Universidade Estadual de Campinas, Instituto de Biologia
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Resumo: o endemismo de Liolaemus lutzae (fig 1) torna este lagarto uma das espécies animais mais caracteristicas do Estado do Rio de Janeiro. Este pequeno tropidurideo é endêmico das áreas de dunas e praias de restinga, seu habitat caracteristico (Fig 2), sendo encontrado apenas ao longo de 200 km da costa do Estado, entre a Restinga da Marambaia ao sul, e as praias de Cabo Frio, ao norte (Vanzolini & Ab'Saber, 1968; Rocha, ; 1986; 1992) (Fig. 3). Em Barra de Maricá, uma restinga localizada a aproximadamente 38 km a leste da cidade do Rio de Janeiro (Fig 3), ocorrem nove espécies de lagartos mas, L. lutzae é a única que vive no habitat de praia. O mesmo ocorre em todos os habitats de praia do Estado em que L. lutzae é encontrado. Esta exclusividade no habitat de praia pode resultar das caracteristicas deste ambiente, que podem restringir o sucesso na ocupação para muitas espécies de répteis. A restinga da Barra de Maricá é uma área situada em região tropical, com acentuada sazonal idade na pluviosidade, resultando em uma estação de chuvas no verão (dezembro a março) e uma estação seca no inverno (junho a setembro). Em ambientes marcados por sazonalidade na precipitação, em geral, ocorrem marcadas variações na abundância de artropodos ou na produtividade em geral (Pipkin, 1965; Ballinger & Ballinger, 1979; Janzen & Schoener, 1968). Essas variações na umidade ambiental e, consequentemente, nos recursos disponiveis pode influenciar as populações de lagartos vivendo nessas áreas. fazendo-as mudar em numero e densidade como resposta às variações do ambiente (Dunham, 1983) . A sazonalidade em Barra de Maricá, portanto, provavelmente influi nos parâmetros populacionais de L. lutzae (veja Capitulo 1). o habitat de praia é uma área com baixa produtividade em termos de artrópodos (veja Capitulo 3), que constituem o principal recurso alimentar para muitas espécies de lagartos, especialmente as de pequeno tamanho. Isto pode exigir que para um espécie de lagarto ocupar o habitat de praia, ela tenha de explorar fonte alternativa e/ou outras fontes disponiveis de alimento tais como as plantas. Contudo, o consumo de plantas por lagartos encontra restrições fisiológicas. Devido principalmente à dificil digestão da celulose e resulta em necessidades térmicas adicionais (Pough. 1973). Um ambiente tropical aberto, de substrato arenoso e com cobertura vegetal rala, recebendo considerável grau de insolação, resulta em temperaturas ambientais elevadas durante grande parte do dia (veja Capitulo 2), que podem ser letais para répteis. Isto requer a utilização seletiva das fontes de calor ambiental para a regulação da temperatura corpórea. Assim, as necessidades térmicas de L. lutzae provavelmente interagem com sua estratégia alimentar, influenciando o grau de herbivoria da espécie. Por outro lado, a taxa de consumo de plantas por um lagarto pode por sua vez influenciar a riqueza de espécies e a abundância de nematódeos endoparasitas do seu tubo digestivo. que necessitam de artropodos como hospedeiros intermediários (veja capitulo 4). Muitos predadores possuem sua eficiência de caça aumentada em áreas abertas. Por consequência estas áreas possuem elevado risco de predação, requerendo mecanismos apropriados de escape a predadores e coloração vantajosa nesse tipo de habitat (veja Capitulo 5). Na presente tese, ao longo de 5 capitulos estudo diferentes aspectos da ecologia e do comportamento da Lagartixa-da-areia Liolaemus lutzae os quais se influenciam mutuamente e em parte auxiliam a explicar porque esta seria a única espécie de lagarto a ocupar com sucesso o habitat de dunas e praias de restinga do Rio de Janeiro
Doutorado
Ecologia
Doutor em Ciências Biológicas
Jordán, Arizmendi Juan Carlos. "Lagartijas del género Stenocercus (Sauria: Tropiduridae) como bioindicadores terrestres de contaminación ambiental en áreas mineras del Perú." Master's thesis, Universidad Nacional Mayor de San Marcos, 2012. https://hdl.handle.net/20.500.12672/12661.
Full textEvalúa el uso de la lagartija Stenocercus ornatissimus como bioindicadora terrestre de contaminación ambiental y el uso del test de micronúcleos como biomarcador de exposición para la evaluación de daño genotóxico en dos localidades ubicadas en la cuenca media del río Rímac, donde tradicionalmente se han desarrollado actividades mineras. Se evaluó un área de estudio localizada en el distrito de San Mateo de Huanchor (3289 msnm) y un área control, localizada en el distrito de San Jerónimo de Surco (2494 msnm), ambas en la provincia de Huarochirí, región Lima, Perú. No se presentaron diferencias en el uso de microhábitat ni tampoco variaciones morfológicas (longitud hocico-cloaca, peso e índice de condición corporal) entre las poblaciones del área de estudio y el área control. La frecuencia de micronúcleos no presentó diferencias significativas entre el área de estudio y el área control. Así mismo, no se encontró una relación significativa entre el índice de condición corporal y la frecuencia de micronúcleos. Se presentaron variaciones significativas en la concentración de metales en suelo entre el área de estudio y el área control, sin embargo, la concentración de cadmio, cromo, cobre, plomo y zinc no presentaron diferencias significativas entre el área de estudio y el área control. No se observaron relaciones significativas entre la frecuencia de micronúcleos y la concentración de metales tanto en el área de estudio y en el área control. Sin embargo, el promedio de frecuencia de micronúcleos así como la concentración de metales, incluyendo cadmio, cromo, cobre, plomo y zinc fueron mayores en el área de estudio que en el área control. Se propone el desarrollo de trabajos experimentales que permitan determinar el efecto individual de los metales detectados en el área así como las dosis mínimas ante las cuales se evidencian efectos genotóxicos en esta especie de lagartija para su uso como bioindicador.
Tesis
Haddad, Laura Saade. "O papel dos lipídios na reorganização metabólica associada à dormência sazonal no lagarto teiú Tupinambis merianae (Sauria, Teidae)." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/41/41135/tde-13022008-170743/.
Full textSeasonal dormancy is a widespread phenomenon among vertebrates, in which lipid stores in the body tissues constitute the major energy source during the prolonged fasting. In addition, there are recent evidence indicating a role played by the lipid metabolism and the fatty acids derived in the regulation of membrane functions, resulting in modulation of whole body metabolic rates in the organisms, as well as integrating nutritional and hormonal signals that promote metabolic responses to changes in fuel availability. The present study investigates the metabolic reorganization and lipidic and fatty acid composition in tissues and subcellular fractions from tegu lizards (Tupinambis merianae), associated with metabolic depression and fasting during seasonal dormancy. Maximum enzyme activities related to the catabolism of carbohydrates (PEPCK), lipids (CPT I, II), and proteins (GOT) in liver were estimated by spectrophotometry and radiochemical assay, the Na+K+ATPase activity was assayed in the liver by standard enzymatic methods, and the lipid and fatty acid composition were analysed in the abdominal fat bodies, plasma, skeletal muscle, and in liver whole tissue and mitochondrial fractions, using gas chromatography, during autumn activity, winter dormancy, arousal, spring activity, and in animals deprived of food for 20 days during activity. During the hypometabolic state, it was found: (1) a significant decrease in the aerobic capacity and gradual increase in the potential for oxidation of long-chain fatty acids in the mitochondria of liver tissue; (2) differential lipid and fatty acid composition in the fat bodies compared to the profiles obtained with plasma, muscle and liver tissue, suggesting selective mobilization of fatty acids; (3) no significant changes in the Na+K+ATPase activity in liver and significant changes in the total and individual fractions of MUFA and PUFA as a function of the seasonal cycle, in the opposite direction indicated by the theory of membranes as pacemakers of metabolism, suggesting however, an important role played by MUFA in the metabolic reorganization during seasonal dormancy.
Lopes, Gildevan Nolasco. "Variação Morfológica e Parasitismo em Cnemidophorus ocellifer (Sauria: Teiidae) de áreas de restinga da Ilha do Maranhão, Brasil." Universidade Federal do Maranhão, 2009. http://tedebc.ufma.br:8080/jspui/handle/tede/537.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior
This study compared the morphological variation among different populations of Cnemidophorus ocellifer in areas of restinga, and investigated the pattern of sexual dimorphism for this species in this region. Therefore, 130 specimens were collected from four independent areas of restinga in Maranhão Island (Panaquatira, Raposa, Araçagy, and São Marcos Beaches), and measured in the laboratory. Significant morphological differences occurred both for populations and sexes. The populations differed in both body size and shape. The lizards from Raposa showed larger sizes. And the lizards from Panaquatira had more morphological variation, showing shorter limbs and longer trunks. The males of C. ocellifer showed larger body and head, while females had more elongation of the body. The morphological differences were attributed to ecological processes suffered by different groups.
Este estudo comparou a variação morfológica entre populações de Cnemidophorus ocellifer presentes em áreas de restinga, e investigou o padrão de dimorfismo sexual para esta espécie nesta região. Para isso foram coletados 130 espécimes em quatro áreas independentes de restinga na Ilha do Maranhão (Praias de Panaquatira, Raposa, Araçagy e São Marcos) e mensurados em laboratório. Diferenças morfológicas significantes ocorreram tanto para as populações quanto para os sexos. As populações divergiram tanto no tamanho do corpo quanto na forma. Os lagartos da Raposa apresentaram maiores tamanhos. E os lagartos de Panaquatira tiveram maior variação morfológica, apresentando menor comprimento dos membros locomotores e maior alongamento do meio do corpo. Os machos de C. ocellifer apresentaram maior tamanho do corpo e da cabeça, enquanto que as fêmeas apresentaram maior alongamento do corpo. As divergências morfológicas encontradas foram atribuídas a processos ecológicos diferenciados sofridos pelos grupos.
Bianchi, Sauro Verfasser], and Bodo [Akademischer Betreuer] [Saake. "Extraction and characterization of bark tannins from domestic softwood species / Sauro Bianchi ; Betreuer: Bodo Saake." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2017. http://d-nb.info/1126115967/34.
Full textFreitas, Paulo Ragner Silva de. "Ecologia comparativa dos lagartos Phyllopezus Periosus e Phyllopezus Pollicaris (Sauria: Phyllodactylidae) em simpatria em área de caatinga no Nordeste do Brasil." Universidade Federal da Paraíba, 2013. http://tede.biblioteca.ufpb.br:8080/handle/tede/7877.
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The dimensions in which species share resources can be classified into three general axis: food, habitat and time. The degree of sharing can be set indirectly throughout morphological differences, foraging mode and the use of space by sympatric species. This study presented two chapters, the first of which is entitled “Niche partitioning between the sympatric lizards Phyllopezus periosus and Phyllopezus pollicaris (Sauria: Phyllodactylidae) in a Caatinga area in northeastern Brazil”. We presented data on habitat use, perch height, period of activity, diet and morphology for both species. The second chapter was to focus on the “Demographic aspects of sympatric lizards Phyllopezus periosus and Phyllopezus pollicaris (Sauria: Phyllodactylidae) in a Caatinga area in northeastern Brazil”. In this chapter, we estimated the probability of survival (apparent survival), recapture probability and population density of P. periosus and P. pollicaris. Data collection was conducted in a Caatinga area (divided into sub-areas I, II and III) in the Salgadinho municipality, Paraíba State, from April 2012 to March 2013. The search for lizards occurred between 18:00 and 5:00 am of the following day. For each individual observed and/or captured, we recorded the following information: date and time of observation, microhabitat use, time, morphometric measurements, and gender. The marking of lizards was performed using Visible Implant Fluorescent Elastomer (polymer thick liquid that once applied subcutaneously, solidifies, however, remained flexible and visible). The analysis of apparent survival and recapture probability were performed using the model Cormack-Jolly Sebber (CJS), in the software MARK 6.2. Estimates of population density were calculated by the sums the individuals sighted, divided by the area (sub-area I) used in the study. Both species occupied predominantly saxicolous microhabitats, being observed a high overlap in the use of different microhabitats. The perch height preferentially used by P. periosus and P. pollicaris was 0 and 60 cm. However, P. periosus occupied higher perches (421 to 540 cm). The first individuals of both species were sighted from 18:02 until 04:29 hours of the the following morning. The two species showed no significant differences in the activity period. The more consumed prey by P. periosus were Coleoptera, Formicidae and Hemiptera, while the most consumed items for P. pollicaris were Coleoptera, Isoptera and Araneae. Phyllopezus pollicaris presented both the trophic niche breadth based on prey number and volume higher compared to P. periosus. However, the two species showed high overlap in their diets. We not observed differences in the volume of consumed prey. Both differed in body size and body mass, but adults of P. periosus and P. pollicaris showed no intraspecific differences in body size and body mass in relation to sex. Phyllopezus periosus presented a recapture rate of 30%, while P. pollicaris showed an average rate of 19%. Only Phyllopezus pollicaris showed variation in recapture rate over time, that it was negatively correlated with average rainfall of each month. The estimated survival in both species was constant over time. Phyllopezus periosus and P. pollicaris survival estimates showed 66% and 94%, respectively. P. pollicaris presented population density greater than P. periosus throughout the study. The highest densities observed for P. periosus were in July and November 2012, as for P. pollicaris were in the months of May and November of the same year. Both species showed variations in their population abundances depending on the sub-sampled area. While P. pollicaris was more abundant in sub-area I, P. periosus was more abundant in the sub-area III. Variations in population abundances between these two species may contribute to the coexistence of the two species in the area.
As dimensões em que as espécies animais partilham recursos podem ser classificadas em três grupos gerais: tipo de alimento, habitat e tempo. A forma mais comum de segregação é por habitat, seguido por tipo de alimento e, por fim, divisão temporal. O grau de partilha de recursos pode ser definido indiretamente através das diferenças morfológicas, do tipo de forrageamento e da utilização dos recursos espaciais por espécies simpátricas. O presente estudo foi desenvolvido em dois capítulos, o primeiro deles é intitulado de “Partição de nicho entre os lagartos Phyllopezus periosus e Phyllopezus pollicaris (Sauria: Phyllodactylidae) em simpatria em uma área de Caatinga no Nordeste do Brasil”. Foram abordados dados sobre uso do habitat, altura de empoleiramento, período de atividade, dieta e morfometria em ambas as espécies de lagartos. No segundo capítulo, intitulado de “Aspectos demográficos dos lagartos Phyllopezus periosus e Phyllopezus pollicaris (Sauria: Phyllodactylidae) em simpatria em área de Caatinga no Nordeste do Brasil”, foi estimada a probabilidade de sobrevivência (sobrevivência aparente), probabilidade de recaptura e densidade populacional de P. periosus e P. pollicaris. A coleta de dados foi realizada em uma área (dividida nas sub-áreas I, II e III) de caatinga no município de Salgadinho – PB, durante os meses de abril de 2012 a março de 2013. A busca pelos lagartos ocorreu entre 18:00 e 05:00 horas do dia seguinte. Para cada indivíduo observado e/ou capturado, eram registradas as seguintes informações: data e horário da observação, categoria de microhábitat utilizado, altura do empoleiramento, medidas morfométricas, sexo e número de marcação. A marcação dos lagartos foi realizada através do Implante Visível de Elastômero Fluorescente (polímero líquido pastoso - que depois de aplicado subcutaneamente solidifica-se, porém, se mantendo flexível e visível). As análises de sobrevivência aparente e probabilidade de recaptura foram realizadas através do modelo Cormack-Jolly Sebber (CJS), no software MARK 6.2. As estimativas de densidade populacional foram calculadas através da soma dos indivíduos avistados, divididos pela área (sub-área I) utilizada no estudo. Ambas as espécies ocuparam predominantemente microhábitats saxícolas, sendo constatada uma alta sobreposição quanto ao uso dos diferentes microhábitats. A altura de empoleiramento utilizada preferencialmente por P. periosus e P. pollicaris foi de 0 e 60 cm, entretanto, P. periosus ocupou poleiros mais altos (421 até 540 cm de altura), o que não foi observado em P. pollicaris. Os primeiros indivíduos de ambas as espécies foram avistados a partir das 18:02 até as 04:29 horas da manhã do dia seguinte e as duas espécies de lagartos não apresentaram diferenças significativas quanto ao período de atividade. As presas mais consumidas por P. periosus foram Coleoptera, Formicidae e Hemiptera, já para P. pollicaris os itens mais consumidos foram Coleoptera, Isoptera e Aranae. P. pollicaris apresentou ambas as larguras de nicho trófico (número e volume) bem superiores quando comparado com P. periosus. No entanto, as duas espécies apresentaram alta sobreposição em suas dietas. Não foi constatado diferenças quanto ao volume das presas consumidas. As duas espécies diferiram em relação ao tamanho do corpo e massa corpórea. Mas, indivíduos adultos de P. periosus e P. pollicaris não apresentaram diferenças intraespecíficas do tamanho do corpo e massa corpórea em relação ao sexo. P. periosus apresentou uma taxa de recaptura de 30%, enquanto que seu congênere apresentou uma taxa média de 19%. Apenas a espécie P. pollicaris apresentou variação na taxa de recaptura ao longo do tempo, que se mostrou negativamente correlacionada com a precipitação média de cada mês. A estimativa de sobrevivência em ambas as espécies foi constante ao longo do tempo. P. periosus e P. pollicaris apresentaram estimativas de sobrevivência de 66% e 94%, respectivamente. P. pollicaris apresentou densidade populacional maior que P. periosus durante todo o estudo. A maior densidade observada para P. periosus foi no mês de julho de 2012, já para P. pollicaris foi no mês de novembro do mesmo ano. Ambas as espécies apresentaram variações em suas abundâncias populacionais dependendo da sub-área amostrada. Enquanto P. pollicaris foi mais abundante na sub-área I, P. periosus mostrou-se mais abundante que seu congênere na sub-área III. Variações nas abundâncias populacionais entre essas duas espécies, provavelmente seja um fator que possa vir a contribuir para coexistência das duas espécies na área de estudo.
BUSTOS, ZAGAL MARIA GUADALUPE 381737, and ZAGAL MARIA GUADALUPE BUSTOS. "Variación en el patrón de coloración y características reproductoras de lagartijas sceloporus h. horridus (sauria: phrynosomatidae) del estado de Morelos, México." Tesis de doctorado, Universidad Autónoma del Estado de México, 2013. http://hdl.handle.net/20.500.11799/64384.
Full textJordán, Arizmendi Juan Carlos. "Repartición de recursos en dos especies simpátridas del género Ameiva (Sauria: Teiidae) en el Parque Nacional Cerros de Amotape, Tumbes, Perú." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2010. https://hdl.handle.net/20.500.12672/16466.
Full textGutiérrez, de la Cruz Gerardo Luis. "Situación taxonómica de Dicrodon guttulatum Duméril & Bibron, 1839 y Dicrodon holmbergi Schmidt, 1957 (Sauria: Teiidae): estudio morfológico, morfométrico y hemipeniano." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2018. https://hdl.handle.net/20.500.12672/10023.
Full textTesis
Civitillo, Sauro [Verfasser], Linda [Akademischer Betreuer] Juang, Maja [Akademischer Betreuer] Schachner, and Axinja [Gutachter] Hachfeld. "Teachers’ cultural diversity beliefs and culturally responsive practices / Sauro Civitillo ; Gutachter: Axinja Hachfeld ; Linda Juang, Maja Schachner." Potsdam : Universität Potsdam, 2019. http://d-nb.info/1219514802/34.
Full textCivitillo, Sauro [Verfasser], Linda P. [Akademischer Betreuer] Juang, Maja [Akademischer Betreuer] Schachner, and Axinja [Gutachter] Hachfeld. "Teachers’ cultural diversity beliefs and culturally responsive practices / Sauro Civitillo ; Gutachter: Axinja Hachfeld ; Linda Juang, Maja Schachner." Potsdam : Universität Potsdam, 2019. http://d-nb.info/1219514802/34.
Full textZanotelli, Juliana Conte. "Estudo filogeográfico de Cnemidophorus vacariensis FELTRIM & LEMA, 2000 baseado no DNA mitocondrial e diferenciação morfológica de suas populações (SQUAMATA: SAURIA: TEIIDAE)." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2010. http://hdl.handle.net/10183/25161.
Full textContzen, Yvonne Nicole. "Entwicklung und Anwendung immunchemischer Verfahren zum Nachweis von saurem Gliafaserprotein und von basischem Myelinprotein als Markersubstanzen für Gewebe des zentralen Nervensystems in Lebensmitteln." Giessen VVB Laufersweiler, 2009. http://d-nb.info/1000216861/04.
Full textContzen, Yvonne Nicole. "Entwicklung und Anwendung immunchemischer Verfahren zum Nachweis von saurem Gliafaserprotein und von basischem Myelinprotein als Markersubstanzen für Gewebe des zentralen Nervensystems in Lebensmitteln." Giessen VVB Laufersweiler, 2010. http://geb.uni-giessen.de/geb/volltexte/2010/7413/index.html.
Full textRua, Rojas Teobaldo. "El enfoque de la interculturalidad en la formación de valores de niñas y niños de la I.E. N° 38146/MX-P Huallhua Chica del distrito de Saurama." Master's thesis, Universidad Nacional Mayor de San Marcos, 2015. https://hdl.handle.net/20.500.12672/9273.
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Analiza describe y explica la formación de valores de niñas y niños de la I.E. N° 38146/Mx-P Huallhua Chica del distrito de Saurama a través de un enfoque intercultural. La investigación fue planteada desde un método con enfoque cualitativo con un estudio tipo Grounded Theory (Teoría fundamentada). La población está compuesta por 04 docentes de la I.E. N° 38146/Mx-P Huallhua Chica y 15 alumnos de tercero y cuarto grado. Como instrumento de recolección de datos se usó tres encuestas, una aplicada a los docentes y dos a los alumnos. La que se aplicó a los alumnos brinda información sobre la escala de valores y la segunda encuesta tiene como fin conocer la escala de valores universales, locales y de contexto.
Tesis
Zamora, Alvarado Juan. "Uso del quechua y rendimiento académico de los niños y niñas del III ciclo de la I.E. Nº 38678/Mx –P DE Huaracascca - Saurama - Vilcas Huamán - Ayacucho 2014." Master's thesis, Universidad Nacional Mayor de San Marcos, 2015. https://hdl.handle.net/20.500.12672/9278.
Full textPublicación a texto completo no autorizada por el autor
Trata sobre el uso adecuado de la lengua quechua y su relación con el rendimiento académico en los alumnos de 1° y 2° de primaria de la institución educativa Nº 38678/Mx –P. El propósito de esta investigación es diagnosticar la relación del uso adecuado del quechua en el rendimiento académico de los estudiantes y aplicar el uso del quechua incorporando la interculturalidad, el bilingüismo y metodología activa en el proceso de aprendizaje de los niños y niñas del III ciclo. Se trata de un estudio de tipo descriptivo correlacional y de temporalidad transversal, para lo cual se realizaron entrevistas y se aplicó una ficha de observación. El objeto de estudio está constituido por los niños(as) de la I.E. Nº 38678/Mx –P. la muestra constó de 11 niños de 1° y 2° de primaria y 1 profesor. El trabajo de investigación llegó a las siguientes conclusiones: el uso adecuado de la lengua quechua tiene relación positiva con el rendimiento académico de los niños/as de 1° y 2° de primaria respecto a este punto los profesores realizan juegos didácticos, clases que se relacionan a su entorno y lecturas tanto en quechua como en castellano. Se recomienda desarrollar talleres de capacitación donde se involucren tantos padres de familia, docentes y estudiantes respecto a la gramática elemental del quechua con la finalidad de mejorar la aplicación del idioma materno y el fortalecimiento de los valores culturales.
Tesis
Itzel, Constanze [Verfasser], and Lieselotte E. [Akademischer Betreuer] Saurma. "Der Stein trügt : die Imitation von Skulpturen in der niederländischen Tafelmalerei im Kontext bildtheoretischer Auseinandersetzungen des frühen 15. Jahrhunderts / Constanze Itzel ; Betreuer: Lieselotte E. Saurma." Heidelberg : arthistoricum.net, 2003. http://d-nb.info/1187935549/34.
Full textГалицын, Д. И. "Популяционная специфика прыткой ящерицы Lacerta agilis L., 1758 (Sauria: Lacertidae) в северной части ареала на Урале : диссертация на соискание ученой степени кандидата биологических наук : 03.02.08." Thesis, б. и, 2020. http://hdl.handle.net/10995/95080.
Full textGuzman, Caldas Alfredo Leonardo. "Repartición de recursos entre Stenocercus puyango (Torres-Carvajal, 2005) y Microlophus occipitalis (Peters, 1871) (Sauria: Tropiduridae) en el Parque Nacional Cerros de Amotape, Tumbes, Perú." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2016. https://hdl.handle.net/20.500.12672/4973.
Full text--- Use of spatial, temporal and trophic niches and some aspects of thermal ecology and morphology between two species of Tropiduridae: Microlophus occipitalis and Stenocercus puyango in the transition zone of the pacific tropical and dry forest in Cerros de Amotape National Park (PNCA), Tumbes, Peru was studied. Microlophus occipitalis and S. puyango displayed an unimodal activity pattern with peak activity at 13:00, and an average body temperature for M. occipitalis and S. puyango of 34,83 and 32,17 ºC respectively. Significant relationships between body and air and soil temperatures were recorded. Most microhabitats used were the fallen logs for M. occipitalis and leaf litter for S. puyango. The diet of both tropidurids was composed of arthropods, mainly ants and insect larvae. Moreover, morphological differences in average sizes and weights were recorded between both species. The similarities found in both time of activity (temporal niche) and diet (food niche) are probably associated with their phylogenetic relationship and to own environmental features within the PNCA. Differences in the use of space and body temperature between both species would be associated with differences in the selection of microhabitats within the PNCA. Key words: Resource partitioning, Stenocercus puyango, Microlophus occipitalis, temporal, spatial and trophic niches, Cerros de Amotape National Park.
Tesis
Olivera, Jara Diego Alfonso. "Ecología termal de Microlophus tigris (Tschudi, 1845) (Sauria: Tropiduridae) "Lagartija de las lomas" en dos altitudes en la región Lima (Perú) durante la época seca." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2015. https://hdl.handle.net/20.500.12672/4217.
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Rezende-Pinto, Fabíola Munari. "Ciclo reprodutivo e dimorfismo sexual em Cnemidophorus vacariensis Feltrim & Lema, 2000 (Sauria, Teiidae) nos campos do Planalto das Araucárias do Rio Grande do Sul, Brasil." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2007. http://hdl.handle.net/10183/10947.
Full textThe reproductive cycle and sexual dimorphism of the lizard Cnemidophorus vacariensis were studied on the basis of data gathered between August 2004 and August 2006 in Vacaria, Rio Grande do Sul, Brazil. Reproduction was seasonal: spermatozoa were found between September and December, vitellogenic follicles and/or eggs between October and December, and hatchling recruitment occurred in January and February. There were observations indicating two clutches in the same reproductive season. Clutch size varied between 2 and 6 (x = 4.10 ± 0.89; n = 21). Other reproductive characteristics were also analyzed as well as the relation between reproduction and environmental factors. Snout-vent length (SVL) of sexually mature males varied between 48.84 and 72.86 mm (x = 63.26 ± 5.99 mm; n = 76) and, for females, between 57.36 and 81.8 mm (x = 70.0 ± 5.85 mm; n = 73). Among adult males, in 88.1% (n = 37) the scales on the first and second ventral longitudinal rows were yellow in color, whereas in juveniles and adult females these scales were of the same color as the belly, namely white. Other morphological characteristics were also compared between sexes. Some of the observed reproductive traits are typically found in the genus in temperate environments. However, the greater SVL of females in relation to that of males is commonly found neither in other species of the genus nor in other species of the family Teiidae. Cnemidophorus vacariensis is apparently endemic to highland plateaus in southern Brazil and has been classified as vulnerable on several lists of threatened fauna in this country. Some suggestions for conservation measures are presented, due to the observed degradation of this species' environment.
Галицын, Д. И. "Популяционная специфика прыткой ящерицы Lacerta agilis L., 1758 (Sauria: Lacertidae) в северной части ареала на Урале : автореферат диссертации на соискание ученой степени кандидата биологических наук : 03.02.08." Thesis, б. и, 2020. http://hdl.handle.net/10995/95079.
Full textContzen, Yvonne Nicole [Verfasser]. "Entwicklung und Anwendung immunchemischer Verfahren zum Nachweis von saurem Gliafaserprotein und von basischem Myelinprotein als Markersubstanzen für Gewebe des zentralen Nervensystems in Lebensmitteln / eingereicht von Yvonne Nicole Contzen." Giessen : VVB Laufersweiler, 2010. http://d-nb.info/1001874153/34.
Full textDauphin-Villemant, Chantal. "Etude du fonctionnement de l'interrenale (corticosurrenale) chez la femelle du lezard vivipare jacquin : evolution au cours du cycle annuel d'activite et de reproduction." Paris 6, 1987. http://www.theses.fr/1987PA066329.
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