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Vandel, J.-M.; Stahl, P.; Herrenschmidt, V.; Marboutin, E.
Reintroduction of the lynx into the Vosges mountain massif: From animal survival and movements to population development
2006  Biological Conservation (131): 370-385

After their release, the lynx roamed (over 5.4- to 36.9-km) around the site of release so that, within the first three months, the mean prospected area averaged 236 kmę (84-566 kmę). Of the 21 reintroduced lynx, 4 females and 6 males were able to survive and so contributed to the population's establishment. The lynx distribution area covered 1872 kmę in 1988-1990 and increased to 3159 kmę in 2000-2002. The area's expansion most often started in the reintroduction sites where, as of 1987, the first cases of reproduction were recorded. Such population development could only be simulated with rather high adult survival rates. The small surface area occupied by a permanent population core (1962 kmę) and the long time needed to settle down, could then be due to the small number of founders, to the fact that for 10 years the releases had been spaced out and because, from a demographic point of view, the resultant population was isolated from other possible source-populations of lynx. Twenty years later, and relative to other lynx population cores in France (e.g. the one in the Jura), the status of the lynx in the Vosges mountain massif is still uncertain: there, the lynx is still expanding its distribution area and may establish itself throughout the Vosges massif provided that the current increase in its population numbers will not fall back again (e.g. no increase in human-related mortality).

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