Reasons for dam migration

Beaver rebuilt the tundra, reshaped the landform and built more than 654.38 million dams.

What these beaver immigrants mean to the Arctic ecosystem is still inconclusive. Anyway, with or without beavers, the whole world is getting warmer, and the Arctic is no exception. Most scientists think the beaver project is beneficial. The pond formed by the beaver dam on the tundra makes everything around more prosperous. Dam ponds provide habitats for a range of organisms, including insects, frogs and songbirds. You see, the small pier protruding from the pond is the beaver's cabin.

However, local fishermen are somewhat worried.

Fishermen are worried that the beaver dam may pose a threat to the migration of fish on which local people depend. Beaver has developed a little too fast-for example, under the eyes of fishermen in Baldwin Peninsula, the number of beaver dams soared from 94 in 20 10 to 409 in 20 19.

Fishing became difficult-the fisherman's boat was stopped by the dam.

Although it has brought trouble to fishermen to move their boats, the number of fish has not decreased. Beaver dam will not hinder the migration of fish-Arctic salmon, the most important local fish product, lives in the ocean for part of its life cycle, but lays eggs and overwinters in tundra streams. The location, height and density of beaver dam have little influence on them.

Even the beaver dam is more beneficial to fish-it creates a better habitat for young salmon.