Due to their high adaptability and opportunistic predation behaviour feral cats have a great impact on worldwide bird biodiversity in particular on islands. However not much is known about their actual behaviour and time budget, as direct behavioural observations often are difficult regarding free-ranging …

Fragmentation of the environment affects the dispersal of Eurasian lynx (Lynx lynx). This also occurs in the Harz region, in central Germany, where in 2000 the Luchsprojekt Harz started reintroducing the Eurasian lynx. This constantly growing population causes lynx dispersal including high traffic volume …

In many countries the Eurasian otter (Lutra lutra) is extinct or numbers are declining; resulting in a classification as “near threatened” on the IUCN’s Red List. In one-third of the European countries, however, conservation efforts, enabled the return of the species or the improvement of weakened populations. …

Het aantal Europese Atlantische steuren (Acipenser sturio) is aan het einde van de 19e eeuw dramatisch afgenomen. Waar deze soort zich voorheen over heel Europa had verspreid komen er nu slechts twee populaties voor in de Gironde rivier (Frankrijk) en de Rioni (Georgië). Om deze bijna uitgestorven soort …