Data from: Mesoscale activity facilitates energy gain in a top predator
How animal movement decisions interact with the distribution of resources to shape individual performance is a key question in ecology. However, links between spatial and behavioural ecology and fitness consequences are poorly understood because the outcomes of individual resource selection decision...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:109777 2023-07-02T03:32:08+02:00 Data from: Mesoscale activity facilitates energy gain in a top predator Abrahms, Briana Scales, Kylie Hazen, Elliott Bograd, Steven Schick, Robert Robinson, Patrick Costa, Daniel 2018-07-25T15:35:08.000+02:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-1s-ax3j https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:109777 unknown doi:10.5061/dryad.2v10hs6/1 http://nbn-resolving.org/urn:nbn:nl:ui:13-1s-ax3j doi:10.5061/dryad.2v10hs6 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:109777 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2018 ftdans https://doi.org/10.5061/dryad.2v10hs6/110.5061/dryad.2v10hs6 2023-06-13T13:00:00Z How animal movement decisions interact with the distribution of resources to shape individual performance is a key question in ecology. However, links between spatial and behavioural ecology and fitness consequences are poorly understood because the outcomes of individual resource selection decisions, such as energy intake, are rarely measured. In the open ocean, mesoscale features (~10-100 km) such as fronts and eddies can aggregate prey and thereby drive the distribution of foraging vertebrates through bottom-up biophysical coupling. These productive features are known to attract predators, yet their role in facilitating energy transfer to top predators is opaque. We investigated the use of mesoscale features by migrating northern elephant seals and quantified the corresponding energetic gains from the seals’ foraging patterns at a daily resolution. Migrating elephant seals modified their diving behaviour and selected for mesoscale features when foraging. Daily energy gain increased significantly with increasing mesoscale activity, indicating that the physical environment can influence predator fitness at fine temporal scales. Results show that areas of high mesoscale activity not only attract top predators as foraging hotspots, but also lead to increased energy transfer across trophic levels. Our study provides evidence that the physical environment is an important factor in controlling energy flow to top predators by setting the stage for variation in resource availability. Such understanding is critical for assessing how changes in the environment and resource distribution will affect individual fitness and food web dynamics. Other/Unknown Material Elephant Seals Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
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Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
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Life sciences medicine and health care |
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Life sciences medicine and health care Abrahms, Briana Scales, Kylie Hazen, Elliott Bograd, Steven Schick, Robert Robinson, Patrick Costa, Daniel Data from: Mesoscale activity facilitates energy gain in a top predator |
topic_facet |
Life sciences medicine and health care |
description |
How animal movement decisions interact with the distribution of resources to shape individual performance is a key question in ecology. However, links between spatial and behavioural ecology and fitness consequences are poorly understood because the outcomes of individual resource selection decisions, such as energy intake, are rarely measured. In the open ocean, mesoscale features (~10-100 km) such as fronts and eddies can aggregate prey and thereby drive the distribution of foraging vertebrates through bottom-up biophysical coupling. These productive features are known to attract predators, yet their role in facilitating energy transfer to top predators is opaque. We investigated the use of mesoscale features by migrating northern elephant seals and quantified the corresponding energetic gains from the seals’ foraging patterns at a daily resolution. Migrating elephant seals modified their diving behaviour and selected for mesoscale features when foraging. Daily energy gain increased significantly with increasing mesoscale activity, indicating that the physical environment can influence predator fitness at fine temporal scales. Results show that areas of high mesoscale activity not only attract top predators as foraging hotspots, but also lead to increased energy transfer across trophic levels. Our study provides evidence that the physical environment is an important factor in controlling energy flow to top predators by setting the stage for variation in resource availability. Such understanding is critical for assessing how changes in the environment and resource distribution will affect individual fitness and food web dynamics. |
author |
Abrahms, Briana Scales, Kylie Hazen, Elliott Bograd, Steven Schick, Robert Robinson, Patrick Costa, Daniel |
author_facet |
Abrahms, Briana Scales, Kylie Hazen, Elliott Bograd, Steven Schick, Robert Robinson, Patrick Costa, Daniel |
author_sort |
Abrahms, Briana |
title |
Data from: Mesoscale activity facilitates energy gain in a top predator |
title_short |
Data from: Mesoscale activity facilitates energy gain in a top predator |
title_full |
Data from: Mesoscale activity facilitates energy gain in a top predator |
title_fullStr |
Data from: Mesoscale activity facilitates energy gain in a top predator |
title_full_unstemmed |
Data from: Mesoscale activity facilitates energy gain in a top predator |
title_sort |
data from: mesoscale activity facilitates energy gain in a top predator |
publishDate |
2018 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-1s-ax3j https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:109777 |
genre |
Elephant Seals |
genre_facet |
Elephant Seals |
op_relation |
doi:10.5061/dryad.2v10hs6/1 http://nbn-resolving.org/urn:nbn:nl:ui:13-1s-ax3j doi:10.5061/dryad.2v10hs6 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:109777 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.2v10hs6/110.5061/dryad.2v10hs6 |
_version_ |
1770271635866124288 |