Seals in motion : how movements drive population development of harbour seals and grey seals in the North Sea
The harbour seal Phoca vitulina and the grey seal Halichoerus grypus have been inhabitants of the Wadden Sea since millennia. Prehistoric findings indicate the presence of both species around 5000 BC. This changed dramatically in the mid Middle-Ages as around 1500 AC, the grey seal disappeared from...
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Wageningen University
2017
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Online Access: | https://research.wur.nl/en/publications/seals-in-motion-how-movements-drive-population-development-of-har https://doi.org/10.18174/418009 |
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ftunivwagenin:oai:library.wur.nl:wurpubs/525821 2024-02-11T10:04:33+01:00 Seals in motion : how movements drive population development of harbour seals and grey seals in the North Sea Brasseur, Sophie Marie Jacqueline Michelle Reijnders, P.J.H. Aarts, G.M. 2017 application/pdf https://research.wur.nl/en/publications/seals-in-motion-how-movements-drive-population-development-of-har https://doi.org/10.18174/418009 en eng Wageningen University https://edepot.wur.nl/418009 https://research.wur.nl/en/publications/seals-in-motion-how-movements-drive-population-development-of-har doi:10.18174/418009 Wageningen University & Research animal ecology halichoerus grypus netherlands phoca vitulina pinnipedia population biology seals wadden sea dierecologie nederland populatiebiologie waddenzee zeehonden Doctoral thesis 2017 ftunivwagenin https://doi.org/10.18174/418009 2024-01-24T23:17:18Z The harbour seal Phoca vitulina and the grey seal Halichoerus grypus have been inhabitants of the Wadden Sea since millennia. Prehistoric findings indicate the presence of both species around 5000 BC. This changed dramatically in the mid Middle-Ages as around 1500 AC, the grey seal disappeared from the Wadden Sea as a consequence of persecution. With growing hunting pressure, especially in the 20th century and concurrent habitat destruction and pollution, the harbour seals reached all time low numbers in the 1970’s. Banning the hunt in countries around the southern North Sea, limiting pollution and protection from disturbance allowed the harbour seals to slowly recover and the grey seals to return to the Wadden Sea. In this thesis the population trends and inherent dynamics of the recovery for both species is described. Also the movements of individual animals are studied to explain possible mechanisms. Doctoral or Postdoctoral Thesis harbour seal Phoca vitulina Wageningen UR (University & Research Centre): Digital Library |
institution |
Open Polar |
collection |
Wageningen UR (University & Research Centre): Digital Library |
op_collection_id |
ftunivwagenin |
language |
English |
topic |
animal ecology halichoerus grypus netherlands phoca vitulina pinnipedia population biology seals wadden sea dierecologie nederland populatiebiologie waddenzee zeehonden |
spellingShingle |
animal ecology halichoerus grypus netherlands phoca vitulina pinnipedia population biology seals wadden sea dierecologie nederland populatiebiologie waddenzee zeehonden Brasseur, Sophie Marie Jacqueline Michelle Seals in motion : how movements drive population development of harbour seals and grey seals in the North Sea |
topic_facet |
animal ecology halichoerus grypus netherlands phoca vitulina pinnipedia population biology seals wadden sea dierecologie nederland populatiebiologie waddenzee zeehonden |
description |
The harbour seal Phoca vitulina and the grey seal Halichoerus grypus have been inhabitants of the Wadden Sea since millennia. Prehistoric findings indicate the presence of both species around 5000 BC. This changed dramatically in the mid Middle-Ages as around 1500 AC, the grey seal disappeared from the Wadden Sea as a consequence of persecution. With growing hunting pressure, especially in the 20th century and concurrent habitat destruction and pollution, the harbour seals reached all time low numbers in the 1970’s. Banning the hunt in countries around the southern North Sea, limiting pollution and protection from disturbance allowed the harbour seals to slowly recover and the grey seals to return to the Wadden Sea. In this thesis the population trends and inherent dynamics of the recovery for both species is described. Also the movements of individual animals are studied to explain possible mechanisms. |
author2 |
Reijnders, P.J.H. Aarts, G.M. |
format |
Doctoral or Postdoctoral Thesis |
author |
Brasseur, Sophie Marie Jacqueline Michelle |
author_facet |
Brasseur, Sophie Marie Jacqueline Michelle |
author_sort |
Brasseur, Sophie Marie Jacqueline Michelle |
title |
Seals in motion : how movements drive population development of harbour seals and grey seals in the North Sea |
title_short |
Seals in motion : how movements drive population development of harbour seals and grey seals in the North Sea |
title_full |
Seals in motion : how movements drive population development of harbour seals and grey seals in the North Sea |
title_fullStr |
Seals in motion : how movements drive population development of harbour seals and grey seals in the North Sea |
title_full_unstemmed |
Seals in motion : how movements drive population development of harbour seals and grey seals in the North Sea |
title_sort |
seals in motion : how movements drive population development of harbour seals and grey seals in the north sea |
publisher |
Wageningen University |
publishDate |
2017 |
url |
https://research.wur.nl/en/publications/seals-in-motion-how-movements-drive-population-development-of-har https://doi.org/10.18174/418009 |
genre |
harbour seal Phoca vitulina |
genre_facet |
harbour seal Phoca vitulina |
op_relation |
https://edepot.wur.nl/418009 https://research.wur.nl/en/publications/seals-in-motion-how-movements-drive-population-development-of-har doi:10.18174/418009 |
op_rights |
Wageningen University & Research |
op_doi |
https://doi.org/10.18174/418009 |
_version_ |
1790601214289772544 |