Supplementary material from "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 aff...
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ftdatacite:10.6084/m9.figshare.c.5230681 2023-05-15T16:11:57+02:00 Supplementary material from "Impacts of predator-mediated interactions along a climatic gradient on the population dynamics of an alpine bird" Bowler, Diana E. Kvasnes, Mikkel A. J. Pedersen, Hans C. Sandercock, Brett K. Nilsen, Erlend B. 2020 https://dx.doi.org/10.6084/m9.figshare.c.5230681 https://rs.figshare.com/collections/Supplementary_material_from_Impacts_of_predator-mediated_interactions_along_a_climatic_gradient_on_the_population_dynamics_of_an_alpine_bird_/5230681 unknown The Royal Society https://dx.doi.org/10.1098/rspb.2020.2653 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Ecology FOS Biological sciences Collection article 2020 ftdatacite https://doi.org/10.6084/m9.figshare.c.5230681 https://doi.org/10.1098/rspb.2020.2653 2021-11-05T12:55:41Z 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 for the population dynamics of species at higher latitudes and suggests that they can become even more important in the most climatically harsh regions. Article in Journal/Newspaper Fennoscandia DataCite Metadata Store (German National Library of Science and Technology) Norway |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Ecology FOS Biological sciences |
spellingShingle |
Ecology FOS Biological sciences Bowler, Diana E. Kvasnes, Mikkel A. J. Pedersen, Hans C. Sandercock, Brett K. Nilsen, Erlend B. Supplementary material from "Impacts of predator-mediated interactions along a climatic gradient on the population dynamics of an alpine bird" |
topic_facet |
Ecology FOS Biological sciences |
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 for the population dynamics of species at higher latitudes and suggests that they can become even more important in the most climatically harsh regions. |
format |
Article in Journal/Newspaper |
author |
Bowler, Diana E. Kvasnes, Mikkel A. J. Pedersen, Hans C. Sandercock, Brett K. Nilsen, Erlend B. |
author_facet |
Bowler, Diana E. Kvasnes, Mikkel A. J. Pedersen, Hans C. Sandercock, Brett K. Nilsen, Erlend B. |
author_sort |
Bowler, Diana E. |
title |
Supplementary material from "Impacts of predator-mediated interactions along a climatic gradient on the population dynamics of an alpine bird" |
title_short |
Supplementary material from "Impacts of predator-mediated interactions along a climatic gradient on the population dynamics of an alpine bird" |
title_full |
Supplementary material from "Impacts of predator-mediated interactions along a climatic gradient on the population dynamics of an alpine bird" |
title_fullStr |
Supplementary material from "Impacts of predator-mediated interactions along a climatic gradient on the population dynamics of an alpine bird" |
title_full_unstemmed |
Supplementary material from "Impacts of predator-mediated interactions along a climatic gradient on the population dynamics of an alpine bird" |
title_sort |
supplementary material from "impacts of predator-mediated interactions along a climatic gradient on the population dynamics of an alpine bird" |
publisher |
The Royal Society |
publishDate |
2020 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.5230681 https://rs.figshare.com/collections/Supplementary_material_from_Impacts_of_predator-mediated_interactions_along_a_climatic_gradient_on_the_population_dynamics_of_an_alpine_bird_/5230681 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Fennoscandia |
genre_facet |
Fennoscandia |
op_relation |
https://dx.doi.org/10.1098/rspb.2020.2653 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.5230681 https://doi.org/10.1098/rspb.2020.2653 |
_version_ |
1765997169035182080 |