Influence of environmental variability on harbour porpoise movement
The harbour porpoise Phocoena phocoena is a small marine predator with a high conservation status in Europe and the USA. To protect the species effectively, it is crucial to understand its movement patterns and how the distribution of intensively used foraging areas can be predicted from environment...
Published in: | Marine Ecology Progress Series |
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2020
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Online Access: | https://pure.au.dk/portal/en/publications/5f4f0ab9-9ea8-41df-a6e8-fae6c6f2a061 https://doi.org/10.3354/meps13412 https://pure.au.dk/ws/files/227473046/m648p207.pdf |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/5f4f0ab9-9ea8-41df-a6e8-fae6c6f2a061 2024-02-04T10:00:59+01:00 Influence of environmental variability on harbour porpoise movement Stalder, Dominique van Beest, Floris Sveegaard, Signe Dietz, Rune Teilmann, Jonas Nabe-Nielsen, Jacob 2020-08 application/pdf https://pure.au.dk/portal/en/publications/5f4f0ab9-9ea8-41df-a6e8-fae6c6f2a061 https://doi.org/10.3354/meps13412 https://pure.au.dk/ws/files/227473046/m648p207.pdf eng eng https://pure.au.dk/portal/en/publications/5f4f0ab9-9ea8-41df-a6e8-fae6c6f2a061 info:eu-repo/semantics/openAccess Stalder , D , van Beest , F , Sveegaard , S , Dietz , R , Teilmann , J & Nabe-Nielsen , J 2020 , ' Influence of environmental variability on harbour porpoise movement ' , Marine Ecology Progress Series , vol. 648 , pp. 207-219 . https://doi.org/10.3354/meps13412 Argos satellite tracking North sea Phocoena phocoena arearestricted search cetacean concervation harbor porpoise movement behavior switching state-space model article 2020 ftuniaarhuspubl https://doi.org/10.3354/meps13412 2024-01-11T00:01:14Z The harbour porpoise Phocoena phocoena is a small marine predator with a high conservation status in Europe and the USA. To protect the species effectively, it is crucial to understand its movement patterns and how the distribution of intensively used foraging areas can be predicted from environmental conditions. Here, we investigated the influence of both static and dynamic environmental conditions on large-scale harbour porpoise movements in the North Sea. We used long-term movement data from 57 individuals tracked during 1999-2017 in a state-space model to estimate the underlying behavioural states, i.e. whether animals used area-restricted or directed movements. Subsequently, we assessed whether the probability of using area-restricted movements was related to environmental conditions using a generalized linear mixed model. Harbour porpoises were more likely to use area-restricted movements in areas with low salinity levels, relatively high chlorophyll a concentrations and low current velocity, and in areas with steep bottom slopes, suggesting that such areas are important foraging grounds for porpoises. Our study identifies environmental parameters of relevance for predicting harbour porpoise foraging hot spots over space and time in a dynamic system. The study illustrates how movement patterns and data on environmental conditions can be combined, which is valuable to the conservation of marine mammals. Article in Journal/Newspaper Harbour porpoise Phocoena phocoena Aarhus University: Research Marine Ecology Progress Series 648 207 219 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Argos satellite tracking North sea Phocoena phocoena arearestricted search cetacean concervation harbor porpoise movement behavior switching state-space model |
spellingShingle |
Argos satellite tracking North sea Phocoena phocoena arearestricted search cetacean concervation harbor porpoise movement behavior switching state-space model Stalder, Dominique van Beest, Floris Sveegaard, Signe Dietz, Rune Teilmann, Jonas Nabe-Nielsen, Jacob Influence of environmental variability on harbour porpoise movement |
topic_facet |
Argos satellite tracking North sea Phocoena phocoena arearestricted search cetacean concervation harbor porpoise movement behavior switching state-space model |
description |
The harbour porpoise Phocoena phocoena is a small marine predator with a high conservation status in Europe and the USA. To protect the species effectively, it is crucial to understand its movement patterns and how the distribution of intensively used foraging areas can be predicted from environmental conditions. Here, we investigated the influence of both static and dynamic environmental conditions on large-scale harbour porpoise movements in the North Sea. We used long-term movement data from 57 individuals tracked during 1999-2017 in a state-space model to estimate the underlying behavioural states, i.e. whether animals used area-restricted or directed movements. Subsequently, we assessed whether the probability of using area-restricted movements was related to environmental conditions using a generalized linear mixed model. Harbour porpoises were more likely to use area-restricted movements in areas with low salinity levels, relatively high chlorophyll a concentrations and low current velocity, and in areas with steep bottom slopes, suggesting that such areas are important foraging grounds for porpoises. Our study identifies environmental parameters of relevance for predicting harbour porpoise foraging hot spots over space and time in a dynamic system. The study illustrates how movement patterns and data on environmental conditions can be combined, which is valuable to the conservation of marine mammals. |
format |
Article in Journal/Newspaper |
author |
Stalder, Dominique van Beest, Floris Sveegaard, Signe Dietz, Rune Teilmann, Jonas Nabe-Nielsen, Jacob |
author_facet |
Stalder, Dominique van Beest, Floris Sveegaard, Signe Dietz, Rune Teilmann, Jonas Nabe-Nielsen, Jacob |
author_sort |
Stalder, Dominique |
title |
Influence of environmental variability on harbour porpoise movement |
title_short |
Influence of environmental variability on harbour porpoise movement |
title_full |
Influence of environmental variability on harbour porpoise movement |
title_fullStr |
Influence of environmental variability on harbour porpoise movement |
title_full_unstemmed |
Influence of environmental variability on harbour porpoise movement |
title_sort |
influence of environmental variability on harbour porpoise movement |
publishDate |
2020 |
url |
https://pure.au.dk/portal/en/publications/5f4f0ab9-9ea8-41df-a6e8-fae6c6f2a061 https://doi.org/10.3354/meps13412 https://pure.au.dk/ws/files/227473046/m648p207.pdf |
genre |
Harbour porpoise Phocoena phocoena |
genre_facet |
Harbour porpoise Phocoena phocoena |
op_source |
Stalder , D , van Beest , F , Sveegaard , S , Dietz , R , Teilmann , J & Nabe-Nielsen , J 2020 , ' Influence of environmental variability on harbour porpoise movement ' , Marine Ecology Progress Series , vol. 648 , pp. 207-219 . https://doi.org/10.3354/meps13412 |
op_relation |
https://pure.au.dk/portal/en/publications/5f4f0ab9-9ea8-41df-a6e8-fae6c6f2a061 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3354/meps13412 |
container_title |
Marine Ecology Progress Series |
container_volume |
648 |
container_start_page |
207 |
op_container_end_page |
219 |
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1789966588147924992 |