Linking movement and dive data to prey distribution models: new insights in foraging behaviour and potential pitfalls of movement analyses

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dc.contributor.authorFlorko, Katie R. N.
dc.contributor.authorShuert, Courtney R.
dc.contributor.authorCheung, William W. L.
dc.contributor.authorFerguson, Steven H
dc.contributor.authorJonsen, Ian D.
dc.contributor.authorRosen, David A.S.
dc.contributor.authorSumaila, U.R.
dc.contributor.authorTai, Travis C.
dc.contributor.authorYurkowski, David
dc.contributor.authorAuger-Methe, Marie
dc.date.accessioned2023-05-01T15:31:56Z
dc.date.available2023-05-01T15:31:56Z
dc.date.issued2023-03-23
dc.date.updated2023-04-04T17:42:49Z
dc.description.abstractAbstract 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.en_US
dc.identifier.citationMovement Ecology. 2023 Mar 23;11(1):17
dc.identifier.citationMovement Ecology. 2023 Mar 23;11(1):17
dc.identifier.urihttps://doi.org/10.1186/s40462-023-00377-2
dc.identifier.urihttp://hdl.handle.net/1993/37315
dc.language.isoengen_US
dc.language.rfc3066en
dc.publisherBioMed Central (BMC)en_US
dc.rightsopen accessen_US
dc.rights.holderThe Author(s)
dc.titleLinking movement and dive data to prey distribution models: new insights in foraging behaviour and potential pitfalls of movement analysesen_US
dc.typejournal articleen_US
local.author.affiliationFaculty of Science::Department of Biological Sciencesen_US
oaire.citation.issue1en_US
oaire.citation.startPage17en_US
oaire.citation.titleMovement Ecologyen_US
oaire.citation.volume11en_US
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