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Artykuły w czasopismach na temat "Amphibia"
Liando, Greace Kurniawati, Deidy Yulius Katili i Lalu Wahyudi. "KEANEKARAGAMAN AMPHIBIA DI KAMPUS UNIVERSITAS SAM RATULANGI". PHARMACON 8, nr 3 (28.08.2019): 601. http://dx.doi.org/10.35799/pha.8.2019.29337.
Pełny tekst źródłaGotkiewicz, Wojciech, Krzysztof Wittbrodt i Ewa Dragańska. "The Dynamics of Changes in the Amphibian (Amphibia) Population Size in the Masurian Landscape Park Monitoring Results of Spring Migration Monitoring from the Years 2011–2019". Environmental Protection and Natural Resources 31, nr 4 (1.12.2020): 8–16. http://dx.doi.org/10.2478/oszn-2020-0013.
Pełny tekst źródłaDesnitskiy, A. G. "Pregastrular Development of Amphibians: Ontogenetic Diversity and Eco-Devo". Онтогенез 54, nr 2 (1.03.2023): 125–38. http://dx.doi.org/10.31857/s0475145023020027.
Pełny tekst źródłaMarushchak, O., i O. Muravynets. "Morphological abnormalities in tailless amphibians (Amphibia, Anura) in Ukraine". Geo&Bio 2018, nr 16 (25.11.2018): 76–82. http://dx.doi.org/10.15407/gb.2018.16.076.
Pełny tekst źródłaHime, Paul M., Alan R. Lemmon, Emily C. Moriarty Lemmon, Elizabeth Prendini, Jeremy M. Brown, Robert C. Thomson, Justin D. Kratovil i in. "Phylogenomics Reveals Ancient Gene Tree Discordance in the Amphibian Tree of Life". Systematic Biology 70, nr 1 (30.06.2020): 49–66. http://dx.doi.org/10.1093/sysbio/syaa034.
Pełny tekst źródłaGrogan, Laura F., Josephine E. Humphries, Jacques Robert, Chantal M. Lanctôt, Catherine J. Nock, David A. Newell i Hamish I. McCallum. "Immunological Aspects of Chytridiomycosis". Journal of Fungi 6, nr 4 (19.10.2020): 234. http://dx.doi.org/10.3390/jof6040234.
Pełny tekst źródłaHetherington, Thomas E., i Justin R. Tugaoen. "Histochemical studies on the amphibian opercularis muscle (Amphibia)". Zoomorphology 109, nr 5 (lipiec 1990): 273–79. http://dx.doi.org/10.1007/bf00312194.
Pełny tekst źródłaPartridge, James W. "Persicaria amphibia (L. ) Gray (Polygonum amphibium L.)". Journal of Ecology 89, nr 3 (czerwiec 2001): 487–501. http://dx.doi.org/10.1046/j.1365-2745.2001.00571.x.
Pełny tekst źródłaVences, Miguel, i Jörn Köhler. "Global diversity of amphibians (Amphibia) in freshwater". Hydrobiologia 595, nr 1 (18.12.2007): 569–80. http://dx.doi.org/10.1007/s10750-007-9032-2.
Pełny tekst źródłaLang, M. A., J. S. Handler i H. Gainer. "Neurohypophysial peptide potencies in cultured anuran epithelia (A6)". American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 251, nr 1 (1.07.1986): R77—R81. http://dx.doi.org/10.1152/ajpregu.1986.251.1.r77.
Pełny tekst źródłaRozprawy doktorskie na temat "Amphibia"
Walsh, Denis M. "Systematics of the caecilians (Amphibia: Gymnophiona)". Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=75669.
Pełny tekst źródłaSantana, Érika Marques de. "Efeitos da poluição industrial sobre anuros (Amphibia) da Mata Atlântica". Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/41/41134/tde-14102013-110736/.
Pełny tekst źródłaThe contamination generated by industries in the municipality of Cubatão, in the coast of São Paulo state, has been causing damages to the structure of the surrounding Atlantic forest along the last decades. The Atlantic forest houses a high amphibian diversity and these animals may be good environmental indicators. The aim of this study was to detect possible effects of this contamination in frogs. Our hypothesis is that there is a gradient of contamination as the distance of the populations studied varied in relation to the source of pollution. Populations of Cycloramphus dubius (habitat specialist) and Rhinella ornate (habitat generalist) were sampled, in the regions, Mogi, Quilombo, and Itatinga, located at increasing distances from Cubatão. Each individual captured was submitted to measurements such as body mass and length, further used to calculate the body index (estimate of specimen body condition), besides measurements of the relative mass of organs and parasite load in lungs and intestine. These variables were compared among populations from different sampled areas. Specimen tissues and soil samples were tested for contaminant presence. At Mogi, the closest location from Cubatão, individuals of C. dubius and R. ornate presented larger liver and fat body mass for the same body index. In C. dubius, the Quilombo population, the intermediate location for pollution, presented smaller liver and fat body mass and larger loads of lung parasites. For R. ornate, the Mogi population presented larger liver, kidney and fat body mass, as well as larger spleen mass for the same parasite load. The locality where tissue and soil contamination was greater changed with contaminant type. This work presented conflicting results so that the hypothesized relationship between putative effects of contamination and distance from industries was not clear. Perhaps the constant water flow in the habitat of C. dubius does not allow pollutants to accumulate, and the differences found at Quilombo could be related to others factors of the species ecology. For R. ornate, perhaps differences found at Mogi reflect contamination from local sources. Finally, perhaps the contaminant analyses performed were not sufficient to demonstrate contamination differences among localities. Differently from expected, the generalist species seems to be more affected by contamination, showing the importance of considering species ecology in this kind of study.
Álvares, Guilherme Fajardo Roldão. "Sinais acústicos e visuais em Pithecopus azureus (Amphibia, Phyllomedusidae)". reponame:Repositório Institucional da UnB, 2017. http://repositorio.unb.br/handle/10482/31109.
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A teoria de seleção sexual surgiu para explicar as características sexuais secundárias dimórficas encontradas em muitos grupos animais. O dicromatismo sexual é uma forma de dimorfismo sexual, onde machos e fêmeas diferem em cor, ou em padrões de manchas no corpo. O dicromatismo sexual em anfíbios ocorre em pouco mais de 6% das espécies conhecidas, um valor que pode estar subestimado e ocorrer em diferentes grupos e com muito mais frequência do que se conhece. Pithecopus azureus é um anuro neotropical pertencente à Família Phyllomedusidae, conhecido por possuir cores vistosas como coloração dorsal verde e flancos conspícuos com coloração vermelho-alaranjado geralmente atribuído a aposematismo. No presente estudo descrevo a variação existente no espectro de reflectância do dorso e flanco, no padrão de manchas conspícuas no flanco e testo a hipótese de dicromatismo sexual na espécie. Os resultados mostram a reflectância do espectro não visível do ultravioleta e a existência de dicromatismo sexual no padrão de manchas dos flancos. Discuto as possíveis funções da coloração e o papel da seleção sexual na manutenção da variação do sinal e do dicromatismo sexual na espécie.
The theory of sexual selection originated to explain secondary sexual characteristics found in many animal taxa. Sexual dichromatism is a type of sexual dimorphism in which males and females differ in colors, or color patterns. In anurans, sexual dichromatism seems to occur in less than 6% of all known species; however, this number may be greatly underestimated and dichromatism could occur in many different species groups. Pithecopus azureus is a neotropical tree frog that belongs to the Family Phyllomedusidae, known for its bright green dorsal coloration, conspicuous reddish coloration on the flanks, both attributed to aposematism. In the present study, I describe in detail the variation of spectral color reflectance of flanks and back using a spectrophotometer and also describe color pattern variation on the flanks. I also test the hypothesis of sexual dichromatism in P. azureus. Results show reflectance of the non-visible spectrum of ultraviolet on the back and the first record of sexual dichromatism in the Family Phyllomedusidae. I discuss the possible functions of color in the species and suggest that sexual selection could be the main selective pressure responsible for the maintenance of signal variation and sexual dichromatism in the species.
Tufts, Bruce Laurie. "Ion exchange mechanisms for the control of volume and pH in fish and amphibian erythrocytes". Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/29443.
Pełny tekst źródłaScience, Faculty of
Zoology, Department of
Graduate
Cuéllar, Ferrada Andrea. "Direccionalidad de respuestas neuronales mesencefálicas en Eupsopbus calcaratus. (Amphibia-leptodactylidae)". Tesis, Universidad de Chile, 2009. http://repositorio.uchile.cl/handle/2250/131450.
Pełny tekst źródłaLos anuros utilizan señales acústicas extensamente; la localización de la fuente sonora permite a las hembras acercarse a los machos y también facilitaría a los machos responder a rivales. Sin embargo, en experimentos de campo, los machos de Eupsophus calcaratus responden indistintamente a estímulos provenientes de diferentes localizaciones. En esta memoria se estudió la direccionalidad de las respuestas de neuronas auditivas mesencefálicas y se comparó la actividad neural con la ausencia de direccionalidad conductual observada en el campo. Se registraron las respuestas de 61 neuronas auditivas mesencefálicas en 17 individuos (9 machos y 8 hembras) a estímulos provenientes de 7 ángulos en el plano horizontal, desde la posición 90° contralateral hasta 90° ipsilateral, respecto al hemisferio de registro, en intervalos de 30°. Las propiedades generales de respuesta de las neuronas mostraron que un 80,3 % respondieron con frecuencias características bajas, con un promedio de 200 Hz y un rango entre 100 y 400 Hz, y sólo un 19,7 % presentaron frecuencias características altas, con un promedio de 1400 Hz y un rango entre 1300 y 1700 Hz. Según el tipo de descarga en respuesta a los tonos puros, las neuronas registradas mostraron dos patrones temporales. Un grupo correspondió a neuronas tónicas, que respondían durante toda la presentación del estímulo (n=49; 80,3%). El otro grupo correspondió a neuronas fásicas, que descargaban con una o unas pocas espigas, generalmente al comienzo del estímulo (n=12; 19,7%). No hubo diferencias significativas en la direccionalidad de respuestas entre machos y hembras, por lo que los datos para ambos sexos fueron analizados en conjunto. Al presentar una llamada de advertencia sintetizada de la especie, consistente en un tono puro, 52,5 % de las neuronas respondió con más descargas a posiciones contralaterales, 36,1 % respondió con más descargas a posiciones laterales en ambos lados que a la posición frontal, y solo un 4,9 % respondió de manera no direccional. En respuesta a la llamada agresiva sintetizada, consistente en un estímulo pulsado, sólo 36,0 % de las neuronas 5 respondió preferencialmente a la posición contralateral, 32,0 % respondió con más descargas a ambas posiciones laterales en relación a la posición frontal y ninguna neurona respondió en forma no direccional. En respuesta a estímulos con igual estructura temporal al tono y al estímulo pulsado, pero sintetizados con ruido pasabanda en lugar de tonos, las neuronas respondieron en forma contralateral en una proporción similar al tono, pero la proporción de neuronas que respondieron preferencialmente a ambas posiciones laterales fueron alrededor de la mitad que en respuesta a los estímulos tonales y también la proporción de neuronas no direccionales fue baja, no sobrepasando un 10,0 % de la población registrada. La direccionalidad de las respuestas neuronales obtenidas en laboratorio, contrasta con la ausencia de direccionalidad en las respuestas conductuales observadas en el campo. Estos resultados indican que los machos de E. calcaratus están dotados de una capacidad auditiva que les permite localizar a potenciales rivales, pero responden similarmente a cantos provenientes de distintas posiciones, manteniendo una actividad vocal que facilitaría la atracción de hembras. Estas también poseen neuronas con respuestas direccionales que les facilitarían la localización de machos en las áreas reproductivas.
Presswell, Bronwen. "Morphological and molecular systematic studies of Asian caecilians (Amphibia: Gymnophiona)". Thesis, University of Glasgow, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270995.
Pełny tekst źródłaBravo, Roznowski José. "Direccionalidad de respuestas neuronales mesencefálicas en Pleurodema thaul (Amphibia- leptodactylidae)". Tesis, Universidad de Chile, 2008. http://repositorio.uchile.cl/handle/2250/133982.
Pełny tekst źródłaLos anfibios anuros utilizan extensamente las señales acústicas, siendo capaces de detectarlas, reconocerlas y localizarlas. La capacidad de localizar la fuente sonora permite a las hembras acercarse a los machos y aparearse. Además facilitaría a los machos responder a rivales. Sin embargo, en experimentos de campo, los machos de Pleurodema thaul responden indistintamente a estímulos provenientes de diferentes localizaciones. Exploramos la direccionalidad de las respuestas de neuronas auditivas mesencefálicas, para comparar la actividad neural con la ausencia de respuestas conductuales direccionales observada. Se registraron las respuestas de 62 neuronas auditivas mesencefálicas en 15 machos a estímulos provenientes de 7 ángulos en el plano horizontal, desde la posición 90° contralateral hasta 90° ipsilateral, respecto al hemisferio de registro, en intervalos de 30°. Un 45 % de las neuronas respondió direccionalmente a un estímulo de canto sintético con más descargas a la posición contralateral y 17 % respondió de manera no direccional. En respuesta a tonos puros, sólo 27 % de las neuronas respondió preferencialmente a la posición contralateral y un 41% en forma no direccional. La direccionalidad de las respuestas neuronales contrasta con la ausencia de direccionalidad en las respuestas conductuales. Estos resultados indican que los machos de P. thaul podrían localizar a potenciales rivales, pero responden similarmente a cantos provenientes de distintas posiciones, manteniendo una actividad vocal que facilitaría la atracción de hembras
Souza, Camila Camargo de. "An?lise filogen?tica de Gymnophiona M?ller, 1832 (Amphibia)". Pontif?cia Universidade Cat?lica do Rio Grande do Sul, 2016. http://tede2.pucrs.br/tede2/handle/tede/7723.
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Conselho Nacional de Pesquisa e Desenvolvimento Cient?fico e Tecnol?gico - CNPq
Gymnophiona M?ller, 1832?with 206 currently recognized species?is the least studied order within Amphibia. The phylogenetic relationships among its members have been historically unstable, with frequent taxonomic changes at the family level due to the recurrent presence of paraphyletic taxa. However, an increase of studies based on morphological and molecular data has built a scaffold of information about the evolutionary relationships among caecilians; even though, a phylogenetic classification of the order has remained a challenge. In 2011 a new taxonomy of Gymnophiona was proposed, where genera were arranged in nine families supposedly monophyletic. This taxonomy was not based on a phylogenetic analysis but on a consensus of the understanding of the evolutionary relationships of the group as inferred by previous studies. However, important conflicts exits among the results and type of analyses performed on these studies. Furthermore, only one study has included the known fossil taxon of Gymnophiona, which despite being fragmented is a valid source of evidence. Due to several and continuous efforts to generate data on caecilians, there is a wealth of hereditary characters available for phylogenetic studies. Thus, it has become crucial to perform a combined analysis of all these data (complete mitochondrial genomes, nuclear DNA sequences, phenotypic characters of extant and fossil taxa) to obtain a phylogenetic hypothesis that maximizes explanatory power. The objective of this study is to infer the evolutionary relationships of Gymnophiona based on a total evidence analysis using parsimony and dynamic homology to evaluate the current taxonomy of the group. Additionally, we also evaluate the effect of different types of alignment (tree versus similarity approaches), the influence of phenotypic characters on a dataset dominated by molecular characters, and the effect of coding indels as missing data. We compiled previously published phenotypic characters, DNA sequences available from GenBank of 47 nuclear and mitochondrial genes of all available taxa, and produced 42 new sequences. When comparing the results obtained from the tree-alignment analysis in POY with those of the similarity alignment in TNT, both recover Rhinatrematidae as sister of Ichthyophiidae + Teresomata. Within Rhinatrematidae, Epicrionops is paraphyletic in all analyses and the relationships within Ichthyophis are unsolved (a polytomy in the strict consensus). POY does not recovered Scolecomorphidae as the sister taxon of all other Teresomata but Typhlonectidae + Caeciliidae. Caecilia is paraphyletic with respect to Oscaecilia and Typhlonectes in relationship to Potamotyphlus. Scolecomorphidae is sister of Herpelidae + Chikilidae. The results of TNT recover a paraphyletic Herpelidae, with Herpele squalostoma sister of Chikilidae. Also, Siphonopidae is non-monophyletic. Indotyphlidae is non-monophyletic in both analyses and Idiocranium is consistently recovered as sister taxon of Dermophiidae. Dermophis is recovered as paraphyletic in the POY analysis, while both Dermophis and Gymnopis are paraphyletic in the TNT analysis. The strict consensus of the molecular dataset is highly congruous with that of the total evidence dataset; however, the former is better resolved (less polytomies), mainly within Indotyphlidae. The analysis of the phenotypic data alone resulted in a complete polytomy, illustrating the need of more research in this avenue. Coding indels as missing data did not cause important topological changes. The main conclusions derived from this study are: (i) the type of alignment of DNA sequences have an evident impact on the phylogenetic hypotheses of Gymnophiona; (ii) the apparent resolution on the evolutionary relationships of the extant supraspecific taxa of Gymnophiona and their monophyly presented in other studies are dependent on the exclusion of relevant evidence?taxa and characters?or the partial presentation of the optimal hypotheses; (iii) only a total evidence analysis allowed us to discover some of the potential cases of paraphyly or misidentification of vouchers; (iv) the phenotypic data currently used in the study of the evolutionary relationships of Gymnophiona contain important levels of non-congruent information and are not sufficient to place the fossil Eocaecilia micropodia within caecilians. This study reveals the need of detailed revision of the taxonomy and phylogeny of Gymnophiona.
Gymnophiona M?ller, 1832 ? a ordem menos estudada dentro de Amphibia, com 206 esp?cies conhecidas. As rela??es filogen?ticas do grupo permaneceram inst?veis por muito tempo, sofrendo com mudan?as no n?mero de fam?lias, devido ? constante presen?a de t?xons parafil?ticos. Uma crescente de estudos com produ??o de evid?ncias moleculares e morfol?gicas tem formado um arcabou?o de informa??es sobre as rela??es evolutivas do grupo. Mesmo assim, uma classifica??o filogen?tica de toda a ordem n?o representava uma tarefa f?cil. Em 2011, foi proposta uma classifica??o ao n?vel de fam?lia, onde os g?neros foram distribu?dos em nove fam?lias supostamente monofil?ticas. Essa proposta n?o foi baseada em uma an?lise filogen?tica, mas sim em um consenso do entendimento das rela??es filogen?ticas inferidas em estudos pr?vios, sendo muitos deles discordantes, tanto em tipos de an?lises, quanto em resultados. Apenas um estudo incluiu um t?xon f?ssil, que apesar de ser pouco representativo em quantidade, representa uma fonte v?lida de evid?ncia. Devido ao grande esfor?o para gerar dados e obter informa??es acerca dos Gymnophiona, existem in?meros caracteres heredit?rios dispon?veis. Dessa forma, percebe-se uma import?ncia em unir todos esses dados (genomas mitocondriais completos, sequ?ncias de genes nucleares, caracteres fenot?picos dos t?xons viventes e f?ssil) para compor uma nova proposta filogen?tica com o maior poder explicativo. Assim, o objetivo principal deste estudo foi inferir as rela??es evolutivas da ordem Gymnophiona em um contexto de evid?ncia total, sob an?lises de parcim?nia e homologia din?mica e avaliar a taxonomia atual de Gymnophiona com base na(s) ?rvore(s) mais parcimoniosa(s). Adicionalmente, avaliar o efeito de diferentes tipos de alinhamento, a influ?ncia de caracteres fenot?picos em um dataset dominado por dados gen?ticos e o efeito de codificar os indels como dados faltantes. Para isso foram compilados caracteres morfol?gicos de estudos pr?vios, sequ?ncias dispon?veis no GenBank, referentes a 47 genes (nucleares e mitocondriais) de todas as esp?cies dispon?veis, al?m da produ??o de 42 novas sequ?ncias. Comparando os resultados gerados a partir do alinhamento por ?rvore (POY) e do alinhamento por similaridade (TNT) encontramos Rhinatrematidae como grupo-irm?o de Ichthyophiidae + Teresomata. Dentro de Rhinatrematidae, Epicrionops foi recuperado parafil?tico em todas as an?lises e as rela??es dentro de Ichthyophiidae s?o uma politomia. A an?lise do POY n?o recupera Scolecomorphidae como t?xon-irm?o dos demais Teresomata, e sim Typhlonectidae + Caeciliidae. Caecilia ? parafil?tica a Oscaecilia, assim como Typhlonectes com rela??o a Potamotyphlus. Na an?lise via TNT, Herpelidae foi recuperada parafil?tica, com Herpele squalostoma agrupado com Chikilidae. Na an?lise do TNT, Siphonopidae n?o foi recuperada monofil?tica. A fam?lia Indotyphlidae foi n?o-monofil?tica em ambas as an?lises e Idiocranium foi recuperado como o t?xon-irm?o de Dermophiidae. Dermophis surge parafil?tico na an?lise do POY, enquanto que pelo TNT tanto Dermophis quanto Gymnopis surgen parafil?ticos. A topologia da ?rvore constru?da apenas com sequ?ncias de DNA, mostrou-se altamente semelhante ao consenso gerado pelo TNT, embora com alguns poucos clados melhor resolvidos, principalmente em Indotyphlidae. J? a an?lise unicamente morfol?gica restringiu-se a uma politomia total, o que pode ser justificado pela falta de caracteres morfol?gicos ?teis, e que tamb?m pode ser um reflexo da falta de conhecimento acerca deste tipo de evid?ncia. Quanto ? codifica??o de indels como quinto estado ou como dados faltantes, n?o foi observada vantagem sobre nenhum dos testes em rela??o ? topologia do consenso estrito. As principais conclus?es derivadas dos resultados obtidos s?o: (i) o tipo de alinhamento das sequ?ncias de DNA tem um impacto evidente nas hip?teses filogen?ticas; (ii) a aparente resolu??o da hist?ria evolutiva dos atuais t?xons supraespec?ficos de Gymnophiona e sua monofilia, apresentada em outros estudos, dependem da exclus?o de evid?ncia relevante das an?lises ou da apresenta??o parcial das hip?teses ?timas; (iii) s? a an?lise de evid?ncia total permitiu descobrir casos potenciais de parafilia ou identifica??o errada de terminais; (iv) os dados fenot?picos atualmente usados no estudo das rela??es evolutivas de Gymnophiona t?m altos n?veis de informa??o n?o congruente e n?o s?o suficentes para a inclus?o do t?xon f?ssil Eocaecilia micropodia dentro de Gymnophiona. O presente estudo revela a necessidade de uma revis?o detalhada da taxonomia e filogen?tica de Gymnophiona.
ESTUPIÑÁN-TRISTANCHO, Ruth Amanda. "Variação geográfica de Osteocephalus taurinus Steindachner, 1862 (Amphibia : Anura : Hylidae)". Universidade Federal do Pará, 2001. http://repositorio.ufpa.br/jspui/handle/2011/4159.
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Osteocephalus taurinus é uma espécie nominal de ampla distribuição na Amazônia e nos llanos do Orinoco. Sua grande variação morfológica indica que se trata de um complexo de espécies. O presente estudo examina a variação geográfica de vários caracteres morfológicos e morfométricos da espécie nominal, avalia a hipótese de tratar-se de fato um complexo de espécies; e testa a teoria da atual distribuição das formas, através de padrões biogeográficos, ecológicos e de regímen de precipitação já definidos. A partir de 431 espécimes estudados foram selecionadas 16 populações, nas quais foram analisados 20 caracteres anatômicos internos, 14 caracteres morfométricos e seis caracteres morfológicos externos. Através de análises estatística e mapas de isolinhas evidenciou-se que O. taurinus não se trata de um complexo de espécies e sim possui uma grande variação intra e interpopulacional das caraterísticas morfométricas e morfológicas. Simultaneamente, foram observados caracteres anatômicos internos polimórficos. O primeiro componente obtido através de uma análise de componentes principais mostra uma variação clinal do tamanho corporal ao longo da distribuição geográfica total, mais evidente nos machos. Em outros caracteres analisados, a variação fico independente do cline. O padrão espacial do tamanho indicou que as formas maiores ocorrem nas terras baixas da Amazônia, onde a vegetação de floresta ombrofila divide as áreas de cerrado ao norte e ao sul do continente sul americano. Nestas últimas áreas, ocorrem com maior intensidade as formas menores. Esta distribuição espacial não se explicou através das divisões propostas por outros autores para Amazônia, o que pode ser devido a um mascaramento gerado pela grande variação intrapopulacional. O modelo espacial do tamanho corporal de O. taurinus não corresponde a um padrão de isolamento por distância, o que pode sugerir que a colonização da espécie em algumas áreas seja recente. Este estudo confirma a hipótese da origem do gênero no início do Plioceno, o que indica que O. taurinus teria tido tempo suficiente para se dispersar antes do surgimento dos Andes como barreira geográfica.
Osteocephalus taurinus is an Amazonian and Orinochian nominal species with a wide geographic distribution. Its great morphologic variation has suggested that O. taurinus is in fact a species complex. This study examines the geographic variation of morphometric and morphologic characters. The species complex hypothesis is tested. Simultaneously, in order to explain the present body form distribution by biogeographic, rainfall and ecological patterns previously established for Amazonia, these patterns were assessed. From total 431 specimens studied, 16 populations were selected for analysis 20 of inner anatomic structures, 14 morphometric and 6 morphologic external characteres. Statistical analyses and isoline maps indicated that O. taurinus not is a especies complex and exist a interpopulation and intrapopulation variation on the morphometry and morphology of O. taurinus. Polymorphic anatomical characters ocurrs in this species. The first axis of a principal component analysis showed a clinal variation of body size along the entire geographic distribution was most plainly evident in males. Clinal variaton in other characters studied was independent of cline. Spatial size distribution indicated the largest specimens occur in the Amazon lands low, where rainforest vegetation divides savanna areas to the north and south of South America. These two last areas more often presented the smaller forms. In this study, the distribution observed for O. taurinus was not explained by traditional divisions of Amazonia, and suggest some noise generated by high intrapopulational variation. This spatial model of O. taurhius body size did not show a pattern of isolation by distance, which may suggest a recent arca colonization by this species. Simultaneusly, the study confirms the early Pliocenic origin hypothesis for Osteocephalus, which allowed O. taurinus had time to disperse before the Andes emerged as a geographical barrier.
Scheltinga, David Michael. "Ultrastructure of spermatozoa of the amphibia : phylogenetic and taxonomic implications /". [St. Lucia, Qld.], 2002. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16839.pdf.
Pełny tekst źródłaKsiążki na temat "Amphibia"
Max, King, red. Animal cytogenetics.: Amphibia. Berlin: Gebrüder Borntraeger, 1990.
Znajdź pełny tekst źródłaInternational, Symposium on Biology and Physiology of Amphibians (1st 1988 Karlsruhe Germany). Symposium, Biology and Physiology of Amphibians: Karlsruhe, Aug. 31-Sept. 3. [Karlsruher, Germany: s.n., 1988.
Znajdź pełny tekst źródłaInternational, Symposium on Biology and Physiology of Amphibians (1st 1988 Karlsruhe Germany). Biology and physiology of amphibians: Proceedings of the First International Symposium on Biology and Physiology of Amphibians, held at Karlsruhe, Federal Republic of Germany, August 31-September 3, 1988. Stuttgart: G. Fischer, 1990.
Znajdź pełny tekst źródłaScoccianti, Carlo. Amphibia, aspetti di ecologia della conservazione: Amphibia, aspects of conservation ecology. Firenze: Guido Persichino grafica, 2001.
Znajdź pełny tekst źródłaПисанец, Евгений Максимович. Хвостатые земноводные: Хвостатi земноводнi = The tailed amphibians : (Amphibia: Caudata) : каталог коллекций. Киев: Зоологический музей ННПМ НАН Украины, 2003.
Znajdź pełny tekst źródłaSŏ-yŏng, Yang, red. Hanʼguk ŭi yangsŏryu: Monograph of Korean amphibia. Sŏul Tʻŭkpyŏlsi: Akʻademi Sŏjŏk, 2001.
Znajdź pełny tekst źródłaPillai, R. S. Gymnophiona (Amphibia) of India: A taxonomic study. Wyd. 2. Kolkata: Zoological Survey of India, 2005.
Znajdź pełny tekst źródłaPillai, R. S. Gymnophiona (Amphibia) of India: A taxonomic study. Calcutta: Zoological Survey of India, 1999.
Znajdź pełny tekst źródłaIndonesia. Direktorat Perlindungan dan Pengawetan Alam., red. Pedoman pengelolaan satwa langka: Mammalia, reptilia, dan amphibia. Bogor: Direktorat Jenderal Kehutanan, Direktorat Perlindungan dan Pengawetan Alam, 1989.
Znajdź pełny tekst źródłaMaxson, Linda R. Molecular systematics of the frog genus Leptodactylus (Amphibia: Leptodactylidae). Chicago: Field Museum of Natural History, 1988.
Znajdź pełny tekst źródłaCzęści książek na temat "Amphibia"
Habermehl, Gerhard G. "Amphibia (Amphibien)". W Gift-Tiere und ihre Waffen, 125–43. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-57925-7_6.
Pełny tekst źródłaHabermehl, Gerhard G. "Amphibia (Amphibien)". W Gift-Tiere und ihre Waffen, 108–25. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-662-07493-0_7.
Pełny tekst źródłaMossman, Harland W. "Amphibia". W Vertebrate Fetal Membranes, 22–26. London: Macmillan Education UK, 1987. http://dx.doi.org/10.1007/978-1-349-09065-5_3.
Pełny tekst źródłaClauss, Wolfgang, i Cornelia Clauss. "Amphibia". W Taschenatlas Zoologie, 310–15. Berlin, Heidelberg: Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-61593-5_41.
Pełny tekst źródłaClauss, Wolfgang, i Cornelia Clauss. "Amphibia". W Taschenatlas Zoologie, 310–15. Berlin, Heidelberg: Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-61593-5_41.
Pełny tekst źródłaPinheiro, Sérgio Rangel. "Class Amphibia (Amphibians): Frogs, Toads". W Biology, Medicine, and Surgery of South American Wild Animals, 1–8. Ames, Iowa, USA: Iowa State University Press, 2008. http://dx.doi.org/10.1002/9780470376980.ch1.
Pełny tekst źródłaAx, Peter. "Amphibia — Amniota". W Multicellular Animals, 223–26. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-662-08874-6_32.
Pełny tekst źródłaStreble, Heinz, i Annegret Bäuerle. "Lurche – Amphibia". W Histologie der Tiere, 153–61. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-53160-0_26.
Pełny tekst źródłaStorch, Volker, i Ulrich Welsch. "Amphibia, Lurche". W Kükenthal Zoologisches Praktikum, 372–92. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41937-9_13.
Pełny tekst źródłaBentley, Peter J. "The Amphibia". W Zoophysiology, 155–86. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-662-05014-9_6.
Pełny tekst źródłaStreszczenia konferencji na temat "Amphibia"
Gherasim, Elena, Dumitru Erhan, Stefan Rusu, Maria Zamornea i Nina Talambuta. "Specificitatea organică a trematodelor la amfibieni (Amphibia:Ranidae)". W International Symposium "Actual problems of zoology and parasitology: achievements and prospects". Institute of Zoology, 2017. http://dx.doi.org/10.53937/9789975665902.27.
Pełny tekst źródłaAdrović, Avdul, Edina Hajdarević, Alen Bajrić i Ernad Kucalović. "BIODIVERZITET VODOZEMACA (KLASA: AMPHIBIA) SJEVEROISTOČNE BOSNE". W XXVII savetovanje o biotehnologiji. University of Kragujevac, Faculty of Agronomy, 2022. http://dx.doi.org/10.46793/sbt27.333a.
Pełny tekst źródłaCozari, Tudor, i Elena Gherasim. "Complexul ranidelor verzi – model de formare a unor specii de amfibieni pe cale hibridogena". W Impactul antropic asupra calitatii mediului. Institute of Ecology and Geography, Republic of Moldova, 2019. http://dx.doi.org/10.53380/9789975330800.18.
Pełny tekst źródłaGherasim, Elena. "Ranidele verzi (Amphibia: Ranidae), bio-indicatori ai ecosistemelor acvatice". W International Symposium "Actual problems of zoology and parasitology: achievements and prospects". Institute of Zoology, 2017. http://dx.doi.org/10.53937/9789975665902.26.
Pełny tekst źródłaNakauchi, Kiyohide, Kentaro Ishizu, Homare Murakami, Akihiro Nakao i Hiroshi Harada. "AMPHIBIA: A Cognitive Virtualization Platform for End-to-End Slicing". W ICC 2011 - 2011 IEEE International Conference on Communications. IEEE, 2011. http://dx.doi.org/10.1109/icc.2011.5962961.
Pełny tekst źródłaHurey, David R., Scott C. McKenzie, Andrew J. Wendruff i John Spina. "A SURVEY OF THE PENNSYLVANIAN AMPHIBIA OF THE LINTON, OHIO LAGERSTATTE". W Joint 52nd Northeastern Annual Section and 51st North-Central Annual GSA Section Meeting - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017ne-290564.
Pełny tekst źródłaRocha, Roberto Meira Pires, i Maria Lúcia Del-Grande. "BIOLOGIA REPRODUTIVA DE PHYLLOMEDUSA BAHIANA A. LUTZ, 1925 (PHYLLOMEDUSIDAE, ANURA, AMPHIBIA)". W I Congresso Nacional On-line de Conservação e Educação Ambiental. Revista Multidisciplinar de Educação e Meio Ambiente, 2021. http://dx.doi.org/10.51189/rema/1687.
Pełny tekst źródłaGherasim, Elena, Dumitru Erhan, Stefan Rusu, Ion Gologan, Liubovi Lebedenco, Anastasia Ivanova, Andrei Cebotari i Dmitri Vatavu. "Diversitatea faunei helmintice a speciei Pelophylax Ridibundus (Amphibia, Ranidae) în funcție de factorii sezonieri". W International symposium ”Functional ecology of animals” dedicated to the 70th anniversary from the birth of academician Ion Toderas. Institute of Zoology, Republic of Moldova, 2019. http://dx.doi.org/10.53937/9789975315975.41.
Pełny tekst źródłaErhan, Dumitru, i Elena Gherasim. "Parametrii morfometrici ai speciei Acanthocephalus Ranae Schrank, 1788 (Acanthocephala) depistată la specimenele complexului Pelophylax Esculenta (Amphibia)". W International symposium ”Functional ecology of animals” dedicated to the 70th anniversary from the birth of academician Ion Toderas. Institute of Zoology, Republic of Moldova, 2019. http://dx.doi.org/10.53937/9789975315975.39.
Pełny tekst źródłaUlyakhin, Anton V. "LITHOFACIES OF A BONE DEPOSITS WITH PLATYOPOSAURUS (AMPHIBIA, TEMNOSPONDYLI) FAUNA OF THE MIDDLE PERMIAN OF EASTERN EUROPE". W Treshnikov readings – 2022 Modern geographical global picture and technology of geographic education. Ulyanovsk State Pedagogical University named after I. N. Ulyanov, 2022. http://dx.doi.org/10.33065/978-5-907216-88-4-2022-285-286.
Pełny tekst źródłaRaporty organizacyjne na temat "Amphibia"
Брошко, Євгеній Олегович. Variability of Structural and Biomechanical Prameters of Pelophylax esculentus (Amphibia, Anura) Limb Bones. Vestnik zoologii, 2014. http://dx.doi.org/10.31812/0564/1529.
Pełny tekst źródłaChestnut, Tara. Spatial and Temporal Patterns of Amphibian Chytrid Fungus Batrachochytrium Dendrobatidis Occupancy in Amphibian Habitats. Portland State University, styczeń 2013. http://dx.doi.org/10.15760/mem.13.
Pełny tekst źródłaGillespie, T. C., S. M. Lesher, P. D. Miner i B. P. Cyr. Composite Warfare and The Amphibians. Fort Belvoir, VA: Defense Technical Information Center, marzec 1992. http://dx.doi.org/10.21236/ada272337.
Pełny tekst źródłaBozek, Michael, i Tani Hubbard. Greater Yellowstone Network amphibian monitoring protocol science review: A summary of reviewers’ responses. National Park Service, czerwiec 2022. http://dx.doi.org/10.36967/nrr-2293614.
Pełny tekst źródłaSurdyk, Shelby, Carolyn Furbish, Jennifer Larsen i Mary Hake. Amphibian surveys at Klondike Gold Rush NHP: 2019 summary. National Park Service, lipiec 2022. http://dx.doi.org/10.36967/2293389.
Pełny tekst źródłaCasper, Gary, Stefanie Nadeau i Thomas Parr. Acoustic amphibian monitoring, 2019 data summary: Isle Royale National Park. National Park Service, grudzień 2022. http://dx.doi.org/10.36967/2295506.
Pełny tekst źródłaCasper, Gary, Stefanie Nadeau i Thomas Parr. Acoustic amphibian monitoring, 2019 data summary: Sleeping Bear Dunes National Lakeshore. National Park Service, grudzień 2022. http://dx.doi.org/10.36967/2295512.
Pełny tekst źródłaCasper, Gary, Stefanie Nadeau i Thomas Parr. Acoustic amphibian monitoring, 2019 data summary: Indiana Dunes National Park. National Park Service, grudzień 2022. http://dx.doi.org/10.36967/2295493.
Pełny tekst źródłaCasper, Gary, Stefanie Nadeau i Thomas Parr. Acoustic amphibian monitoring, 2019 data summary: Grand Portage National Monument. National Park Service, grudzień 2022. http://dx.doi.org/10.36967/2295459.
Pełny tekst źródłaCasper, Gary, Stefanie Nadeau i Thomas Parr. Acoustic amphibian monitoring, 2019 data summary: Apostle Islands National Lakeshore. National Park Service, grudzień 2022. http://dx.doi.org/10.36967/2295171.
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