Local flexibility in feeding behaviour and contrasting microhabitat use of an omnivore across latitudes
Embargo until 19 May 2022 As the environment is getting warmer and species are redistributed, consumers can be forced to adjust their interactions with available prey, and this could have cascading effects within food webs. To better understand the capacity for foraging flexibility, our study aimed...
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Online Access: | https://hdl.handle.net/11250/2772801 https://doi.org/10.1007/s00442-021-04936-5 |
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ftnorskinstvf:oai:niva.brage.unit.no:11250/2772801 2023-05-15T17:41:34+02:00 Local flexibility in feeding behaviour and contrasting microhabitat use of an omnivore across latitudes Leclerc, Jean-Charles de Bettignies, Thibaut de Bettignies, Florian Christie, Hartvig C Franco, João N Leroux, Cédric Davoult, Dominique Pedersen, Morten F Filbee-Dexter, Karen Wernberg, Thomas 2021 application/pdf https://hdl.handle.net/11250/2772801 https://doi.org/10.1007/s00442-021-04936-5 eng eng Springer Oecologia. 2021, 196, 441-453. urn:issn:0029-8549 https://hdl.handle.net/11250/2772801 https://doi.org/10.1007/s00442-021-04936-5 cristin:1922386 441-453 196 Oecologia Peer reviewed Journal article 2021 ftnorskinstvf https://doi.org/10.1007/s00442-021-04936-5 2023-02-21T08:46:34Z Embargo until 19 May 2022 As the environment is getting warmer and species are redistributed, consumers can be forced to adjust their interactions with available prey, and this could have cascading effects within food webs. To better understand the capacity for foraging flexibility, our study aimed to determine the diet variability of an ectotherm omnivore inhabiting kelp forests, the sea urchin Echinus esculentus, along its entire latitudinal distribution in the northeast Atlantic. Using a combination of gut content and stable isotope analyses, we determined the diet and trophic position of sea urchins at sites in Portugal (42° N), France (49° N), southern Norway (63° N), and northern Norway (70° N), and related these results to the local abundance and distribution of putative food items. With mean estimated trophic levels ranging from 2.4 to 4.6, omnivory and diet varied substantially within and between sites but not across latitudes. Diet composition generally reflected prey availability within epiphyte or understorey assemblages, with local affinities demonstrating that the sea urchin adjusts its foraging to match the small-scale distribution of food items. A net “preference” for epiphytic food sources was found in northern Norway, where understorey food was limited compared to other regions. We conclude that diet change may occur in response to food source redistribution at multiple spatial scales (microhabitats, sites, regions). Across these scales, the way that key consumers alter their foraging in response to food availability can have important implication for food web dynamics and ecosystem functions along current and future environmental gradients. acceptedVersion Article in Journal/Newspaper Northeast Atlantic Northern Norway Norwegian Institute for Water research: NIVA Open Access Archive (Brage) Norway Oecologia 196 2 441 453 |
institution |
Open Polar |
collection |
Norwegian Institute for Water research: NIVA Open Access Archive (Brage) |
op_collection_id |
ftnorskinstvf |
language |
English |
description |
Embargo until 19 May 2022 As the environment is getting warmer and species are redistributed, consumers can be forced to adjust their interactions with available prey, and this could have cascading effects within food webs. To better understand the capacity for foraging flexibility, our study aimed to determine the diet variability of an ectotherm omnivore inhabiting kelp forests, the sea urchin Echinus esculentus, along its entire latitudinal distribution in the northeast Atlantic. Using a combination of gut content and stable isotope analyses, we determined the diet and trophic position of sea urchins at sites in Portugal (42° N), France (49° N), southern Norway (63° N), and northern Norway (70° N), and related these results to the local abundance and distribution of putative food items. With mean estimated trophic levels ranging from 2.4 to 4.6, omnivory and diet varied substantially within and between sites but not across latitudes. Diet composition generally reflected prey availability within epiphyte or understorey assemblages, with local affinities demonstrating that the sea urchin adjusts its foraging to match the small-scale distribution of food items. A net “preference” for epiphytic food sources was found in northern Norway, where understorey food was limited compared to other regions. We conclude that diet change may occur in response to food source redistribution at multiple spatial scales (microhabitats, sites, regions). Across these scales, the way that key consumers alter their foraging in response to food availability can have important implication for food web dynamics and ecosystem functions along current and future environmental gradients. acceptedVersion |
format |
Article in Journal/Newspaper |
author |
Leclerc, Jean-Charles de Bettignies, Thibaut de Bettignies, Florian Christie, Hartvig C Franco, João N Leroux, Cédric Davoult, Dominique Pedersen, Morten F Filbee-Dexter, Karen Wernberg, Thomas |
spellingShingle |
Leclerc, Jean-Charles de Bettignies, Thibaut de Bettignies, Florian Christie, Hartvig C Franco, João N Leroux, Cédric Davoult, Dominique Pedersen, Morten F Filbee-Dexter, Karen Wernberg, Thomas Local flexibility in feeding behaviour and contrasting microhabitat use of an omnivore across latitudes |
author_facet |
Leclerc, Jean-Charles de Bettignies, Thibaut de Bettignies, Florian Christie, Hartvig C Franco, João N Leroux, Cédric Davoult, Dominique Pedersen, Morten F Filbee-Dexter, Karen Wernberg, Thomas |
author_sort |
Leclerc, Jean-Charles |
title |
Local flexibility in feeding behaviour and contrasting microhabitat use of an omnivore across latitudes |
title_short |
Local flexibility in feeding behaviour and contrasting microhabitat use of an omnivore across latitudes |
title_full |
Local flexibility in feeding behaviour and contrasting microhabitat use of an omnivore across latitudes |
title_fullStr |
Local flexibility in feeding behaviour and contrasting microhabitat use of an omnivore across latitudes |
title_full_unstemmed |
Local flexibility in feeding behaviour and contrasting microhabitat use of an omnivore across latitudes |
title_sort |
local flexibility in feeding behaviour and contrasting microhabitat use of an omnivore across latitudes |
publisher |
Springer |
publishDate |
2021 |
url |
https://hdl.handle.net/11250/2772801 https://doi.org/10.1007/s00442-021-04936-5 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Northeast Atlantic Northern Norway |
genre_facet |
Northeast Atlantic Northern Norway |
op_source |
441-453 196 Oecologia |
op_relation |
Oecologia. 2021, 196, 441-453. urn:issn:0029-8549 https://hdl.handle.net/11250/2772801 https://doi.org/10.1007/s00442-021-04936-5 cristin:1922386 |
op_doi |
https://doi.org/10.1007/s00442-021-04936-5 |
container_title |
Oecologia |
container_volume |
196 |
container_issue |
2 |
container_start_page |
441 |
op_container_end_page |
453 |
_version_ |
1766143203167174656 |