Reproductive Strategies of Brazilian Lizards of the Genus Tropidurus Rodrigues, 1987 (Squamata, Tropiduridae) in the Temporal and Spatial

Página do item simplificado
dc.contributor.authorFerreira, Adelina
dc.contributor.authorKihara, Virginia Ojeda
dc.contributor.authorMehanna, Mahmoud [UNESP]
dc.contributor.institutionUniversidade Federal de Mato Grosso (UFMT)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:31:03Z
dc.date.available2014-05-20T15:31:03Z
dc.date.issued2011-01-01
dc.description.abstractReproductive strategy is the set of adaptations that promote the most efficient way that the species will survive under the particular conditions of a determined environment. Understanding these adaptations is important and can help pinpoint populations indicator of environmental changes. Spermatogenesis is a measurable biological process of these adaptations in spatial and temporal scales. We analyzed the morphology of the testes and oviducts of the lizard species that comprise the genus Tropidurus, taking into account the geographical distribution and sympatric relations. For the analysis and the testes were removed from the middle part of the oviducts from Tropidurus etheridge, T oreadicus, T itambere, T spinulosus and T Guarani species, collected in different places in the Mato Grosso state, Brazil. The reproductive period is synchronous for males and females and occurs in September, October and November. Reproductive males were characterized. In the testes are seminiferous tubules with germ cells at different stages of spermatogenesis, with a high epithelium, at present light, free spermatozoa in the lumen and reduction of interstitial tissue. For females, the reproduction peak occurs when the oviduct epithelium is high with secretions and basal nucleus. These months are characterized in the sampled areas over a period of heavy rain and high temperatures. The decline of reproductive period was observed in both sexes, between April and August. Low reproduction in males is characterized by ample light, absence of sperm, only germ cells in the early stages of spermatogenesis are observed (a few spermatogonia and spermatocytes) and interstitial tissue wide. In females, the period of reproductive decline is marked by the absence of unicellular glands in the oviduct epithelium, with higher affinity with the dye. This period corresponds to low rainfall periods and lower temperatures. We propose an analysis of zoological samples; this is a proposal to facilitate the work of many researchers through access to the species, especially rare species.en
dc.description.affiliationUniv Fed Mato Grosso UFMT, Depto Biol & Zool, IB, UFMT, BR-78060900 Cuiaba, MT, Brazil
dc.description.affiliationUniv Estadual Paulista Julio de Mesquita Filho UN, Botucatu, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista Julio de Mesquita Filho UN, Botucatu, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de Mato Grosso (FAPEMAT)
dc.description.sponsorshipIdFAPEMAT: 737194/2008
dc.format.extent1414-1421
dc.identifierhttp://dx.doi.org/10.4067/S0717-95022011000400058
dc.identifier.citationInternational Journal of Morphology. Temuco: Soc Chilena Anatomia, v. 29, n. 4, p. 1414-1421, 2011.
dc.identifier.fileS0717-95022011000400058.pdf
dc.identifier.issn0717-9502
dc.identifier.scieloS0717-95022011000400058
dc.identifier.urihttp://hdl.handle.net/11449/40293
dc.identifier.wosWOS:000302190500058
dc.language.isoeng
dc.publisherSoc Chilena Anatomia
dc.relation.ispartofInternational Journal of Morphology
dc.relation.ispartofjcr0.336
dc.relation.ispartofsjr0,207
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectReproductive cycleen
dc.subjectLizardsen
dc.subjectBrazilen
dc.titleReproductive Strategies of Brazilian Lizards of the Genus Tropidurus Rodrigues, 1987 (Squamata, Tropiduridae) in the Temporal and Spatialen
dc.typeArtigo
dcterms.rightsHolderSoc Chilena Anatomia

Arquivos

Pacote Original
Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
S0717-95022011000400058.pdf
Tamanho:
1.67 MB
Formato:
Adobe Portable Document Format
Descrição:
Baixar
Licença do Pacote
Agora exibindo 1 - 2 de 2
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:

Coleções

Artigos