Phylogeny and Social Behavior Evolution of the Cotingas (Aves: Cotingidae)

9318273 PRUM对脊椎动物繁殖系统和社会行为的研究主要集中在可以被贴上生态或环境标签的近期或最近的机制上。被忽视的是行为的决定因素，这些决定因素在性质上是遗传的，在系统发育上是根深蒂固的，这存在于所研究物种群体的最近共同祖先中。堪萨斯大学的理查德·普鲁姆博士将使用系统发生学方法，研究新热带栖息鸟类科廷加不同谱系在繁殖和社会行为方面进化变化的历史路径。新的伞形和骨骼形态特征和传统的羽毛特征将被用来构建一个关于大约90种新热带Cotingis之间的系统发育关系的稳健假说；在巴西的合作实地工作将为这项研究的大部分提供新的标本。这一系统发育假说将被用来分析社会行为和交配系统的物种间变异模式，并比较检验几种关于性别颜色差异、性别大小差异和显示行为同源性的假设。该项目对鸟类系统学和鸟类的系统发育、行为学和行为研究的综合研究做出了贡献。

9318273 Prum Studies of vertebrate breeding systems and social behavior have focused largely on near-term or proximate mechanisms that can be labelled ecological or environmental. Neglected have been determinants of behavior that are genetic in nature and entrained phylogenetically, that is present in recent common ancestors of the group of species under study. Dr. Richard Prum of the University of Kansas will use phylogenetic methods to investigate the historical pathways of evolutionary change in aspects of breeding and social behavior in a diverse lineage of neotropical perching birds, the cotingas. New characters of syringeal and skeletal morphology and traditional plumage features will be used to construct a robust hypothesis of phylogenetic relationships among the ca. 90 species of neotropical cotingids; collaborative field work in Brasil will provide new specimens for much of this research. This hypothesis of phylogeny will be used to analyze patterns of interspecies variation in social behavior and mating systems and to test comparatively several hypotheses about sexual color differences, sexual size differences, and display behavior homologies. The project contributes to avian systematics and to the synthesis of phylogenetic, ethological, and behavioral research on birds.