Translated from Dutch NOS TV:
The border fences in Europe for stopping refugees are disastrous for wildlife. A group of international scientists are worried about the impact on the migratory routes of, eg, wolves, bears, lynx, bison and red deer.
“The fences cut populations of already vulnerable species in pieces,” says Arie Trouwborst of Tilburg University. “And at least as bad is that animals that get caught in the fences die in a nasty way. Especially barbed wire which was rolled out recently in haste causes animal suffering.” …
The group estimates that there are border barriers with a length of 25,000 to 30,000 kilometers, where animals literally collide with. Where that leads to becomes apparent on the Slovenia-Croatia border, where lynx are fitted with transmitters. “The population there was already very fragile and border barriers have decimated it further,” says Trouwborst.
See also here.
The scientists’ report is here.