GPS tracking reveals landfill closures induce higher foraging effort and habitat switching in gulls

Abstract Background Landfills are a major subsidy for some animals, with implications for their life history and demography. Gulls feed extensively on food from landfills and closures are expected to have ecological consequences, but how this influences movement ecology is virtually unknown. Methods...

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Autores principales:	Liam P. Langley, Stuart Bearhop, Niall H.K. Burton, Alex N. Banks, Tim Frayling, Chris B. Thaxter, Gary D. Clewley, Emily Scragg, Stephen C. Votier
Formato:	article
Lenguaje:	EN
Publicado:	BMC 2021
Materias:	PAFS Anthropogenic Change Lesser Black-backed Gull Larus fuscus Generalists Management Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/fb73ff8e70054966b90b78784187c60d
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spelling	oai:doaj.org-article:fb73ff8e70054966b90b78784187c60d2021-11-14T12:24:57ZGPS tracking reveals landfill closures induce higher foraging effort and habitat switching in gulls10.1186/s40462-021-00278-22051-3933https://doaj.org/article/fb73ff8e70054966b90b78784187c60d2021-11-01T00:00:00Zhttps://doi.org/10.1186/s40462-021-00278-2https://doaj.org/toc/2051-3933Abstract Background Landfills are a major subsidy for some animals, with implications for their life history and demography. Gulls feed extensively on food from landfills and closures are expected to have ecological consequences, but how this influences movement ecology is virtually unknown. Methods We used GPS-tracking to quantify foraging behaviour and habitat choice of lesser black-backed gulls (Larus fuscus) breeding at two colonies before and after closure of two nearby landfills. Results Following closure, gulls from both colonies travelled further and for longer to forage. Gulls also changed habitat selection, although this differed by colony - birds from one colony shifted to agricultural habitats, while at the other, increased their use of urban areas. These behavioural responses had no effect on adult body condition but hint at potential direct effects of higher foraging costs and indirect impacts by shifting to new habitats. Conclusions Our results demonstrate how landfill availability influences gull foraging movements and habitat selection. We also emphasize the value of biologging to detect rapid behavioural responses in contrast to more conventional demographic approaches, which is especially important for animals that spend the majority of their lives away from direct observation.Liam P. LangleyStuart BearhopNiall H.K. BurtonAlex N. BanksTim FraylingChris B. ThaxterGary D. ClewleyEmily ScraggStephen C. VotierBMCarticlePAFSAnthropogenic ChangeLesser Black-backed GullLarus fuscusGeneralistsManagementBiology (General)QH301-705.5ENMovement Ecology, Vol 9, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	PAFS Anthropogenic Change Lesser Black-backed Gull Larus fuscus Generalists Management Biology (General) QH301-705.5
spellingShingle	PAFS Anthropogenic Change Lesser Black-backed Gull Larus fuscus Generalists Management Biology (General) QH301-705.5 Liam P. Langley Stuart Bearhop Niall H.K. Burton Alex N. Banks Tim Frayling Chris B. Thaxter Gary D. Clewley Emily Scragg Stephen C. Votier GPS tracking reveals landfill closures induce higher foraging effort and habitat switching in gulls
description	Abstract Background Landfills are a major subsidy for some animals, with implications for their life history and demography. Gulls feed extensively on food from landfills and closures are expected to have ecological consequences, but how this influences movement ecology is virtually unknown. Methods We used GPS-tracking to quantify foraging behaviour and habitat choice of lesser black-backed gulls (Larus fuscus) breeding at two colonies before and after closure of two nearby landfills. Results Following closure, gulls from both colonies travelled further and for longer to forage. Gulls also changed habitat selection, although this differed by colony - birds from one colony shifted to agricultural habitats, while at the other, increased their use of urban areas. These behavioural responses had no effect on adult body condition but hint at potential direct effects of higher foraging costs and indirect impacts by shifting to new habitats. Conclusions Our results demonstrate how landfill availability influences gull foraging movements and habitat selection. We also emphasize the value of biologging to detect rapid behavioural responses in contrast to more conventional demographic approaches, which is especially important for animals that spend the majority of their lives away from direct observation.
format	article
author	Liam P. Langley Stuart Bearhop Niall H.K. Burton Alex N. Banks Tim Frayling Chris B. Thaxter Gary D. Clewley Emily Scragg Stephen C. Votier
author_facet	Liam P. Langley Stuart Bearhop Niall H.K. Burton Alex N. Banks Tim Frayling Chris B. Thaxter Gary D. Clewley Emily Scragg Stephen C. Votier
author_sort	Liam P. Langley
title	GPS tracking reveals landfill closures induce higher foraging effort and habitat switching in gulls
title_short	GPS tracking reveals landfill closures induce higher foraging effort and habitat switching in gulls
title_full	GPS tracking reveals landfill closures induce higher foraging effort and habitat switching in gulls
title_fullStr	GPS tracking reveals landfill closures induce higher foraging effort and habitat switching in gulls
title_full_unstemmed	GPS tracking reveals landfill closures induce higher foraging effort and habitat switching in gulls
title_sort	gps tracking reveals landfill closures induce higher foraging effort and habitat switching in gulls
publisher	BMC
publishDate	2021
url	https://doaj.org/article/fb73ff8e70054966b90b78784187c60d
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GPS tracking reveals landfill closures induce higher foraging effort and habitat switching in gulls

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