The importance of transients’ dynamics in spatially extended populations

Autores
Saravia, Leonardo; Ruxton, Graeme; Coviella, Carlos E.
Año de publicación
2000
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión aceptada
Descripción
Fil: Saravia, Leonardo. Universidad Nacional de Luján; Argentina
Fil: Ruxton, Graeme. Universidad Nacional de Luján; Argentina.
Fil: Coviella, Carlos E. Universidad Nacional de Luján; Argentina.
Recent theoretical works on the dynamics of metapopulations have highlighted the existence of very long transients (supertransients) with abrupt changes in behaviour which occur following perturbation of the system away from its attractor. If this phenomenon is common in natural systems, populations that do not oscillate can begin to £uctuate wildly without any change in the environmental conditions. However, the frequency of occurrence of supertransients is currently poorly understood even in model systems. Here we explore their occurrence in metapopulation models which relax the important assumption of global synchrony of events implicit in all the coupled map lattice models for which supertransients have so far been demonstrated. We ¢nd supertransients in all the models but always only for a very restricted range of parameter combinations. However, we also report for the ¢rst time another type of longer-lived transient (mesotransients) that occurs on shorter time-scales than supertransients and is found for a much wider set of conditions.We argue that these medium-term changes in the dynamics of populations can be of more ecological relevance than the long-term changes of supertransients.
Materia
Supertransients
Synchrony
Spatial
Synchrony
Models
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
REDIUNLU (UNLu)
Institución
Universidad Nacional de Luján
OAI Identificador
oai:ri.unlu.edu.ar:rediunlu/1088

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spelling The importance of transients’ dynamics in spatially extended populationsSaravia, LeonardoRuxton, GraemeCoviella, Carlos E.SupertransientsSynchronySpatialSynchronyModelsFil: Saravia, Leonardo. Universidad Nacional de Luján; ArgentinaFil: Ruxton, Graeme. Universidad Nacional de Luján; Argentina.Fil: Coviella, Carlos E. Universidad Nacional de Luján; Argentina.Recent theoretical works on the dynamics of metapopulations have highlighted the existence of very long transients (supertransients) with abrupt changes in behaviour which occur following perturbation of the system away from its attractor. If this phenomenon is common in natural systems, populations that do not oscillate can begin to £uctuate wildly without any change in the environmental conditions. However, the frequency of occurrence of supertransients is currently poorly understood even in model systems. Here we explore their occurrence in metapopulation models which relax the important assumption of global synchrony of events implicit in all the coupled map lattice models for which supertransients have so far been demonstrated. We ¢nd supertransients in all the models but always only for a very restricted range of parameter combinations. However, we also report for the ¢rst time another type of longer-lived transient (mesotransients) that occurs on shorter time-scales than supertransients and is found for a much wider set of conditions.We argue that these medium-term changes in the dynamics of populations can be of more ecological relevance than the long-term changes of supertransients.The Royal Society2022-04-12T17:40:36Z2022-04-12T17:40:36Z2000Articleinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://ri.unlu.edu.ar/xmlui/handle/rediunlu/1088spaeninfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:REDIUNLU (UNLu)instname:Universidad Nacional de Luján2025-09-29T14:29:51Zoai:ri.unlu.edu.ar:rediunlu/1088instacron:UNLuInstitucionalhttps://ri.unlu.edu.arUniversidad públicaNo correspondehttps://ri.unlu.edu.ar/oaivcano@unlu.edu.ar;fgutierrez@mail.unlu.edu.ar;faquilinogutierrez@gmail.com ArgentinaNo correspondeNo correspondeNo correspondeopendoar:w2025-09-29 14:29:52.213REDIUNLU (UNLu) - Universidad Nacional de Lujánfalse
dc.title.none.fl_str_mv The importance of transients’ dynamics in spatially extended populations
title The importance of transients’ dynamics in spatially extended populations
spellingShingle The importance of transients’ dynamics in spatially extended populations
Saravia, Leonardo
Supertransients
Synchrony
Spatial
Synchrony
Models
title_short The importance of transients’ dynamics in spatially extended populations
title_full The importance of transients’ dynamics in spatially extended populations
title_fullStr The importance of transients’ dynamics in spatially extended populations
title_full_unstemmed The importance of transients’ dynamics in spatially extended populations
title_sort The importance of transients’ dynamics in spatially extended populations
dc.creator.none.fl_str_mv Saravia, Leonardo
Ruxton, Graeme
Coviella, Carlos E.
author Saravia, Leonardo
author_facet Saravia, Leonardo
Ruxton, Graeme
Coviella, Carlos E.
author_role author
author2 Ruxton, Graeme
Coviella, Carlos E.
author2_role author
author
dc.subject.none.fl_str_mv Supertransients
Synchrony
Spatial
Synchrony
Models
topic Supertransients
Synchrony
Spatial
Synchrony
Models
dc.description.none.fl_txt_mv Fil: Saravia, Leonardo. Universidad Nacional de Luján; Argentina
Fil: Ruxton, Graeme. Universidad Nacional de Luján; Argentina.
Fil: Coviella, Carlos E. Universidad Nacional de Luján; Argentina.
Recent theoretical works on the dynamics of metapopulations have highlighted the existence of very long transients (supertransients) with abrupt changes in behaviour which occur following perturbation of the system away from its attractor. If this phenomenon is common in natural systems, populations that do not oscillate can begin to £uctuate wildly without any change in the environmental conditions. However, the frequency of occurrence of supertransients is currently poorly understood even in model systems. Here we explore their occurrence in metapopulation models which relax the important assumption of global synchrony of events implicit in all the coupled map lattice models for which supertransients have so far been demonstrated. We ¢nd supertransients in all the models but always only for a very restricted range of parameter combinations. However, we also report for the ¢rst time another type of longer-lived transient (mesotransients) that occurs on shorter time-scales than supertransients and is found for a much wider set of conditions.We argue that these medium-term changes in the dynamics of populations can be of more ecological relevance than the long-term changes of supertransients.
description Fil: Saravia, Leonardo. Universidad Nacional de Luján; Argentina
publishDate 2000
dc.date.none.fl_str_mv 2000
2022-04-12T17:40:36Z
2022-04-12T17:40:36Z
dc.type.none.fl_str_mv Article
info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://ri.unlu.edu.ar/xmlui/handle/rediunlu/1088
url http://ri.unlu.edu.ar/xmlui/handle/rediunlu/1088
dc.language.none.fl_str_mv spa
en
language spa
language_invalid_str_mv en
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv The Royal Society
publisher.none.fl_str_mv The Royal Society
dc.source.none.fl_str_mv reponame:REDIUNLU (UNLu)
instname:Universidad Nacional de Luján
reponame_str REDIUNLU (UNLu)
collection REDIUNLU (UNLu)
instname_str Universidad Nacional de Luján
repository.name.fl_str_mv REDIUNLU (UNLu) - Universidad Nacional de Luján
repository.mail.fl_str_mv vcano@unlu.edu.ar;fgutierrez@mail.unlu.edu.ar;faquilinogutierrez@gmail.com
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