Spatial genetic structure of a small rodent in a eterogeneous landscape
Correspondance: gauffre@supagro.inra.fr International audience Gene flow in natural populations may be strongly influenced by landscape features. The integration of landscape characteristics in population genetic studies may thus improve our understanding of population functioning. In this study, we...
Published in: | Molecular Ecology |
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Online Access: | https://hal.science/hal-00339298 https://doi.org/10.1111/j.1365-294X.2008.03950.x |
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ftsupagro:oai:HAL:hal-00339298v1 2023-07-30T04:03:00+02:00 Spatial genetic structure of a small rodent in a eterogeneous landscape Gauffre, Bertrand Estoup, A. Bretagnolle, Vincent Cosson, F. Centre de Biologie pour la Gestion des Populations (UMR CBGP) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Université de Montpellier (UM)-Institut de Recherche pour le Développement (IRD France-Sud )-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro) Centre d'Études Biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) 2008-09-01 https://hal.science/hal-00339298 https://doi.org/10.1111/j.1365-294X.2008.03950.x en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-294X.2008.03950.x hal-00339298 https://hal.science/hal-00339298 doi:10.1111/j.1365-294X.2008.03950.x PRODINRA: 30037 WOS: 000260345200005 ISSN: 0962-1083 EISSN: 1365-294X Molecular Ecology https://hal.science/hal-00339298 Molecular Ecology, 2008, 17 (21), pp.4619-4629. ⟨10.1111/j.1365-294X.2008.03950.x⟩ clustering methods computer simulation gene flow landscape genetics microsatellites spatial genetic structure [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.ES]Environmental Sciences/Environmental and Society [SDE.MCG]Environmental Sciences/Global Changes info:eu-repo/semantics/article Journal articles 2008 ftsupagro https://doi.org/10.1111/j.1365-294X.2008.03950.x 2023-07-08T07:59:02Z Correspondance: gauffre@supagro.inra.fr International audience Gene flow in natural populations may be strongly influenced by landscape features. The integration of landscape characteristics in population genetic studies may thus improve our understanding of population functioning. In this study, we investigated the population genetic structure and gene flow pattern for the common vole, Microtus arvalis, in a heterogeneous landscape characterised by strong spatial and temporal variation. The studied area is an intensive agricultural zone of approximately 500 km2 crossed by a motorway. We used individual-based Bayesian methods to define the number of population units and their spatial borders without prior delimitation of such units. Unexpectedly, we determined a single genetic unit that covered the entire area studied. In particular, the motorway considered as a likely barrier to dispersal was not associated with any spatial genetic discontinuity. Using computer simulations, we demonstrated that recent anthropogenic barriers to effective dispersal are difficult to detect through analysis of genetic variation for species with large effective population sizes. We observed a slight, but significant, pattern of isolation by distance over the whole study site. Spatial autocorrelation analyses detected genetic structuring on a local scale, most probably due to the social organisation of the study species. Overall, our analysis suggests intense small-scale dispersal associated with a large effective population size. High dispersal rates may be imposed by the strong spatio-temporal heterogeneity of habitat quality, which characterises intensive agroecosystems. Article in Journal/Newspaper Common vole Microtus arvalis Unknown Molecular Ecology 17 21 4619 4629 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftsupagro |
language |
English |
topic |
clustering methods computer simulation gene flow landscape genetics microsatellites spatial genetic structure [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.ES]Environmental Sciences/Environmental and Society [SDE.MCG]Environmental Sciences/Global Changes |
spellingShingle |
clustering methods computer simulation gene flow landscape genetics microsatellites spatial genetic structure [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.ES]Environmental Sciences/Environmental and Society [SDE.MCG]Environmental Sciences/Global Changes Gauffre, Bertrand Estoup, A. Bretagnolle, Vincent Cosson, F. Spatial genetic structure of a small rodent in a eterogeneous landscape |
topic_facet |
clustering methods computer simulation gene flow landscape genetics microsatellites spatial genetic structure [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.ES]Environmental Sciences/Environmental and Society [SDE.MCG]Environmental Sciences/Global Changes |
description |
Correspondance: gauffre@supagro.inra.fr International audience Gene flow in natural populations may be strongly influenced by landscape features. The integration of landscape characteristics in population genetic studies may thus improve our understanding of population functioning. In this study, we investigated the population genetic structure and gene flow pattern for the common vole, Microtus arvalis, in a heterogeneous landscape characterised by strong spatial and temporal variation. The studied area is an intensive agricultural zone of approximately 500 km2 crossed by a motorway. We used individual-based Bayesian methods to define the number of population units and their spatial borders without prior delimitation of such units. Unexpectedly, we determined a single genetic unit that covered the entire area studied. In particular, the motorway considered as a likely barrier to dispersal was not associated with any spatial genetic discontinuity. Using computer simulations, we demonstrated that recent anthropogenic barriers to effective dispersal are difficult to detect through analysis of genetic variation for species with large effective population sizes. We observed a slight, but significant, pattern of isolation by distance over the whole study site. Spatial autocorrelation analyses detected genetic structuring on a local scale, most probably due to the social organisation of the study species. Overall, our analysis suggests intense small-scale dispersal associated with a large effective population size. High dispersal rates may be imposed by the strong spatio-temporal heterogeneity of habitat quality, which characterises intensive agroecosystems. |
author2 |
Centre de Biologie pour la Gestion des Populations (UMR CBGP) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Université de Montpellier (UM)-Institut de Recherche pour le Développement (IRD France-Sud )-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro) Centre d'Études Biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Gauffre, Bertrand Estoup, A. Bretagnolle, Vincent Cosson, F. |
author_facet |
Gauffre, Bertrand Estoup, A. Bretagnolle, Vincent Cosson, F. |
author_sort |
Gauffre, Bertrand |
title |
Spatial genetic structure of a small rodent in a eterogeneous landscape |
title_short |
Spatial genetic structure of a small rodent in a eterogeneous landscape |
title_full |
Spatial genetic structure of a small rodent in a eterogeneous landscape |
title_fullStr |
Spatial genetic structure of a small rodent in a eterogeneous landscape |
title_full_unstemmed |
Spatial genetic structure of a small rodent in a eterogeneous landscape |
title_sort |
spatial genetic structure of a small rodent in a eterogeneous landscape |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal.science/hal-00339298 https://doi.org/10.1111/j.1365-294X.2008.03950.x |
genre |
Common vole Microtus arvalis |
genre_facet |
Common vole Microtus arvalis |
op_source |
ISSN: 0962-1083 EISSN: 1365-294X Molecular Ecology https://hal.science/hal-00339298 Molecular Ecology, 2008, 17 (21), pp.4619-4629. ⟨10.1111/j.1365-294X.2008.03950.x⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-294X.2008.03950.x hal-00339298 https://hal.science/hal-00339298 doi:10.1111/j.1365-294X.2008.03950.x PRODINRA: 30037 WOS: 000260345200005 |
op_doi |
https://doi.org/10.1111/j.1365-294X.2008.03950.x |
container_title |
Molecular Ecology |
container_volume |
17 |
container_issue |
21 |
container_start_page |
4619 |
op_container_end_page |
4629 |
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1772813920351813632 |