The ecological causes of individual specialisation

Ecology Letters - Tập 14 Số 9 - Trang 948-958 - 2011
Márcio S. Araújo1, Daniel I. Bolnick, Craig A. Layman
1Marine Sciences Program, Department of Biological Sciences, Florida International University, Miami, FL 33181, USA. [email protected]

Tóm tắt

Ecology Letters (2011) 14: 948–958AbstractMany generalist populations are composed of specialised individuals, whose niches are small subsets of the population niche. This ‘individual specialisation’ is a widespread phenomenon in natural populations, but until recently few studies quantified the magnitude of individual specialisation and how this magnitude varies among populations or contexts. Such quantitative approaches are necessary for us to understand how ecological interactions influence the amount of among‐individual variation, and how the amount of variation might affect ecological dynamics. Herein, we review recent studies of individual specialisation, emphasising the novel insights arising from quantitative measures of diet variation. Experimental and comparative studies have confirmed long‐standing theoretical expectations that the magnitude of among‐individual diet variation depends on the level of intra and interspecific competition, ecological opportunity and predation. In contrast, there is little empirical information as to how individual specialisation affects community dynamics. We discuss some emerging methodological issues as guidelines for researchers studying individual specialisation, and make specific recommendations regarding avenues for future research.

Từ khóa


Tài liệu tham khảo

10.1111/j.0014-3820.2004.tb01614.x

10.2307/1941699

10.1098/rspb.2010.0232

10.1007/s00265-007-0425-z

10.1007/s00442-007-0687-1

10.1890/07-0630.1

10.1111/j.1365-2656.2009.01546.x

10.1111/j.0021-8790.2004.00861.x

10.1016/0040-5809(78)90006-0

10.1890/0012-9658(2002)083[2936:MILRS]2.0.CO;2

10.1086/343878

10.1073/pnas.0703743104

10.1098/rspb.2010.0018

10.1016/j.tree.2011.01.009

10.1098/rsbl.2006.0445

10.1006/anbe.1998.0852

10.1086/592998

10.1007/s00442-005-0118-0

10.1111/j.1095-8312.2007.00716.x

10.1111/j.1365-2656.2008.01473.x

10.1007/BF00317076

10.1098/rspb.1994.0088

10.1111/j.1365-2427.2009.02336.x

10.1086/499544

10.1046/j.1365-2656.2003.00690.x

10.1111/j.1365-2745.2008.01405.x

10.1643/CE-09-031

10.1007/BF01601953

10.1016/j.anbehav.2004.06.021

10.1093/icb/21.4.795

10.1515/9781400850624

10.1139/z02-022

10.1644/07-MAMM-A-263.1

10.1016/S0003-3472(88)80260-4

10.1111/j.1461-0248.2008.01179.x

10.1098/rsbl.2006.0603

10.1007/s00442-008-1140-9

10.3354/meps08380

10.1073/pnas.0806449106

Knudsen R., 2007, Contrasting niche‐based variation in trophic morphology within Arctic charr populations, Evol. Ecol. Res., 9, 1005

10.1007/s00442-009-1415-9

10.1007/s00265-004-0904-4

10.1890/08-0167.1

10.1890/04-1098

10.1890/0012-9658(2007)88[42:CSIRPF]2.0.CO;2

10.1111/j.1461-0248.2007.01087.x

10.1371/journal.pone.0003868

10.1007/s00442-009-1357-2

10.1111/j.1365-2656.2010.01753.x

10.1007/s00442-004-1579-2

10.1890/09-0235.1

10.1111/j.1461-0248.2005.00742.x

10.1146/annurev.ecolsys.36.091704.175517

10.1890/04-1503

10.1890/060150.1

10.1890/07-1812.1

10.1111/j.1095-8312.2005.00517.x

10.1007/s11284-007-0425-5

10.1111/j.1095-8312.2007.00742.x

10.1086/646604

10.1111/j.1365-2656.2006.01119.x

10.1007/BF00384938

10.1007/s00227-006-0307-3

10.1890/07-1580.1

10.1163/156853900502501

10.1038/nature04887

10.1086/282807

10.1086/282924

Roughgarden J., 1979, Theory of Population Genetics and Evolutionary Ecology: An Introduction

10.1086/285514

10.1016/j.anbehav.2009.05.037

10.1139/z05-136

10.1146/annurev.es.02.110171.002101

Schoener T.W., 1986, Community Ecology: Pattern and Process, 91

10.1890/10-2071.1

10.1371/journal.pone.0006187

10.2307/1937166

10.1890/04-1136

10.1086/284969

Svanbäck R., 2005, Intraspecific competition affects the strength of individual specialisation: an optimal diet theory model, Evol. Ecol. Res., 7, 993

10.1098/rspb.2006.0198

10.1034/j.1600-0706.2003.12657.x

10.1111/j.0269-8463.2004.00858.x

Svanbäck R., 2006, Genetic variation and phenotypic plasticity: causes of morphological and dietary variation in Eurasian perch, Evol. Ecol. Res., 8, 37

10.1111/j.0021-8790.2004.00868.x

10.1086/597223

10.1111/j.2007.0030-1299.16267.x

10.1111/j.1600-0706.2010.18945.x

10.2307/1940385

10.1073/pnas.0709263105

Tinker M.T., 2009, Learning to be different: acquired skills, social learning, frequency dependence, and environmental variation can cause behaviourally mediated foraging specialisations, Evol. Ecol. Res., 11, 841

10.1111/j.1748-7692.2009.00297.x

10.1111/j.1600-0633.2008.00300.x

10.1086/282379

10.1086/528965

10.1073/pnas.84.15.5506

10.2307/1937507

10.2307/1937702

10.1086/284528

10.1073/pnas.0905309106

Thông tin
Thông tin xuất bản

Ecology Letters

Tập 14 Số 9

948-958

Thông tin tác giả