Intraspecific Niche Variation Drives Abundance-Occupancy Relationships in Freshwater Fish Communities

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	Intraspecific Niche Variation Drives Abundance-Occupancy Relationships in Freshwater Fish Communities
	Faulks, Leanne ; Svanback, Richard ; Ragnarsson-Stabo, Henrik ; Eklov, Peter ; Ostman, Orjan
刊名	AMERICAN NATURALIST
	2015
卷号	186 期号:2 页码:272-283
关键词	RANGE SIZE RELATIONSHIPS ECOLOGICAL CONSEQUENCES POPULATION-DYNAMICS GENETIC DIVERSITY LOCAL ABUNDANCE AFLP SPECIALIZATION BREADTH POLYMORPHISM COMPETITION
ISSN号	0003-0147
中文摘要	A positive relationship between occupancy and average local abundance of species is found in a variety of taxa, yet the mechanisms driving this association between abundance and occupancy are still enigmatic. Here we show that freshwater fishes exhibit a positive abundance-occupancy relationship across 125 Swedish lakes. For a subset of 9 species from 11 lakes, we estimated species-specific diet breadth from stable isotopes, within-lake habitat breadth from catch data for littoral and pelagic nets, adaptive potential from genetic diversity, abiotic niche position, and dispersal capacity. Average local abundance was mainly positively associated with both within-lake habitat and diet breadth, that is, species with larger intraspecific variation in niche space had higher abundances. No measure was a good predictor of occupancy, indicating that occupancy may be more directly related to abundance or abiotic conditions than to niche breadth per se. This study suggests a link between intraspecific niche variation and a positive abundance-occupancy relationship and implies that management of freshwater fish communities, whether to conserve threatened or control invasive species, should initially be aimed at niche processes.
收录类别	SCI
原文出处	10.1086/682004
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/353005/9807]
专题	西双版纳热带植物园_文献共享
推荐引用方式 GB/T 7714	Faulks, Leanne,Svanback, Richard,Ragnarsson-Stabo, Henrik,et al. Intraspecific Niche Variation Drives Abundance-Occupancy Relationships in Freshwater Fish Communities[J]. AMERICAN NATURALIST,2015,186(2):272-283.
APA	Faulks, Leanne,Svanback, Richard,Ragnarsson-Stabo, Henrik,Eklov, Peter,&Ostman, Orjan.(2015).Intraspecific Niche Variation Drives Abundance-Occupancy Relationships in Freshwater Fish Communities.AMERICAN NATURALIST,186(2),272-283.
MLA	Faulks, Leanne,et al."Intraspecific Niche Variation Drives Abundance-Occupancy Relationships in Freshwater Fish Communities".AMERICAN NATURALIST 186.2(2015):272-283.