The ecological causes of individual specialisation
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1111/j.1461-0248.2011.01662.x http://hdl.handle.net/11449/41247 |
Resumo: | Many 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. |
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The ecological causes of individual specialisationCompetitionecological opportunityecology of individualsfood websniche variation hypothesisoptimal foraging theorypredator-prey interactionsstable isotopesMany 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.National Science FoundationU. S. Department of Homeland SecurityU. S. Department of Agriculture through NSFUniversity of Tennessee, KnoxvilleNational Science Foundation (NSF)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Howard Hughes Medical InstituteDavid and Lucille Packard FoundationFlorida Int Univ, Dept Biol Sci, Marine Sci Program, Miami, FL 33181 USAUniv Texas Austin, Howard Hughes Med Inst, Austin, TX 78712 USAUniv Texas Austin, Sect Integrat Biol, Austin, TX 78712 USAU. S. NSF: EF-0832858NSF: OCE 0746164NSF: DEB 0842196Wiley-BlackwellFlorida Int UnivUniversidade Estadual Paulista (Unesp)University of Texas AustinAraujo, Marcio S. [UNESP]Bolnick, Daniel I.Layman, Craig A.2014-05-20T15:32:18Z2014-05-20T15:32:18Z2011-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article948-958http://dx.doi.org/10.1111/j.1461-0248.2011.01662.xEcology Letters. Malden: Wiley-blackwell, v. 14, n. 9, p. 948-958, 2011.1461-023Xhttp://hdl.handle.net/11449/4124710.1111/j.1461-0248.2011.01662.xWOS:000293628300015Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEcology Letters9.137info:eu-repo/semantics/openAccess2021-10-23T03:22:08Zoai:repositorio.unesp.br:11449/41247Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T03:22:08Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
The ecological causes of individual specialisation |
title |
The ecological causes of individual specialisation |
spellingShingle |
The ecological causes of individual specialisation Araujo, Marcio S. [UNESP] Competition ecological opportunity ecology of individuals food webs niche variation hypothesis optimal foraging theory predator-prey interactions stable isotopes |
title_short |
The ecological causes of individual specialisation |
title_full |
The ecological causes of individual specialisation |
title_fullStr |
The ecological causes of individual specialisation |
title_full_unstemmed |
The ecological causes of individual specialisation |
title_sort |
The ecological causes of individual specialisation |
author |
Araujo, Marcio S. [UNESP] |
author_facet |
Araujo, Marcio S. [UNESP] Bolnick, Daniel I. Layman, Craig A. |
author_role |
author |
author2 |
Bolnick, Daniel I. Layman, Craig A. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Florida Int Univ Universidade Estadual Paulista (Unesp) University of Texas Austin |
dc.contributor.author.fl_str_mv |
Araujo, Marcio S. [UNESP] Bolnick, Daniel I. Layman, Craig A. |
dc.subject.por.fl_str_mv |
Competition ecological opportunity ecology of individuals food webs niche variation hypothesis optimal foraging theory predator-prey interactions stable isotopes |
topic |
Competition ecological opportunity ecology of individuals food webs niche variation hypothesis optimal foraging theory predator-prey interactions stable isotopes |
description |
Many 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. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-09-01 2014-05-20T15:32:18Z 2014-05-20T15:32:18Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1111/j.1461-0248.2011.01662.x Ecology Letters. Malden: Wiley-blackwell, v. 14, n. 9, p. 948-958, 2011. 1461-023X http://hdl.handle.net/11449/41247 10.1111/j.1461-0248.2011.01662.x WOS:000293628300015 |
url |
http://dx.doi.org/10.1111/j.1461-0248.2011.01662.x http://hdl.handle.net/11449/41247 |
identifier_str_mv |
Ecology Letters. Malden: Wiley-blackwell, v. 14, n. 9, p. 948-958, 2011. 1461-023X 10.1111/j.1461-0248.2011.01662.x WOS:000293628300015 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Ecology Letters 9.137 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
948-958 |
dc.publisher.none.fl_str_mv |
Wiley-Blackwell |
publisher.none.fl_str_mv |
Wiley-Blackwell |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1797789324892176384 |