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	Provedor de dados Naturalis (1) Hornero (1) Autor Akani, Godfrey C. (1) Angelici, Francesco M. (1) Corti, Claudia (1) Frere,Esteban (1) Gandini,Patricia (1) García,M. Fernanda (1) Luiselli, Luca (1) Seco Pon,Juan P. (1) Mais... Palavra-chave Sexual size dimorphism (2) Argentina (1) Black-Browed Albatross (1) Cobras (1) Dietary habits (1) Discriminant Analysis (1) Ecology (1) Naja melanoleuca (1) Serpentes (1) Sexing (1) West Africa (1) Mais... Tipo do documento Article / Letter to the editor (1) Info:eu-repo/semantics/article (1) Ano 2009 (1) 2002 (1) País Argentina (1) Netherlands (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Sexual size dimorphism in Black-Browed Albatross (Diomedea melanophris) incidentally killed during longline operations Hornero Gandini,Patricia; Frere,Esteban; García,M. Fernanda; Seco Pon,Juan P.. Black-Browed Albatross (Diomedea melanophris) displays little sexual dimorphism and although males are usually larger than females, sexing birds by direct observation is difficult. We evaluated sexual size dimorphism in this species and provided a reliable method to predict the sex of measured birds. Discriminant Analysis of six morphometric measurements of adult birds indicated that only three variables (bill depth, head width and nape) were the most accurate variables to use in a discriminant function model, predicting sex with 87% of reliability. Tipo: Info:eu-repo/semantics/article Palavras-chave: Argentina; Black-Browed Albatross; Discriminant Analysis; Sexing; Sexual size dimorphism. Ano: 2009 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0073-34072009000100007 Is sexual size dimorphism in relative head size correlated with intersexual dietary divergence in West African forest cobras, Naja melanoleuca? Naturalis Luiselli, Luca; Akani, Godfrey C.; Corti, Claudia; Angelici, Francesco M.. Sex-biased differences in dietary habits of snakes are often linked to pronounced sexual size dimorphism in absolute body size or in relative head size. We studied the food habits of free-ranging forest cobras (Naja melanoleuca) in southern Nigeria to find whether any intersexual dietary divergence is present in this species, and measured both museum vouchers and freeranging specimens to find whether any intersexual divergence in relative head size is present. We demonstrated that: (1) head sizes increases more rapidly with SVL in females than in males, with a result that, at the same body length, the females tended to have significantly larger heads; (2) males and females were nearly identical in dietary habits, both if we consider prey size or prey type;... Tipo: Article / Letter to the editor Palavras-chave: Serpentes; Cobras; Naja melanoleuca; Dietary habits; Sexual size dimorphism; Ecology; West Africa. Ano: 2002 URL: http://www.repository.naturalis.nl/record/534295 Registros recuperados: 2 Primeira ... 1 ... Última

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