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1
Ulldemolins, Subirats Amanda. "Grau d’integració del tortosí en l’estàndard planificat i difós pels mitjans de comunicació i pel sistema d’ensenyament." Doctoral thesis, Universitat Autònoma de Barcelona, 2018. http://hdl.handle.net/10803/663843.
Повний текст джерелаАнотація:
Aquesta tesi té per objectiu analitzar, des del punt de vista de la planificació lingüística i amb una perspectiva sincrònica, el model de llengua estàndard oral vehiculat pel sistema d’ensenyament i pels mèdia públics de televisió de l’àrea tortosina. Així, aquesta investigació es divideix en dos eixos: el de l’àmbit educatiu i el dels mèdia.
En primer lloc, pel que fa a l’ensenyament, ens centrem en l’estudi de l’estàndard oral difós pels mestres del primer curs de primària de les escoles de 9 poblacions catalanes i d’11 valencianes, situades a banda i banda de la frontera administrativa. En total, analitzem 29 tutors d’aquest nivell educatiu i contrastem les seues dades amb les dels alumnes, això és, prenem com a filtre de l’objecte de recerca els usos lingüístics adquirits pels 416 alumnes d’aquests ensenyants.
En segon lloc, amb relació als mèdia, examinem el model lingüístic emprat pels tres periodistes tortosins que apareixen en les dos edicions del Telenotícies de TV3: Glòria Boquizo, Fàtima Llambrich i Víctor Sorribes. El corpus de treball està format per 101 peces televisives d’informació.
Quant a l’estructura, la tesi té quatre parts. A la part i n’exposem el marc teòric: les nocions d’ecologia lingüística, de llengua estàndard i d’estandardització. Dediquem la part ii a la contextualització de diversos aspectes de la investigació. En primer lloc, definim l’àrea objecte d’estudi, circumscrita a la Mancomunitat de la Taula del Sénia, mitjançant dades de caràcter demogràfic i econòmic; en segon lloc, descrivim geolectalment el tortosí de les comarques examinades: el Montsià, el Baix Maestrat i els Ports. En tercer lloc, centrant-nos en aquesta àrea central del domini lingüístic, resseguim el procés d’estandardització en aquest territori a partir del model de llengua vehiculat. Finalment, mostrem una panoràmica de l’estàndard oral català difós a TV3 durant els darrers 30 anys.
Bastim la part iii amb l’anàlisi de les dades recollides distribuïdes, d’una banda, tenint en compte el nivell de llenguatge —fonètica, morfologia i lèxic— i, de l’altra, segons l’àmbit d’investigació: ensenyament i mèdia. En primer lloc, quant a l’àmbit educatiu, les dades revelen la manca de discerniment dels docents entre les variants tortosines codificades per l’estàndard i les col·loquials i també la difusió de formes estàndards del català central en detriment de les tortosines. En aquest sentit, l’arraconament de les solucions estàndards tortosines es concentra, sobretot, en el lèxic i, en menor mesura, en la morfologia nominal. Tanmateix, el grau d’integració del tortosí en el model de llengua dels docents valencians és superior al dels catalans, atès que l’estàndard imperant al País Valencià és l’occidental. En segon lloc, de l’anàlisi lingüística dels mèdia se’n desprèn l’heterogeneïtat de models entre els locutors, tot i que la tendència general és l’abdicació de les variants verbals estàndards tortosines. Per contra, es demostra que la fonètica és el nivell lingüístic més refractari a l’estàndard del català central, per bé que hem documentat realitzacions al·lòctones com la reducció vocàlica.
En darrer terme, en la part iv, per un cantó, presentem les conclusions de la tesi, en què es posa de manifest la vehiculació parcial de l’estàndard planificat tortosí. Més concretament, es revela que el grau d’integració del tortosí en l’estàndard difós és elevat en la fonètica, mitjà en la morfologia nominal i irregular en la morfologia verbal i en el lèxic —nivells en què convé distingir entre els resultats a l’ensenyament i als mèdia. Per l’altre cantó, proposem un model de llengua d’estàndard oral per a la zona tortosina per a cada sector analitzat a partir de les dades recollides, les quals permeten traçar futures línies de recerca sobre l’estandardització d’àrees administrativament frontereres.The present dissertation aims to analyze, from the language planning point of view and with a synchronic prospective, the spoken standard spread by the Tortosin educational system and public television. Research is divided into two main areas: the education sector and the mass media. Firstly, regarding the education sector, this dissertation focuses on the spoken standard spread by first grade elementary school teachers in nine Catalan and eleven Valencian towns. We study a total of 29 first grade elementary school instructors and we contrast their data with that of their students; in other words, we use data collected from 416 children to filter the linguistic model they learn from their teachers. Secondly, concerning the media, we examine the spoken standard spread by three Tortosin journalists that appear in two separate editions of the newscast Telenotícies, broadcasted by TV3: Glòria Boquizo, Fàtima Llambrich and Víctor Sorribes. The research corpus is comprised of 101 informative pieces. This dissertation has been divided into four chapters. In Chapter i, we explain the theoretical framework of this thesis: the concept of linguistic ecology, standard variety and standardization. In Chapter ii, we contextualize several details of the research. First, we delimit the area of study within la Mancomunitat de la Taula del Sénia with demographic and economic information. Secondly, we describe the Tortosin geolect that is spoken in the Montsià, Baix Maestrat and Ports regions. Also, we expose the process of standardization inside the area of focus. Finally, we show a panoramic view of the Catalan spoken standard spread by TV3 for the last 30 years. In Chapter iii, we analyze the collected data in two different ways: according to the language system (phonetics, morphology and vocabulary) and regarding the sector examined (education and media). From the first perspective, data from the educational system reveals the lack of discernment between the Tortosin codified standard and colloquial forms. Additionally, it reveals the spread of Eastern Catalan standard variants at the expense of Tortosin variants. Accordingly, the disappearance of the Tortosin standard focuses on vocabulary, and to a lesser extent, nominal morphology. However, the degree of Tortosin features in the standard spread by Valencian teachers is higher than that spread by Catalan teachers, due to the dominant standard in País Valencià being the Western variety. From the second perspective, linguistic analysis of the media shows the heterogeneity of models among the studied journalists. Nonetheless, the general tendency is the disappearance of the Tortosin standard verbal forms. In contrast, this research shows that phonetics most strongly resists the influence of Eastern Catalan standard features. Finally, in Chapter iv we present the conclusions of this dissertation, such as the partial vehiculation of the Tortosin codified standard. Particularly, this study reveals that the grade of integration of Tortosin into the spread standard is high in phonetics, medium in nominal morphology and irregular in verbal morphology and vocabulary (we must distinguish between these two latter sections). Moreover, we propose a Tortosin spoken standard model for the Tortosin speaking area to each studied sector and future lines of research regarding standardization in administrative border areas.
2
Edwards, Taylor. "Desert tortoise conservation genetics." Thesis, The University of Arizona, 2003. http://hdl.handle.net/10150/291566.
Повний текст джерелаАнотація:
Managing for the long-term survival of a species requires an understanding of its population genetics. The desert tortoise, Gopherus agassizii, inhabits the Mojave and Sonoran deserts of North America. Desert tortoises face many threats to their continued survival, including habitat loss and fragmentation. I used mitochondrial and microsatellite DNA markers to examine genetic structure within and among populations of desert tortoises. I found that both the Mojave and Sonoran populations of desert tortoise exhibit similar patterns of population genetic structure. Gene flow among localities within each region is part of the evolutionary history of the desert tortoise and dispersal events probably play an important role in the long-term maintenance of populations. Movement barriers caused by anthropogenic landscape changes have the potential to effect desert tortoise population viability. Understanding the historical connectivity between and within the Mojave and Sonoran populations of desert tortoises will help facilitate the conservation of this species.
3
Entz, Jacqueline Rostal David. "Effects of habitat quality on reproduction in two Georgia populations of Gopherus polyphemus." Diss., Statesboro, Ga.: Georgia Southern University, 2009. http://www.georgiasouthern.edu/etd/archive/fall2009/jacqueline_w_entz/entz_jacqueline_w_200908_MS.pdf.
Повний текст джерелаАнотація:
"A thesis submitted to the Graduate Faculty of Georgia Southern University in partial fulfillment of the requirements for the degree Master of Science." Title from PDF of title page (Georgia Southern University, viewed on May 1, 2010). David Rostal, major professor; Lance McBrayer, Ann Pratt, John Harrison, committee members. Electronic version approved: December 2009. Includes bibliographical references (p. 37-40).
4
Mitchell, Maggie Jo. "Home range, reproduction, and habitat characteristics of the female gopher tortoise (Gopherus polyphemus) in southeast Georgia." Click here to access thesis, 2005. http://www.georgiasouthern.edu/etd/archive/fall2005/maggie%5Fj%5Fmitchell/Mitchell%5FMaggie%5FJ%5F200508%5FMS.pdf.
Повний текст джерелаАнотація:
Thesis (M.S.)--Georgia Southern University, 2006."A dissertation submitted to the Graduate Faculty of Georgia Southern University in partial fulfillment of the requirements for the degree Master of Science" ETD. Includes bibliographical references (p. 78-81) and appendices.
5
Gundlach, David L. "Analysis of patch shape and area in desert tortoise habitat." abstract and full text PDF (free order & download UNR users only), 2008. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1456426.
Повний текст джерела
6
Geiger, Gunfried. "Paläoklima-Modellierungen für das Obermiozän Reaktionen des general circulation model ECHAM 3 auf systematische Veränderungen von Orographie und SST /." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=973284846.
Повний текст джерела
7
Dibenedetto, Joseph Nicholas. "Paleoclimatological implications of fossil tortoise bones." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2008. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.
Повний текст джерела
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Björnsdotter, Maja. "Tortoise : Hållbar design för Kinas möbelmarknad." Thesis, Linköpings universitet, Malmstens Linköpings universitet, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-142384.
Повний текст джерелаАнотація:
I Kina ökar konsumtionen i takt med välfärden och det finns ett behov av en mer hållbar attityd i landet, både för konsumenter och producenter. Det blir mer och mer viktigt för vår globala hälsa och miljö med hållbar design. I den här rapporten försöker jag förtydliga vad hållbarhet innebär genom att förhålla mig och mitt examensarbete till den kinesiska marknaden. Hur skulle en hållbar möbeldesign tänkas se ut för en kinesisk marknad? I mitt examensarbete fokuserar jag på våningssängen. Det är en möbel som är lite bortglömd formmässigt men som trots allt verkar sälja väldigt bra i Kina. Jag hoppas kunna hitta en mer stilren lösning som också är mer köns och åldersneutral än de våningssängar som finns idag. Mitt arbete börjar med att försöka skapa en generell förståelse för landet som helhet och att leta efter likheter och olikheter mellan våra kulturer som kan ha betydelse för min frågeställning. I min designprocess utgår jag från olika designstrategier som fungerar som en checklista för utvecklingen av min möbel. I en funktionsanal listar jag sedan önskade funktioner som alla har egenskaper att påverka en bättre global miljö eller mänskligt välbefinnande. Mitt slutgiltiga förslag, Tortoise, är en våningssäng ämnad för unga familjer i Kina. Den är i första hand tänkt att användas i barnkammaren för en familj med 1 till 2 barn eller för en familj som ofta får besök av mor och farföräldrar, men kan lika väl stå i ett kombinerat gästrum/kontor. Sängen kan vara en stabil och rolig klätterställning på dagen, en mysig soffa för en eller flera på kvällen och en mysig och fantastiskt skön säng på natten. Sängen ser kanske inte ut som en sköldpadda, Tortoise, men den har egenskaper som stämmer väl överens med sköldpaddans symbolik, som värnar om trygghet, stabilitet och ett lång liv. Genom mitt examensarbete med sängen i fokus har jag lagt grunden för en framtida verksamhet på en arena utanför Sverige, i en annan kultur med andra förutsättningar både beträffande kundunderlag, produktionsvillkor och attityder till hållbarhetsfrågor. Detta har också varit mitt syfte med uppgiften på längre sikt.
9
Kingdon, Lorraine B. "The Search for the Desert Tortoise." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 1992. http://hdl.handle.net/10150/622392.
Повний текст джерела
10
Greenfield, Richard. "'Once a tortoise always a tortoise' : teachers' awareness of, and responses to, age differences in conventionally grouped classrooms." Thesis, University College London (University of London), 2009. http://discovery.ucl.ac.uk/10019883/.
Повний текст джерела
11
Bailey-Jourdain, Catherine. "Male age effects, cytoplasmic incompatibility and the localization of Wolbachia in Chelymorpha alternans Boh (Chrysomelidae, Cassidinae)." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=100760.
Повний текст джерелаАнотація:
Wolbachia are bacteria that infect and induce reproductive alterations in a large number of arthropods. The present study was undertaken to improve our understanding of the effects that Wolbachia have on the reproductive biology of the leaf beetle Chelymorpha alternans Boh, in Panama. Two strains of Wolbachia occur in C. alternans, both of which induce some degree of cytoplasmic incompatibility (CI), a reproductive problem occurring when individuals bearing different infection status are mated together resulting in lowered levels of egg fertility. I attempted to localize where Wolbachia occurs in highest density in male reproductive tissues and to see if variation in Wolbachia density was associated with levels of CI in crossing experiments involving males (1) differing in age, (2) carrying different strains and (3) belonging to different populations previously known to vary in their levels of CI. Wolbachia were found to occur only in the somatic cells surrounding the testis, rather than in the germ cells, and yet were capable of inducing strong CI. Male age, infection status and provenance all were factors affecting the level of CI induced.
12
Beauman, Richard L. Mendonça Mary T. "The effects of burrow collapse on the gopher tortoise (Gopherus polyphemus)." Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/SPRING/Biological_Sciences/Thesis/Beauman_Richard_19.pdf.
Повний текст джерела
13
Hagerty, Bridgette E. "Ecological genetics of the Mojave desert tortoise." abstract and full text PDF (UNR users only), 2008. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3339179.
Повний текст джерела
14
Massip, i. Bonet Àngels. "Lèxic tortosí: història i present, El." Doctoral thesis, Universitat de Barcelona, 1991. http://hdl.handle.net/10803/1686.
Повний текст джерелаАнотація:
Estudiem les característiques lexicals del dialecte de la llengua catalana anomenat tortosí, que comprèn les comarques del Baix Ebre, el Montsià, la Terra Alta, el Matarranya, la Ribera d"Ebre, el Maestrat i els Ports de Morella, i que es pot caracteritzar com un parlar de transició entre el català nord-occidentel i el valencià.A més de fer un inventari -unes 4.000 entrades- dels mots característics d'aquest parlar (mots exclusius del dialecte o que en el dialecte presenten una particularitat formal o semàntica), n'estudiem més específicament un miler, d'acord amb la següent estructura: Mot. Transcripció fonètica -sempre que ho creguem necessari-. Categoria gramatical. Significat. Àrea d'ús del mot (que ens permet de veure les concordances entre el parlar estudiat -del qual tenim informeció directa, de camp- amb els altres dialectes de la llengua -dels quals tenim información bibliogràfica: fonts lexicogràfiques, monografies dialectals-. Precisem amb (L), (F) o (S) si l'àrea assignada es refereix a l'extensió del lexema o de la variant formal o de la variant semàntica. Documentació antiga. Diccionaris (constatem 1"aparició o no del mot en els vocabularis específics de la zona o en els diccionaris valencians o generals). Vitalitat d'ús i documentació actual en textos escrits i en entrevistes orals. Etimologia.
El model d'estructura de les entrades que proposem creiem que podria servir de pauta per a futurs estudis monogràfics de cara a poder aprofitar al màxim la aportació que aquestes monografies suposen.
Per a la documentació dels mots ens hem basat en obres publicades i també en material inèdit que aportem, en forma d'edició critica, en els volums segon (documents escrits -textos que a més de l'interès lingüístic, tenen interès també per als historiadors orals, per als antropòlegs o per als etnòlegs-) i tercer (textos orals) d'aquesta tesi.
Dediquem també un capítol a analitzar en quina mesura l'ensenyament del català a l'escola tendeix a uniformar el lèxic en la zona objecte d'estudi cap al lèxic considerat estàndard. I un altre, a detectar les actituds interdialectals entre els parlants tortosins i els barcelonins.
Es tracta, doncs, d'un treball de dialectologia on emprem els mètodes tradicionals combinats amb els de la sociolingüística i els de l'antropologia.
L'anàlisi comparativa del vocabulari bàsic tortosí, valencià i nord-occidental respecte d'un inventari de mots bàsics (1.500) del català central, demostra la coincidència major amb el lèxic valencià que no pas amb el nord-occidental -tot i que en la classificació dialectal vigent el tortosí es considera un subdialecte d"aquest darrer-. Constatem també que -com era d"esperar- només un 11% del vocabulari bàsic tortosí és diferent del vocabulari bàsic general de l'inventari susdit.
Els criteris de selecció de mots que havien de constar en l'inventari ha estat el següent:
1) Criteri de propietat lèxica, pel qual s'inclouen mots que, essent netament catalans, es reserven a un ús literari o restringit (abellir, atansar, eixir, bla(n)), mentre que en el dialecte estudiat són d'ús comú.
2) Criteri de determinació de l'objecte: paraules del català general que en tortosí corresponen a objectes i significats diferents (llevar, moll)
3) Criteri d"especificitat semàntica. També s'inclouen mots que tenen una accepció molt precisa i, en aquests casos, només ens ocupem d'aquesta accepció i no de la més general.
4) Criteri d'exclusió formal: detectem els casos en què el tortosí empra una de les formes sinònimes esteses per tot el domini i exclou completamente l'altra. També aquest criteri ens serveix per incloure o no els castellanismes: si són l'únic mot emprat, l'incloem, si hi ha altres mots usuals, no.
5) Criteri de diversitat geogràfica en el sentit propi. S'inclouen paraules noves des de tots els punts de vista: (semer, enrònia, guaixar),
Hem pogut constatar la gran riquesa lexical del dialecte tortosí, que, com la major part dels dialectes catalans està en perill de pèrdua perquè els parlants tendeixen a la simplificació i a la substitució de mots genuïns per préstec de l'espanyol, o, en el millor dels casos, per l'equivalent estàndard.
Un inventari d'aquesta mena -on intentem de donar una forma escrita apta per al mot dialectal- creiem que, en l'etapa de normalització en què es troba el català, pot ser útil perquè molts mots són recuperables, sobretot si els escriptors estan segurs que és legítim d'emprar-los.
We consider the lexical characteristics of the Catalan dialect known as "tortosí" and which can be described as a transitional dialect between Northwest Catalan and Valencian.
In addition to presenting en inventory of approximately 4,000 terms characteristic of this speech area (words exclusive to the dialect or which present a formal or semantic peculiarity in the dialect), the thesis studies 1,000 terms in depth, according to the following structure, which is proposed as B model for lexical entries: "Word", "Phonetic transcription" (when necessary), "Grammatical category", "Meaning", "Geographic area" where used (which allows us to see similarities between the dialect under study, for which we have data from field work, and other Catalan dialects, for which we have published references such as lexicographic sources or dialect monographs. We use (L)/(F)/(S) to see if the assigned area refers to the extension of the lexeme or to the formal or semantic variant. "Old documents", "Dictionaries": we record the appearance or absence of the word lists specific to the area or in dictionaries of Valencian or of Catalan in general, "Degree of use" and current frequency in documents and oral interviews. "Etymology"
To document words, we have based ourselves on published works as well as on unpublished materials, which we present with annotations in the second (written documents) and third (transcription of oral passages) volumes of this dissertation.
We also dedicate a chapter to analyzing the way the teaching of Catalan in schools is tending to homogenize the lexicon in this area end make it more similar to that of the standard language.
Another chapter discusses the attitudes between speakers of the Tortosa dialect and speakers from Barcelona.
In sum this dissertation presents dialect work in a traditional framework combined with elements of sociolinguistic and anthropological methodology.
Comparative analysis of the basic vocabulary of "Tortosí", Valencian, and Northwestern Catalan with respect to the inventory of basic vocabulary (1,500 words) of Central Catalan indicates a higher degree of similarity with Valencian, as opposed to Northwestern Catalan, although the traditional dialect divisions classify "Tortosí" as a subdialect of Northwestern Catalan and not Valencian.
We record the tremendous lexical variety of this dialect which, as is the case for most Catalan dialects is in danger of disappearing because speakers autoctonous words with loans from Spanish, or from the standard dialect.
15
Stott, Philip. "Terrestrial movements of the freshwater tortoise Chelodina longicollis." Title page, contents and summary only, 1988. http://web4.library.adelaide.edu.au/theses/09SM/09sms888.pdf.
Повний текст джерела
16
Creese, David E. "The origin of the Greek tortoise-shell lyre." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq24822.pdf.
Повний текст джерела
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Creese, David Evan. "The origin of the Greek tortoise-shell lyre." Ottawa : National Library of Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq24822.pdf.
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18
McLuckie, Ann Marie 1965. "Genetics, morphology, and ecology of the desert tortoise (Gopherus agassizii) in the Black Mountains, Mohave County, Arizona." Thesis, The University of Arizona, 1995. http://hdl.handle.net/10150/278528.
Повний текст джерелаАнотація:
Desert tortoises (Gopherus agassizii) occurring east and south of the Colorado River form the "Sonoran population," a regulatory designation of the U.S. Fish and Wildlife Service, whereas tortoises west and north of the river constitute the "Mojave population." This distinction is based on significant genetic, morphometric and ecological differences. However, mitochondrial DNA, morphometric, and ecological data from the eastern bajada of the Black Mountains (about 40 km east of the Colorado River) identify the evolutionary affinities of those tortoises as Mojavean: ten of eleven Black Mountain tortoises possessed the Mojave genotype, twenty-four of thirty-seven tortoises predominantly expressed the Mojave phenotype, and all tortoises were similar to Mojave populations in macrohabitat selection. Some ecological and behavioral attributes such as home range size and hibernaculum selection did not differ among Mojave, Sonoran, and Black Mountain tortoises. Several hypotheses on how the Mojave trait became established in the Black Mountains are discussed.
19
Micheels, Arne. "Late miocene climate modelling with ECHAM4/ML the effects of the palaeovegetation on the Tortonian climate /." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=969600089.
Повний текст джерела
20
Eliker, Michelle Lee. "The use of spatial reference cues and primary cue strategies for maze running by the desert tortoise, Gopherus Agassizii." CSUSB ScholarWorks, 1997. https://scholarworks.lib.csusb.edu/etd-project/1438.
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21
Hentges, Thomas William. "Are gopher tortosies (Gopherus polyphemus Daudin) comapatible with cows?" Scholar Commons, 2014. https://scholarcommons.usf.edu/etd/5238.
Повний текст джерелаАнотація:
Many Gopher Tortoise populations are in steep decline throughout Florida, and various measures have been attempted to curb the trend. One such measure is to relocate tortoises to protected recipient sites on private lands. The majority of private lands in Florida are used for cattle, however, production and the effect of cattle production on tortoises is not known. Here, I tested six parameters of tortoise behavior by monitoring 1403 gopher tortoises released at the Barthle Brothers Ranch, Pasco County Florida, between August 2009 and December 2012. The parameters tested were (1) burrow density, (2) burrow spacing, (3) burrow relocation, (4) body condition, (5) individual growth rate, and (6) recruitment (addition of young to the population). I used telemetry techniques to observe movement and burrow placement as it related to cattle activity and burrow impacts, and collected morphological data to determine changes in body condition and growth. I used burrow surveys and analyzed movement patterns to interpret the propensity for tortoises to place burrows where cattle may or may not congregate. Lastly, I investigated recruitment of juveniles into the population and followed the mortality of resident and relocated tortoises in all treatment plots. I found that burrow density, distance moved when relocating to new burrows, and avoidance of cattle were not distinguishably different within or between the plots. Burrow relocation, however, was more frequent outside the exclosures. The change in body condition did not differ between males and female or resident and relocated individuals. Females within the exclosure did not grow at a rate different than those outside the exclosure although translocated females grew faster than resident females. Densities of non-adult burrows inside the exclosures were not different then densities outside the exclosure. Eleven percent of tortoises relocated to the ranch died during the project. Although we have no evidence that cattle and tortoise cannot successfully coexist, a number of circumstances prevented rigorous testing of our hypotheses, predominately the failure of the silt fence used to enclose the treatment plots. Using a trespass-proof perimeter fence would allow a better assessment of the actual interaction between the cattle and tortoises and may shed new light on the lack of recruitment and the decline of juvenile tortoises relocated to the ranch. Without recruitment of individuals back into a population, or the persistent of reproducing adults within the population, any efforts to curb the downward trend in gopher tortoise numbers by relocating tortoises to actively grazed pasture is futile.
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Querol, Coll Enric. "Cultura literaria en Tortosa (siglos XVI y XVII)." Doctoral thesis, Universitat Autònoma de Barcelona, 2004. http://hdl.handle.net/10803/4870.
Повний текст джерелаАнотація:
Tomando como base una parte del corpus bibliográfico registrado en su tesina Tortosa, república literària (1475-1800), el autor se propone contextualizar las obras y los autores más relevantes del Renacimiento y el Barroco en la ciudad de Tortosa, presentada como paradigma de ciudad mediana de la Corona de Aragón, al margen de las capitales regnícolas.Los tres primeros capítulos están dedicados al contexto socio-cultural tortosino y en especial a las relaciones con Valencia, Zaragoza y Barcelona, epicentros que enmarcan su horizonte cultural. Querol plantea un modelo de transmisión cultural transversal y reticular, en el cual Barcelona incorpora los mejores intelectuales del país. Estos, gracias a la reducida extensión del Principado, continúan en contacto con sus lugares de origen, favoreciendo de esta manera el flujo de personas, ideas y géneros literarios. Por otro lado, se analizan detalladamente las infraestructuras locales que permiten la asimilación y el desarrollo de la cultura literaria: los Reales Colegios -universidad dominica-, el Estudio de Gramática, la lectoría de la Seo y la imprenta, tecnología básica para la diffusion de las obras, pero también para la promoción de la creatividad y para la forja de una tradición local identificable y un poso cultural propio.
Lejos de querer establecer un registro exhaustivo de la producción literaria tortosina, el resto de capítulos (4-10) se centran en los episodios más brillantes del período estudiado. Se recogen los autores y los géneros más interesantes y se contextualizan dentro del ámbito catalán y de la Corona de Aragón: la introducción de los métodos pedagógicos de Nebrija por parte de los gramáticos Jeroni Amiguet y Pere Seguí; la figura y obra de Cristòfol Despuig, analizada a la luz de una novedosa aportación documental biográfica; el grupo poético a caballo de los siglos XVI y XVII -Heredia, Desí, Suárez de Godoy, Vicent Garcia-; la historiografía local, desde sus antecedentes a la culminación en la Historia de la antigua Hibera (1626), de Francesc Martorell; los escritos políticos en la Guerra dels Segadors; el poeta Francisco de la Torre, el literato catalán mejor valorado y conocido a nivel español en el Barroco, y, por último, la producción dramática en la ciudad.
La tesis, que ha obtenido el «Cum Laude» por unanimidad, aporta desde una óptica interdisciplinaria y lingüísticamente no excluyente, una nueva pieza al cada vez más rico y complejo rompecabezas literario de la Catalunya moderna.
Taking as a basis part of the bibliographical corpus registered in his Tortosa, república literària (1475-1800), the author aims to put in context the most outstanding works and authors of the Renaissance and Baroque periods in Tortosa, presented as an example of the medium-sized town of the Corona de Aragón.
The three first chapters focus on the social and cultural context of Tortosa, specially on its relationships with Valencia, Zaragoza and Barcelona, cultural centers that frame the literary horizon of the town. Querol proposes a network cultural transmission model, in which Barcelona would incorporate the best minds of the territory. However, thanks to the relatively small size of Catalonia, these intellectuals and creators would continue keeping contact with their hometowns. In this way people, ideas and literary genres would spread easily all through the Catalan country. Secondly, the local, cultural and pedagogical infrastructures which allowed the assimilation and development of the literary culture are analyzed in detail: the Reals Col·legis ('Royal Colleges'), or Dominican University, the grammar school, the Lectoria of the Cathedral, and the printing press, basic tool not only for the distribution of the works, but also to foster the creativity and to set a local tradition.
Far from establishing an exhaustive register of the local production, the rest of the chapters (4-10) highlight the most conspicuous literary moments of the period. Authors and genres are gathered and put in context within the scope of Catalonia and the Corona de Aragón: the introduction of Nebrija's pedagogical methods by the grammarians Jeroni Amiguet and Pere Seguí, the man Cristòfol Despuig and its work, analyzed under the light shed by new biographical documentation; the poetical circle working in the late XVI and early XVII centuries -Heredia, Desí, Suárez de Godoy, Vicent Garcia-; the local historiography and the need for an «authorized» history; the political writings related to the Guerra dels Segadors, Francisco de la Torre, being the most well-known and valued Catalan poet in the Baroque Spain, and the local drama productions.
The thesis, which unanimously obtained the «Cum Laude» qualification, contributes, from an interdisciplinary and linguistically non-excluding view, with a new piece to the increasingly richer and more complex Catalan literary puzzle of the Modern period.
23
Sandmeier, Franziska C. "Immunology and disease in the Mojave Desert tortoise (Gopherus agassizii)." abstract and full text PDF (UNR users only), 2009. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3387823.
Повний текст джерела
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Macray, Matthew. "Tortoise mortalities along fences in the southeastern Karoo, South Africa." Master's thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/25345.
Повний текст джерелаАнотація:
Fencing, particularly electric fencing, is widely used across South Africa for livestock and game ranching practices. Recent studies found that leopard tortoises (Stigmochelys pardalis) are more prone to dying from electrocution along electric fences than any other taxa. However, no studies have quantified tortoise mortality along non-electric fences or assessed the impact of fence structure. With South Africa being home to more tortoise species than anywhere else in the world, thus is a conservation concern. This study quantifies tortoise mortalities associated with electrified and non-electrified fences and relates these rates to fence structure (mesh or strand). Open veld transects are used as controls to estimate background mortality. This study also reports the distribution and abundance of different fence types along 2200 km of roads in the southeastern Karoo, allowing the cumulative impacts of different fence types to be estimated. All fence types had significantly higher tortoise mortalities than open veld transects. Leopard tortoise mortalities were significantly higher along electric fences than non-electric fences. Despite forming only approximately 4% of all roadside fencing, electric fences account for 56% of leopard tortoise mortalities. This study validates concern for increased electric fence use in the future and the potential impacts on leopard tortoises. When considering the current abundance of fence types and their associated mortalities, the total number of leopard tortoise mortalities along electric and non-electric fences are similar. Angulate tortoise (Chersina angulata) mortalities were significantly higher along mesh fences than strand fences, but did not differ between electric and non-electric fences. Angulate tortoises appear to wedge themselves in mesh fences and are unable to escape. This study highlights the current threat of non-electric fencing on tortoises as no similar findings have been reported. These additional tortoise mortalities should be considered alongside other emerging threats when questioning the longevity of these tortoise populations, not only in the Karoo, but globally. The implementation and practicality of previously suggested mitigation strategies are discussed and alternative mitigation strategies are suggested. This study concludes that raising of the electric strands is impractical and the implementation of rock aprons are ineffective. Live tortoises displayed active behavior when temperature was above 20 °C, thus thermostatic switches for electric fences could potentially reduce tortoise mortalities without compromising fences function.
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Curtin, Amanda Jane Spotila James R. "Bone growth strategies and skeletochronological age estimates of desert tortoise (Gopherus agassizii) populations /." Philadelphia, Pa. : Drexel University, 2006. http://dspace.library.drexel.edu/handle/1860%20/838.
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Gaskell, Amy Dawn. "The role of gopher tortoise (Gopherus polyphemus) burrows in shaping herpetofaunal diversity in the sandhills of southeast Georgia." Click here to access thesis, 2007. http://www.georgiasouthern.edu/etd/archive/fall2007/amy_d_gaskell/gaskell_amy_d_200708_MS.pdf.
Повний текст джерелаАнотація:
Thesis (M.S.)--Georgia Southern University, 2007."A thesis submitted to the Graduate Faculty of Georgia Southern University in partial fulfillment of the requirements for the degree Master of Science." In Biology, under the direction of Lance D. McBrayer. ETD. Electronic version approved: December 2007. Includes bibliographical references (p. 42-46) and appendix.
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Catano, Christopher. "Species and habitat interactions of the gopher tortoise: A keystone species?" Master's thesis, University of Central Florida, 2012. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5153.
Повний текст джерелаАнотація:
Species-species and species-habitat interactions have been demonstrated to be important in influencing diversity across a variety of ecosystems. Despite generalities in the importance of these interactions, appropriate mechanisms to explain them are absent in many systems. In sandhill systems of the southeast U.S., gopher tortoises have been hypothesized to be a crucial species in the maintenance of diversity and function. However, the mechanisms and magnitude in which they influence their communities and habitats have rarely been empirically quantified. I examined how habitat structure influences tortoise abandonment of burrows and how tortoise densities influence non-volant vertebrate community diversity. Tortoise burrow abandonment is directly influenced by canopy closure, with each percent increase in canopy cover relating to a ~2% increase in the probability of burrow abandonment. In addition, tortoise burrow density was positively correlated with diversity and evenness, but not species richness. This influence was directly proportional to burrow density, supporting a dominance role for this species and rejecting the commonly asserted keystone species mechanism. I also quantified the influence of tortoises in influencing diversity relative to other environmental and habitat variables. Through this research, I have demonstrated that disturbance and habitat structure are important, but diversity responds most to density of burrows in the habitat. These findings demonstrate the intricate relationships interacting to maintaining diversity in sandhill systems. In particular, habitat change leading to declines of gopher tortoises may have drastic negative impacts on vertebrate species diversity.M.S.
Masters
Biology
Sciences
Biology
28
Setlalekgomo, Mpho Rinah. "Metabolic energy relations in the Eastern Cape Angulate Tortoise (Chersina Anguluta)." Thesis, Nelson Mandela Metropolitan University, 2010. http://hdl.handle.net/10948/1400.
Повний текст джерелаАнотація:
The daily oxygen consumption (VO2) pattern, the effects of varying ambient temperatures, season and mass on the resting oxygen consumption (RVO2) of Chersina angulata of the Eastern Cape were investigated. The RVO2 was measured using flow-through respirometry and specific resting oxygen consumption (sRVO2) calculated. To determine the daily pattern in the VO2 of C. angulata, the tortoises were acclimated in an environmentally controlled room (ECR) to an ambient temperature of 26 ± 1°C and a light regime of 14 hours of light and 10 hours of darkness (14L:10D) for at least a week prior to the RVO2 measurements. The RVO2 was measured at a constant temperature of 26 ± 1°C, and at three different light regimes, namely: 14L:10D, constant darkness (DD) and constant light (LL). There were no significant effects of mass or gender on the sRVO2 of the tortoises used. Rhythms in the sRVO2 were detected under all three light regimes. The amplitudes of the rhythm were largest at 14L:10D, followed by DD and smallest at LL regime. The persistence of the rhythmic pattern under constant conditions suggests the existence of an endogenous circadian rhythm in the sRVO2 for adult C. angulata. To test for the effect of ambient temperature on the sRVO2 of adult C. angulata, the tortoises were acclimated to 22 ± 1°C and a 14L:10D light regime prior to the RVO2 measurements. RVO2 was measured at eight experimental temperatures; 14°C, 18°C, 22°C, 26°C, 30°C, 35°C, 38°C and 40°C. The sRVO2 was not influenced by gender and increased with experimental temperatures, but this did not happen consistently over the whole range of temperatures tested. A plateau, possibly a thermal preferendum zone, was detected within the temperature range of 26 - 38°C. Determination of seasonal effect on the sRVO2 of adult C. angulata was accomplished by acclimating tortoises to standard summer and winter conditions. Seasonal effects were tested in the appropriate seasons. Winter experiments were conducted in winter and summer experiments conducted in summer. The RVO2 was measured at experimental temperature 14°C, 18°C and 22°C. In addition RVO2 of iv winter-acclimated tortoises was also measured at 10°C. The sRVO2 increased significantly with increasing temperature within the temperature range tested. No distinct pattern was observed in the seasonal acclimation of adult C. angulata. The metabolic rate-temperature curves of the summer and the winter-acclimated tortoises cross each other. Season and temperature had no significant effects on the mass-scaling exponent of the sRVO2. The exponent ranged from 0.48 to 0.73 within the temperature range of 22 - 38°C. Below and above this temperature range, the exponent ranged from 1.47 to 1.67. An inverse relationship was observed between sRVO2 and body mass over the temperature range of 22 - 38°C. At 14°C and 18°C, sRVO2 increased with body mass, while at 10°C and at 40°C the slope was 1.01.
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Costa, Jover Agustí. "Análisis del proceso de construcción-deconstrucción de la catedral de Tortosa." Doctoral thesis, Universitat Rovira i Virgili, 2015. http://hdl.handle.net/10803/351952.
Повний текст джерелаАнотація:
La Catedral de Santa Maria de Tortosa (1345-1757) és un dels edificis gòtics més importants de Catalunya. La seva construcció va suposar la substitució progressiva de la seu romànica preexistent, en un procés de construcció-deconstrucció en que tots dos edificis van coexistir fins a principis del segle XVIII. L'objectiu principal d'aquesta tesi és analitzar el procés de construcció de la catedral de Tortosa a través de tècniques actuals, les quals permetran ampliar el coneixement existent més enllà de la historiografia tradicional.
Així, s'estableix una metodologia que implicarà, en primer lloc, generar una nova base topogràfica utilitzant tècniques de captura massiva de dades. Complementàriament, també es realitza una campanya de prospecció geofísica del subsòl. En segon lloc, s'estableix una hipòtesi volumètrica de l'encaix entre els dos edificis al llarg de tot el procés, i podent identificar els matisos de l'execució i les fases de major complexitat. Finalment, s'analitzen les condicions d'equilibri de l'absis durant el procés de construcció, i identificant els moments constructius en els quals l'estabilitat de l'estructura estava compromesa i era necessari disposar d'algun sistema auxiliar per compensar les empentes de les voltes, garantint l'estabilitat.
Per tant, la investigació ha permès establir un nou marc de referència sobre el procés de construcció de la catedral gòtica de Tortosa. A més, el càlcul realitzat també permet entendre millor el comportament estructural de l'absis, establint així una referència per al seu manteniment i conservació. Finalment, la nova base topogràfica obtinguda també possibilitarà el control de deformacions, alhora que obre la porta a futures investigacions per aprofundir en altres aspectes sobre la catedral.La Catedral de Santa María de Tortosa (1345-1757) es uno de los edificios góticos más importantes de Cataluña. Su construcción supuso la substitución progresiva de la sede románica preexistente, en un proceso de construcción-deconstrucción en que ambos edificios coexistieron hasta principios del siglo XVIII. El objetivo principal de esta tesis es analizar el proceso de construcción de la catedral de Tortosa a través de técnicas actuales, las cuales permitirán ampliar el conocimiento existente más allá de la historiografía tradicional. Así, se establece una metodología que implicará, en primer lugar, generar una nueva base topográfica utilizando técnicas de captura masiva de datos. Complementariamente, también se realiza una campaña de prospección geofísica del subsuelo. En segundo lugar, se establece una hipótesis volumétrica del encaje entre los dos edificios a lo largo de todo el proceso, pudiendo identificar los matices de la ejecución y las fases de mayor complejidad. Finalmente, se analizan las condiciones de equilibrio del ábside durante el proceso de construcción, pudiendo identificar los momentos constructivos en los que la estabilidad de la estructura estaba comprometida y era necesario disponer de algún sistema auxiliar de contrarresto para compensar los empujes de las bóvedas, garantizando la estabilidad. Por tanto, la investigación ha permitido establecer un nuevo marco de referencia sobre el proceso de construcción de la catedral gótica de Tortosa. A demás, el cálculo realizado también permite entender mejor el comportamiento estructural del ábside, estableciendo así una referencia para su mantenimiento y conservación. Finalmente, la nueva base topográfica obtenida también posibilitará el control de deformaciones, a la vez que abre la puerta a futuras investigaciones para profundizar en otros aspectos sobre la catedral.
The Cathedral of Santa Maria of Tortosa (1345-1757) is one of the most important Gothic buildings in Catalonia. Its construction involved the progressive replacement of the existing Romanesque Cathedral in a process of construction-deconstruction. Both buildings coexisted until the early eighteenth century. The main objective of this thesis is to analyze the process of construction of the Cathedral of Tortosa by means of current techniques, which will expand the existing knowledge beyond traditional historiography. Thus, it is set a methodology that will involve, on first place, the performance of a new topographic survey using techniques of massive data capture. In addition, a campaign of geophysical prospecting of the subsoil is also performed. On second place, a volumetric hypothesis of the two buildings is established through the entire process of construction. It enables to identify the nuances of the process and the most complex phases. Finally, the equilibrium conditions of the apse are analyzed during the construction process of the building. It is possible to identify the phases when the stability of the structure was compromised and needed some temporary system of buttressing to compensate the thrusts of the vaults to guaranty the stability. Therefore, the research has established a new framework on the process of construction of the Gothic Cathedral of Tortosa. Moreover, the calculation also enhances the understanding of the structural behavior of the apse, establishing a reference for its maintenance. Finally, the new topographic base also enables the control of deformations, while opens the door to further research about other aspects of the Cathedral.
30
García, Rodríguez Alfonso. "L'evolució urbana de Tortosa (1939-1979): planejament i actuacions urbanístiques." Doctoral thesis, Universitat Rovira i Virgili, 2000. http://hdl.handle.net/10803/31931.
Повний текст джерелаАнотація:
La Tesi Doctoral L’evolució urbana de Tortosa (1939-1979): planejament i actuacions urbanístiques té com a finalitat estudiar el creixement urbà de la ciutat a través del planejament i de les actuacions urbanes. Iniciatives portades a terme tant per part de la iniciativa pública com de la privada.
El treball parteix d’una hipòtesi general on es considera que la ciutat no va comptar amb un model de planificació urbana, malgrat l’aplicació del planejament urbanístic.
Les principals fonts de recerca han estat els PGOU de 1964 i 1986, els Expedients d’Obres Públiques, els Llibres d’Actes de la Comissió Permanent de l’Ajuntament de Tortosa, les publicacions i la premsa local del període estudiat.
Les conclusions s’han dividit en dues parts. A la primera es constata la hipòstesi central del treball, mentre la segona fa èmfasi en la necessitat de disenyar un nou model de ciutat més integrador.
31
Van, Bloemestein Ulric Patrick. "Seasonal movement and activity patterns of the endangered geometric tortoise, Psammobates geometricus." Thesis, University of the Western Cape, 2005. http://etd.uwc.ac.za/index.php?module=etd&.
Повний текст джерелаАнотація:
Due to the critical status of Psammobates geometricus and the vulnerability of their habitat, there is a need to allocate areas for their protection. The aim of this study was to provide information on the space requirements and activity level of geometric tortoises to facilitate future conservation efforts.
32
Emer, Sherri Ann. "Temperature-Dependent Sex Determination in Manouria Emys Emys, The Asian Forest Tortoise." Digital Archive @ GSU, 2007. http://digitalarchive.gsu.edu/biology_theses/11.
Повний текст джерелаАнотація:
Captive husbandry programs in zoos have documented nesting behavior and have successfully hatched Manouria emys emys, but data on sex determining mechanisms and sex ratios are absent. A total of 30 M. e. emys eggs were artificially incubated at five different temperatures in constant humidity. Mean incubator temperatures were 24.99°C, 25.06°C, 27.18°C, 28.00°C, and 30.79°C. Incubation duration ranged from 60 days to 92 days, and hatching success was 50%. Sex determined by histology and laparoscopy resulted in male differentiation at low temperatures (24.99°C, 27.18°C) and female differentiation at high temperatures (30.79°C). Pivotal temperature was estimated to be 29.29°C. The following investigation into temperature-dependent sex determination (TSD), including its presence or absence, pattern, and pivotal temperature, has implications for studies of adaptive significance of reproductive behaviors and of chelonian phylogenetic history. Additionally, the proposed study can provide foundations for conservation management decisions, and for captive breeding programs.
33
Jones, Cristina Ann. "MYCOPLASMA AGASSIZII IN THE SONORAN POPULATION OF THE DESERT TORTOISE IN ARIZONA." Thesis, The University of Arizona, 2008. http://hdl.handle.net/10150/193431.
Повний текст джерелаАнотація:
Upper Respiratory Tract Disease (URTD), caused by the pathogens Mycoplasma agassizii and M. testudineum, has been documented in the desert tortoise (Gopherus agassizii). Although URTD was identified as a putative agent that led to federal listing of the Mojave population of the desert tortoise, little is known about this disease in the Sonoran population of the desert tortoise. The purpose of this study was to determine: 1) the prevalence of URTD across an urban gradient in Greater Tucson, Arizona, 2) the relationship between URTD and captive and free-ranging tortoises in Mohave, Maricopa, and Pima counties in Arizona, and 3) the effects of URTD on desert tortoise home range size and winter temperature selection.
34
O'Brien, Susan Helen. "Population dynamics and exploitation of the radiated tortoise Geochelone radiata in Madagascar." Thesis, University of Cambridge, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.620700.
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35
Kahn, Paula Faith Mendonça Mary T. "The physiological effects of relocation on gopher tortoises (Gopherus polyphemus)." Auburn, Ala., 2006. http://repo.lib.auburn.edu/2006%20Fall/Dissertations/KAHN_PAULA_49.pdf.
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36
Inman, Richard D. "How elusive behavior and climate influence the precision of density estimates and desert tortoise populations." abstract and full text PDF (free order & download UNR users only), 2008. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1453581.
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Cornacini, Fernando Henrique. "Interferência da variação sazonal de fatores ambientais no perfil hematológico e bioquímico metabólico de 'Chelonoidis carbonarius' /." São José do Rio Preto, 2020. http://hdl.handle.net/11449/192759.
Повний текст джерелаАнотація:
Orientador: Claudia Regina Bonini-DomingosResumo: O “jabuti-piranga” (Chelonoidis carbonarius) é um jabuti brasileiro, amplamente distribuído entre os estados do Nordeste, ocorrendo em áreas de Cerrado e campo aberto, mas também presente em recintos de zoológicos e aquários, distribuídos por todo o território nacional. São animais ectotérmicos, cujo metabolismo e fisiologia são influenciados por condições ambientais (como temperatura, umidade relativa da atmosfera e luminosidade) em magnitudes superiores aos dos animais endotérmicos, como aves e mamíferos, por exemplo. O atual trabalho tem por objetivo avaliar como esses fatores ambientais influenciam no perfil hematológico e bioquímico de “jabuti-pirangas” em cativeiro durante o período de um ano. Foi observado que machos e fêmeas diferiram no perfil hematológico, em que os primeiros apresentaram maiores valores para hematócrito, hemoglobina e eritrócito; enquanto que no perfil bioquímico, machos obtiveram maiores valores para glicose e as fêmeas para colesterol e triglicérides. Entre os meses do ano, foi possível observar menores valores para concentração de hemoglobina circulante e correspondentes índices hematimétricos nos meses de outubro e dezembro; enquanto que a concentração de colesterol e triglicérides teve aumento significativo em dezembro e junho, para machos e apenas em dezembro, para as fêmeas. Foi possível concluir que: a variação sazonal dos fatores ambientais influencia diretamente nos parâmetros hematológicos, reduzindo a concentração de hemoglobinas circul... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: The “red-footed tortoise” (Chelonoidis carbonarius) is a Brazilian tortoise, widely distributed among the states of the Northeast, occurring in areas of Cerrado and open fields, but also present in enclosures of zoos and aquariums, distributed throughout the national territory. They are ectotermal animals, whose metabolism and physiology are more influenced by environmental conditions (such as temperature, relative humidity and luminosity) than they are in endothermic animals, such as birds and mammals, for example. The aim of the current study is to evaluate how these environmental factors influence the hematological and biochemical profile of “redfooted tortoises” in captivity during the period of one year. It has been observed that males and females differed in the hematological profile, in which the former had higher values for hematocrit, hemoglobin and erythrocyte; whereas in the biochemical profile, males obtained higher values for glucose and females for cholesterol and triglycerides. Between the months of the year, it was possible to observe lower values for circulating hemoglobin concentration and corresponding hematimetric indices in the months of October and December; while the concentration of cholesterol and triglycerides increased significantly in December and June, in males and only in December, in females. It was possible to conclude the following: the seasonal variation of the environmental factors directly influences the hematological parameters, reducing t... (Complete abstract click electronic access below)
Mestre
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Murray, Roy Charles 1968. "Mark-recapture methods for monitoring Sonoran populations of the desert tortoise (Gopherus agassizii)." Thesis, The University of Arizona, 1993. http://hdl.handle.net/10150/278380.
Повний текст джерелаАнотація:
I determined reliable methods for monitoring Sonoran populations of the desert tortoise. Tortoises were significantly clumped (p < 0.001) on three 1-mi² plots in Arizona, but were not significantly different from random (p > 0.05) on a 1-km² plot, supporting the use of smaller plots in mark-recapture population studies. Simulations showed that Program CAPTURE's Jackknife and Darroch estimators are robust to variations in capturability, which confound most commonly used estimators (e.g., Lincoln-Petersen). Mean capturability determines which estimator is most appropriate for a given population. These methods were applied to data from several tortoise populations. CAPTURE's Jackknife method estimated 70 tortoises/km² in a Mazatzal Mountain, Arizona, population surveyed during 1992. Density was corrected with the mean maximum distance moved method. Regression of CAPTURE estimates indicated two separate populations were stable or increasing from 1990 to 1992, while a third declined. Program JOLLY estimated high survivorship for these three populations (87-100%), but recruitment was lowest for the decreasing population (0-17 tortoises/year).
39
Keese, William. "A Remotely Operated Multi-Tracked Vehicle for Subterranean Exploration of Gopher Tortoise Burrows." Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3179.
Повний текст джерелаАнотація:
The gopher tortoise is a land tortoise living in the southeastern United States. It is a species in decline and is listed as threatened or endangered in six different states. The gopher (as commonly referred) digs burrows that it uses for many reasons and spends most of its time underground. Problems occur when trying to estimate a population because a gopher tortoise digs more than one burrow. This thesis demonstrates an innovative way to survey and investigate a gopher tortoise burrow hole by using a multi-tracked remotely operated vehicle. The vehicle carried two cameras (fore and aft) and was equipped with a microphone and LED illumination. It has tracks on four sides to increase its propulsion ratio. Its performance was evaluated in a sand pit where parameters such as incline could be controlled, and in an actual tortoise burrow. This research was done in conjunction with the Hillsborough County Parks and Recreation Department.
40
Quintanilla, Pablo. "The Sphere and the Tortoise. The Possibilities of a Holistic Theory of Justification." Pontificia Universidad Católica del Perú - Departamento de Humanidades, 2013. http://repositorio.pucp.edu.pe/index/handle/123456789/112752.
Повний текст джерелаАнотація:
This paper discusses the traditional opposition between a foundationalist and a coherentist account of justification. pointing to their inconveniences and showing why neither can make for an adequate theory of knowledge. It is suggested that, in order to overcome this opposition, it is required to build a holistic theory of belief that can support a holistic theory of justification. The paper has three parts. In the first one the author discusses the objections against foundationalism, focusing on the notion of basic belief and of non-doxastic justification. In the second part it is examined the objections against coherentism, focusing on the infinite regress of the requirement of epistemic ascent. Finally. in the third part the author analyzes the concept of belief and the way an interpreter attributes beliefs to an agent. It is also assessed to what extent it is possible to redefine the notion of basic belief, in order to place it in a proper theory of justification. Thea uthor suggests that the concept of belief emerges in an intersubjective and interpretative setting, the same which will permit the justification of beliefs.En este artículo, el autor examina la tradicional oposición entre el fundacionalismo y el coherentismo como teorías de la justificación, mostrando sus limitaciones y las razones por las que ninguna de ellas puede ser parte de una adecuada teoría del conocimiento. Se sugiere que, para superar esta oposición, es necesario desarrollar una teoría holista de la creencia que, a su vez, permita la elaboración de una teoría holista de la justificación. El artículo consta de tres partes. En la primera, el autor discute las objeciones contra el fundacionalismo, concentrándose en la noción de creencia básica y en la justificación no-doxástica. En la segunda, se examina las objeciones contra el coherentismo. concentrándose en el regreso al infinito del requisito de ascenso épistémico. Finalmente, en la tercera parte el autor aborda el concepto de creencia y la manera como un intérprete atribuye creencias a un agente. También se analiza hasta qué punto es posible reformular la noción de creencia básica con el fin de darle un lugar en una adecuada teoría de la justificación. El autor sugiere que el concepto mismo de creencia surge enun contexto intersubjetiva e interpretativo. siendo ese mismo contexto el que va a permitir la justificación de creencias.
41
Trillo, Paula Alejandra. "Pre- and post-copulatory sexual selection in the tortoise beetle Acromis Sparsa (Coleoptera Chrysomelidae)." [Missoula, Mont.] : The University of Montana, 2008. http://etd.lib.umt.edu/theses/available/etd-03212009-144120/unrestricted/Trillo_umt_0136D_10003.pdf.
Повний текст джерела
42
Sparks, Sharna. "Blood cell histology of Homopus areolatus: effects of season and cohort." University of the Western Cape, 2015. http://hdl.handle.net/11394/4776.
Повний текст джерелаАнотація:
Magister Scientiae (Biodiversity and Conservation Biology)Homopus areolatus is an endemic terrestrial tortoise that resides in a Mediterranean type of climate, which is characterised by winter rainfall and mild winter temperatures. Within ectotherms, such as H. areolatus, physiological changes are elicited by changes in the ambient temperature. These physiological changes are evident in the blood profile of reptiles. I described the morphology of immature and mature erythrocytes, leukocytes as well as thrombocytes of H. areolatus. Additionally, I evaluated erythrocytes, leukocytes and thrombocytes to assess the effects of season and cohort on these cells. Blood samples were collected in 2000 and 2001 at Elandsberg Nature Reserve in the Western Cape from H. areolatus cohorts (female, male, juvenile) in all seasons (spring, summer, autumn, winter). Blood smears were made and stained with modified Giemsa stain. SigmaStat was used for all statistical analysis. Immature erythrocyte types within H. areolatus included basophilic rubricytes, polychromatophilic rubricytes and polychromatophilic erythrocytes. Upon my evaluation, I encountered evidence to suggest that small and large immature erythrocytes possibly developed from two distinctive lineages. Further research is required to discern which lineage gave rise to which immature erythrocyte type. Cohort had no effect upon immature erythrocytes. Erythropoiesis was most prevalent during winter and spring within H. areolatus. Aberrant features of erythrocytes appeared to be more prevalent during autumn, which signified the driest season with limited food and water. Mature erythrocytes play a huge role in oxygen transport and metabolism in individuals. Factors such as size and shape are relevant since small, mature, ellipsoidal erythrocytes transport oxygen more efficiently than large, spherical erythrocytes. In H. areolatus small, mature, ellipsoidal erythrocytes appeared to be most prevalent during spring and summer. During winter however, large, spherical erythrocytes appeared to be most prevalent. Thrombocytes and seven types of leukocytes were observed within H. areolatus, namely heterophils, lymphocytes, eosinophils, basophils, monocytes, plasma cells and azurophils. Among cohort and season heterophils were most prevalent overall, followed by lymphocytes and eosinophils respectively. Basophils, monocytes, plasma cells and azurophils were present but overall, were relatively few. H. areolatus appeared to be healthy, and leukocyte counts as well as its dimensions appeared to be in accordance with other reptilian studies. This study serves as the first baseline haematological reference forH. areolatus. The study forms the second of its kind on South African tortoises, only one other haematological study has been done namely, P. geometricus which is a sympatric species to H. areolatus.
43
Lavallin, Abigail V. "An Investigation of Habitat Suitability Factors and their Interactions for Predicting Gopher Tortoise Habitat." Scholar Commons, 2018. https://scholarcommons.usf.edu/etd/7538.
Повний текст джерелаАнотація:
This thesis evaluates the interaction between four habitat factors vital to the gopher tortoise in Florida. Federally and state listed as threatened throughout its entire range, the gopher tortoise is vital to protect, not only for itself individually but its burrows provide an essential habitat to over 300 species making it a key stone species within its environment. Historic habitat modeling methods are reviewed for the gopher tortoise to highlight the gap on this topic. This research expanded on the methods utilized by Baskaran et al. (2006) evaluating the soil, landcover, percentage of canopy cover and the depth to water table habitat factors key to the gopher tortoise. Statistical analysis was used to establish the interactions using a regression type analysis of the presence/absence data relative to the four factors. A probability map for the study site was then computed from the results. The Analysis of Deviance results for the statistical model with land cover type as an independent variable and a 3-way interaction term for the other factors found that the land cover term was significant as an independent variable and the 3-way interaction of the other 3 habitat factors was significant. This result demonstrates that there is in fact an interaction between the habitat factors influencing the location of gopher tortoises. This finding is significant in future gopher tortoise research as it indicates that habitat factors evaluated individually may not be as important as the interactions between the factors. By understanding the interactions between the habitat factors, the FWC can work alongside other agencies to ‘increase and improve’ these key habitat areas preventing them from destruction. The map results also help pinpoint those fragmented potential habitat sites which are most at risk from full destruction and loss allowing agencies the work on protecting and expanding the suitable habitat landscape in order to ‘enhance and restore’ the gopher tortoise populations residing there, helping them to ‘maintain the gopher tortoise’s function as a keystone species’
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Walton, Shasheen. "Effects of season and cohort on the haematology of the geometric tortoise Psammobates geometricus." University of the Western Cape, 2012. http://hdl.handle.net/11394/4543.
Повний текст джерелаАнотація:
Magister Scientiae (Biodiversity and Conservation Biology) - MSc (Biodiv and Cons Biol)The geometric tortoise is one of the world‟s rarest terrestrial tortoises and is endemic to the Southwestern Cape, South Africa. There has been cause for conservation concern for Psammobates geometricus, yet as is common for many species, quantitative physiological research has been lacking. Considering the important role of red blood cells in oxygen circulation, and the role of white blood cells in immune resistance, blood profiles have been used across taxa as a reliable indicator of health status and physiological processes. Forming part of a larger chelonian conservation programme in South Africa, I studied the haematological changes in P. geometricus, to better understand their physiological responses to changes in climatic conditions. Sampled peripheral blood from males, females and juveniles of the largest known wild geometric tortoise population over four seasons (spring, summer, autumn and winter) from August 2000 to June 2001. Blood samples were used to make smears and determine red cell count (RCC), packed cell volume (PCV), haemoglobi concentration (Hb), red cell indices and differential white cell counts. Digital imaging analysis was used for the histological evaluation of stained blood smears, including descriptions of red and white blood cell morphologies, as well as erythrocyte developmental stages. In the cooler periods, geometric tortoises showed low Hb and mean cell haemoglobin concentration values. Erythrocytes were larger and rounder in winter and spring, which were likely due to hydration states. In addition, increased numbers of immature erythrocytes in circulation suggested an erythropoietic response in winter and spring. This regenerative response is common in reptiles emerging from periods of limited activity and is associated with increasing primary production following rainfall events. In the following summer and autumn, increased mean cell haemoglobin concentrations suggested elevated metabolic rates influenced by rising temperatures. This would seem pertinent to meet the extra physical demands associated with foraging effort in the season characterised with limited water and food supply, and mating behaviour, which occurs in the summer. Low body conditions across all cohorts provided evidence for nutrition stress, while erythrocyte size, shape and degenerative responses indicated dehydration stress. Physiological responses to seasonal influences are specific to growth or reproductive demands and differed for each cohort. Males experienced increased Hb, PCV, RCC, and erythrocyte sizes in summer and autumn, which relate to the erythropoieticstimulating effects of androgens. Female erythropoietic cycles in spring accommodate the increased metabolic demands of increased foraging needed for a larger body size and egg production, and again in autumn again for vitellogenesis. Juvenile tortoises showed minimal differences, and could indicate species-specific responses to environmental changes. A spring-related erythropoiesis was observed in juveniles while during summer and autumn, juveniles showed less evidence for dehydration stress than in adults. No haemoparasites were observed in peripheral blood. Seven leukocyte types were identified and included heterophils, eosinophils, basophils, lymphocytes, plasma cells, monocytes and azurophils, in addition to thrombocytes. Heterophils were the most abundant leukocyte, followed by lymphocytes and eosinophils while monocytes and basophils were equally low; plasma cells and azurophils were rare. Heterophil counts were higher in spring than in summer and autumn, and in summer, were more abundant in females than in juveniles. Eosinophil counts were low in spring for all cohorts, and additionally, female and juvenile counts were low in summer. Eosinophils in juveniles were significantly lower than in adults in winter and spring. Lymphocyte numbers increased in autumn for all cohorts, while summer counts were higher in juveniles than in adults. Basophils and monocytes showed minimal seasonal changes, although basophil counts in females in winter tended to be high. Thrombocytes were lowest in spring for all cohorts. Understanding the physiological responses associated with seasonal changes and for each cohort is critical for effective chelonian conservation management. Results obtained from this study indicate a clinically healthy population of Psammobates geometricus and represented the first of this kind to establish baseline haematological reference data for this Critically Endangered tortoise species.
45
Crossley, Dane Alan. "Development of Cardiovascular Regulation in Embryos of the Domestic Fowl (Gallus Gallus), with a Partial Comparison to Embryos of the Desert Tortoise (Gopherus Agassizii)." Thesis, University of North Texas, 1999. https://digital.library.unt.edu/ark:/67531/metadc2223/.
Повний текст джерелаАнотація:
In adult vertebrates, cardiovascular regulation is accomplished by numerous systems with neural, hormonal and local components responsible for the majority of regulation. These regulatory components work in concert to maintain the essential function of blood perfusion to adult tissues. Given the essential nature of this function it is therefore surprising that the development of cardiovascular regulation during gestation is poorly understood. The majority of what is known is based on a single vertebrate model, the fetal lamb. The fetal lamb has been used in multiple studies due to the clear clinical applications and has been pivotal in understanding the onset of regulation in developing vertebrates. However, study on the fetal lamb is limited to the latter 40% of gestation and has the added complication of an in-utero developmental strategy. Therefore the primary focus of this dissertation was to characterize basic cardiovascular regulation in the chicken embryo to provided the needed information for it's use an alternative to the fetal lamb. Developing chicken embryos rely on both alpha and beta adrenergic tones to maintain normal heart rate and arterial blood pressure during incubation. However, on day 21, just prior to hatch, these animals lose both tones on arterial pressure suggesting the onset of adult regulation. Cholinergic tone, however, was absent throughout chicken development indicating that it must mature during the neonatal life. Adult cardiovascular reflexes become apparent late in chicken development with a clear baroreflex specifically operating initially on day. However, an adult response to changes in ambient gas tension was absent during incubation suggesting embryos possess unique regulatory systems that are absent in adult chickens. This mechanism is comprised entirely of adrenergic systems with no cholinergic action during change in ambient gas tension. Similar developmental patterns were determined in embryos of the desert tortoise suggesting fundamental differences between in-utero and ex-utero developing vertebrates.
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Keswick, Tobias. "Ecology and morphology of the Kalahari tent tortoise, Psammobates oculifer, in a semi-arid environment." Thesis, University of the Western Cape, 2012. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_6549_1355385737.
Повний текст джерелаАнотація:
Southern Africa harbours one-third of the world&rsquo
s Testudinid species, many of which inhabit arid or semi-arid areas, but ecological information on these species is scant. I studied the habitat, morphology and ecology of Kalahari tent tortoises over 13 months in semi-arid Savanna at Benfontein farm, Northern Cape Province, South Africa. In order to allow continuous monitoring of individuals, I attached radiotransmitters to males and females, split equally between two habitats, sites E (east) and W (west), with apparent differences in vegetation structure. Results of the study were based on data obtained from 27 telemetered tortoises and 161 individuals encountered opportunistically. Female Kalahari tent tortoises were larger than males and the sex ratio did not differ from 1:1. Based on person-hours to capture tortoises, the population appeared to have a low density, with more time required to capture a juvenile (35 hours) than an adult (10-11 hours). The frequency distribution of body size ranges was indicative of recruitment. Relative age, based on annuli counts, suggested that males were younger than females, perhaps because males as the smaller sex are more predation-prone than females. Linear relationships between annuli counts and shell volume indicated that, after reaching sexual maturity, female body size increased faster in volume than did male body size, possibly because a larger volume may enhance female reproductive success. Body condition differed between sites, sexes and among seasons. The hot and dry summer may account for low summer body condition, whereas vegetation differences and size effects, respectively, may account for the low body condition of tortoises in site W and in males. Site E was sandy with grasses, particularly Schmidtia pappophoroides, being the prevalent growth form. This habitat resembled a Savanna vegetation type Schmidtia pappophoroides &ndash
Acacia erioloba described for a neighbouring reserve. Site W was stonier, dominated by shrubs, and was reminiscent of Northern Upper Karoo vegetation (NKu3). Neither site resembled Kimberley Thornveld (SVk4), the designated vegetation type of the area. Differences in substrate and grazing intensity may have contributed to site vegetation differences. Rainfall had an important influence on seasonal vegetation. Short grass abundance correlated with rainfall and annual plants sprouted after spring rain. Refuge use changed according to season and sex. Males selected denser refuges than females did, perhaps because males were smaller and more vulnerable to predation and solar heat. Tortoises selected sparse, short grass as refuges in cool months, probably to maximise basking whilst remaining in protective cover. During hot periods, mammal burrows were preferred to vegetation as refugia. The smaller males spent more time in cover than females, which may be related to predator avoidance or thermoregulation.
Females spent more time basking than males, perhaps due to their larger size and to facilitate reproductive processes. Tortoises did not brumate, but through a combination of basking, and orientation relative to the sun in their refuges, managed to attain body temperatures that allowed small bouts of activity. Body temperature for active tortoises was similar among seasons, and was higher for more specialised active behaviours, such as feeding and socialising, than for walking. Increased activity by males in spring could relate to mating behaviour while females were more active in autumn, when they foraged more than males, perhaps due to the high cost of seasonal reproductive requirements. Males displaced further per day than did females, but home range estimates did not differ between sexes. Annual home range estimates varied substantially among individuals: 0.7&ndash
306 ha for minimum convex polygons and 0.7&ndash
181 ha for 95% fixed kernel estimates. The ability to
cover large areas would assist tortoises in finding resources, e.g., food, in an area where resource distribution may be patchy. Differences among seasonal home ranges and movements probably reflect seasonal climatic change
activity areas shrinking when temperatures were extreme. In order to assess the effects of a semi-arid environment on the morphology of P. oculifer, I compared its morphology to that of its &lsquo
cool-adapted&rsquo
sister taxon Psammobates geometricus, using live and museum specimens. Both P. oculifer and P. geometricus are sexually dimorphic and differences between the two species could indicate environmental or sexual selection effects, or a combination of the two. The shorter bridge length, which allowed more leg space, and wider front feet in P. oculifer cohorts probably represent traits for manoeuvring in a sandy habitat, while wider heads in P. oculifer possibly relate to interspecific differences in diet. The flatter shell in female P. oculifer, relative to P. geometricus, may represent a trade-off between space for reproductive structures, e.g., eggs, and the need to fit into small refuges, e.g., mammal burrows. Male P. oculifer had wider shells, more space around their hind legs, and wider hind feet than P. geometricus males had, all characteristics which may assist males to fight and mate in a sandy environment.
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Meroz, Elazar. "Mathematical, philosophical, religious and spontaneous students' explanations of the paradox of Achilles and the tortoise." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ40197.pdf.
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Martin, Brent Errol 1952. "Ecology of the desert tortoise (Gopherus agassizii) in a desert-grassland community in southern Arizona." Thesis, The University of Arizona, 1995. http://hdl.handle.net/10150/278515.
Повний текст джерелаАнотація:
After 6-10 years of mark-recapture observations, I studied seven desert tortoises by radio-telemetry during 1990-1992 in a desert-grassland community in Pinal County, Arizona. Six estimated home-range areas averaged 14.7 ha. Winter-spring (Nov-Jun) use areas (overline x=0.7 ha) were significantly smaller (P = 0.002) than summer-fall (Jul-Oct) use areas (overline x=10.7 ha). A correction formula inflated 1-2 summer-fall use areas of five tortoises 4-41% larger than their corrected home-range areas. Extended movements by females were significantly more frequent (P = 0.0001) than those of males during Mar-Jul, significantly less frequent (P = 0.0057) than males during Aug-Oct, and most frequent by both sexes in September. Use of two slopes and terraces was not season-dependent (P = 0.9159). Tortoises variably used four shelter types (rock, soil burrow, wood rat nest, vegetation), significantly with south-facing entrance aspects (P 0.0005). Hibernaculum structure and location varied. Hibernation ranged from 88-315 days. Radio-equipped tortoises included reuse of mark-recapture locations.
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Tollis, Marc, Dale F. DeNardo, John A. Cornelius, Greer A. Dolby, Taylor Edwards, Brian T. Henen, Alice E. Karl, Robert W. Murphy, and Kenro Kusumi. "The Agassiz’s desert tortoise genome provides a resource for the conservation of a threatened species." PUBLIC LIBRARY SCIENCE, 2017. http://hdl.handle.net/10150/624695.
Повний текст джерелаАнотація:
Agassiz's desert tortoise (Gopherus agassizii) is a long-lived species native to the Mojave Desert and is listed as threatened under the US Endangered Species Act. To aid conservation efforts for preserving the genetic diversity of this species, we generated a whole genome reference sequence with an annotation based on deep transcriptome sequences of adult skeletal muscle, lung, brain, and blood. The draft genome assembly for G. agassizii has a scaffold N50 length of 252 kbp and a total length of 2.4 Gbp. Genome annotation reveals 20,172 protein-coding genes in the G. agassizii assembly, and that gene structure is more similar to chicken than other turtles. We provide a series of comparative analyses demonstrating (1) that turtles are among the slowest-evolving genome-enabled reptiles, (2) amino acid changes in genes controlling desert tortoise traits such as shell development, longevity and osmoregulation, and (3) fixed variants across the Gopherus species complex in genes related to desert adaptations, including circadian rhythm and innate immune response. This G. agassizii genome reference and annotation is the first such resource for any tortoise, and will serve as a foundation for future analysis of the genetic basis of adaptations to the desert environment, allow for investigation into genomic factors affecting tortoise health, disease and longevity, and serve as a valuable resource for additional studies in this species complex.
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Hathaway, Anna Louise. "Availability and Quality of Vegetation Affects Reproduction of the Gopher Tortoise (Gopherus polyphemus) in Improved Pastures." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4067.
Повний текст джерелаАнотація:
As part of a state-funded Gopher Tortoise (Gopherus polyphemus Daudin) translocation project, I monitored actively grazed improved pastures to determine if they could serve as suitable recipient sites for the threatened Gopher Tortoise displaced by human development. For cattle ranches to be considered suitable recipient sites females must be able to acquire sufficient energy to produce a clutch of viable eggs, and sufficiently high quality vegetation must be available to support juvenile recruitment into the population. Vegetation surveys were conducted to determine the composition and percent cover of plant species, especially those containing high amounts of nutrients, specifically nitrogen. Resident and relocated females were radiographed during the 2010 and 2011 nesting seasons for the presence of shelled eggs. I was able to determine clutch size and egg diameter for both relocated and resident gravid females. Mean clutch sizes were not significantly different between years. Resident females had larger mean clutch sizes than relocated females in both years, significantly so in 2011, suggesting a period of stress and adjustment for relocated females. Egg diameters were significantly larger by 2.5 to 4.5 mm in 2010 for relocated and resident females, respectively, compared to 2011. Three females were recaptured in both years and exhibited the same trend of similar clutch sizes between years but significantly smaller eggs in 2011. A total of 68 unique taxa from 31 families were found, grasses (Poaceae) were the most dominant and covered a mean of 57% of the total sampled area. Four forb species occurred at much greater percent covers than all others. However, only two species (Richardia and Desmodium) were found to have adequate nutritional content and occur at percent covers greater than five percent, indicating that forage availability may be high, but forage quality may be inadequate to support growing juveniles. Burrow surveys indicate that at least some hatchlings are able to successfully leave the nest by the presence of hatchling size burrows scattered throughout the fields, but the ratio of juveniles to eggs laid is especially low. Survivorship of eggs, hatchlings and juveniles may be too low to support a sustainable Gopher Tortoise population in improved pasture possibly because of lack of adequate forage, burrow compaction by cows, lack of available natural shelter material for protection from desiccation, and the reduced ability of movement in thick pasture grasses, especially by hatchling and yearling tortoises.