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Gerondeau, M; Barbraud, C; Ridoux, Vincent; Vincent, Cecile. |
It has been suggested that the large grey seal colonies around the British Isles form local populations within a metapopulation, and that seal movements outside the breeding season lead to considerable overlap between individual home ranges. Individual behaviour and population dynamics of small peripheral colonies may also play a role in the metapopulation. We studied the French grey seal colony of the Molene archipelago, at the southern-most limit of the species' range. We analysed photo-identification data with capture-mark-recapture techniques in order to estimate the total seasonal abundance of grey seals in the archipelago and to quantify the seasonal rates of occurrence or movements of male and female seals. We found that between 58% (95% confidence... |
Tipo: Text |
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Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-3572.pdf |
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