Population consequences of climate change through effects on functional traits of lentic brown trout in the sub-Arctic
Abstract Climate-induced plasticity in functional traits has received recent attention due to the immense importance phenotypic variation plays in population level responses. Here, we explore the effect of different climate-change scenarios on lentic populations of a freshwater ectotherm, the brown...
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ftdoajarticles:oai:doaj.org/article:0910aeadf1f54ca5b0842dede25a5d54 2023-05-15T15:08:27+02:00 Population consequences of climate change through effects on functional traits of lentic brown trout in the sub-Arctic Kim Magnus Bærum Anders G. Finstad Eva Marita Ulvan Thrond O. Haugen 2021-07-01T00:00:00Z https://doi.org/10.1038/s41598-021-94350-x https://doaj.org/article/0910aeadf1f54ca5b0842dede25a5d54 EN eng Nature Portfolio https://doi.org/10.1038/s41598-021-94350-x https://doaj.org/toc/2045-2322 doi:10.1038/s41598-021-94350-x 2045-2322 https://doaj.org/article/0910aeadf1f54ca5b0842dede25a5d54 Scientific Reports, Vol 11, Iss 1, Pp 1-12 (2021) Medicine R Science Q article 2021 ftdoajarticles https://doi.org/10.1038/s41598-021-94350-x 2022-12-31T09:20:37Z Abstract Climate-induced plasticity in functional traits has received recent attention due to the immense importance phenotypic variation plays in population level responses. Here, we explore the effect of different climate-change scenarios on lentic populations of a freshwater ectotherm, the brown trout (Salmo trutta L.), through climate effects on functional traits. We first parameterize models of climate variables on growth, spawning probability and fecundity. The models are utilized to inform a dynamic age-structured projection matrix, enabling long-term population viability projections under climate and population density variation. Ambient temperature and winter conditions had a substantial effect on population growth rate. In general, warmer summer temperatures resulted in faster growth rates for young fish but ended in smaller size at age as fish got older. Increasing summer temperatures also induced maturation at younger age and smaller size. In addition, we found effects of first-year growth on later growth trajectories for a fish, indicating that environmental conditions experienced the first year will also influence size at age later in life. At the population level, increasing temperatures average (up to 4 °C increase in areas with mean summer temperature at approximately 12 °C) resulted in a positive effect on population growth rate (i.e. smaller but more fish) during climate simulations including increasing and more variable temperatures. Article in Journal/Newspaper Arctic Climate change Directory of Open Access Journals: DOAJ Articles Arctic Scientific Reports 11 1 |
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Medicine R Science Q |
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Medicine R Science Q Kim Magnus Bærum Anders G. Finstad Eva Marita Ulvan Thrond O. Haugen Population consequences of climate change through effects on functional traits of lentic brown trout in the sub-Arctic |
topic_facet |
Medicine R Science Q |
description |
Abstract Climate-induced plasticity in functional traits has received recent attention due to the immense importance phenotypic variation plays in population level responses. Here, we explore the effect of different climate-change scenarios on lentic populations of a freshwater ectotherm, the brown trout (Salmo trutta L.), through climate effects on functional traits. We first parameterize models of climate variables on growth, spawning probability and fecundity. The models are utilized to inform a dynamic age-structured projection matrix, enabling long-term population viability projections under climate and population density variation. Ambient temperature and winter conditions had a substantial effect on population growth rate. In general, warmer summer temperatures resulted in faster growth rates for young fish but ended in smaller size at age as fish got older. Increasing summer temperatures also induced maturation at younger age and smaller size. In addition, we found effects of first-year growth on later growth trajectories for a fish, indicating that environmental conditions experienced the first year will also influence size at age later in life. At the population level, increasing temperatures average (up to 4 °C increase in areas with mean summer temperature at approximately 12 °C) resulted in a positive effect on population growth rate (i.e. smaller but more fish) during climate simulations including increasing and more variable temperatures. |
format |
Article in Journal/Newspaper |
author |
Kim Magnus Bærum Anders G. Finstad Eva Marita Ulvan Thrond O. Haugen |
author_facet |
Kim Magnus Bærum Anders G. Finstad Eva Marita Ulvan Thrond O. Haugen |
author_sort |
Kim Magnus Bærum |
title |
Population consequences of climate change through effects on functional traits of lentic brown trout in the sub-Arctic |
title_short |
Population consequences of climate change through effects on functional traits of lentic brown trout in the sub-Arctic |
title_full |
Population consequences of climate change through effects on functional traits of lentic brown trout in the sub-Arctic |
title_fullStr |
Population consequences of climate change through effects on functional traits of lentic brown trout in the sub-Arctic |
title_full_unstemmed |
Population consequences of climate change through effects on functional traits of lentic brown trout in the sub-Arctic |
title_sort |
population consequences of climate change through effects on functional traits of lentic brown trout in the sub-arctic |
publisher |
Nature Portfolio |
publishDate |
2021 |
url |
https://doi.org/10.1038/s41598-021-94350-x https://doaj.org/article/0910aeadf1f54ca5b0842dede25a5d54 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change |
genre_facet |
Arctic Climate change |
op_source |
Scientific Reports, Vol 11, Iss 1, Pp 1-12 (2021) |
op_relation |
https://doi.org/10.1038/s41598-021-94350-x https://doaj.org/toc/2045-2322 doi:10.1038/s41598-021-94350-x 2045-2322 https://doaj.org/article/0910aeadf1f54ca5b0842dede25a5d54 |
op_doi |
https://doi.org/10.1038/s41598-021-94350-x |
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Scientific Reports |
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11 |
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1 |
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1766339818690707456 |