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	Provedor de dados Acta Amazonica (1) Anais da ABC (AABC) (1) Autor Heyer,W. Ronald (2) Hayek,Lee-Ann C. (1) Palavra-chave Effect size (1) Frogs (1) Measurement error index (1) Sexual dimorphism (1) Statistics (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2005 (1) 1976 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Notes on the frog fauna of the Amazon Basin Acta Amazonica Heyer,W. Ronald. Abstract The natural history of the frog fauna of the Amazon Basin is considered, based on data obtained from four major collections. Population structures in both forest and open environments are compared. Associations of species pairs in open formations are studied. It is estimated that at least 100 species are present in the Amazon Basin. Five speciation models are proposed to explain the high diversity of species. Ano: 1976 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671976000300369 Determining sexual dimorphism in frog measurement data: integration of statistical significance, measurement error, effect size and biological significance Anais da ABC (AABC) Hayek,Lee-Ann C.; Heyer,W. Ronald. Several analytic techniques have been used to determine sexual dimorphism in vertebrate morphological measurement data with no emergent consensus on which technique is superior. A further confounding problem for frog data is the existence of considerable measurement error. To determine dimorphism, we examine a single hypothesis (Ho = equal means) for two groups (females and males). We demonstrate that frog measurement data meet assumptions for clearly defined statistical hypothesis testing with statistical linear models rather than those of exploratory multivariate techniques such as principal components, correlation or correspondence analysis. In order to distinguish biological from statistical significance of hypotheses, we propose a new protocol that... Tipo: Info:eu-repo/semantics/article Palavras-chave: Statistics; Sexual dimorphism; Measurement error index; Effect size; Frogs. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652005000100005 Registros recuperados: 2 Primeira ... 1 ... Última

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