A text by Catherine Contant
A study by researchers from the University of Oregon shows that the population of Trembri. Similarly, a kind of tree, is regenerating in Yellowstone National Park. Meanwhile, It’s unheard of for several decades!
The researchers think that the return of the tremble is due. Furthermore, among other things, to the reintroduction of wolf in the park. In addition, Because of the hunt, this predator had completely disappeared from the region.
Yellowstone National Park is found in the territory of three American states: Wyoming, Montana and Idaho.
Photo : Radio-Canada
Yellowstone is the first national park to have been created on the planet. It is mainly located in the state of Wyoming, in the United States. Completely natural, it notably houses the Grand Canyon.
With the disappearance of the wolf, the population of Wapitis exploded in Yellowstone. For years, the Wapitis have devoured and trampled on the young shoots of trembling, leaving only the old trees.
A chain reaction
30 years ago, scientists decided to release wolves at Yellowstone Park. Since then, the population of Wapitis has decreased enormously, while the trembled babies have multiplied.
Illustration of the chain reaction that the presence of wolves goes to Yellowstone National Park.
Photo : Radio-Canada
Much more than a tree
The researchers expect the return of the wolf to have beneficial effects on the entire ecosystem of Yellowstone Park. Indeed. the tremble is much more than a tree: it is habitat and a source of food for many species of birds, insects and mammals.
« This is a remarkable example of ecological restoration. The reintroduction of the wolf leads to long -term ecological changes that help increase biodiversity and diversity of habitats. »
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