Satellite tracking of red-listed nominate lesser black-backed gulls ( Larus f. fuscus ) : Habitat specialisation in foraging movements raises novel conservation needs
In contrast to many other gull species, nominate lesser black-backed gulls (Larus fuscus fuscus, nLBBG) have shown generally decreasing population trends throughout their breeding area in northern and eastern Fennoscandia over the past decades and are now red-listed. Interspecific competition, preda...
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Online Access: | http://nbn-resolving.de/urn:nbn:de:bsz:352-2-j95f1e3nhy4v4 https://doi.org/10.1016/j.gecco.2017.03.009 |
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ftubkonstanz:oai:kops.uni-konstanz.de:123456789/40976 2024-02-11T10:03:45+01:00 Satellite tracking of red-listed nominate lesser black-backed gulls ( Larus f. fuscus ) : Habitat specialisation in foraging movements raises novel conservation needs Juvaste, Risto Arriero, Elena Gagliardo, Anna Holland, Richard A. Huttunen, Markku J. Mueller, Inge Thorup, Kasper Wikelski, Martin Hannila, Juhani Penttinen, Maija-Liisa Wistbacka, Ralf 2017 application/pdf http://nbn-resolving.de/urn:nbn:de:bsz:352-2-j95f1e3nhy4v4 https://doi.org/10.1016/j.gecco.2017.03.009 eng eng http://nbn-resolving.de/urn:nbn:de:bsz:352-2-j95f1e3nhy4v4 http://dx.doi.org/10.1016/j.gecco.2017.03.009 496569929 http://creativecommons.org/licenses/by-nc-nd/4.0/ Global Ecology and Conservation. 2017, 10, pp. 220-230. eISSN 2351-9894. Available under: doi:10.1016/j.gecco.2017.03.009 ddc:570 doc-type:article doc-type:Text 2017 ftubkonstanz https://doi.org/10.1016/j.gecco.2017.03.009 2024-01-21T23:52:08Z In contrast to many other gull species, nominate lesser black-backed gulls (Larus fuscus fuscus, nLBBG) have shown generally decreasing population trends throughout their breeding area in northern and eastern Fennoscandia over the past decades and are now red-listed. Interspecific competition, predation, increased disturbance, organochlorine poisoning and food shortages were suggested as main reasons for the overall decrease. Here we contribute to a better understanding of population declines by comparing foraging movements of satellite tracked adult gulls in three geographical areas of Finland (West, South, and East) that differ in their population trends. Our analysis examines potential differences and preferences in the feeding site behaviour of adult gulls. Our comparison of the three geographical areas showed that nLBBGs preferred feeding at fur farms in West Finland, waste dumps in South Finland, and lakes and fields in East Finland. We found individual gulls of this purportedly generalist species to be highly specialised in their foraging behaviour, particularly those that might be associated with their survival probabilities. We hypothesise that differences in foraging behaviour and food availability during the breeding season are partially responsible for differences in demographic trends between populations. Specifically, we identify potential local conservation problems such as shooting in birds visiting fur farms. Our data suggest that the effective conservation and management of endangered nLBBGs could be aided by simple actions in the breeding areas in addition to better protection throughout the annual movement cycle. published published Article in Journal/Newspaper Fennoscandia Larus fuscus fuscus KOPS - The Institutional Repository of the University of Konstanz Global Ecology and Conservation 10 220 230 |
institution |
Open Polar |
collection |
KOPS - The Institutional Repository of the University of Konstanz |
op_collection_id |
ftubkonstanz |
language |
English |
topic |
ddc:570 |
spellingShingle |
ddc:570 Juvaste, Risto Arriero, Elena Gagliardo, Anna Holland, Richard A. Huttunen, Markku J. Mueller, Inge Thorup, Kasper Wikelski, Martin Hannila, Juhani Penttinen, Maija-Liisa Wistbacka, Ralf Satellite tracking of red-listed nominate lesser black-backed gulls ( Larus f. fuscus ) : Habitat specialisation in foraging movements raises novel conservation needs |
topic_facet |
ddc:570 |
description |
In contrast to many other gull species, nominate lesser black-backed gulls (Larus fuscus fuscus, nLBBG) have shown generally decreasing population trends throughout their breeding area in northern and eastern Fennoscandia over the past decades and are now red-listed. Interspecific competition, predation, increased disturbance, organochlorine poisoning and food shortages were suggested as main reasons for the overall decrease. Here we contribute to a better understanding of population declines by comparing foraging movements of satellite tracked adult gulls in three geographical areas of Finland (West, South, and East) that differ in their population trends. Our analysis examines potential differences and preferences in the feeding site behaviour of adult gulls. Our comparison of the three geographical areas showed that nLBBGs preferred feeding at fur farms in West Finland, waste dumps in South Finland, and lakes and fields in East Finland. We found individual gulls of this purportedly generalist species to be highly specialised in their foraging behaviour, particularly those that might be associated with their survival probabilities. We hypothesise that differences in foraging behaviour and food availability during the breeding season are partially responsible for differences in demographic trends between populations. Specifically, we identify potential local conservation problems such as shooting in birds visiting fur farms. Our data suggest that the effective conservation and management of endangered nLBBGs could be aided by simple actions in the breeding areas in addition to better protection throughout the annual movement cycle. published published |
format |
Article in Journal/Newspaper |
author |
Juvaste, Risto Arriero, Elena Gagliardo, Anna Holland, Richard A. Huttunen, Markku J. Mueller, Inge Thorup, Kasper Wikelski, Martin Hannila, Juhani Penttinen, Maija-Liisa Wistbacka, Ralf |
author_facet |
Juvaste, Risto Arriero, Elena Gagliardo, Anna Holland, Richard A. Huttunen, Markku J. Mueller, Inge Thorup, Kasper Wikelski, Martin Hannila, Juhani Penttinen, Maija-Liisa Wistbacka, Ralf |
author_sort |
Juvaste, Risto |
title |
Satellite tracking of red-listed nominate lesser black-backed gulls ( Larus f. fuscus ) : Habitat specialisation in foraging movements raises novel conservation needs |
title_short |
Satellite tracking of red-listed nominate lesser black-backed gulls ( Larus f. fuscus ) : Habitat specialisation in foraging movements raises novel conservation needs |
title_full |
Satellite tracking of red-listed nominate lesser black-backed gulls ( Larus f. fuscus ) : Habitat specialisation in foraging movements raises novel conservation needs |
title_fullStr |
Satellite tracking of red-listed nominate lesser black-backed gulls ( Larus f. fuscus ) : Habitat specialisation in foraging movements raises novel conservation needs |
title_full_unstemmed |
Satellite tracking of red-listed nominate lesser black-backed gulls ( Larus f. fuscus ) : Habitat specialisation in foraging movements raises novel conservation needs |
title_sort |
satellite tracking of red-listed nominate lesser black-backed gulls ( larus f. fuscus ) : habitat specialisation in foraging movements raises novel conservation needs |
publishDate |
2017 |
url |
http://nbn-resolving.de/urn:nbn:de:bsz:352-2-j95f1e3nhy4v4 https://doi.org/10.1016/j.gecco.2017.03.009 |
genre |
Fennoscandia Larus fuscus fuscus |
genre_facet |
Fennoscandia Larus fuscus fuscus |
op_source |
Global Ecology and Conservation. 2017, 10, pp. 220-230. eISSN 2351-9894. Available under: doi:10.1016/j.gecco.2017.03.009 |
op_relation |
http://nbn-resolving.de/urn:nbn:de:bsz:352-2-j95f1e3nhy4v4 http://dx.doi.org/10.1016/j.gecco.2017.03.009 496569929 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1016/j.gecco.2017.03.009 |
container_title |
Global Ecology and Conservation |
container_volume |
10 |
container_start_page |
220 |
op_container_end_page |
230 |
_version_ |
1790600082888851456 |