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近期或近期的生态或环境机制上。被忽视的是行为的决定因素，这些决定因素在本质上是遗传的，在系统发育上是携带的，这些决定因素存在于被研究的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育的方法来研究新热带栖息鸟类科廷加在繁殖和社会行为方面进化变化的历史途径。将利用针尖和骨骼形态的新特征以及传统的羽毛特征来构建一个关于大约90种新热带冠蚁之间系统发育关系的可靠假设；在巴西的合作实地工作将为这项研究的大部分工作提供新的标本。这一系统发育假说将用于分析社会行为和交配系统的种间变异模式，并比较检验关于性别颜色差异、性别大小差异和显示行为同源性的几种假设。该项目有助于鸟类系统学和鸟类系统发育、行为学和行为研究的综合。

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.