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: | https://erepo.uef.fi/handle/123456789/4406 |
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ftuniveasternfin:oai:erepo.uef.fi:123456789/4406 2024-06-16T07:39:53+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 R Arriero E Gagliardo A Holland R Huttunen MJ Mueller I Thorup K Wikelski M Hannila J Penttinen M-L Wistbacka R School of Forest Sciences, activities 2017-10-18T12:28:28Z 220-230 https://erepo.uef.fi/handle/123456789/4406 EN eng Elsevier BV Global Ecology and Conservation http://dx.doi.org/10.1016/j.gecco.2017.03.009 10.1016/j.gecco.2017.03.009 2351-9894 10 https://erepo.uef.fi/handle/123456789/4406 CC BY-NC-ND 4.0 openAccess © Authors https://creativecommons.org/licenses/by-nc-nd/4.0/ Lesser black-backed gull (Larus fuscus) Satellite tracking Foraging movement Interspecific competition Predation Shooting birds info:eu-repo/semantics/article A1 info:eu-repo/semantics/publishedVersion article artikkeli 2017 ftuniveasternfin https://doi.org/10.1016/j.gecco.2017.03.009 2024-05-23T03:07:27Z 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 version peerReviewed Article in Journal/Newspaper Fennoscandia Larus fuscus fuscus Lesser black-backed gull UEF eRepository (University of Eastern Finland) Global Ecology and Conservation 10 220 230 |
institution |
Open Polar |
collection |
UEF eRepository (University of Eastern Finland) |
op_collection_id |
ftuniveasternfin |
language |
English |
topic |
Lesser black-backed gull (Larus fuscus) Satellite tracking Foraging movement Interspecific competition Predation Shooting birds |
spellingShingle |
Lesser black-backed gull (Larus fuscus) Satellite tracking Foraging movement Interspecific competition Predation Shooting birds Juvaste R Arriero E Gagliardo A Holland R Huttunen MJ Mueller I Thorup K Wikelski M Hannila J Penttinen M-L Wistbacka R 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 |
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 version peerReviewed |
author2 |
School of Forest Sciences, activities |
format |
Article in Journal/Newspaper |
author |
Juvaste R Arriero E Gagliardo A Holland R Huttunen MJ Mueller I Thorup K Wikelski M Hannila J Penttinen M-L Wistbacka R |
author_facet |
Juvaste R Arriero E Gagliardo A Holland R Huttunen MJ Mueller I Thorup K Wikelski M Hannila J Penttinen M-L Wistbacka R |
author_sort |
Juvaste R |
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 BV |
publishDate |
2017 |
url |
https://erepo.uef.fi/handle/123456789/4406 |
genre |
Fennoscandia Larus fuscus fuscus Lesser black-backed gull |
genre_facet |
Fennoscandia Larus fuscus fuscus Lesser black-backed gull |
op_relation |
Global Ecology and Conservation http://dx.doi.org/10.1016/j.gecco.2017.03.009 10.1016/j.gecco.2017.03.009 2351-9894 10 https://erepo.uef.fi/handle/123456789/4406 |
op_rights |
CC BY-NC-ND 4.0 openAccess © Authors https://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_ |
1802006690767306752 |