Spatiotemporal mortality and demographic trends in a small cetacean: Strandings to inform conservation management
With global increases in anthropogenic pressures on wildlife populations comes a responsibility to manage them effectively. The assessment of marine ecosystem health is challenging and often relies on monitoring indicator species, such as cetaceans. Most cetaceans are however highly mobile and spend...
Published in: | Biological Conservation |
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Main Authors: | , , , , , , , , , , , , , , , |
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2020
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Online Access: | https://pure.sruc.ac.uk/en/publications/b3260428-4b0b-4b76-82a8-2c58b82d8030 https://doi.org/10.1016/j.biocon.2020.108733 https://pure.sruc.ac.uk/ws/files/27102406/main.pdf http://www.scopus.com/inward/record.url?scp=85089424218&partnerID=8YFLogxK |
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ftsrucpubl:oai:pure.atira.dk:publications/b3260428-4b0b-4b76-82a8-2c58b82d8030 2024-06-23T07:53:30+00:00 Spatiotemporal mortality and demographic trends in a small cetacean: Strandings to inform conservation management Ijsseldijk, Lonneke L. ten Doeschate, M Brownlow, Andrew Davison, NJ Deaville, Robert Galatius, Anders Haelters, Jan Jepson, Paul D. Keijl, Guido Kinze, CC Olsen, Morten Tange Siebert, Ursula Thostesen, Charlotte van den Broek, Jan Gröne, Andrea Heesterbeek, Hans 2020-09 application/pdf https://pure.sruc.ac.uk/en/publications/b3260428-4b0b-4b76-82a8-2c58b82d8030 https://doi.org/10.1016/j.biocon.2020.108733 https://pure.sruc.ac.uk/ws/files/27102406/main.pdf http://www.scopus.com/inward/record.url?scp=85089424218&partnerID=8YFLogxK eng eng https://pure.sruc.ac.uk/en/publications/b3260428-4b0b-4b76-82a8-2c58b82d8030 info:eu-repo/semantics/openAccess Ijsseldijk , L L , ten Doeschate , M , Brownlow , A , Davison , NJ , Deaville , R , Galatius , A , Haelters , J , Jepson , P D , Keijl , G , Kinze , CC , Olsen , M T , Siebert , U , Thostesen , C , van den Broek , J , Gröne , A & Heesterbeek , H 2020 , ' Spatiotemporal mortality and demographic trends in a small cetacean: Strandings to inform conservation management ' , Biological Conservation , vol. 249 , 108733 . https://doi.org/10.1016/j.biocon.2020.108733 Harbour porpoise Marine mammal Mortality North Sea Phocoena phocoena Surveillance programme Wildlife monitoring /dk/atira/pure/sustainabledevelopmentgoals/good_health_and_well_being name=SDG 3 - Good Health and Well-being /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2020 ftsrucpubl https://doi.org/10.1016/j.biocon.2020.108733 2024-05-29T23:41:29Z With global increases in anthropogenic pressures on wildlife populations comes a responsibility to manage them effectively. The assessment of marine ecosystem health is challenging and often relies on monitoring indicator species, such as cetaceans. Most cetaceans are however highly mobile and spend the majority of their time hidden from direct view, resulting in uncertainty on even the most basic population metrics. Here, we discuss the value of long-term and internationally combined stranding records as a valuable source of information on the demographic and mortality trends of the harbour porpoise (Phocoena phocoena) in the North Sea. We analysed stranding records (n = 16,181) from 1990 to 2017 and demonstrate a strong heterogeneous seasonal pattern of strandings throughout the North Sea, indicative of season-specific distribution or habitat use, and season-specific mortality. The annual incidence of strandings has increased since 1990, with a notable steeper rise particularly in the southern North Sea since 2005. A high density of neonatal strandings occurred specifically in the eastern North Sea, indicative of areas important for calving, and large numbers of juvenile males stranded in the southern parts, indicative of a population sink or reflecting higher male dispersion. These findings highlight the power of stranding records to detect potentially vulnerable population groups in time and space. This knowledge is vital for managers and can guide, for example, conservation measures such as the establishment of time-area-specific limits to potentially harmful human activities, aiming to reduce the number and intensity of human-wildlife conflicts. Article in Journal/Newspaper Harbour porpoise Phocoena phocoena SRUC (Scotland's Rural College): Research Portal Biological Conservation 249 108733 |
institution |
Open Polar |
collection |
SRUC (Scotland's Rural College): Research Portal |
op_collection_id |
ftsrucpubl |
language |
English |
topic |
Harbour porpoise Marine mammal Mortality North Sea Phocoena phocoena Surveillance programme Wildlife monitoring /dk/atira/pure/sustainabledevelopmentgoals/good_health_and_well_being name=SDG 3 - Good Health and Well-being /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
Harbour porpoise Marine mammal Mortality North Sea Phocoena phocoena Surveillance programme Wildlife monitoring /dk/atira/pure/sustainabledevelopmentgoals/good_health_and_well_being name=SDG 3 - Good Health and Well-being /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Ijsseldijk, Lonneke L. ten Doeschate, M Brownlow, Andrew Davison, NJ Deaville, Robert Galatius, Anders Haelters, Jan Jepson, Paul D. Keijl, Guido Kinze, CC Olsen, Morten Tange Siebert, Ursula Thostesen, Charlotte van den Broek, Jan Gröne, Andrea Heesterbeek, Hans Spatiotemporal mortality and demographic trends in a small cetacean: Strandings to inform conservation management |
topic_facet |
Harbour porpoise Marine mammal Mortality North Sea Phocoena phocoena Surveillance programme Wildlife monitoring /dk/atira/pure/sustainabledevelopmentgoals/good_health_and_well_being name=SDG 3 - Good Health and Well-being /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
With global increases in anthropogenic pressures on wildlife populations comes a responsibility to manage them effectively. The assessment of marine ecosystem health is challenging and often relies on monitoring indicator species, such as cetaceans. Most cetaceans are however highly mobile and spend the majority of their time hidden from direct view, resulting in uncertainty on even the most basic population metrics. Here, we discuss the value of long-term and internationally combined stranding records as a valuable source of information on the demographic and mortality trends of the harbour porpoise (Phocoena phocoena) in the North Sea. We analysed stranding records (n = 16,181) from 1990 to 2017 and demonstrate a strong heterogeneous seasonal pattern of strandings throughout the North Sea, indicative of season-specific distribution or habitat use, and season-specific mortality. The annual incidence of strandings has increased since 1990, with a notable steeper rise particularly in the southern North Sea since 2005. A high density of neonatal strandings occurred specifically in the eastern North Sea, indicative of areas important for calving, and large numbers of juvenile males stranded in the southern parts, indicative of a population sink or reflecting higher male dispersion. These findings highlight the power of stranding records to detect potentially vulnerable population groups in time and space. This knowledge is vital for managers and can guide, for example, conservation measures such as the establishment of time-area-specific limits to potentially harmful human activities, aiming to reduce the number and intensity of human-wildlife conflicts. |
format |
Article in Journal/Newspaper |
author |
Ijsseldijk, Lonneke L. ten Doeschate, M Brownlow, Andrew Davison, NJ Deaville, Robert Galatius, Anders Haelters, Jan Jepson, Paul D. Keijl, Guido Kinze, CC Olsen, Morten Tange Siebert, Ursula Thostesen, Charlotte van den Broek, Jan Gröne, Andrea Heesterbeek, Hans |
author_facet |
Ijsseldijk, Lonneke L. ten Doeschate, M Brownlow, Andrew Davison, NJ Deaville, Robert Galatius, Anders Haelters, Jan Jepson, Paul D. Keijl, Guido Kinze, CC Olsen, Morten Tange Siebert, Ursula Thostesen, Charlotte van den Broek, Jan Gröne, Andrea Heesterbeek, Hans |
author_sort |
Ijsseldijk, Lonneke L. |
title |
Spatiotemporal mortality and demographic trends in a small cetacean: Strandings to inform conservation management |
title_short |
Spatiotemporal mortality and demographic trends in a small cetacean: Strandings to inform conservation management |
title_full |
Spatiotemporal mortality and demographic trends in a small cetacean: Strandings to inform conservation management |
title_fullStr |
Spatiotemporal mortality and demographic trends in a small cetacean: Strandings to inform conservation management |
title_full_unstemmed |
Spatiotemporal mortality and demographic trends in a small cetacean: Strandings to inform conservation management |
title_sort |
spatiotemporal mortality and demographic trends in a small cetacean: strandings to inform conservation management |
publishDate |
2020 |
url |
https://pure.sruc.ac.uk/en/publications/b3260428-4b0b-4b76-82a8-2c58b82d8030 https://doi.org/10.1016/j.biocon.2020.108733 https://pure.sruc.ac.uk/ws/files/27102406/main.pdf http://www.scopus.com/inward/record.url?scp=85089424218&partnerID=8YFLogxK |
genre |
Harbour porpoise Phocoena phocoena |
genre_facet |
Harbour porpoise Phocoena phocoena |
op_source |
Ijsseldijk , L L , ten Doeschate , M , Brownlow , A , Davison , NJ , Deaville , R , Galatius , A , Haelters , J , Jepson , P D , Keijl , G , Kinze , CC , Olsen , M T , Siebert , U , Thostesen , C , van den Broek , J , Gröne , A & Heesterbeek , H 2020 , ' Spatiotemporal mortality and demographic trends in a small cetacean: Strandings to inform conservation management ' , Biological Conservation , vol. 249 , 108733 . https://doi.org/10.1016/j.biocon.2020.108733 |
op_relation |
https://pure.sruc.ac.uk/en/publications/b3260428-4b0b-4b76-82a8-2c58b82d8030 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.biocon.2020.108733 |
container_title |
Biological Conservation |
container_volume |
249 |
container_start_page |
108733 |
_version_ |
1802645205639233536 |