Population niche breadth and individual trophic specialisation of fish along a climate-productivity gradient
Abstract A mechanistic understanding of how environmental change affects trophic ecology of fish at the individual and population level remains elusive. To address this, we conducted a space-for-time approach incorporating environmental gradients (temperature, precipitation and nutrients), lake morp...
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Online Access: | http://dx.doi.org/10.1007/s11160-021-09687-3 https://link.springer.com/content/pdf/10.1007/s11160-021-09687-3.pdf https://link.springer.com/article/10.1007/s11160-021-09687-3/fulltext.html |
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crspringernat:10.1007/s11160-021-09687-3 2023-05-15T18:28:36+02:00 Population niche breadth and individual trophic specialisation of fish along a climate-productivity gradient Sánchez-Hernández, Javier Hayden, Brian Harrod, Chris Kahilainen, Kimmo K. academy of finland european regional development fund millennium science initiative ministry of agriculture, forestry and fisheries inari municipality biological interactions graduate school Universidad Rey Juan Carlos 2021 http://dx.doi.org/10.1007/s11160-021-09687-3 https://link.springer.com/content/pdf/10.1007/s11160-021-09687-3.pdf https://link.springer.com/article/10.1007/s11160-021-09687-3/fulltext.html en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Reviews in Fish Biology and Fisheries volume 31, issue 4, page 1025-1043 ISSN 0960-3166 1573-5184 Aquatic Science journal-article 2021 crspringernat https://doi.org/10.1007/s11160-021-09687-3 2022-01-04T11:41:58Z Abstract A mechanistic understanding of how environmental change affects trophic ecology of fish at the individual and population level remains elusive. To address this, we conducted a space-for-time approach incorporating environmental gradients (temperature, precipitation and nutrients), lake morphometry (visibility, depth and area), fish communities (richness, competition and predation), prey availability (richness and density) and feeding (population niche breadth and individual trophic specialisation) for 15 native fish taxa belonging to different thermal guilds from 35 subarctic lakes along a marked climate-productivity gradient corresponding to future climate change predictions. We revealed significant and contrasting responses from two generalist species that are abundant and widely distributed in the region. The cold-water adapted European whitefish ( Coregonus lavaretus ) reduced individual specialisation in warmer and more productive lakes. Conversely, the cool-water adapted Eurasian perch ( Perca fluviatilis ) showed increased levels of individual specialism along climate-productivity gradient. Although whitefish and perch differed in the way they consumed prey along the climate-productivity gradient, they both switched from consumption of zooplankton in cooler, less productive lakes, to macrozoobenthos in warmer, more productive lakes. Species with specialist benthic or pelagic feeding did not show significant changes in trophic ecology along the gradient. We conclude that generalist consumers, such as warmer adapted perch, have clear advantages over colder and clear-water specialised species or morphs through their capacity to undergo reciprocal benthic–pelagic switches in feeding associated with environmental change. The capacity to show trophic flexibility in warmer and more productive lakes is likely a key trait for species dominance in future communities of high latitudes under climate change. Article in Journal/Newspaper Subarctic Springer Nature (via Crossref) Reviews in Fish Biology and Fisheries 31 4 1025 1043 |
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Springer Nature (via Crossref) |
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English |
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Aquatic Science |
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Aquatic Science Sánchez-Hernández, Javier Hayden, Brian Harrod, Chris Kahilainen, Kimmo K. Population niche breadth and individual trophic specialisation of fish along a climate-productivity gradient |
topic_facet |
Aquatic Science |
description |
Abstract A mechanistic understanding of how environmental change affects trophic ecology of fish at the individual and population level remains elusive. To address this, we conducted a space-for-time approach incorporating environmental gradients (temperature, precipitation and nutrients), lake morphometry (visibility, depth and area), fish communities (richness, competition and predation), prey availability (richness and density) and feeding (population niche breadth and individual trophic specialisation) for 15 native fish taxa belonging to different thermal guilds from 35 subarctic lakes along a marked climate-productivity gradient corresponding to future climate change predictions. We revealed significant and contrasting responses from two generalist species that are abundant and widely distributed in the region. The cold-water adapted European whitefish ( Coregonus lavaretus ) reduced individual specialisation in warmer and more productive lakes. Conversely, the cool-water adapted Eurasian perch ( Perca fluviatilis ) showed increased levels of individual specialism along climate-productivity gradient. Although whitefish and perch differed in the way they consumed prey along the climate-productivity gradient, they both switched from consumption of zooplankton in cooler, less productive lakes, to macrozoobenthos in warmer, more productive lakes. Species with specialist benthic or pelagic feeding did not show significant changes in trophic ecology along the gradient. We conclude that generalist consumers, such as warmer adapted perch, have clear advantages over colder and clear-water specialised species or morphs through their capacity to undergo reciprocal benthic–pelagic switches in feeding associated with environmental change. The capacity to show trophic flexibility in warmer and more productive lakes is likely a key trait for species dominance in future communities of high latitudes under climate change. |
author2 |
academy of finland european regional development fund millennium science initiative ministry of agriculture, forestry and fisheries inari municipality biological interactions graduate school Universidad Rey Juan Carlos |
format |
Article in Journal/Newspaper |
author |
Sánchez-Hernández, Javier Hayden, Brian Harrod, Chris Kahilainen, Kimmo K. |
author_facet |
Sánchez-Hernández, Javier Hayden, Brian Harrod, Chris Kahilainen, Kimmo K. |
author_sort |
Sánchez-Hernández, Javier |
title |
Population niche breadth and individual trophic specialisation of fish along a climate-productivity gradient |
title_short |
Population niche breadth and individual trophic specialisation of fish along a climate-productivity gradient |
title_full |
Population niche breadth and individual trophic specialisation of fish along a climate-productivity gradient |
title_fullStr |
Population niche breadth and individual trophic specialisation of fish along a climate-productivity gradient |
title_full_unstemmed |
Population niche breadth and individual trophic specialisation of fish along a climate-productivity gradient |
title_sort |
population niche breadth and individual trophic specialisation of fish along a climate-productivity gradient |
publisher |
Springer Science and Business Media LLC |
publishDate |
2021 |
url |
http://dx.doi.org/10.1007/s11160-021-09687-3 https://link.springer.com/content/pdf/10.1007/s11160-021-09687-3.pdf https://link.springer.com/article/10.1007/s11160-021-09687-3/fulltext.html |
genre |
Subarctic |
genre_facet |
Subarctic |
op_source |
Reviews in Fish Biology and Fisheries volume 31, issue 4, page 1025-1043 ISSN 0960-3166 1573-5184 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1007/s11160-021-09687-3 |
container_title |
Reviews in Fish Biology and Fisheries |
container_volume |
31 |
container_issue |
4 |
container_start_page |
1025 |
op_container_end_page |
1043 |
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1766211128056086528 |