干旱区生态环境知识资源中心(Arid): Insectivorous birds in the Neotropics: Ecological radiations, specialization, and coexistence in species-rich communities

Arid

DOI	10.1093/auk/ukaa049
	Insectivorous birds in the Neotropics: Ecological radiations, specialization, and coexistence in species-rich communities
	Sherry, Thomas W.; Kent, Cody M.; Sanchez, Natalie, V; Sekercioglu, Cagan H.
通讯作者	Sherry, TW (corresponding author), Tulane Univ, Dept Ecol & Evolutionary Biol, New Orleans, LA 70118 USA.
来源期刊	AUK
ISSN	0004-8038
EISSN	1938-4254
出版年	2020
卷号	137 期号:4
英文摘要	Insectivorous birds reach their highest diversity in the tropics and represent a striking variety of morphological and behavioral specializations for foraging, yet explanations for these patterns are inadequate because of both our limited understanding of the drivers of ecological diversification within and among clades and of coexistence mechanisms in particular. Here we synthesize recent information on Neotropical insectivorous birds, including their diversity, evolutionary ages and locations of origin, phylogenies, and both competitive and predator-prey species interactions. We propose a novel evolutionary hypothesis for the origin and coexistence of the phenotypic diversity of insectivore foraging morphologies in species-rich communities, based on their extraordinary food-resource specializations. Specifically, we develop the Biotic Challenge Hypothesis to explain the evolution of these specializations, and we provide preliminary evidence in support of this hypothesis based on a synopsis of both Neotropical insectivore specializations by family and arthropod antipredator adaptations by category. We argue that, from the perspective of tropical insectivorous birds, and particularly in the most species-rich, mainland Neotropical communities, the environment is an arthropod desert. Coexistence with all of the other insectivores requires feeding specialization to compete exploitatively and diffusely against evolutionarily diverse species and far less frequently against sister species. The arthropod desert arises primarily because of (1) the tactical diversity of arthropod predators as insectivore competitors and (2) the evolutionary arms races involving arthropod predators with their prey, which render many arthropods inaccessible to most insectivorous predators. Our idea provides an explicit mechanism for pervasive, diffuse tropical interspecific competition, for evolutionary specialization, and for positive feedback on speciation rates at low latitudes, thereby generating new predictions and insights into tropical life histories and the Latitudinal Diversity Gradient. Other recent ideas concerning the coexistence of Neotropical insectivores, including positive species interactions within mixed species flocks, are recognized and evaluated. We discuss ways to test predictions resulting from the new view of communities developed here, including a case study of diet specialization by Costa Rican tyrannid flycatchers. Our synthesis of the origin and nature of Neotropical insectivore communities injects new life into the zombie idea that evolution works differently in the species-rich tropics.
英文关键词	arms race avian ecology coexistence diffuse competition insectivore interspecific competition Neotropical specialization
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000611795800009
WOS关键词	RAIN-FOREST BIRD ; LATITUDINAL GRADIENT ; INTERSPECIFIC AGGRESSION ; HABITAT SPECIALIZATION ; FORAGING ECOLOGY ; PASSERINE BIRDS ; CLUTCH SIZE ; COMPETITION ; DIVERSITY ; RESPONSES
WOS类目	Ornithology
WOS研究方向	Zoology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348745
作者单位	[Sherry, Thomas W.; Kent, Cody M.] Tulane Univ, Dept Ecol & Evolutionary Biol, New Orleans, LA 70118 USA; [Sanchez, Natalie, V] Univ Alberta, Dept Biol Sci, Edmonton, AB, Canada; [Sekercioglu, Cagan H.] Univ Utah, Dept Biol, Salt Lake City, UT 84112 USA; [Sekercioglu, Cagan H.] Koc Univ, Dept Mol Biol & Genet, Istanbul, Turkey
推荐引用方式 GB/T 7714	Sherry, Thomas W.,Kent, Cody M.,Sanchez, Natalie, V,et al. Insectivorous birds in the Neotropics: Ecological radiations, specialization, and coexistence in species-rich communities[J],2020,137(4).
APA	Sherry, Thomas W.,Kent, Cody M.,Sanchez, Natalie, V,&Sekercioglu, Cagan H..(2020).Insectivorous birds in the Neotropics: Ecological radiations, specialization, and coexistence in species-rich communities.AUK,137(4).
MLA	Sherry, Thomas W.,et al."Insectivorous birds in the Neotropics: Ecological radiations, specialization, and coexistence in species-rich communities".AUK 137.4(2020).