Impact of landscape fragmentation and climate change on body size variation of bumblebees during the last century
Body size is a key parameter of organism fitness. While the impact of climate change on body size has received increasing attention, the long-term consequences of landscape fragmentation are still poorly known. These two major global threats may potentially induce opposite trends: the decrease of bo...
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ftzenodo:oai:zenodo.org:6229026 2023-05-15T15:01:48+02:00 Impact of landscape fragmentation and climate change on body size variation of bumblebees during the last century Gérard, Maxence 2022-02-22 https://zenodo.org/record/6229026 https://doi.org/10.5061/dryad.ttdz08kwg unknown https://zenodo.org/communities/dryad https://zenodo.org/record/6229026 https://doi.org/10.5061/dryad.ttdz08kwg oai:zenodo.org:6229026 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode info:eu-repo/semantics/other dataset 2022 ftzenodo https://doi.org/10.5061/dryad.ttdz08kwg 2023-03-10T22:04:14Z Body size is a key parameter of organism fitness. While the impact of climate change on body size has received increasing attention, the long-term consequences of landscape fragmentation are still poorly known. These two major global threats may potentially induce opposite trends: the decrease of body size in warmer environments (e.g. individuals developing faster) or the selection of larger individuals in fragmented habitats (e.g. large individuals more capable of reaching distant patches). We assessed the relationship between temperature and landscape fragmentation with mean body size during the last century, within four European regions (Austria, Belgium, England and above the Arctic circle in Scandinavia) and among queens of five bumblebee species. At the regional scale, we first analysed the variation over time of body size and the two hypothesised drivers, temperature and landscape fragmentation. Then, at the local landscape scale, we tested whether body size varied according to these drivers irrespective of the region. At the regional level, we observed a statistically clear increase of queen body size corresponding to an increase of landscape fragmentation (i.e. in Belgium and England). There was no increase of size when fragmentation did not increase (i.e. in Austria and above the Arctic Circle). Temperature also increased through time in all regions. At the local landscape scale, we found that all species were impacted by changes in both climate and landscape fragmentation but show different trends. The body size of the two largest species significantly increased at landscape level with higher fragmentation while body size of the two smallest species decreased with higher fragmentation. We highlight that, in a context of global changes, landscape fragmentation can also be a major driver of body size clines. Depending on the dispersal abilities of species, larger species could be positively selected for and overcome landscape fragmentation. Dataset Arctic Climate change Zenodo Arctic |
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Body size is a key parameter of organism fitness. While the impact of climate change on body size has received increasing attention, the long-term consequences of landscape fragmentation are still poorly known. These two major global threats may potentially induce opposite trends: the decrease of body size in warmer environments (e.g. individuals developing faster) or the selection of larger individuals in fragmented habitats (e.g. large individuals more capable of reaching distant patches). We assessed the relationship between temperature and landscape fragmentation with mean body size during the last century, within four European regions (Austria, Belgium, England and above the Arctic circle in Scandinavia) and among queens of five bumblebee species. At the regional scale, we first analysed the variation over time of body size and the two hypothesised drivers, temperature and landscape fragmentation. Then, at the local landscape scale, we tested whether body size varied according to these drivers irrespective of the region. At the regional level, we observed a statistically clear increase of queen body size corresponding to an increase of landscape fragmentation (i.e. in Belgium and England). There was no increase of size when fragmentation did not increase (i.e. in Austria and above the Arctic Circle). Temperature also increased through time in all regions. At the local landscape scale, we found that all species were impacted by changes in both climate and landscape fragmentation but show different trends. The body size of the two largest species significantly increased at landscape level with higher fragmentation while body size of the two smallest species decreased with higher fragmentation. We highlight that, in a context of global changes, landscape fragmentation can also be a major driver of body size clines. Depending on the dispersal abilities of species, larger species could be positively selected for and overcome landscape fragmentation. |
format |
Dataset |
author |
Gérard, Maxence |
spellingShingle |
Gérard, Maxence Impact of landscape fragmentation and climate change on body size variation of bumblebees during the last century |
author_facet |
Gérard, Maxence |
author_sort |
Gérard, Maxence |
title |
Impact of landscape fragmentation and climate change on body size variation of bumblebees during the last century |
title_short |
Impact of landscape fragmentation and climate change on body size variation of bumblebees during the last century |
title_full |
Impact of landscape fragmentation and climate change on body size variation of bumblebees during the last century |
title_fullStr |
Impact of landscape fragmentation and climate change on body size variation of bumblebees during the last century |
title_full_unstemmed |
Impact of landscape fragmentation and climate change on body size variation of bumblebees during the last century |
title_sort |
impact of landscape fragmentation and climate change on body size variation of bumblebees during the last century |
publishDate |
2022 |
url |
https://zenodo.org/record/6229026 https://doi.org/10.5061/dryad.ttdz08kwg |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change |
genre_facet |
Arctic Climate change |
op_relation |
https://zenodo.org/communities/dryad https://zenodo.org/record/6229026 https://doi.org/10.5061/dryad.ttdz08kwg oai:zenodo.org:6229026 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.ttdz08kwg |
_version_ |
1766333809829085184 |