The interplay between seasonality and density: consequences for female breeding decisions in a small cyclic herbivore.
International audience BACKGROUND: Cyclic rodent population dynamics are subjected to both intrinsic regulatory processes such as density-dependence and extrinsic environmental forcing. Among extrinsic factors, seasonal environmental variation is understood to facilitate cycles. In rodents, these pr...
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Online Access: | https://hal.science/hal-01003704 https://hal.science/hal-01003704/document https://hal.science/hal-01003704/file/2014_Pinot_BMC%20Ecology_1.pdf https://doi.org/10.1186/1472-6785-14-17 |
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ftunivnantes:oai:HAL:hal-01003704v1 2023-05-15T15:56:30+02:00 The interplay between seasonality and density: consequences for female breeding decisions in a small cyclic herbivore. Pinot, Adrien Gauffre, Bertrand Bretagnolle, Vincent VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS) Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Institut National de la Recherche Agronomique (INRA)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Universite Pierre et Marie Curie; BiodivERsA project "Ecocycle"; NERC NE/G002045/1 2014-05-28 https://hal.science/hal-01003704 https://hal.science/hal-01003704/document https://hal.science/hal-01003704/file/2014_Pinot_BMC%20Ecology_1.pdf https://doi.org/10.1186/1472-6785-14-17 en eng HAL CCSD BioMed Central info:eu-repo/semantics/altIdentifier/doi/10.1186/1472-6785-14-17 info:eu-repo/semantics/altIdentifier/pmid/24886481 hal-01003704 https://hal.science/hal-01003704 https://hal.science/hal-01003704/document https://hal.science/hal-01003704/file/2014_Pinot_BMC%20Ecology_1.pdf doi:10.1186/1472-6785-14-17 PRODINRA: 278965 PUBMED: 24886481 WOS: 000338360600002 info:eu-repo/semantics/OpenAccess ISSN: 1472-6785 BMC Ecology https://hal.science/hal-01003704 BMC Ecology, 2014, 14 (1), pp.17. ⟨10.1186/1472-6785-14-17⟩ http://www.biomedcentral.com/bmcecol/ Seasonality Density-dependence Fecundity Population cycles Common vole [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2014 ftunivnantes https://doi.org/10.1186/1472-6785-14-17 2023-03-08T04:31:27Z International audience BACKGROUND: Cyclic rodent population dynamics are subjected to both intrinsic regulatory processes such as density-dependence and extrinsic environmental forcing. Among extrinsic factors, seasonal environmental variation is understood to facilitate cycles. In rodents, these processes have been studied mostly independently and their relative importance for population dynamics is poorly known. RESULTS: We performed a detailed analysis of common vole (Microtus arvalis) reproduction in a cyclic population using a spatially extensive data set over 17 years in central-western France. Environmental seasonality was the main source of explained variation in common vole reproduction. Additionally, inter-annual variation in the environment explained a smaller part of the variance in reproduction in spring and summer than in winter, whereas the effect of density was only found in autumn and winter. In particular, we detected a strong impact of plant productivity on fecundity during the breeding season, with low vegetation productivity being able to bring vole reproduction nearly to a halt. In contrast, vole reproduction during autumn and winter was mainly shaped by intrinsic factors, with only the longer and heavier females being able to reproduce. The effect of population density on reproduction was negative, mediated by direct negative effects on the proportion of breeders in autumn and winter during outbreak years and by a delayed negative effect on litter size the following year. CONCLUSIONS: During the main breeding season, variability of female vole reproduction is predominantly shaped by food resources, suggesting that only highly productive environment may induce vole outbreaks. During fall and winter, variability of female vole reproduction is mainly controlled by intrinsic factors, with high population density suppressing reproduction. This suggests, in this cyclic population, that negative direct density dependence on reproduction could explain winter declines after outbreaks. Article in Journal/Newspaper Common vole Microtus arvalis Université de Nantes: HAL-UNIV-NANTES BMC Ecology 14 1 17 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
Seasonality Density-dependence Fecundity Population cycles Common vole [SDE]Environmental Sciences |
spellingShingle |
Seasonality Density-dependence Fecundity Population cycles Common vole [SDE]Environmental Sciences Pinot, Adrien Gauffre, Bertrand Bretagnolle, Vincent The interplay between seasonality and density: consequences for female breeding decisions in a small cyclic herbivore. |
topic_facet |
Seasonality Density-dependence Fecundity Population cycles Common vole [SDE]Environmental Sciences |
description |
International audience BACKGROUND: Cyclic rodent population dynamics are subjected to both intrinsic regulatory processes such as density-dependence and extrinsic environmental forcing. Among extrinsic factors, seasonal environmental variation is understood to facilitate cycles. In rodents, these processes have been studied mostly independently and their relative importance for population dynamics is poorly known. RESULTS: We performed a detailed analysis of common vole (Microtus arvalis) reproduction in a cyclic population using a spatially extensive data set over 17 years in central-western France. Environmental seasonality was the main source of explained variation in common vole reproduction. Additionally, inter-annual variation in the environment explained a smaller part of the variance in reproduction in spring and summer than in winter, whereas the effect of density was only found in autumn and winter. In particular, we detected a strong impact of plant productivity on fecundity during the breeding season, with low vegetation productivity being able to bring vole reproduction nearly to a halt. In contrast, vole reproduction during autumn and winter was mainly shaped by intrinsic factors, with only the longer and heavier females being able to reproduce. The effect of population density on reproduction was negative, mediated by direct negative effects on the proportion of breeders in autumn and winter during outbreak years and by a delayed negative effect on litter size the following year. CONCLUSIONS: During the main breeding season, variability of female vole reproduction is predominantly shaped by food resources, suggesting that only highly productive environment may induce vole outbreaks. During fall and winter, variability of female vole reproduction is mainly controlled by intrinsic factors, with high population density suppressing reproduction. This suggests, in this cyclic population, that negative direct density dependence on reproduction could explain winter declines after outbreaks. |
author2 |
VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS) Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Institut National de la Recherche Agronomique (INRA)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Universite Pierre et Marie Curie; BiodivERsA project "Ecocycle"; NERC NE/G002045/1 |
format |
Article in Journal/Newspaper |
author |
Pinot, Adrien Gauffre, Bertrand Bretagnolle, Vincent |
author_facet |
Pinot, Adrien Gauffre, Bertrand Bretagnolle, Vincent |
author_sort |
Pinot, Adrien |
title |
The interplay between seasonality and density: consequences for female breeding decisions in a small cyclic herbivore. |
title_short |
The interplay between seasonality and density: consequences for female breeding decisions in a small cyclic herbivore. |
title_full |
The interplay between seasonality and density: consequences for female breeding decisions in a small cyclic herbivore. |
title_fullStr |
The interplay between seasonality and density: consequences for female breeding decisions in a small cyclic herbivore. |
title_full_unstemmed |
The interplay between seasonality and density: consequences for female breeding decisions in a small cyclic herbivore. |
title_sort |
interplay between seasonality and density: consequences for female breeding decisions in a small cyclic herbivore. |
publisher |
HAL CCSD |
publishDate |
2014 |
url |
https://hal.science/hal-01003704 https://hal.science/hal-01003704/document https://hal.science/hal-01003704/file/2014_Pinot_BMC%20Ecology_1.pdf https://doi.org/10.1186/1472-6785-14-17 |
genre |
Common vole Microtus arvalis |
genre_facet |
Common vole Microtus arvalis |
op_source |
ISSN: 1472-6785 BMC Ecology https://hal.science/hal-01003704 BMC Ecology, 2014, 14 (1), pp.17. ⟨10.1186/1472-6785-14-17⟩ http://www.biomedcentral.com/bmcecol/ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1186/1472-6785-14-17 info:eu-repo/semantics/altIdentifier/pmid/24886481 hal-01003704 https://hal.science/hal-01003704 https://hal.science/hal-01003704/document https://hal.science/hal-01003704/file/2014_Pinot_BMC%20Ecology_1.pdf doi:10.1186/1472-6785-14-17 PRODINRA: 278965 PUBMED: 24886481 WOS: 000338360600002 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1186/1472-6785-14-17 |
container_title |
BMC Ecology |
container_volume |
14 |
container_issue |
1 |
container_start_page |
17 |
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1766391909166612480 |