Scavenger community structure along an environmental gradient from boreal forest to alpine tundra in Scandinavia
Scavengers can have strong impacts on food webs, and awareness of their role in ecosystems has increased during the last decades. In our study, we used baited cam-era traps to quantify the structure of the winter scavenger community in central Scandinavia across a forest–alpine continuum and assess...
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Online Access: | https://hdl.handle.net/11250/3018372 https://doi.org/10.1002/ece3.6834 |
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fthsinnlandet:oai:brage.inn.no:11250/3018372 2024-03-03T08:40:23+00:00 Scavenger community structure along an environmental gradient from boreal forest to alpine tundra in Scandinavia Gomo, Gjermund Rød-Eriksen, Lars Andreassen, Harry Peter Mattisson, Jenny Odden, Morten Devineau, Olivier Eide, Nina Elisabeth 2020 application/pdf https://hdl.handle.net/11250/3018372 https://doi.org/10.1002/ece3.6834 eng eng Norges forskningsråd: 244554 Andre: Norwegian Environment Agency EU/EU Life EU/EU/Interreg Sweden-Norway (Felles fjellrev I og 2) urn:issn:2045-7758 https://hdl.handle.net/11250/3018372 https://doi.org/10.1002/ece3.6834 cristin:1834499 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no 12860-12869 10 Ecology and Evolution alpine tundra bait boreal forest camera traps community scavengers VDP::Matematikk og Naturvitenskap: 400 Peer reviewed Journal article 2020 fthsinnlandet https://doi.org/10.1002/ece3.6834 2024-02-02T12:42:22Z Scavengers can have strong impacts on food webs, and awareness of their role in ecosystems has increased during the last decades. In our study, we used baited cam-era traps to quantify the structure of the winter scavenger community in central Scandinavia across a forest–alpine continuum and assess how climatic conditions affected spatial patterns of species occurrences at baits. Canonical correspondence analysis revealed that the main habitat type (forest or alpine tundra) and snow depth was main determinants of the community structure. According to a joint species dis-tribution model within the HMSC framework, species richness tended to be higher in forest than in alpine tundra habitat but was only weakly associated with temperature and snow depth. However, we observed stronger and more diverse impacts of these covariates on individual species. Occurrence at baits by habitat generalists (red fox, golden eagle, and common raven) typically increased at low temperatures and high snow depth, probably due to increased energetic demands and lower abundance of natural prey in harsh winter conditions. On the contrary, occurrence at baits by forest specialists (e.g., Eurasian jay) tended to decrease in deep snow, which is possibly a consequence of reduced bait detectability and accessibility. In general, the influence of environmental covariates on species richness and occurrence at baits was lower in alpine tundra than in forests, and habitat generalists dominated the scavenger communities in both forest and alpine tundra. Following forecasted climate change, altered environmental conditions are likely to cause range expansion of boreal species and range contraction of typical alpine species such as the arctic fox. Our results suggest that altered snow conditions will possibly be a main driver of changes in species community structure. publishedVersion Article in Journal/Newspaper Arctic Fox Arctic Climate change Tundra golden eagle Høgskolen i Innlandet: Brage INN Arctic Ecology and Evolution 10 23 12860 12869 |
institution |
Open Polar |
collection |
Høgskolen i Innlandet: Brage INN |
op_collection_id |
fthsinnlandet |
language |
English |
topic |
alpine tundra bait boreal forest camera traps community scavengers VDP::Matematikk og Naturvitenskap: 400 |
spellingShingle |
alpine tundra bait boreal forest camera traps community scavengers VDP::Matematikk og Naturvitenskap: 400 Gomo, Gjermund Rød-Eriksen, Lars Andreassen, Harry Peter Mattisson, Jenny Odden, Morten Devineau, Olivier Eide, Nina Elisabeth Scavenger community structure along an environmental gradient from boreal forest to alpine tundra in Scandinavia |
topic_facet |
alpine tundra bait boreal forest camera traps community scavengers VDP::Matematikk og Naturvitenskap: 400 |
description |
Scavengers can have strong impacts on food webs, and awareness of their role in ecosystems has increased during the last decades. In our study, we used baited cam-era traps to quantify the structure of the winter scavenger community in central Scandinavia across a forest–alpine continuum and assess how climatic conditions affected spatial patterns of species occurrences at baits. Canonical correspondence analysis revealed that the main habitat type (forest or alpine tundra) and snow depth was main determinants of the community structure. According to a joint species dis-tribution model within the HMSC framework, species richness tended to be higher in forest than in alpine tundra habitat but was only weakly associated with temperature and snow depth. However, we observed stronger and more diverse impacts of these covariates on individual species. Occurrence at baits by habitat generalists (red fox, golden eagle, and common raven) typically increased at low temperatures and high snow depth, probably due to increased energetic demands and lower abundance of natural prey in harsh winter conditions. On the contrary, occurrence at baits by forest specialists (e.g., Eurasian jay) tended to decrease in deep snow, which is possibly a consequence of reduced bait detectability and accessibility. In general, the influence of environmental covariates on species richness and occurrence at baits was lower in alpine tundra than in forests, and habitat generalists dominated the scavenger communities in both forest and alpine tundra. Following forecasted climate change, altered environmental conditions are likely to cause range expansion of boreal species and range contraction of typical alpine species such as the arctic fox. Our results suggest that altered snow conditions will possibly be a main driver of changes in species community structure. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Gomo, Gjermund Rød-Eriksen, Lars Andreassen, Harry Peter Mattisson, Jenny Odden, Morten Devineau, Olivier Eide, Nina Elisabeth |
author_facet |
Gomo, Gjermund Rød-Eriksen, Lars Andreassen, Harry Peter Mattisson, Jenny Odden, Morten Devineau, Olivier Eide, Nina Elisabeth |
author_sort |
Gomo, Gjermund |
title |
Scavenger community structure along an environmental gradient from boreal forest to alpine tundra in Scandinavia |
title_short |
Scavenger community structure along an environmental gradient from boreal forest to alpine tundra in Scandinavia |
title_full |
Scavenger community structure along an environmental gradient from boreal forest to alpine tundra in Scandinavia |
title_fullStr |
Scavenger community structure along an environmental gradient from boreal forest to alpine tundra in Scandinavia |
title_full_unstemmed |
Scavenger community structure along an environmental gradient from boreal forest to alpine tundra in Scandinavia |
title_sort |
scavenger community structure along an environmental gradient from boreal forest to alpine tundra in scandinavia |
publishDate |
2020 |
url |
https://hdl.handle.net/11250/3018372 https://doi.org/10.1002/ece3.6834 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Fox Arctic Climate change Tundra golden eagle |
genre_facet |
Arctic Fox Arctic Climate change Tundra golden eagle |
op_source |
12860-12869 10 Ecology and Evolution |
op_relation |
Norges forskningsråd: 244554 Andre: Norwegian Environment Agency EU/EU Life EU/EU/Interreg Sweden-Norway (Felles fjellrev I og 2) urn:issn:2045-7758 https://hdl.handle.net/11250/3018372 https://doi.org/10.1002/ece3.6834 cristin:1834499 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no |
op_doi |
https://doi.org/10.1002/ece3.6834 |
container_title |
Ecology and Evolution |
container_volume |
10 |
container_issue |
23 |
container_start_page |
12860 |
op_container_end_page |
12869 |
_version_ |
1792496078345469952 |