Linking movement and dive data to prey distribution models: new insights in foraging behaviour and potential pitfalls of movement analyses
Abstract Background Animal movement data are regularly used to infer foraging behaviour and relationships to environmental characteristics, often to help identify critical habitat. To characterize foraging, movement models make a set of assumptions rooted in theory, for example, time spent foraging...
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Language: | English |
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Online Access: | http://hdl.handle.net/1993/37315 https://doi.org/10.1186/s40462-023-00377-2 |
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ftunivmanitoba:oai:mspace.lib.umanitoba.ca:1993/37315 2023-08-27T04:09:53+02:00 Linking movement and dive data to prey distribution models: new insights in foraging behaviour and potential pitfalls of movement analyses Florko, Katie R. N. Shuert, Courtney R. Cheung, William W. L. Ferguson, Steven H Jonsen, Ian D. Rosen, David A.S. Sumaila, U.R. Tai, Travis C. Yurkowski, David Auger-Methe, Marie 2023-04-04T17:42:49Z application/pdf http://hdl.handle.net/1993/37315 https://doi.org/10.1186/s40462-023-00377-2 eng en eng BioMed Central (BMC) Movement Ecology. 2023 Mar 23;11(1):17 https://doi.org/10.1186/s40462-023-00377-2 http://hdl.handle.net/1993/37315 open access The Author(s) journal article 2023 ftunivmanitoba https://doi.org/10.1186/s40462-023-00377-2 2023-08-06T17:37:06Z Abstract Background Animal movement data are regularly used to infer foraging behaviour and relationships to environmental characteristics, often to help identify critical habitat. To characterize foraging, movement models make a set of assumptions rooted in theory, for example, time spent foraging in an area increases with higher prey density. Methods We assessed the validity of these assumptions by associating horizontal movement and diving of satellite-telemetered ringed seals (Pusa hispida)—an opportunistic predator—in Hudson Bay, Canada, to modelled prey data and environmental proxies. Results Modelled prey biomass data performed better than their environmental proxies (e.g., sea surface temperature) for explaining seal movement; however movement was not related to foraging effort. Counter to theory, seals appeared to forage more in areas with relatively lower prey diversity and biomass, potentially due to reduced foraging efficiency in those areas. Conclusions Our study highlights the need to validate movement analyses with prey data to effectively estimate the relationship between prey availability and foraging behaviour. Article in Journal/Newspaper Hudson Bay Pusa hispida MSpace at the University of Manitoba Hudson Bay Canada Hudson Movement Ecology 11 1 |
institution |
Open Polar |
collection |
MSpace at the University of Manitoba |
op_collection_id |
ftunivmanitoba |
language |
English |
description |
Abstract Background Animal movement data are regularly used to infer foraging behaviour and relationships to environmental characteristics, often to help identify critical habitat. To characterize foraging, movement models make a set of assumptions rooted in theory, for example, time spent foraging in an area increases with higher prey density. Methods We assessed the validity of these assumptions by associating horizontal movement and diving of satellite-telemetered ringed seals (Pusa hispida)—an opportunistic predator—in Hudson Bay, Canada, to modelled prey data and environmental proxies. Results Modelled prey biomass data performed better than their environmental proxies (e.g., sea surface temperature) for explaining seal movement; however movement was not related to foraging effort. Counter to theory, seals appeared to forage more in areas with relatively lower prey diversity and biomass, potentially due to reduced foraging efficiency in those areas. Conclusions Our study highlights the need to validate movement analyses with prey data to effectively estimate the relationship between prey availability and foraging behaviour. |
format |
Article in Journal/Newspaper |
author |
Florko, Katie R. N. Shuert, Courtney R. Cheung, William W. L. Ferguson, Steven H Jonsen, Ian D. Rosen, David A.S. Sumaila, U.R. Tai, Travis C. Yurkowski, David Auger-Methe, Marie |
spellingShingle |
Florko, Katie R. N. Shuert, Courtney R. Cheung, William W. L. Ferguson, Steven H Jonsen, Ian D. Rosen, David A.S. Sumaila, U.R. Tai, Travis C. Yurkowski, David Auger-Methe, Marie Linking movement and dive data to prey distribution models: new insights in foraging behaviour and potential pitfalls of movement analyses |
author_facet |
Florko, Katie R. N. Shuert, Courtney R. Cheung, William W. L. Ferguson, Steven H Jonsen, Ian D. Rosen, David A.S. Sumaila, U.R. Tai, Travis C. Yurkowski, David Auger-Methe, Marie |
author_sort |
Florko, Katie R. N. |
title |
Linking movement and dive data to prey distribution models: new insights in foraging behaviour and potential pitfalls of movement analyses |
title_short |
Linking movement and dive data to prey distribution models: new insights in foraging behaviour and potential pitfalls of movement analyses |
title_full |
Linking movement and dive data to prey distribution models: new insights in foraging behaviour and potential pitfalls of movement analyses |
title_fullStr |
Linking movement and dive data to prey distribution models: new insights in foraging behaviour and potential pitfalls of movement analyses |
title_full_unstemmed |
Linking movement and dive data to prey distribution models: new insights in foraging behaviour and potential pitfalls of movement analyses |
title_sort |
linking movement and dive data to prey distribution models: new insights in foraging behaviour and potential pitfalls of movement analyses |
publisher |
BioMed Central (BMC) |
publishDate |
2023 |
url |
http://hdl.handle.net/1993/37315 https://doi.org/10.1186/s40462-023-00377-2 |
geographic |
Hudson Bay Canada Hudson |
geographic_facet |
Hudson Bay Canada Hudson |
genre |
Hudson Bay Pusa hispida |
genre_facet |
Hudson Bay Pusa hispida |
op_relation |
Movement Ecology. 2023 Mar 23;11(1):17 https://doi.org/10.1186/s40462-023-00377-2 http://hdl.handle.net/1993/37315 |
op_rights |
open access The Author(s) |
op_doi |
https://doi.org/10.1186/s40462-023-00377-2 |
container_title |
Movement Ecology |
container_volume |
11 |
container_issue |
1 |
_version_ |
1775351558875119616 |