Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 525821
Title Seals in motion : how movements drive population development of harbour seals and grey seals in the North Sea
Author(s) Brasseur, Sophie Marie Jacqueline Michelle
Source University. Promotor(en): Peter Reijnders, co-promotor(en): Geert Aarts. - Wageningen : Wageningen University - ISBN 9789463436120 - 176
Department(s) IMARES Ecosystemen
IMARES Onderzoeksformatie
WIMEK
Publication type Dissertation, internally prepared
Publication year 2017
Keyword(s) seals - phoca vitulina - halichoerus grypus - pinnipedia - population biology - animal ecology - wadden sea - netherlands - zeehonden - populatiebiologie - dierecologie - waddenzee - nederland
Categories Animal Ecology
Abstract 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.
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