Effects of local density dependence and temperature on the spatial synchrony of marine fish populations
Disentangling empirically the many processes affecting spatial population synchrony is a challenge in population ecology. Two processes that could have major effects on the spatial synchrony of wild population dynamics are density dependence and variation in environmental conditions like temperature...
Published in: | Journal of Animal Ecology |
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Language: | English |
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John Wiley & Sons Ltd on behalf of British Ecological Society.
2023
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Online Access: | https://hdl.handle.net/11250/3103965 https://doi.org/10.1111/1365-2656.14008 |
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/3103965 2023-12-24T10:15:21+01:00 Effects of local density dependence and temperature on the spatial synchrony of marine fish populations Marquez, Jonatan Herfindal, Ivar Sæther, Bernt-Erik Aanes, Sondre Salthaug, Are Lee, Aline Magdalena 2023 application/pdf https://hdl.handle.net/11250/3103965 https://doi.org/10.1111/1365-2656.14008 eng eng John Wiley & Sons Ltd on behalf of British Ecological Society. Norges forskningsråd: 223257 Norges forskningsråd: 244647 urn:issn:0021-8790 https://hdl.handle.net/11250/3103965 https://doi.org/10.1111/1365-2656.14008 cristin:2182808 Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no 2214-2227 92 Journal of Animal Ecology 11 Peer reviewed Journal article 2023 ftntnutrondheimi https://doi.org/10.1111/1365-2656.14008 2023-11-29T23:46:54Z Disentangling empirically the many processes affecting spatial population synchrony is a challenge in population ecology. Two processes that could have major effects on the spatial synchrony of wild population dynamics are density dependence and variation in environmental conditions like temperature. Understanding these effects is crucial for predicting the effects of climate change on local and regional population dynamics. We quantified the direct contribution of local temperature and density dependence to spatial synchrony in the population dynamics of nine fish species inhabiting the Barents Sea. First, we estimated the degree to which the annual spatial autocorrelations in density are influenced by temperature. Second, we estimated and mapped the local effects of temperature and strength of density dependence on annual changes in density. Finally, we measured the relative effects of temperature and density dependence on the spatial synchrony in changes in density. Temperature influenced the annual spatial autocorrelation in density more in species with greater affinities to the benthos and to warmer waters. Temperature correlated positively with changes in density in the eastern Barents Sea for most species. Temperature had a weak synchronizing effect on density dynamics, while increasing strength of density dependence consistently desynchronised the dynamics. Quantifying the relative effects of different processes affecting population synchrony is important to better predict how population dynamics might change when environmental conditions change. Here, high degrees of spatial synchrony in the population dynamics remained unexplained by local temperature and density dependence, confirming the presence of additional synchronizing drivers, such as trophic interactions or harvesting. publishedVersion Article in Journal/Newspaper Barents Sea NTNU Open Archive (Norwegian University of Science and Technology) Barents Sea Journal of Animal Ecology 92 11 2214 2227 |
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Open Polar |
collection |
NTNU Open Archive (Norwegian University of Science and Technology) |
op_collection_id |
ftntnutrondheimi |
language |
English |
description |
Disentangling empirically the many processes affecting spatial population synchrony is a challenge in population ecology. Two processes that could have major effects on the spatial synchrony of wild population dynamics are density dependence and variation in environmental conditions like temperature. Understanding these effects is crucial for predicting the effects of climate change on local and regional population dynamics. We quantified the direct contribution of local temperature and density dependence to spatial synchrony in the population dynamics of nine fish species inhabiting the Barents Sea. First, we estimated the degree to which the annual spatial autocorrelations in density are influenced by temperature. Second, we estimated and mapped the local effects of temperature and strength of density dependence on annual changes in density. Finally, we measured the relative effects of temperature and density dependence on the spatial synchrony in changes in density. Temperature influenced the annual spatial autocorrelation in density more in species with greater affinities to the benthos and to warmer waters. Temperature correlated positively with changes in density in the eastern Barents Sea for most species. Temperature had a weak synchronizing effect on density dynamics, while increasing strength of density dependence consistently desynchronised the dynamics. Quantifying the relative effects of different processes affecting population synchrony is important to better predict how population dynamics might change when environmental conditions change. Here, high degrees of spatial synchrony in the population dynamics remained unexplained by local temperature and density dependence, confirming the presence of additional synchronizing drivers, such as trophic interactions or harvesting. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Marquez, Jonatan Herfindal, Ivar Sæther, Bernt-Erik Aanes, Sondre Salthaug, Are Lee, Aline Magdalena |
spellingShingle |
Marquez, Jonatan Herfindal, Ivar Sæther, Bernt-Erik Aanes, Sondre Salthaug, Are Lee, Aline Magdalena Effects of local density dependence and temperature on the spatial synchrony of marine fish populations |
author_facet |
Marquez, Jonatan Herfindal, Ivar Sæther, Bernt-Erik Aanes, Sondre Salthaug, Are Lee, Aline Magdalena |
author_sort |
Marquez, Jonatan |
title |
Effects of local density dependence and temperature on the spatial synchrony of marine fish populations |
title_short |
Effects of local density dependence and temperature on the spatial synchrony of marine fish populations |
title_full |
Effects of local density dependence and temperature on the spatial synchrony of marine fish populations |
title_fullStr |
Effects of local density dependence and temperature on the spatial synchrony of marine fish populations |
title_full_unstemmed |
Effects of local density dependence and temperature on the spatial synchrony of marine fish populations |
title_sort |
effects of local density dependence and temperature on the spatial synchrony of marine fish populations |
publisher |
John Wiley & Sons Ltd on behalf of British Ecological Society. |
publishDate |
2023 |
url |
https://hdl.handle.net/11250/3103965 https://doi.org/10.1111/1365-2656.14008 |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
Barents Sea |
genre_facet |
Barents Sea |
op_source |
2214-2227 92 Journal of Animal Ecology 11 |
op_relation |
Norges forskningsråd: 223257 Norges forskningsråd: 244647 urn:issn:0021-8790 https://hdl.handle.net/11250/3103965 https://doi.org/10.1111/1365-2656.14008 cristin:2182808 |
op_rights |
Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no |
op_doi |
https://doi.org/10.1111/1365-2656.14008 |
container_title |
Journal of Animal Ecology |
container_volume |
92 |
container_issue |
11 |
container_start_page |
2214 |
op_container_end_page |
2227 |
_version_ |
1786202119428112384 |