Spatial network structure and metapopulation persistence

We explore the relationship between network structure and dynamics by relating the topology of spatial networks with its underlying metapopulation abundance. Metapopulation abundance is largely affected by the architecture of the spatial network, although this effect depends on demographic parameter...

ver descrição completa

Detalhes bibliográficos
Autores: Gilarranz, Luis J., Bascompte, Jordi
Formato: artículo
Fecha de publicación:2012
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/44411
Acesso em linha:http://hdl.handle.net/10261/44411
Access Level:acceso abierto
Palavra-chave:Metapopulation
Degree distribution
Connectivity correlation
Spatial networks
id ES_9ecbf201b881bac3bffa44e00a59d807
oai_identifier_str oai:digital.csic.es:10261/44411
network_acronym_str ES
network_name_str España
repository_id_str
spelling Spatial network structure and metapopulation persistenceGilarranz, Luis J.Bascompte, JordiMetapopulationDegree distributionConnectivity correlationSpatial networksWe explore the relationship between network structure and dynamics by relating the topology of spatial networks with its underlying metapopulation abundance. Metapopulation abundance is largely affected by the architecture of the spatial network, although this effect depends on demographic parameters here represented by the extinction-to-colonization ratio (e/c). Thus, for moderate to large e/c-values, regional abundance grows with the heterogeneity of the network, with uniform or random networks having the lowest regional abundances, and scale-free networks having the largest abundance. However, the ranking is reversed for low extinction probabilities, with heterogeneous networks showing the lowest relative abundance. We further explore the mechanisms underlying such results by relating a node’s incidence (average number of time steps the node is occupied) with its degree, and with the average degree of the nodes it interacts with. These results demonstrate the importance of spatial network structure to understanding metapopulation abundance, and serve to determine under what circumstances information on network structure should be complemented with information on the species life-history traits to understand persistence in heterogeneous environmentsPeer reviewedEcological Society of America201220122012info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/44411reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.jtbi.2011.11.027info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/444112026-05-22T06:33:51Z
dc.title.none.fl_str_mv Spatial network structure and metapopulation persistence
title Spatial network structure and metapopulation persistence
spellingShingle Spatial network structure and metapopulation persistence
Gilarranz, Luis J.
Metapopulation
Degree distribution
Connectivity correlation
Spatial networks
title_short Spatial network structure and metapopulation persistence
title_full Spatial network structure and metapopulation persistence
title_fullStr Spatial network structure and metapopulation persistence
title_full_unstemmed Spatial network structure and metapopulation persistence
title_sort Spatial network structure and metapopulation persistence
dc.creator.none.fl_str_mv Gilarranz, Luis J.
Bascompte, Jordi
author Gilarranz, Luis J.
author_facet Gilarranz, Luis J.
Bascompte, Jordi
author_role author
author2 Bascompte, Jordi
author2_role author
dc.subject.none.fl_str_mv Metapopulation
Degree distribution
Connectivity correlation
Spatial networks
topic Metapopulation
Degree distribution
Connectivity correlation
Spatial networks
description We explore the relationship between network structure and dynamics by relating the topology of spatial networks with its underlying metapopulation abundance. Metapopulation abundance is largely affected by the architecture of the spatial network, although this effect depends on demographic parameters here represented by the extinction-to-colonization ratio (e/c). Thus, for moderate to large e/c-values, regional abundance grows with the heterogeneity of the network, with uniform or random networks having the lowest regional abundances, and scale-free networks having the largest abundance. However, the ranking is reversed for low extinction probabilities, with heterogeneous networks showing the lowest relative abundance. We further explore the mechanisms underlying such results by relating a node’s incidence (average number of time steps the node is occupied) with its degree, and with the average degree of the nodes it interacts with. These results demonstrate the importance of spatial network structure to understanding metapopulation abundance, and serve to determine under what circumstances information on network structure should be complemented with information on the species life-history traits to understand persistence in heterogeneous environments
publishDate 2012
dc.date.none.fl_str_mv 2012
2012
2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/44411
url http://hdl.handle.net/10261/44411
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.jtbi.2011.11.027
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Ecological Society of America
publisher.none.fl_str_mv Ecological Society of America
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869414856772288512
score 15,81155

Registos relacionados