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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ftunivpisairis:oai:arpi.unipi.it:11568/853568 2024-04-21T08:01:51+00:00 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 Huttunen, Markku J. Mueller, Inge Thorup, Kasper Wikelski, Martin Hannila, Juhani Penttinen, Maija Liisa Wistbacka, Ralf Juvaste, Risto Arriero, Elena Gagliardo, Anna Holland, Richard Huttunen, Markku J. Mueller, Inge Thorup, Kasper Wikelski, Martin Hannila, Juhani Penttinen, Maija Liisa Wistbacka, Ralf 2017 STAMPA https://hdl.handle.net/11568/853568 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000413278400021 volume:10 firstpage:220 lastpage:230 numberofpages:11 journal:GLOBAL ECOLOGY AND CONSERVATION https://hdl.handle.net/11568/853568 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85018286860 info:eu-repo/semantics/closedAccess Foraging movement Interspecific competition Predation Shooting birds info:eu-repo/semantics/article 2017 ftunivpisairis 2024-03-28T01:31:22Z 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 ARPI - Archivio della Ricerca dell'Università di Pisa |
institution |
Open Polar |
collection |
ARPI - Archivio della Ricerca dell'Università di Pisa |
op_collection_id |
ftunivpisairis |
language |
English |
topic |
Foraging movement Interspecific competition Predation Shooting birds |
spellingShingle |
Foraging movement Interspecific competition Predation Shooting birds Juvaste, Risto Arriero, Elena GAGLIARDO, ANNA Holland, Richard 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 |
Foraging movement Interspecific competition Predation Shooting birds |
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. |
author2 |
Juvaste, Risto Arriero, Elena Gagliardo, Anna Holland, Richard Huttunen, Markku J. Mueller, Inge Thorup, Kasper Wikelski, Martin Hannila, Juhani Penttinen, Maija Liisa Wistbacka, Ralf |
format |
Article in Journal/Newspaper |
author |
Juvaste, Risto Arriero, Elena GAGLIARDO, ANNA Holland, Richard 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 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 |
https://hdl.handle.net/11568/853568 |
genre |
Fennoscandia Larus fuscus fuscus |
genre_facet |
Fennoscandia Larus fuscus fuscus |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000413278400021 volume:10 firstpage:220 lastpage:230 numberofpages:11 journal:GLOBAL ECOLOGY AND CONSERVATION https://hdl.handle.net/11568/853568 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85018286860 |
op_rights |
info:eu-repo/semantics/closedAccess |
_version_ |
1796942018442690560 |