Impacts of predator-mediated interactions along a climatic gradient on the population dynamics of an alpine bird
According to classic theory, species’ population dynamics and distributions are less influenced by species interactions under harsh climatic conditions compared to under more benign climatic conditions. In alpine and boreal ecosystems in Fennoscandia, the cyclic dynamics of rodents strongly affect m...
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ftninstnf:oai:brage.nina.no:11250/2724502 2024-06-23T07:52:41+00:00 Impacts of predator-mediated interactions along a climatic gradient on the population dynamics of an alpine bird Bowler, Diana Elizabeth Kvasnes, Mikkel Andreas Jørnsøn Pedersen, Hans Christian Sandercock, Brett Nilsen, Erlend Birkeland Fennoscandia 2020 application/pdf https://hdl.handle.net/11250/2724502 eng eng urn:issn:0962-8452 https://hdl.handle.net/11250/2724502 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2020 The Authors. 287 Proceedings of the Royal Society of London. Biological Sciences 20202653 boreal ecosystems climate change indirect interactions population cycles predator–prey interactions VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 Peer reviewed Journal article 2020 ftninstnf 2024-06-07T03:57:56Z According to classic theory, species’ population dynamics and distributions are less influenced by species interactions under harsh climatic conditions compared to under more benign climatic conditions. In alpine and boreal ecosystems in Fennoscandia, the cyclic dynamics of rodents strongly affect many other species, including ground-nesting birds such as ptarmigan. According to the ‘alternative prey hypothesis’ (APH), the densities of ground-nesting birds and rodents are positively associated due to predator–prey dynamics and prey-switching. However, it remains unclear how the strength of these predator-mediated interactions change along a climatic harshness gradient in comparison with the effects of climatic variation. We built a hierarchical Bayesian model to estimate the sensitivity of ptarmigan populations to interannual variation in climate and rodent occurrence across Norway during 2007–2017. Ptarmigan abundance was positively linked with rodent occurrence, consistent with the APH. Moreover, we found that the link between ptarmigan abundance and rodent dynamics was strongest in colder regions. Our study highlights how species interactions play an important role in population dynamics of species at high latitudes and suggests that they can become even more important in the most climatically harsh regions publishedVersion Article in Journal/Newspaper Fennoscandia Norwegian Institute for Nature Research: Brage NINA Norway |
institution |
Open Polar |
collection |
Norwegian Institute for Nature Research: Brage NINA |
op_collection_id |
ftninstnf |
language |
English |
topic |
boreal ecosystems climate change indirect interactions population cycles predator–prey interactions VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 |
spellingShingle |
boreal ecosystems climate change indirect interactions population cycles predator–prey interactions VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 Bowler, Diana Elizabeth Kvasnes, Mikkel Andreas Jørnsøn Pedersen, Hans Christian Sandercock, Brett Nilsen, Erlend Birkeland Impacts of predator-mediated interactions along a climatic gradient on the population dynamics of an alpine bird |
topic_facet |
boreal ecosystems climate change indirect interactions population cycles predator–prey interactions VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 |
description |
According to classic theory, species’ population dynamics and distributions are less influenced by species interactions under harsh climatic conditions compared to under more benign climatic conditions. In alpine and boreal ecosystems in Fennoscandia, the cyclic dynamics of rodents strongly affect many other species, including ground-nesting birds such as ptarmigan. According to the ‘alternative prey hypothesis’ (APH), the densities of ground-nesting birds and rodents are positively associated due to predator–prey dynamics and prey-switching. However, it remains unclear how the strength of these predator-mediated interactions change along a climatic harshness gradient in comparison with the effects of climatic variation. We built a hierarchical Bayesian model to estimate the sensitivity of ptarmigan populations to interannual variation in climate and rodent occurrence across Norway during 2007–2017. Ptarmigan abundance was positively linked with rodent occurrence, consistent with the APH. Moreover, we found that the link between ptarmigan abundance and rodent dynamics was strongest in colder regions. Our study highlights how species interactions play an important role in population dynamics of species at high latitudes and suggests that they can become even more important in the most climatically harsh regions publishedVersion |
format |
Article in Journal/Newspaper |
author |
Bowler, Diana Elizabeth Kvasnes, Mikkel Andreas Jørnsøn Pedersen, Hans Christian Sandercock, Brett Nilsen, Erlend Birkeland |
author_facet |
Bowler, Diana Elizabeth Kvasnes, Mikkel Andreas Jørnsøn Pedersen, Hans Christian Sandercock, Brett Nilsen, Erlend Birkeland |
author_sort |
Bowler, Diana Elizabeth |
title |
Impacts of predator-mediated interactions along a climatic gradient on the population dynamics of an alpine bird |
title_short |
Impacts of predator-mediated interactions along a climatic gradient on the population dynamics of an alpine bird |
title_full |
Impacts of predator-mediated interactions along a climatic gradient on the population dynamics of an alpine bird |
title_fullStr |
Impacts of predator-mediated interactions along a climatic gradient on the population dynamics of an alpine bird |
title_full_unstemmed |
Impacts of predator-mediated interactions along a climatic gradient on the population dynamics of an alpine bird |
title_sort |
impacts of predator-mediated interactions along a climatic gradient on the population dynamics of an alpine bird |
publishDate |
2020 |
url |
https://hdl.handle.net/11250/2724502 |
op_coverage |
Fennoscandia |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Fennoscandia |
genre_facet |
Fennoscandia |
op_source |
287 Proceedings of the Royal Society of London. Biological Sciences 20202653 |
op_relation |
urn:issn:0962-8452 https://hdl.handle.net/11250/2724502 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2020 The Authors. |
_version_ |
1802644060813393920 |