130925-studie-wildlife-comeback-in-europe

educing the population in the country by over
95% [30] . As a result, Ruddy duck observations have
decreased substantially in Spain [30] .
A reintroduction project conducted during
the 1980s in Hungary was not successful in establishing
a breeding population due to poor choice of
release site (not past breeding site for the species,
exposed to human disturbance, potentially poor
quality habitat) and poor preparation, which did
not include identification and rectification of the
factors that caused extinction in the first place [31] .
A reintroduction on Corsica in 2001 also failed to
produce a self-sustaining population [32] . Reintroduction
projects are being planned in Italy and
in Spain [10] , but proposals are postponed until
complete eradication of Ruddy ducks has been
achieved [10, 33] .
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