Study

Development and viability of a translocated European beaver Castor fiber population in Biesbosch National Park, the Netherlands

  • Published source details Nolet B.A. & Baveco J.M. (1996) Development and viability of a translocated beaver Castor fiber population in The Netherlands. Biological Conservation, 75, 125-137

Actions

This study is summarised as evidence for the following.

Action Category

Translocate to re-establish or boost populations in native range

Action Link
Terrestrial Mammal Conservation
  1. Translocate to re-establish or boost populations in native range

    A study in 1988–1993 of a freshwater estuary at a national park in the Netherlands (Nolet & Baveco 1996) found that translocated Eurasian beavers Castor fiber increased in number, although were slow to breed. From 42 animals released over four years, the population grew to 47 two years after releases (including 27 animals ≥1 year old). Only in this final year did the number of births exceed the number of animals lost (through dispersal, death or other disappearance). Population Viability Analysis found that the population was unlikely to be viable (80% of simulated populations going extinct within 100 years) unless low breeding productivity was a temporary response to translocation. A total of 42 beavers, translocated from Germany, were released in October or November of 1988–1991. They were monitored by radio-tracking (from boat and plane) and direct observations of marked animals.

Output references

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