Capture-recapture dataset of Svalbard voles (1990-2007) with trap locations and rain-on-snow measurements
Ecologists are still puzzled by the diverse population dynamics of herbivorous small mammals that range from high-amplitude, multi-annual cycles to stable dynamics. Theory predicts that this diversity results from combinations of climatic seasonality, weather stochasticity and density-dependent food...
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ftzenodo:oai:zenodo.org:5301579 2023-05-15T15:00:38+02:00 Capture-recapture dataset of Svalbard voles (1990-2007) with trap locations and rain-on-snow measurements Fauteux, Dominique Stien, Audun Yoccoz, Nigel G. Fuglei, Eva Ims, Rolf A. 2021-08-28 https://zenodo.org/record/5301579 https://doi.org/10.5061/dryad.hhmgqnkhd unknown https://zenodo.org/communities/dryad https://zenodo.org/record/5301579 https://doi.org/10.5061/dryad.hhmgqnkhd oai:zenodo.org:5301579 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode info:eu-repo/semantics/other dataset 2021 ftzenodo https://doi.org/10.5061/dryad.hhmgqnkhd 2023-03-10T13:59:46Z Ecologists are still puzzled by the diverse population dynamics of herbivorous small mammals that range from high-amplitude, multi-annual cycles to stable dynamics. Theory predicts that this diversity results from combinations of climatic seasonality, weather stochasticity and density-dependent food web interactions. The almost ubiquitous 3-5-yr cycles in boreal and arctic climates may theoretically result from bottom-up (plant-herbivore) and top-down (predator-prey) interactions. Assessing empirically the roles of such interactions, and how they are influenced by environmental stochasticity, has been hampered by food web complexity. Here, we take advantage of a uniquely simple High-Arctic food web, which allowed us to analyze dynamics of a graminivorous vole population not subjected to top-down regulation. This population exhibited high-amplitude, non-cyclic fluctuations - partly driven by weather stochasticity. However, the predominant driver of the dynamics was overcompensatory density dependence in winter that caused the population to frequently crash. Model simulations showed that the seasonal pattern of density dependence would yield regular 2-year cycles in absence of stochasticity. While such short cycles have not yet been observed in mammals, they are theoretically plausible if graminivorous vole populations are deterministically bottom-up regulated. When incorporating weather stochasticity in the model simulations, cyclicity became disrupted and the amplitude was increased - akin to the observed dynamics. Our findings contrast with the 3-5-yr population cycles that are typical of graminivorous small mammals in more complex food webs, suggesting that top-down regulation is normally an important component of such dynamics. Funding provided by: Norges ForskningsrådCrossref Funder Registry ID: http://dx.doi.org/10.13039/501100005416Award Number: Funding provided by: Governor of Svalbard*Crossref Funder Registry ID: Award Number: Funding provided by: Nansen Endowment*Crossref Funder Registry ID: Award ... Dataset Arctic Svalbard Zenodo Arctic Svalbard |
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description |
Ecologists are still puzzled by the diverse population dynamics of herbivorous small mammals that range from high-amplitude, multi-annual cycles to stable dynamics. Theory predicts that this diversity results from combinations of climatic seasonality, weather stochasticity and density-dependent food web interactions. The almost ubiquitous 3-5-yr cycles in boreal and arctic climates may theoretically result from bottom-up (plant-herbivore) and top-down (predator-prey) interactions. Assessing empirically the roles of such interactions, and how they are influenced by environmental stochasticity, has been hampered by food web complexity. Here, we take advantage of a uniquely simple High-Arctic food web, which allowed us to analyze dynamics of a graminivorous vole population not subjected to top-down regulation. This population exhibited high-amplitude, non-cyclic fluctuations - partly driven by weather stochasticity. However, the predominant driver of the dynamics was overcompensatory density dependence in winter that caused the population to frequently crash. Model simulations showed that the seasonal pattern of density dependence would yield regular 2-year cycles in absence of stochasticity. While such short cycles have not yet been observed in mammals, they are theoretically plausible if graminivorous vole populations are deterministically bottom-up regulated. When incorporating weather stochasticity in the model simulations, cyclicity became disrupted and the amplitude was increased - akin to the observed dynamics. Our findings contrast with the 3-5-yr population cycles that are typical of graminivorous small mammals in more complex food webs, suggesting that top-down regulation is normally an important component of such dynamics. Funding provided by: Norges ForskningsrådCrossref Funder Registry ID: http://dx.doi.org/10.13039/501100005416Award Number: Funding provided by: Governor of Svalbard*Crossref Funder Registry ID: Award Number: Funding provided by: Nansen Endowment*Crossref Funder Registry ID: Award ... |
format |
Dataset |
author |
Fauteux, Dominique Stien, Audun Yoccoz, Nigel G. Fuglei, Eva Ims, Rolf A. |
spellingShingle |
Fauteux, Dominique Stien, Audun Yoccoz, Nigel G. Fuglei, Eva Ims, Rolf A. Capture-recapture dataset of Svalbard voles (1990-2007) with trap locations and rain-on-snow measurements |
author_facet |
Fauteux, Dominique Stien, Audun Yoccoz, Nigel G. Fuglei, Eva Ims, Rolf A. |
author_sort |
Fauteux, Dominique |
title |
Capture-recapture dataset of Svalbard voles (1990-2007) with trap locations and rain-on-snow measurements |
title_short |
Capture-recapture dataset of Svalbard voles (1990-2007) with trap locations and rain-on-snow measurements |
title_full |
Capture-recapture dataset of Svalbard voles (1990-2007) with trap locations and rain-on-snow measurements |
title_fullStr |
Capture-recapture dataset of Svalbard voles (1990-2007) with trap locations and rain-on-snow measurements |
title_full_unstemmed |
Capture-recapture dataset of Svalbard voles (1990-2007) with trap locations and rain-on-snow measurements |
title_sort |
capture-recapture dataset of svalbard voles (1990-2007) with trap locations and rain-on-snow measurements |
publishDate |
2021 |
url |
https://zenodo.org/record/5301579 https://doi.org/10.5061/dryad.hhmgqnkhd |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Svalbard |
genre_facet |
Arctic Svalbard |
op_relation |
https://zenodo.org/communities/dryad https://zenodo.org/record/5301579 https://doi.org/10.5061/dryad.hhmgqnkhd oai:zenodo.org:5301579 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.hhmgqnkhd |
_version_ |
1766332714911268864 |