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| Folliot, Benjamin; Souchay, Guillaume; Champagnon, Jocelyn; Guillemain, Matthieu; Durham, Maurice; Hearn, Richard; Hofer, Josef; Laesser, Jacques; Sorin, Christophe; Caizergues, Alain. |
| In western Europe, common pochard populations have experienced a sharp decline over the last two decades, together with an increasing proportion of males. Both of these changes were suggested to result from decreasing survival of nesting females (i.e. survival of adult females) owing to increasing predation pressure. To test this hypothesis, we used capture–mark–recapture/recovery data of common pochard ringed during autumn–winter (October–February) in three countries of western Europe (Switzerland, United Kingdom and France). We found no evidence for decreasing survival of individuals ringed in the United Kingdom or in Switzerland over the long term (1977–2011). In France, adult males and juvenile females experienced significant decreasing survival over a... |
| Tipo: Text |
Palavras-chave: CMR; Multistate models; Recoveries; Sex ratio; Survival; Waterfowl. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00651/76323/77301.pdf |
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