Academic literature on the topic 'Spicara'
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Journal articles on the topic "Spicara"
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MINOS, G., A. IMSIRIDOU, and G. KATSELIS. "Use of morphological differences for the identification of two picarel species Spicara flexuosa and Spicara maena (Pisces: Centracanthidae)." Mediterranean Marine Science 14, no. 3 (September 17, 2013): 26. http://dx.doi.org/10.12681/mms.423.
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The recognition and identification of the two species of Spicara genus (Spicara flexuosa, picarel and Spicara maena, blotched picarel) is difficult, due to a systematic confusion until now. In the present work a number of external morphometric features (ten body ratios) are evaluated for their diagnostic possibilities. According to Principal Component Analysis results, the body ratios head length to standard length, head height to head length and the ratios of two body heights, indicated that these characters were not related to the maturity stage of the species. The discriminant analysis based on the above body ratios, indicated rather high level of discrimination (83.2%) of the examined samples in two species. The results are discussed, and possibilities of improvement in the identification methodology for the two species are proposed.
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Imsiridou, A., G. Minos, A. Gakopoulou, V. Katsares, T. Karidas, and G. Katselis. "Discrimination of two picarel species Spicara flexuosa and Spicara maena (Pisces: Centracanthidae) based on mitochondrial DNA sequences." Journal of Fish Biology 78, no. 1 (December 7, 2010): 373–77. http://dx.doi.org/10.1111/j.1095-8649.2010.02858.x.
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Arculeo, M., A. Mauro, G. Scelsa, S. Brutto, M. Cammarata, and N. Parrinello. "Protein differences among the Mediterranean species of the genus Spicara." Journal of Fish Biology 49, no. 6 (December 1996): 1317–72. http://dx.doi.org/10.1111/j.1095-8649.1996.tb01798.x.
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Cengiz, Özgür. "Some reproductive characteristics of the blotched picarel Spicara maena (Perciformes: Centracanthidae) from Saros Bay, Northern Aegean Sea, Turkey." Revista de Biología Marina y Oceanografía 54, no. 2 (September 13, 2019): 174. http://dx.doi.org/10.22370/rbmo.2019.54.2.1905.
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This study was carried out, monthly, in the Saros Bay (Northern Aegean Sea, Turkey) between January 2015 and December 2015. The gonadosomatic index (GSI) and absolute fecundity (Fa) of the blotched picarel (Spicara maena) were analyzed . The present study contributes to the reproductive biology of S. maena by reporting the first data about the fecundity of the species for the Aegean Sea
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Özbilgin, Hüseyin, Zafer Tosunoğlu, Adnan Tokaç, and Gülnur Metin. "Seasonal variation in the trawl codend selectivity of picarel (Spicare smaris)." ICES Journal of Marine Science 64, no. 8 (July 27, 2007): 1569–72. http://dx.doi.org/10.1093/icesjms/fsm115.
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Abstract Özbilgin, H., Tosunoğlu, Z., Tokaç, A., and Metin, G. 2007. Seasonal variation in the trawl codend selectivity of picarel (Spicare smaris). – ICES Journal of Marine Science, 64: 1569–1572. Seasonal selectivity of commercial 40 mm polyethylene codend was tested for picarel (Spicara smaris) in spring (4–18 April 2002), summer (10–25 July 2002), autumn (26 September–2 October 2002), and winter (22–23 January 2003) in the Aegean Sea. Data were collected using the covered codend technique and analysed using the logistic equation with the maximum likelihood method. Four sets of selection curves were analysed and compared using the model developed by Fryer (1991). Highest L50 is in autumn (13.82 cm; s.e. 0.62), when water temperature is highest and the fish are expected to be in their best condition after summer feeding. Lowest L50 is in spring (11.09 cm; s.e. 0.51), when water temperature is lowest and the fish are at their spawning stage. However, there is not sufficient evidence to say that the seasonal variation in the selectivity of 40 mm polyethylene codend for picarel is statistically significant (p > 0.05).
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Moravec, František, Gabriella Gaglio, Salvatore Giannetto, and Fabio Marino. "Philometra spicarae sp. n. (Nematoda: Philometridae) from the abdominal cavity of the marine fish (picarel) Spicara smaris (Centracanthidae) off Sicily, Italy." Parasitology Research 107, no. 2 (April 29, 2010): 399–402. http://dx.doi.org/10.1007/s00436-010-1877-z.
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Vidalis, K., and N. Tsimenidis. "Age determination and growth of picarel (Spicara smaris) from the Cretan continental shelf (Greece)." Fisheries Research 28, no. 4 (December 1996): 395–421. http://dx.doi.org/10.1016/s0165-7836(96)00488-2.
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Tosunoğlu, Zafer, Yeliz Doğanyilmaz Özbilgin, and Hüseyin Özbilgin. "Body shape and trawl cod end selectivity for nine commercial fish species." Journal of the Marine Biological Association of the United Kingdom 83, no. 6 (December 2003): 1309–13. http://dx.doi.org/10.1017/s0025315403008737.
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This study investigates the catch components of a commercially used demersal trawl cod end in Izmir Bay, and reveals some of the morphological characteristics of nine commercial fish species; red mullet (Mullus barbatus), hake (Merluccius merluccius), whiting (Merlangius merlangus euxinus), poor cod (Trisopterus minutus capelanus), tub gurnard (Trigla lucerna), common pandora (Pagellus erythrinus), axillary sea bream (Pagellus acarne), picarel (Spicara smaris) and annular sea bream (Diplodus annularis) in relation to mesh size and shapes. Furthermore selectivity of 40-mm polyethylene netting cod end for red mullet, hake, common pandora, axillary sea bream, picarel and annular sea bream is presented. The results are discussed in a way to understand the probable effects of fish body shape on mesh selectivity.
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Karlou-Riga, Constantina, Dimitra Petza, and Konstantinos Ganias. "Sex change and oscillating growth pattern of the picarel (Spicara smaris) in the Saronikos Gulf (Greece)." Fishery Bulletin 116, no. 3-4 (October 22, 2018): 348–59. http://dx.doi.org/10.7755/fb.116.3-4.12.
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Cengiz, Özgür, and Şenol Paruğ. "Growth Parameters of Blotched Picarel (Spicara maena Linnaeus, 1758) From Saros Bay (Northern Aegean Sea, Turkey)." Acta Natura et Scientia 2, no. 1 (May 30, 2021): 40–48. http://dx.doi.org/10.29329/actanatsci.2021.314.7.
Full textDissertations / Theses on the topic "Spicara"
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Carreras, Aubets Marta. "Parasites of three fish species of commercial interest from the north-western Mediterranean sea: Mullus barbatus Spicara maena and Trachinus draco (Osteichthyes, Perciformes)." Doctoral thesis, Universitat Autònoma de Barcelona, 2013. http://hdl.handle.net/10803/121636.
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Les comunitats de paràsits de peixos han estat usades com a eines integrals per a la salut de l’ecosistema. L’objectiu general de la present tesi és doble: d’una banda es pretenia proporcionar una millor comprensió de la composició i l’estructura de les comunitats parasítiques dels teleostis perciformes Mullus barbatus L., Spicara maena (L.) i Trachinus draco L. del nord-oest Mediterrani (especialment, la costa de Catalunya) i testar si les variacions en l’estructura de la comunitat parasítica podien estar relacionades amb les càrregues de pol·lució i/o amb la varietat natural (geogràfica i temporal). El mostreig va tenir lloc el 2007 al nord-oest del Mar Mediterrani, davant de la costa de Barcelona (Catalunya, nord-est d’Espanya) a la plataforma continental, a profunditats d’entre 50-68 metres. Una vegada al vaixell, els individus foren mesurats (longitud total) i pesats (pes total). Els espècimens foren immediatament congelats a -20ºC en bosses de plàstic individuals per a posteriors procediments al laboratori. Els individus descongelats foren processats i examinats per buscar ectoparàsits i endoparàsits sota l’estereomicroscopi. Tots els paràsits recollits foren comptats i processats seguint les tècniques parasitològiques. Una nova espècie críptica pertanyent al “complexe A. laguncula”, Aponurus mulli n. sp., fou descrita en base a l’abundant material trobat en Mullus barbatus (hoste tipus) i en M. surmuletus capturats prop de les costes Mediterrànies espanyoles mentre que es varen redescriure dos digenis Hemiuridae que són freqüentment citats però molt poc coneguts, en base al material capturat a la costa de Barcelona de l’oest Mediterrani, Lecithochirium musculus (Looss, 1907) (Lecithochiriinae), , i Ectenurus lepidus Looss, 1907 (Dinurinae). D’altra banda, s’examinaren les comunitats parasítiques de Mullus barbatus L., una espècie mediterrània bioindicadora, mostrejada en un gradient de variacions de petita escala de PCBs en els sediments de la plataforma continental. Les respostes dels paràsits als nivells moderats de pol·lució observades foren validades simultàniament amb el monitoratge químic i amb l’efecte dels biomarcadors bioquímics. També vàrem descriure les comunitats de paràsits de Spicara maena (L.) i Trachinus draco L. del nord-oest Mediterrani, amb una visió en l’ús dels paràsits com a marcadors ambientals. El nematode Hysterothylacium fabri fou proposats per a futurs estudis de monitoratge ecològic de la costa de Catalunya.Parasite communities of fish have been used as comprehensive tags of ecosystem health. The general target of the present thesis is twofold: on the one hand we aimed to provide a better understanding of the composition and structure of parasite communities in the perciform teleosts Mullus barbatus L., Spicara maena (L.) and Trachinus draco L. from the north-western Mediterranean (specifically, the Catalonian coasts); on the other hand we aimed to test whether variations in parasite community structure can be related to pollution loads and/or with natural variability (geographical and temporal). Sampling took place in 2007 in the north-western Mediterranean Sea, in front of the coast of Barcelona (north-eastern Spain) on the continental shelf at depth of 50-68m. Once on board, individuals were measured (total length) and weighted (total weight). They were immediately frozen at -20ºC in an individual plastic bag for posterior procedures in the laboratory. Thawed specimens were processed and examined for ectoparasites and endoparasites under the stereomicroscope. All parasites collected were counted and processed following parasitological procedures. A new cryptic species of the ‘A. laguncula complex’, Aponurus mulli n. sp., was described on the basis of abundant material from Mullus barbatus (type-host) and M. surmuletus off the Spanish Mediterranean coasts whereas two frequently reported but poorly known Hemiuridae digeneans, Lecithochirium musculus (Looss, 1907) (Lecithochiriinae) and Ectenurus lepidus Looss, 1907 (Dinurinae), were redescribed based on material from off the Barcelona coast of the western Mediterranean. Otherwise, parasite communities of the Mediterranean sentinel fish species, Mullus barbatus, sampled at a small-scale PCB gradient at the shelf sediments, were examined. The observed parasite responses to moderate levels of pollution were simultaneously validated by both chemical monitoring and biochemical biomarkers effects. We also described the parasite communities of Spicara maena (L.) and Trachinus draco L. off the north-western Mediterranean, with a view of using parasite species as environmental tags. The nematode Hysterothylacium fabri is purposed for future studies in ecological biomonitoring for the coast of Catalonia.
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Touati, Boumediene. "Etude théorique et expérimentale du séchage solaire des feuilles de la menthe verte (Mentha viridis)." Lyon, INSA, 2008. http://www.theses.fr/2008ISAL0086.
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Les plantes médicinales et aromatiques et en particulier les feuilles de la menthe verte ont beaucoup d'importance pour la pharmacopée, la parfumerie, et la liquoristerie. Afin de développer un code de calcul permettant de simuler le séchage solaire en convection forcée de cette plante, une détermination expérimentale des isothermes de sorption a été menée. Les courbes de sorption ainsi obtenues sont ensuite approchées par des modèles empiriques et semi-empiriques utilisables dans un modèle numérique d'un séchoir. Une autre étude expérimentale est consacrée à la détermination des cinétiques de séchage dans des conditions contrôlables ainsi que dans un séchoir solaire. Les courbes de perte de masse et l'influence de la température et de la vitesse de l'air asséchant sont étudiées dans le but de déterminer la courbe caractéristique de séchage (CCS), et par conséquent la corrélation empirique exprimant la vitesse de séchage de la menthe verte étudiée. Par la suite les deux corrélations ainsi obtenues sont introduites dans un programme écrit en Fortran afin de valider les résultats expérimentaux de la teneur en eau et la vitesse de séchage en fonction du temps pour les modes de séchage et d'étudier l'influence de la température, du débit, de l'hygrométrie de l'air asséchant et de la masse initiale des feuilles de menthe. Afin de dimensionner notre séchoir une étude paramétrique basée sur la technique des plans d'expérience est menée. Le modèle développé dans ce travail permettra de dimensionner un séchoir et d'étudier son fonctionnement dans le cas d'utilisation avec un capteur solaire afin de définir les conditions optimales de séchageMedicinal and aromatic plants and particularly green mint leaves have a great importance for chemistry perfuming, confisery and liquoristry. In order to develop a calculating code that permits to simulate solar drying in a forced convection of this plant, an experimental determination of sorption isotherms has been led with the help of the solutions method of state salts. Sorption curves thus obtained are then approached by empiric and semi empiric models used in a numerical model of drying. Another experimental study is devoted to the drying kinetic determination in the controlled conditions and in a solar drying. The mass loss curves and the influence of the temperature and seed dried air are studied to determine drying characteristic curve (D. C. C. ), and therefore the empiric correlation expressing the speed of drying of the studied green mint. After that the two obtained correlations are introduced in a program written in FORTRAN so as to validate the experimental results of moisture content and the drying speed in terms of time for drying modes and to study the temperature, the debit, the hygrometry drying air influence and of the initial mass of the mint leaves. In order to dimension our drying, a parametric study based on the experience plans technique is led. The model developed in this work will permit to dimension a drier and to study its functioning in case it is used with a solar collector in order to define the optimal drying conditions
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Furniss, Caroline S. M. "NaCl-regulated gene expression in Distichlis spicata." Thesis, Durham University, 1994. http://etheses.dur.ac.uk/5833/.
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NaCl-induced and -repressed cDNA clones had previously been isolated by differential screening of a cDNA library, prepared from poly(A(^+)) RNA isolated from Distichlis spicata (salt grass) cell cultures grown in the presence of 260 mM NaCl (Zhao, et al., 1989). Eight of these cDNA clones have now been subcloned and/or sequenced and the predicted polypeptides compared with owl sequence data base. Three clones pDZ6.2, pDZVIII 1.2.1 and pDZIX 3.1 encode proline rich proteins, containing an amino acid repeat [PPKKDH(H)Y(Y)]. They have similar amino acid usage to proline-rich cell wall proteins, being rich in P, K, H and Y. The first 20 amino acid residues encode a putative leader sequence, supporting the proposed extracellular role as a cell wall protein. This N-terminal sequence (MPLLVALLLVLAVVAAAGAD) shares some similarity with die leader sequence of a soyabean proline-rich cell wall protein precursor and other extracellular proteins (the conserved residues are underlined). There is an increase in abundance of transcripts hybridising to the inserts from pDZ6.2 and pDZVUI 1.2.1 in response to either 520 mM NaCl or 100 µM ABA, but a decrease in response to 5 mM exogenous proline. It is suggested that the corresponding gene(s) are regulated at the level of either transcription or transcript stability, in response to elevated NaCl, with ABA as a mediator of (or part of) tills response. pDZ6.2 and pDZXI 3.1 have identical nucleotide sequences, whilst pDZVni 1.2.1 differs in three base paks within the putative open reading frame, suggesting that there may be at least two members of a multi gene family. A 68 bp OA repeat has been found in the 5' untranslated region of pDZ6.2 and a corresponding transcript identified by northern analysis using this OA sequence as a probe. Such nucleotide repeats can form triplexes (DNA) or hakpin loops (RNA), which is dependent on pH and ionic conditions. Therefore this OA repeat may play a role in the regulation of the gene corresponding to pDZ6.2 at the level of transcription or translation, possibly by attenuation of these processes, either by the formation of triplexes or hah-pins, or the binding of a protein to this GA region, at low ionic strength. However initial in vitro ttanscription experiments, to compare the transcriptional activity of pDZ6.2 and pDZVin 5.1.1 at different ionic strengths, proved inconclusive. An attempt was also made to identify the corresponding genomic region from D. spicata by anchored PGR.A fourth clone pDZ2.8L encodes a histone 2B protein, having 97.9% similarity to a wheat histone 2B. Its transcript abundance decreased in response to either 520 mM NaCl, 5 mM proline or 100 µM ABA. The sequences of the remaining clones either revealed no significant similarity to any known sequences or were assigned as being cloning artefacts .D. spicata cells accumulate proline within eight hours of exposure to 260 mM NaCl (Heyser, et al., 1989b). An unsuccessful attempt was also made to isolate a pyrroline-5- carboxylate reductase gene homologue from D. spicata, by heterologous probing of Southern blots with a soyabean cDNA pProCl and PCR.
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Dubickaitė, Inga. "Varpinės medlievos (Amelanchier spicata lam.) invazyvumą lemiančios biologinės ir ekologinės savybės." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110627_151812-24590.
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Svetimžemiais vadinami iš kitų kraštų kilę ir dėl žmonių veiklos į teritorijas, kuriose jie anksčiau neaugo, patekę augalai. Vienas iš tokių adventyvinių augalų yra varpinė medlieva (Amelanchier spicata) Taigi adventyvinių augalų skverbimasis yra nenutrūkstantis, su žmogaus veikla susijęs procesas, todėl galima teigti, jog tokių augalų šalyje ir toliau daugės.
Varpinės medlievos (Amelanchier spicata) tyrimai buvo atliekami 2007-2008 m. liepos – rugsėjo mėn. keturiose skirtingose vietovėse, t.y. Antaviliuose, Aukštuosiuose Paneriuose, Žemojoje Veržuvoje ir Antakalnyje. Kiekvienoje vietovėje buvo pasirinktas 10000 m2 plotas. Plotas suskirstytas į 16 laukelių, o vienas laukelis sudarė 625 m2. Šiose vietovėse vertinant antžeminių dalių morfologinius parametrus buvo matuojamas stiebų aukštis, aukštis iki pirmos šakos, skersmuo, nustatomas stiebų brandos amžius bei absoliutus amžius.
Tyrimų metu nustatyta, kad tankiausia buvo Antavilių populiacija. Pagal brandos amžiaus grupes visose tirtose populiacijose vyravo vegetatyviniai stiebai. Pagal morfologinius stiebų požymius visos keturios populiacijos skiriasi nedaug. Pagal absoliutųjį amžių daugiausia populiacijose buvo rasta antrų, trečių ir ketvirtų metų amžiaus stiebų, o mažiausiai septyniolikos, aštuoniolikos, devyniolikos ir dvidešimties metų amžiaus stiebų. Tirtose populiacijose morfologinių požymių kitimai priklauso tiek nuo amžiaus, tiek nuo populiacijos tankumo, tiek nuo konkurencijos bei skirtingų aplinkos sąlygų buveinėse... [toliau žr. visą tekstą]Exotic are the plants originating from the lands and coming due to the human activity to the areas where they never grow before. One of these adventive plants is thicket shadbush (Amelanchier spicata). So, penetration of adventive plants is a continuous process associated with human activities, therefore it can be argued that the number of such plants in the country will continue to grow. Research of thicket shadbush (Amelanchier spicata) was carried out in July - September 2007-2008 in four different areas, namely Antaviliai, Aukštieji Paneriai, Žemoji Veržuva and Antakalnis. The area of 10000 m2 was chosen in each location. The area was then divided into 16 squares, and one square constituted 625 m2. When evaluating the morphological parameters of the ground parts of the plants, the height of stalks, the height to the first branch, the diameter was measured, and the absolute age and maturity age of stalks was determined. It was determined during the research that the densest was Antaviliai population. According to the maturity age groups the vegetative stalks were dominating in all analysed populations. According to morphological stalk features all for populations differ very little. By absolute age, the highest number of plants in the populations was with the second, third and fourth year stalks, and the least number was with stalks of seventeen, eighteen, nineteen and twenty year old. Changes of morphological features in analysed populations depend on age, on the density... [to full text]
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Albuquerque, Marcos Roberto. "Avaliação de variabilidade genética e química em cunila spicata Benth." reponame:Repositório Institucional da UCS, 2004. https://repositorio.ucs.br/handle/11338/1405.
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Cunila spicata Benth. é uma planta aromática e medicinal utilizada popularmente no sul do Brasil como béquica, peitoral e sudorífera, e que apresenta comprovada atividade antiviral e anticonvulsiva. C. spicata é uma das 12 espécies sul-americanas do gênero Cunila (Lamiaceae) sendo encontrada em banhados e borda de mata de galeria no sul do Brasil, Argentina e Uruguai. Dentro deste contexto, no presente trabalho foi avaliada a variabilidade genética e química de populações de C. spicata coletadas nas regiões nordeste e sudeste do Rio Grande do Sul, com vistas a formação de bancos de germoplasma, determinação de estratégias de preservação e uso sustentável. Os marcadores ISSR e RAPD mostraram-se eficientes na determinação de variabilidade genética desta espécie, permitindo a identificação de todas as populações e indivíduos avaliados. As populações de C. spicata caracterizam-se como grupos geneticamente estruturados. Entretanto, não foi constatada formação de agrupamentos dentro da espécie, nem relação entre as distâncias genéticas e geográficas, ou entre as populações originarias das duas regiões geográficas amostradas. Por outro lado, a análise da composição dos óleos essenciais das 10 populações permitiu separar as mesmas em dois quimiotipos caracterizados por elevada concentração de α-terpineol/limoneno, e linalol, respectivamente. As populações da região sudeste enquadraram-se dentro do quimiotipo linalol, enquanto as da região nordeste no quimiotipo α-terpineol/limoneno. A relação geográfica e química é indicativa da existência de pressão de seleção quanto ao tipo de óleo essencial da região de ocorrência.Submitted by Ana Guimarães Pereira (agpereir@ucs.br) on 2016-12-01T16:00:30Z No. of bitstreams: 1 Dissertacao Marcos Roberto Albuquerque.pdf: 1631570 bytes, checksum: d32cbb1d10de9a5f37eb7dd664ddc20d (MD5)
Made available in DSpace on 2016-12-01T16:00:30Z (GMT). No. of bitstreams: 1 Dissertacao Marcos Roberto Albuquerque.pdf: 1631570 bytes, checksum: d32cbb1d10de9a5f37eb7dd664ddc20d (MD5) Previous issue date: 2016-12-01
Conselho Nacional de Desenvolvimento Científico e Tecnológico, CNPq.
Cunila spicata Benth. is a medicinal and aromatic plant popularly used in South Brazil as bequic, expectorant and sudiriferous, and that has confirmed antiviral and anti-convulsive activities. C. spicata is one of the 12 South-American species of the genus Cunila( Lamiaceae) been currently found in swamps and borders of gallery forests in South Brazil, North Argentina and Uruguay. In this context, the present work aimed to evaluate the genetic and chemical variability of C. spicata populations collected at the northeast and southeast regions of Rio Grande do Sul, to subside the construction of a germplasm bank, to determine conservation strategies, and to develop a sustainable use of this species. ISSR and RAPD markers proved to be efficients for the determination of the genetic variability of this species, allowing the identification of all the populations and individuals. C. spicata populations were characterized as genetically structured groups. However, clusters within the species were not evident, and no relations were detected between geographic and genetic distances, or between populations of the two regions. Conversely, the analysis of essential oil composition allowed the populations in two chemotypes, characterized by high concentration of α-terpineol/limonene, and linalool, respectively. The populations of the southeast region belong to the linalool chemotype, and those from the northeast region to the a-terpineol/limonene chemotype. This geographical and chemical relation is indicative of different selection pressures in the two regions.
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Mercer, Charlene Ashley. "Spatial Segregation of the Sexes in a Salt Marsh Grass Distichlis spicata (Poaceae)." PDXScholar, 2010. https://pdxscholar.library.pdx.edu/open_access_etds/173.
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Understanding the maintenance of sexual systems is of great interest to evolutionary and ecological biologists because plant systems are extremely varied. Plant sexual systems have evolved to include not only complete plants with both male and female reproduction occurring on one plant (i.e., monoecious and hermaphroditic) but also plants with male and female function on separate plants (dioecious). The dioecious reproductive system can be used to test theories on niche differentiation given that having separate plants potentially allows for the exploitation of a broader niche. This increase in the realized niche is due to the ability for separate sexes to occupy different niches, which may occur in different physical habitats. Some dioecious plants have been shown to occur in areas biased to nearly 100% male or nearly 100% female, called spatial segregation of the sexes (SSS). Occupying a broader niche could increase fitness in some species when the separation is used for one sex to gain access to resources that increase reproductive success and/or if the separation inhibits deleterious competition. These two mechanisms have been previously proposed for the evolution of SSS in dioecious plants. The first mechanism suggests that males and females have evolved to occupy different niches due to differences in reproduction (sexual specialization). The hypothesis for the sexual specialization mechanism is that females should have higher fitness in female-majority sites and males should have higher fitness in male-majority sites. The second mechanism states that males and females occupy different niches due to competition between the sexes (niche partitioning). The hypothesis for niche partitioning states that inter-sexual competition should decrease fitness more than intra-sexual competition. These mechanisms are not mutually exclusive. In our research we use the salt-marsh grass Distichlis spicata as our study species because this plant is dioecious and because molecular markers have been developed to determine the sex of juvenile plants. These molecular markers are important for testing the niche partitioning hypothesis for SSS in juveniles. Furthermore, previous work in California has shown that plants occur in areas nearly 100% female and nearly 100% male called spatial segregation of the sexes (SSS). The previous research also showed that female-majority sites were higher in soil phosphorus than male-majority sites. We conduct all research, presented in the proceeding chapters, on Distichlis spicata in the Sand Lake estuary near Pacific City, Oregon and in the laboratory at Portland State University. In Chapter 1 we used field data to answer two questions: (1) Does Distichlis spicata exhibit SSS in Oregon, and (2) If SSS is occurring, do differences occur in plant form and function (sexual specialization) in reproductive female and male plants in female-majority and male-majority sites? We used a sex ratio survey and collected field data on reproductive males and females. Our results show that there are female-majority and male-majority areas and SSS is occurring in the Sand Lake Estuary. Results from our native plant data suggest that reproductive females perform better in female-majority sites compared to male-majority sites which could suggest that sexual specialization is occurring in females. We currently have a long term field reciprocal transplant experiment in place to further address this hypothesis. In Chapter 2 we use field dada to address the following questions: (1) Does site-specific soil nutrient content occur in August, when females have set seed? (2) Does sex-specific mycorrhizal colonization occur in reproductively mature plants? (3) Does sex-specific mycorrhizal colonization vary seasonally in natural populations? Inside the roots of D. spicata a symbiotic relationship is formed between plant and arbuscular mycorrhizal fungus (AM). The AM- plant relationship has been shown to thrive in phosphorus limited areas because the mycorrhizal fungus increases nutrient access to the plant. We analyzed the results of the field soil nutrient content and mycorrhizal colonization in roots of native Distichlis spicata from male-majority and female-majority sites. The root colonization included staining roots with trypan blue and viewing sections of the roots under the microscope. Our results show that female- majority sites are higher in phosphorus and are found to have higher AM colonization than male- majority sites in the field. In Chapter 3 we then reciprocally transplanted D. spicata plants in the field to address the following questions: (1) Does niche partitioning occur in D. spicata, and (2) If niche partitioning is occurring, which plants are competing more? Our reciprocal transplant experiment included seeds grown in intra-sexual, inter-sexual and no competition in cones, planted directly into the field, and allowed to grow for 15 months. After the 15 months was over we measured survival, dry weight and root/shoot ratio. The design of the experiment was to determine the effects of competition (intra-sexual and inter-sexual) and no competition on (single male and female) on survival, biomass and root/shoot ratios. Our results show that niche partitioning is occurring and plants in inter-sexual competition have significantly less biomass then intra-sexual competitors. In, Chapter 4, we conduct a laboratory experiment to address the following questions: (1) Do plants show plasticity in their response to root exudates of the competing plant in regards to the sexual phenotype of the competitor? (2) Do plants show plasticity in their response to root exudates of the competing plant with respect to the relatedness of the competitor? We use sterile seeds grown in 24-well plates containing liquid media. For each competing plant, we picked plants up out of the wells and into the competing plants wells so that plants only experienced media that the competing plant had grown. At no time do roots ever come into contact with one another. We measured primary root length, number of lateral roots, the number of root hairs, root/shoot ratio and total dry weight. We analyzed the study two different ways, one for sexual type competition (inter-sexual, intra-sexual, none) and for plant relationship (KIN, STRANGER and OWN). The results for the sexual type competition found that inter-sexual competition was greater for root/shoot ratio and dry weight. The results for plant relationship competition found that kin plants had a significantly greater number of lateral roots and a significantly longer primary root. The last chapter, Chapter 5, includes a summary of our conclusions. Our study found SSS occurring in the Sand Lake Estuary in Oregon with female-majority sites higher in phosphorus and root colonization higher in percent colonization of arbuscular mycorrhizal fungi compared to male-majority sites. Based on the sexual specialization hypothesis as a mechanism for SSS, we found that females had greater fitness in female-majority sites compared to male-majority sites, suggesting that sexual specialization is occurring in reproductive females. We then tested the niche partitioning hypothesis for SSS, and we found consistent lab and field results suggesting that niche partitioning due to inter-sexual competition is an explanation for why females and males D. spicata plants spatially segregate themselves at the juvenile life history stage. Furthermore, we found that plants that have the same mother had a significantly greater number of lateral roots and a significantly longer primary root. These results suggest that KIN plants respond differently to one another compared to plants paired with a plant not from the same mother (STRANGER) or when the plant is alone (OWN).
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Bueno, Perez Lynette. "Phytochemical and Biological Evaluation of Two Vietnamese Plants, Indigofera spicata and Millettia caerulea." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1402256396.
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Mamani, Curazi Belden Ivan. "Actividad antibacteriana de aceite esencial de Mentha spicata L. sobre flora mixta salival." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2013. https://hdl.handle.net/20.500.12672/3424.
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La fitoterapia es la terapia basada en plantas, alimentos y elementos nutritivos. Se encuentra entre las más antiguas. Esta terapia utiliza esencias puras de plantas para tratar diversos problemas, así dermatológicos, alérgicos, digestivos, ginecológicos, etc. Disminuyendo los efectos secundarios y haciendo más efectivos los tratamientos. La fitoterapia a través de los extractos naturales y sus destilaciones artificiales constituye la base de la medicina moderna y de la cosmética actual.
Se sabe que multitud de pueblos descubrieron ya en tiempos remotos, que algunas plantas eran buenas para comer y alimentarse y otras se caracterizaban por tener propiedades curativas. Con toda certeza, la búsqueda de algún remedio fue la génesis del uso de las plantas para su propio beneficio, ya fuera fruto del deseo de sanar o por cuestión mágico-religiosa, siendo simplemente en la mayoría de los casos con motivo de la búsqueda de nuevos alimentos.
Los egipcios, desarrollaron la utilización de las plantas medicinales de forma sistemática y estructurada, conociéndose más de 700 fórmulas en las que aparecen plantas curativas, destacando el impreso más importante, el Papiro de Ebers, 1700 A.C., pudiendo atribuirle un origen anterior en Asia. En China se supone que ya era utilizada en el 5000 A.C., destacando el libro de Pen Tsao que recoge el estudio de más de 300 plantas.
En la India se menciona la utilización de las plantas medicinales en Rig Veda, uno de los libros sagrados del brahmanismo. El Ayurveda o como se conoce el uso de las plantas medicinales en la India, hace referencias escritas al año 800 A.C., describiendo unas 800 especies. El conocimiento de las plantas medicinales se extendió desde el Antiguo Egipto y Mesopotamia hacia los países mediterráneos, hasta Grecia y luego por toda Europa para llegar 2000 años más tarde al Nuevo Mundo.
El conocimiento de las plantas medicinales, ya sea a través de la magia, religión, necesidad o casualidad, o a veces como consecuencia del ensayo-error ha permitido obtener un conocimiento de las plantas medicinales entre las diferentes culturas que constituyen la base de la medicina moderna, sabiduría que nos corresponde a todos conocer y salvaguardar como parte de nuestro patrimonio. En la actualidad ha resurgido el interés público y científico en el desarrollo de la medicina natural tradicional con el impulso de nuevas tecnologías que descubren cada día nuevas propiedades y aplicaciones a los diferentes principios activos de las plantas, subrayando el carácter dinámico y de servicio en beneficio de la humanidad en el estudio de las plantas medicinales.
La odontología no escapa de estos antecedentes históricos, que nos ofrecen una alternativa a tomar en cuenta, y a la vez nos estimula para asumir con responsabilidad nuevos retos que nos llevan a proponer recursos novedosos para el control y tratamiento de las enfermedades estomatológicas con mayor prevalencia en nuestra población.Tesis
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Hernández, Oyarzún Juan Eduardo. "Tolerancia a estrés térmico en plántulas con heterogeneidad genética (quiméricas) y unitarias en la macroalga parda Lessonia spicata (Phaeophyceae)." Tesis, Universidad de Chile, 2018. http://repositorio.uchile.cl/handle/2250/151854.
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título de Biólogo con mención en Medio AmbienteEl quimerismo ocurre cuando dos individuos genéticamente distintos y conspecíficos se fusionan o coalescen generando una única entidad genéticamente heterogénea conocida como quimera. Este aumento en la variabilidad genética intraorganismo supondría un aumento en la variabilidad fenotípica del mismo, lo que conferiría a estas entidades una mayor tolerancia ante cambios ambientales en comparación a individuos genéticamente homogéneos o no quiméricos, posiblemente debido a efectos sinérgicos entre las distintas líneas celulares. El beneficio de ser quimera ha sido estudiado en distintos grupos de algas, particularmente en especies de algas rojas (Gracilaria y Mazzaella), las cuales muestran una correlación positiva entre coalescencia y tolerancia al estrés. A pesar de ello, en macroalgas pardas los estudios han sido mayoritariamente descriptivos, evidenciado los procesos de formación de entidades quiméricas, así como la frecuencia del quimerismo en poblaciones naturales de Lessonia spicata. Sin embargo, se desconoce aún si en esta especie los organismos con quimerismo muestran mayor tolerancia al estrés que aquellos genéticamente homogéneos y si existe un efecto en la adecuación biológica de la quimera de acuerdo al número de individuos fusionados así como el nivel de parentesco de los individuos que se fusionan para formar la quimera (e.g. fusión entre hermanos, medios hermanos, vecinos, poblaciones distintas). Basado en lo anterior, el objetivo de este estudio fue evaluar la tolerancia a estrés por temperatura de plántulas quiméricas y unitarias de L. spicata cultivadas en condiciones contrastantes de temperatura, distinto número de individuos fusionados y nivel de parentesco. Para ello, primero se desarrolló un protocolo para la generación masiva de plántulas con variabilidad genética intraorganismo de L. spicata en laboratorio. Segundo, se evaluó la tolerancia al estrés en términos de la tasa de crecimiento en condiciones contrastantes de temperatura (12±2°C vs 18±2°C) de plántulas quiméricas con distinto número de individuos fusionados versus unitarias. Tercero, se evaluó el efecto del parentesco sobre la quimera y el estrés térmico, comparando crecimiento entre unitarias, quimeras conformadas por cepas locales y quimeras conformadas por cepas de distintas poblaciones. Los resultados indicaron que plántulas quiméricas provenientes de la fusión de 5 esporofitos poseen una mayor tasa de crecimiento que las plántulas unitarias en condiciones normales de temperatura (12°C). Mientras que a estrés 10 térmico (18ªC) plántulas quiméricas también poseen una mayor tasa de crecimiento, pero la significancia de la respuesta depende de la densidad y parentesco de las entidades que forman la quimera. En términos de parentesco, los resultados sugieren que las quimeras provenientes de la fusión de esporofitos de plantas no emparentadas poseen una tasa de crecimiento mayor que quimeras formadas con medios hermanos. A la luz de estos resultados es posible concluir que el quimerismo en la macroalga parda Lessonia spicata le conferiría una ventaja a dichos organismos frente a los continuos cambios ambientales. Este hecho adquiere relevancia si se sabe que la especie está constantemente expuesta a cambios de la temperatura producto del Niño, así como el aumento de la temperatura del océano causado por cambio climático.
Chimerism occurs when two genetically distinct and conspecific individuals fuse or coalesce, generating a single entity genetically heterogeneous known as chimera. This condition increase the intraorganismal genetic variability, that could increase in the phenotypic variability and provide higher tolerance to environmental changes compared to genetically homogeneous or non-chimeric individuals. These can be produced due to synergistic effects between the genetically different cell lines that coexist into the chimera. The benefit of chimeric condition has been studied in different groups of macroalgae, particularly in the red species (Gracilaria and Mazzaella). They show a positive correlation between coalescence and stress tolerance. Despite of this, in the brown macroalgae the studies have been poorly described, most of them are descriptive, evidencing the formation processes of chimeric entities, as well as the frequency of chimerism in natural Lessonia spicata populations. However, it is still unknown whether the chimerism in Lessonia species shows greater stress tolerance than those genetically homogeneous. As well as whether there the fitness is affected by to the number of individuals fused, and/or the level of kinship among the individuals that composed the chimera (e.g. fusion between siblings, half siblings, neighbors, different populations). In this context, the main objective of this study was evaluate the thermal stress tolerance of chimeric and unitary organism in the brown macroalgae L. spicata, which were cultivated under contrasting temperature conditions, different number of fused individuals and level of kinship. To this, firstly in this study generated a protocol for massive generation of plantlets with intraorganismal genetic variability of L. spicata in laboratory. Secondly, the stress tolerance was evaluated in terms of specific growth rate under contrasting temperature conditions (12 ± 2 °C vs 18 ± 2 °C) of chimeric plantlets with different numbers of individuals fused versus unitary ones. Thirdly, the effect of kinship on the chimera and thermal stress was evaluated by comparing growth rate between unitary individuals versus chimeras formed by local strains, and from different populations. The results indicate that chimeric plantlets resulting from the fusion of 5 sporophytes have a higher growth rate than the unitary plantlets under normal conditions (12°C). While under thermal stress (18°C) the chimeras have the higher growth rate. However, the significant differences depended on the density and kinship of the entities that made up the chimera and the culture temperature. In terms of 12 kinship, the results suggest that chimeras resulting from the fusion of sporophytes of unrelated plants have a higher growth rate than chimeras formed by half-sib brothers. Follow these results, it is possible to conclude that chimerism in the brown macroalga Lessonia spicata would confer an advantage to these organisms in face to continuous environmental changes. This fact acquires relevance if it is known that this species is constantly exposed to temperature changes produced by ENSO events, as well as the increase in the ocean temperature caused by climate change.
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Fraser, Geoffrey Alan. "Nonradial oscillations in Spica." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/24667.
Full textAbstract:
The absorption line profiles of Spica (α Virginis, HD116658, B1.5IV, m=0.97) show features, at about the 1% level, moving from the blue wavelengths towards the red wavelengths. A series of spectra were taken, at the 1.22 m telescope at the Dominion Astrophysical Observatory on three nights in April, 1982 and two nights in April, 1984, to study these moving features.
As Spica is a member of a binary system, the effect of the secondary had to be removed from the observations. This was done by subtracting a template spectrum which had been scaled, broadened and shifted to match the secondary, from each observation. The required shifts were determined using the orbital elements on blended nights and using the Fahlman-Glaspy small-shifts technique on unblended nights. An average of all the spectra was then subtracted from each observation. The resulting series of residuals clearly show the motion of the features seen in the line profiles.
The acceleration of the features was estimated to be between 0.0055 and 0.0068 kms⁻². Assuming the features are due to nonradial oscillations, this acceleration corresponds to waves moving slowly, about 5 to 20 kms⁻¹, in a prograde direction. The angular frequency of the oscillations, after accounting for the effects of rotation, would be about 3.4X10⁻⁵ rads⁻¹. A computer model that produces line profiles, under the assumption of a single nonradial oscillation, was used to produce profiles for comparison with observations. Using an [formula omitted]=8 and m=-8 mode, an intrinsic frequency of 3.4X10⁻⁵ rads⁻¹ and a stellar rotation rate of 190 kms⁻¹, the model produced profiles similar to those observed. The change in the model profiles with time was also similar to that observed.Science, Faculty of
Physics and Astronomy, Department of
Graduate
Books on the topic "Spicara"
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Usowicz, Aleksander. Zbieracze złotych kłosów: Spicarum aurearum collectores. Kraków: Wydawnictwo Instytutu Teologicznego Księży Misjonarzy, 2012.
Find full textBook chapters on the topic "Spicara"
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Lim, T. K. "Garcinia spicata." In Edible Medicinal And Non-Medicinal Plants, 125–27. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-1764-0_21.
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Bährle-Rapp, Marina. "Mentha spicata." In Springer Lexikon Kosmetik und Körperpflege, 348. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_6428.
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Azimova, Shakhnoza S., and Anna I. Glushenkova. "Actaea spicata L." In Lipids, Lipophilic Components and Essential Oils from Plant Sources, 650. London: Springer London, 2012. http://dx.doi.org/10.1007/978-0-85729-323-7_2125.
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Sastry, K. Subramanya, Bikash Mandal, John Hammond, S. W. Scott, and R. W. Briddon. "Liriope spicata (Lilyturf)." In Encyclopedia of Plant Viruses and Viroids, 1393–94. New Delhi: Springer India, 2019. http://dx.doi.org/10.1007/978-81-322-3912-3_534.
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Khare, C. P. "Wagatea spicata Dalz." In Indian Medicinal Plants, 1. New York, NY: Springer New York, 2007. http://dx.doi.org/10.1007/978-0-387-70638-2_1764.
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Khare, C. P. "Actaea spicata Linn." In Indian Medicinal Plants, 1. New York, NY: Springer New York, 2007. http://dx.doi.org/10.1007/978-0-387-70638-2_40.
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Azimova, Shakhnoza S., and Anna I. Glushenkova. "Thymbra spicata L." In Lipids, Lipophilic Components and Essential Oils from Plant Sources, 534. London: Springer London, 2012. http://dx.doi.org/10.1007/978-0-85729-323-7_1699.
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Azimova, Shakhnoza S., and Anna I. Glushenkova. "Thymus spicata L." In Lipids, Lipophilic Components and Essential Oils from Plant Sources, 543. London: Springer London, 2012. http://dx.doi.org/10.1007/978-0-85729-323-7_1736.
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Azimova, Shakhnoza S., and Anna I. Glushenkova. "Lepechinia spicata Willd." In Lipids, Lipophilic Components and Essential Oils from Plant Sources, 428. London: Springer London, 2012. http://dx.doi.org/10.1007/978-0-85729-323-7_1352.
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Azimova, Shakhnoza S., and Anna I. Glushenkova. "Mentha spicata L." In Lipids, Lipophilic Components and Essential Oils from Plant Sources, 436. London: Springer London, 2012. http://dx.doi.org/10.1007/978-0-85729-323-7_1382.
Full textConference papers on the topic "Spicara"
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Niemiec, Marcin. "THE CONTENT OF Zn, Co, AND Ba IN WATER AND SELECTED FISH ORGANS OF BLOTCHED PICAREL (SPICARA MAENA L.) AND HADDOCK (MERLANGIUS EUXMUS L.) FROM KARANTINNA AND BALAKLAVA BAYS IN THE AREA OF SEVASTOPOL." In 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings. STEF92 Technology, 2019. http://dx.doi.org/10.5593/sgem2019/3.1/s15.094.
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Kaya, Durmus Alpaslan, and Filiz Ayanoglu. "Oil glands number and oil glands diameters of Thymbra spicata var. Spicata L. leaves." In The 8th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2020. http://dx.doi.org/10.24264/icams-2020.ii.14.
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In the study, a genetic pool was created with plant samples taken from the locations where the Thymbra spicata var. spicata L. plant, which is culturally and economically important, grows densely in the province of Hatay. Plants were propagated with cuttings taken from these single plants. 213 plants were collected from 68 different locations for the genetic pool. The leaves of the plants in this gene pool were examined in terms of the number of essential oil glands per unit area and the diameter of the essential oil glands. The number of glands per unit area in plant leaves showed a wide variation and ranged from 5.61 to 56.04 pieces/mm². The diameters of the oil glands varied between 75.40 - 112.86 µm and the average diameter was determined as 94.09 µm. In the study, it was determined that some plants with low essential oil ratios such as Z144 and Z158 also have low oil glands number and oil glands diameter. It would be appropriate to evaluate these values obtained as preliminary knowledge together with future ontogenetic variability studies.
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Mavi, Kazim, Durmus Alpaslan Kaya, Musa Turkmen, and Filiz Ayanoglu. "The variation of essential oil and carvacrol contents of native grown Thymbra Spicata var. Spicata L." In The 8th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2020. http://dx.doi.org/10.24264/icams-2020.ii.18.
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In the study, it is aimed to create breeding lines of thyme (Thymbra spicata L.), which is important both culturally and economically, by selecting a single plant among the plants grown in different regions in Hatay. For this purpose, a genetic pool was created for Thymbra spicata L. plant in the plant samples taken from the locations where the plants are densely grown, and these plants were examined in terms of leaf characteristics, number of oil glands per unit area, oil gud size and essential oil components. Plants were propagated and preserved with cuttings taken from these single plants. In this study, which includes the pre-selection stage, 213 plants from 68 different locations were determined in the province of Hatay. The essential oil ratios of the plants varied between 0.70% and 3.90% and showed a wide variation. The rate of carvacrol, which is the main component of the essential oil of the thyme plant, was between 28.12% and 78.48%. Plants with code number Z14, Z3, Z25, Z38, Z77, Z104, Z35 and Z43 with an essential oil ratio of 3.5% and above and plants with code number Z167, Z165 and Z64 with a high carvacrol ratio were selected to be used in future breeding studies.
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Karacam, Meryem, and Durmus Alpaslan Kaya. "The effect of some essential oils on pathogenes that cause eczema." In The 8th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2020. http://dx.doi.org/10.24264/icams-2020.ii.13.
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In this study, the antimicrobial activity of essential oils obtained from Thymbra spicata L., Lavandula angustifolia Mill. and Myrtus communis L. on the pathogens causing eczema Staphylococcus aureus (ATCC 29213), Staphylococcus epidermidis (ATCC 12228), Escheria coli (ATCC 25922), Acinetobacter baumannii (ATCC 43498), Pseudomonas aeruginosa (ATCC 27853) ve Candida albicans (ATCC 90028) were investigated. The MIC and MBC values of the essential oils used in the study against the pathogens causing eczema were determined. As a result of the results obtained, antimicrobial activity of plant essential oils used in the study on test microorganisms was determined. Among the essential oils, it was found that the most effective essential oil was thyme followed by the lavender.
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Chang, Chii, Satish Narayana Srirama, and Sea Ling. "SPiCa." In the 13th International Conference. New York, New York, USA: ACM Press, 2014. http://dx.doi.org/10.1145/2677972.2677979.
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Yang, Minli, Rui Liang, and Yufen Zhang. "Bioactivities of extracts from Pedicularis Spicata on Plutella Xylostella." In International Conference on Medical Engineering and Bioinformatics. Southampton, UK: WIT Press, 2014. http://dx.doi.org/10.2495/meb140371.
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Shirahata, M., S. Matsuura, H. Matsuhara, T. Takagi, S. Oyabu, T. Wada, T. Nakagawa, et al. "SPICA Deep Cosmological Survey: From AKARI to SPICA." In SPICA joint European/Japanese Workshop. Les Ulis, France: EDP Sciences, 2009. http://dx.doi.org/10.1051/spica/200904012.
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Zhang, Na, Qing Qi Guo, and Xin Huai Zhao. "Enzyme Characteristics of Phytase from Spicaria Harting 26-13-4." In 2010 4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE 2010). IEEE, 2010. http://dx.doi.org/10.1109/icbbe.2010.5517223.
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NIETO-RAMIREZ, M. I., J. F. GARCIA-TREJO, A. A. FEREGRINO PEREZ, M. V. OVIEDO OLVERA, and M. M. TOVAR-RAMIREZ. "Elicitation effect on phenolic compounds and antioxidant activity in Mentha spicata." In 2018 XIV International Engineering Congress (CONIIN). IEEE, 2018. http://dx.doi.org/10.1109/coniin.2018.8489790.
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Onaka, Takashi, Itsuki Sakon, Hidehiro Kaneda, and Hideyuki Izumura. "Evolving Gas and Dust in the Galaxy and Galaxies to be seen by SPICA." In SPICA joint European/Japanese Workshop. Les Ulis, France: EDP Sciences, 2009. http://dx.doi.org/10.1051/spica/200903007.
Full textReports on the topic "Spicara"
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Croteau, R. [Regulation of terpene metabolism]. [Mentha piperita, Mentha spicata]. Office of Scientific and Technical Information (OSTI), January 1989. http://dx.doi.org/10.2172/6984924.
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Mercer, Charlene. Spatial Segregation of the Sexes in a Salt Marsh Grass Distichlis spicata (Poaceae). Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.173.
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Evans, Julie, Kendra Sikes, and Jamie Ratchford. Vegetation classification at Lake Mead National Recreation Area, Mojave National Preserve, Castle Mountains National Monument, and Death Valley National Park: Final report (Revised with Cost Estimate). National Park Service, October 2020. http://dx.doi.org/10.36967/nrr-2279201.
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Vegetation inventory and mapping is a process to document the composition, distribution and abundance of vegetation types across the landscape. The National Park Service’s (NPS) Inventory and Monitoring (I&M) program has determined vegetation inventory and mapping to be an important resource for parks; it is one of 12 baseline inventories of natural resources to be completed for all 270 national parks within the NPS I&M program. The Mojave Desert Network Inventory & Monitoring (MOJN I&M) began its process of vegetation inventory in 2009 for four park units as follows: Lake Mead National Recreation Area (LAKE), Mojave National Preserve (MOJA), Castle Mountains National Monument (CAMO), and Death Valley National Park (DEVA). Mapping is a multi-step and multi-year process involving skills and interactions of several parties, including NPS, with a field ecology team, a classification team, and a mapping team. This process allows for compiling existing vegetation data, collecting new data to fill in gaps, and analyzing the data to develop a classification that then informs the mapping. The final products of this process include a vegetation classification, ecological descriptions and field keys of the vegetation types, and geospatial vegetation maps based on the classification. In this report, we present the narrative and results of the sampling and classification effort. In three other associated reports (Evens et al. 2020a, 2020b, 2020c) are the ecological descriptions and field keys. The resulting products of the vegetation mapping efforts are, or will be, presented in separate reports: mapping at LAKE was completed in 2016, mapping at MOJA and CAMO will be completed in 2020, and mapping at DEVA will occur in 2021. The California Native Plant Society (CNPS) and NatureServe, the classification team, have completed the vegetation classification for these four park units, with field keys and descriptions of the vegetation types developed at the alliance level per the U.S. National Vegetation Classification (USNVC). We have compiled approximately 9,000 existing and new vegetation data records into digital databases in Microsoft Access. The resulting classification and descriptions include approximately 105 alliances and landform types, and over 240 associations. CNPS also has assisted the mapping teams during map reconnaissance visits, follow-up on interpreting vegetation patterns, and general support for the geospatial vegetation maps being produced. A variety of alliances and associations occur in the four park units. Per park, the classification represents approximately 50 alliances at LAKE, 65 at MOJA and CAMO, and 85 at DEVA. Several riparian alliances or associations that are somewhat rare (ranked globally as G3) include shrublands of Pluchea sericea, meadow associations with Distichlis spicata and Juncus cooperi, and woodland associations of Salix laevigata and Prosopis pubescens along playas, streams, and springs. Other rare to somewhat rare types (G2 to G3) include shrubland stands with Eriogonum heermannii, Buddleja utahensis, Mortonia utahensis, and Salvia funerea on rocky calcareous slopes that occur sporadically in LAKE to MOJA and DEVA. Types that are globally rare (G1) include the associations of Swallenia alexandrae on sand dunes and Hecastocleis shockleyi on rocky calcareous slopes in DEVA. Two USNVC vegetation groups hold the highest number of alliances: 1) Warm Semi-Desert Shrub & Herb Dry Wash & Colluvial Slope Group (G541) has nine alliances, and 2) Mojave Mid-Elevation Mixed Desert Scrub Group (G296) has thirteen alliances. These two groups contribute significantly to the diversity of vegetation along alluvial washes and mid-elevation transition zones.
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Health hazard evaluation report: HETA-95-0293-2655, Dana Corporation, Spicer Axle Division, Fort Wayne, Indiana. U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, October 1997. http://dx.doi.org/10.26616/nioshheta9502932655.
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