Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Genet. Mol. Biol. (1) Iheringia, Sér. Zool. (1) Autor Fornel,Rodrigo (2) Cordeiro-Estrela,Pedro (1) Decian,Vanderlei S. (1) Estevan,Cassiano (1) Hepp,Luiz U. (1) de Freitas,Thales Renato O. (1) Mais... Palavra-chave Agriculture (1) Anthropization (1) Cranium (1) Geometric morphometrics (1) Land-use (1) Limnological factors (1) Phenotypic evolution (1) Stream morphometry (1) Subterranean rodent (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2018 (2) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Skull shape and size variation within and between mendocinus and torquatus groups in the genus Ctenomys (Rodentia: Ctenomyidae) in chromosomal polymorphism context Genet. Mol. Biol. Fornel,Rodrigo; Cordeiro-Estrela,Pedro; de Freitas,Thales Renato O.. Abstract We tested the association between chromosomal polymorphism and skull shape and size variation in two groups of the subterranean rodent Ctenomys. The hypothesis is based on the premise that chromosomal rearrangements in small populations, as it occurs in Ctenomys, produce reproductive isolation and allow the independent diversification of populations. The mendocinus group has species with low chromosomal diploid number variation (2n=46-48), while species from the torquatus group have a higher karyotype variation (2n=42-70). We analyzed the shape and size variation of skull and mandible by a geometric morphometric approach, with univariate and multivariate statistical analysis in 12 species from mendocinus and torquatus groups of the genus Ctenomys.... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cranium; Geometric morphometrics; Phenotypic evolution; Subterranean rodent. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572018000200263 Does the landscape surrounding streams affect the occurrence of freshwater crabs? A case study of the genus Aegla (Crustacea: Decapoda: Anomura) in subtropical basins Iheringia, Sér. Zool. Estevan,Cassiano; Hepp,Luiz U.; Decian,Vanderlei S.; Fornel,Rodrigo. ABSTRACT Changes in the landscape where watersheds are located may affect the stream biota in different ways. In order to explore this idea, we collected freshwater crabs of the genus Aegla Leach, 1820 in subtropical region of southern Brazil. We also measured a number of landscape features and physico-chemical variables in the collection streams and surroundings in order to ascertain which factors affect the occurrence of these crustaceans. A total of 167 individuals of Aegla were collected in 21 streams. The collection was comprised of three species: A. odebrechtii, A. platensis, and A. singularis. The occurrence of A. platensis was influenced by physico-chemical variables (total carbon and total organic carbon) and stream morphometry factors (level... Tipo: Info:eu-repo/semantics/article Palavras-chave: Limnological factors; Stream morphometry; Land-use; Anthropization; Agriculture. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212018000100224 Registros recuperados: 2 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco