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Título

Avian body sizes in relation to fecundity, mating system, Display behavior, and resource sharing

AutorLislevand, Tejer; Figuerola, Jordi ; Székely, Tamás
Palabras claveallometry
birds
body size
clutch size
egg size
mating systems
niche separation
sexual display
sexual selection
sexual size dimorphism
Fecha de publicaciónjun-2007
EditorEcological Society of America
CitaciónEcology, 88(6), 2007, p. 1605
ResumenBody size is an important characteristic of animals, influencing physiology, life histories, and general ecology. Hence, it often needs to be taken into account even if the aim is to test for relationships among other traits. We provide a comprehensive data set on avian body sizes that would be useful for future comparative studies of avian biology. We extracted species-specific measurements on male and female body mass, wing length, tarsus length, bill length, and tail length from major ornithological text books and some other sources covering bird species of Africa, Australia, New Zealand, Antarctica, North America, and the western Palearctic. These measurements were matched with measures of egg and clutch sizes, and scores of mating system, sexual display agility, and the degree of intersexual resource division. We present morphometric data ranging from 2350 species (minimum, tail length) to 2979 species (maximum, wing length) where measurements for both sexes are known, some additional data where only one sex or unsexed birds have been measured, and explanatory data ranging from 1218 species (minimum, display agility) to 2603 species (maximum, egg mass). In total, 3769 species from 125 of 146 different bird families are included. We have used the data in comparative studies of avian sexual size dimorphism, where we test adaptive hypotheses concerning the influence of sexual selection, fecundity, and the degree of within-pair resource sharing. By publishing the data we intend to give easy access to a large data set containing variables relevant for a wide range of comparative studies on birds, thus saving researchers from the time- and resource-consuming data gathering process. In addition, the data set will function to point out species where baseline data on body size and relevant information on reproduction and behavior are currently lacking or of poor quality, thus stimulating the publication of such data.
Versión del editorhttp://dx.doi.org/10.1890/06-2054
URIhttp://hdl.handle.net/10261/43264
DOI10.1890/06-2054
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