World's biggest beaver dam discovered in northern Canada
A Canadian ecologist has discovered the world's largest beaver dam in a remote area of northern Alberta, an animal-made structure so large it is visible from space.
A Canadian ecologist has discovered the world's largest beaver dam in a remote area of northern Alberta, an animal-made structure so large it is visible from space.
Plants & Animals
May 6, 2010
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Beavers are some of the world's most prolific ecosystem engineers, creating, maintaining and radically altering wetlands almost everywhere they live. But what, if anything, might control this engineering by beavers and influence ...
Plants & Animals
Nov 13, 2020
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478
Utah State University scientists report a watershed-scale experiment in highly degraded streams within Oregon's John Day Basin demonstrates building beaver dam analogs allows beavers to increase their dam building activities, ...
Ecology
Jul 8, 2016
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Beavers could help clean up polluted rivers and stem the loss of valuable soils from farms, new research shows.
Environment
May 9, 2018
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For thousands of years, beavers had a big influence on the Dutch ecosystem and the people that lived there. This is the conclusion of research by archaeologist Nathalie Brusgaard. The rodents were used for food, clothing ...
Archaeology
Oct 17, 2023
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534
Giant beavers the size of black bears once roamed the lakes and wetlands of North America. Fortunately for cottage-goers, these mega-rodents died out at the end of the last ice age.
Archaeology
May 30, 2019
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(Phys.org)—Wolves and Yellowstone. In the public mind, and in nature, the two are inextricably linked. Now, it turns out, they aren't alone on the ecological dance floor.
Ecology
Feb 8, 2013
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Can wolf personalities change ecosystems? According to the latest research from the Voyageurs Wolf Project, published in Frontiers in Ecology and the Environment, they can.
Plants & Animals
Jun 6, 2022
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A team of land managers at the University of Minnesota, working with a colleague at the University of Manitoba, has learned more about the role wolves play in boreal forest dynamics as they prey on beavers. In their study, ...
Ellen Wohl, a geology professor at Colorado State University, has published a paper in the journal Geophysical Research Letters, describing the role beavers play in climate change. In a field study she undertook, she found ...
The beaver (genus Castor) is a primarily nocturnal, large, semi-aquatic rodent. Castor includes two extant species, North American Beaver (Castor canadensis) (native to North America) and Eurasian Beaver (Castor fiber) (Eurasia). Beavers are known for building dams, canals, and lodges (homes). They are the second-largest rodent in the world (after the capybara). Their colonies create one or more dams to provide still, deep water to protect against predators, and to float food and building material. The North American beaver population was once more than 60 million, but as of 1988 was 6–12 million. This population decline is due to extensive hunting for fur, for glands used as medicine and perfume, and because their harvesting of trees and flooding of waterways may interfere with other land uses.
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