Phenotypic Selection Exerted by a Seed Predator Is Replicated in Space and Time and among Prey Species

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	Phenotypic Selection Exerted by a Seed Predator Is Replicated in Space and Time and among Prey Species
	Benkman, Craig W. ; Mezquida, Eduardo T.
刊名	AMERICAN NATURALIST
	2015
卷号	186 期号:5 页码:682-691
关键词	BIOTIC INTERACTION STRENGTH DIRECTIONAL SELECTION POLLINATION SYNDROMES LODGEPOLE PINE DIVERSIFYING COEVOLUTION FLUCTUATING SELECTION DISRUPTIVE SELECTION GEOGRAPHIC-VARIATION NATURAL-POPULATIONS ADAPTIVE RADIATION
ISSN号	0003-0147
中文摘要	Although consistent phenotypic selection arising from biotic interactions is thought to be the primary cause of adaptive diversification, studies documenting such selection are relatively few. Here we analyze 12 episodes of phenotypic selection exerted by a predispersal seed predator, the red crossbill (Loxia curvirostra complex), on five species of pines (Pinus). We find that even though the intensity of selection for some traits increased with the strength of the interaction (i.e., proportion of seeds eaten), the relative strength of selection exerted by crossbills on cone and seed traits is replicated across space and time and among species. Such selection (1) can account for repeated patterns of conifer cone evolution and escalation in seed defenses with time and (2) suggests that variation in selection is less the result of variation intrinsic to pairwise biotic interactions than, for example, variation in relative densities of the interacting species, community context, and abiotic factors.
收录类别	SCI
原文出处	10.1086/683131
语种	英语
公开日期	2016-05-12
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/9802]
专题	西双版纳热带植物园_文献共享
推荐引用方式 GB/T 7714	Benkman, Craig W.,Mezquida, Eduardo T.. Phenotypic Selection Exerted by a Seed Predator Is Replicated in Space and Time and among Prey Species[J]. AMERICAN NATURALIST,2015,186(5):682-691.
APA	Benkman, Craig W.,&Mezquida, Eduardo T..(2015).Phenotypic Selection Exerted by a Seed Predator Is Replicated in Space and Time and among Prey Species.AMERICAN NATURALIST,186(5),682-691.
MLA	Benkman, Craig W.,et al."Phenotypic Selection Exerted by a Seed Predator Is Replicated in Space and Time and among Prey Species".AMERICAN NATURALIST 186.5(2015):682-691.