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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ftdoajarticles:oai:doaj.org/article:81fcdf36ffc643f9b6f495576ae8dd58 2023-05-15T16:12:07+02:00 Satellite tracking of red-listed nominate lesser black-backed gulls (Larus f. fuscus): Habitat specialisation in foraging movements raises novel conservation needs Risto Juvaste Elena Arriero Anna Gagliardo Richard Holland Markku J. Huttunen Inge Mueller Kasper Thorup Martin Wikelski Juhani Hannila Maija-Liisa Penttinen Ralf Wistbacka 2017-04-01T00:00:00Z https://doi.org/10.1016/j.gecco.2017.03.009 https://doaj.org/article/81fcdf36ffc643f9b6f495576ae8dd58 EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S2351989416301603 https://doaj.org/toc/2351-9894 2351-9894 doi:10.1016/j.gecco.2017.03.009 https://doaj.org/article/81fcdf36ffc643f9b6f495576ae8dd58 Global Ecology and Conservation, Vol 10, Iss C, Pp 220-230 (2017) Lesser black-backed gull (Larus fuscus) Satellite tracking Foraging movement Interspecific competition Predation Shooting birds Ecology QH540-549.5 article 2017 ftdoajarticles https://doi.org/10.1016/j.gecco.2017.03.009 2022-12-31T02:44:24Z 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. Article in Journal/Newspaper Fennoscandia Larus fuscus fuscus Lesser black-backed gull Directory of Open Access Journals: DOAJ Articles Global Ecology and Conservation 10 220 230 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Lesser black-backed gull (Larus fuscus) Satellite tracking Foraging movement Interspecific competition Predation Shooting birds Ecology QH540-549.5 |
spellingShingle |
Lesser black-backed gull (Larus fuscus) Satellite tracking Foraging movement Interspecific competition Predation Shooting birds Ecology QH540-549.5 Risto Juvaste Elena Arriero Anna Gagliardo Richard Holland Markku J. Huttunen Inge Mueller Kasper Thorup Martin Wikelski Juhani Hannila Maija-Liisa Penttinen Ralf Wistbacka Satellite tracking of red-listed nominate lesser black-backed gulls (Larus f. fuscus): Habitat specialisation in foraging movements raises novel conservation needs |
topic_facet |
Lesser black-backed gull (Larus fuscus) Satellite tracking Foraging movement Interspecific competition Predation Shooting birds Ecology QH540-549.5 |
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. |
format |
Article in Journal/Newspaper |
author |
Risto Juvaste Elena Arriero Anna Gagliardo Richard Holland Markku J. Huttunen Inge Mueller Kasper Thorup Martin Wikelski Juhani Hannila Maija-Liisa Penttinen Ralf Wistbacka |
author_facet |
Risto Juvaste Elena Arriero Anna Gagliardo Richard Holland Markku J. Huttunen Inge Mueller Kasper Thorup Martin Wikelski Juhani Hannila Maija-Liisa Penttinen Ralf Wistbacka |
author_sort |
Risto Juvaste |
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 |
publisher |
Elsevier |
publishDate |
2017 |
url |
https://doi.org/10.1016/j.gecco.2017.03.009 https://doaj.org/article/81fcdf36ffc643f9b6f495576ae8dd58 |
genre |
Fennoscandia Larus fuscus fuscus Lesser black-backed gull |
genre_facet |
Fennoscandia Larus fuscus fuscus Lesser black-backed gull |
op_source |
Global Ecology and Conservation, Vol 10, Iss C, Pp 220-230 (2017) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S2351989416301603 https://doaj.org/toc/2351-9894 2351-9894 doi:10.1016/j.gecco.2017.03.009 https://doaj.org/article/81fcdf36ffc643f9b6f495576ae8dd58 |
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 |
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1765997355372380160 |