Human beings have natural enemies
The claim is made again and again that the beaver can reproduce so strongly in our country because there are no wolf, bear or lynx regulators. It is undisputed that the wolf in particular chases the beaver every now and then, but the wolves where they occur together with the beaver (e.g. Latvia, Poland, Russia) have proven to have no influence on the development of the total population of the beaver.
For example, in Latvia, a country that is slightly smaller than Bavaria, the wolf population from 230 animals in 1985 to 997 wolves in 1997. In the same period, however, the beaver population grew from around 5,000 to 30,000 animals. With these figures, there can be no question of the wolf regulating the beaver population. An adult beaver is very defensive and can inflict deep wounds on its enemies. Therefore, every wolf will carefully consider whether he is exposing himself to this risk of injury. An injured wolf is very bad at hunting. For him, an elk calf is a much simpler and more meat-rich prey.
Also in Russia the beaver population increased significantly in the past 45 years from approx. 25,000 in 1960 to currently approx. 300,000 animals. And this despite 30,000 wolves and around 80,000 brown bears. Here, too, one cannot speak of a regulation of the beaver population by these predators.
The same is evident from the re-naturalization of the beaver in North America. The beavers, which had largely been exterminated, were reintroduced here, as in Bavaria. There, however, in the middle between bear and wolf, lynx or puma. Nevertheless, the population grew from a few thousand beavers to an estimated 10 to 20 million beavers today. No trace of regulation by predators.
Of course it happens that individual predators also prey on several beavers regionally, in some places there may even be real specialists. However, this does not have an impact on the total population, as the above figures impressively show.
There is therefore no population regulation by natural enemies in beavers, even where wolf, bear and lynx still occur in large numbers. Here other mechanisms come into play, especially the beaver's self-regulation via the territory system (see claim on "
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