La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Sexual Dimorphism and Seasonal Variability of Shield Size in the Endangered Hawaiian Coot (Fulica alai) (2019)
Auteurs :	Randi A. Riggs, Auteur ; Andrew D. Taylor, Auteur ; Robert C. Thomson, Auteur ; Robert H. Cowie, Auteur
Type de document :	Article
Dans :	Waterbirds (42(1) March, 2019)
Article en page(s) :	70-77
Résumé :	The endangered Hawaiian Coot (Fulica alai) is one of few native waterbird species remaining in Hawaii, USA. On the island of Oahu, 56 adults were captured and sexed using a molecular method, and sexual dimorphism, seasonal variation in shield size (possibly sexually selected), and use of morphometrics to predict sex as an alternative to molecular sexing were investigated. The sex ratio was significantly male biased: 39 males, 17 females (P = 0.003). No morphometric character assessed independently differed significantly between sexes (0.056

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