Science database

KNOWLEDGE BASE

We have gathered decades of scientific research from Great Britain, continental Europe and North America to share with people interested in diving deeper into the world of beavers.

This list of resources is being constantly amended and updated.

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Admixture of two phylogeographic lineages of the Eurasian beaver in Poland

Published by: Mammalian Biology

1st September 2014

In Poland, documented beaver reintroductions have mostly used beavers from eastern Europe, but the country sits quite close to Germany. Beavers from Germany have a different genetic lineage. This paper looks at the DNA of 77 beavers from different parts of Poland and sees that beavers from Germany have likely migrated into Poland naturally, too. The paper discusses implications for how we understand the genetic lineages of Eurasian beavers. Please note, this resource is not open-access.

Sex discrimination via anal gland secretion in a territorial monogamous mammal

Published by: Ethology

12th July 2014

Unusually for rodents, beavers are monogamous. This study tested if Eurasian beavers can tell the sex of intruders based on scent. Both sexes responded more strongly to the scents of male intruders rather than female intruders. This suggests that they can tell the difference and that the male poses more of a threat.

The impact of beaver dams on the morphology of a river in the eastern United States with implications for river restoration

Published by: Earth Surface Processes and Landforms

1st July 2014

River restoration projects in the USA often aim to stabilise channels and store sediment. Introducing beavers is being considered to achieve these aims. This text reports on how beavers' dam-building activity impacted the evolution of a river channel. This is a river at a gradient and on a type of soil which hadn't been researched much before! The results showed that beavers could be helpful for river restoration, stabilising the river channel and encouraging sediment deposition.

Nuclear and mitochondrial genetic structure in the Eurasian beaver (Castor fiber) – implications for future reintroductions

Published by: Evolutionary Applications

1st June 2014

This text describes how impotrant genetic analysis can be to ensure success in beaver reintroductions. The authors report on a study of beaver genetics when considering potential candidate beavers for reintroduction to Scotland. Finally, the authors discuss the challenges of balancing genetic diversity and similarity when choosing source populations for reintroduction.

Beavers (Castor canadensis) influence habitat for juvenile salmon in a large Alaskan river floodplain

Published by: Freshwater Biology

1st June 2014

By damming, beavers impact the habitats available in an Alaskan river. This influenced other aspects of the ecosystem, including the amount and distribution of juvenile salmon. Such young salmon could still access most of the small streams and young ponds, but were blocked from accessing some of the older ponds. Times of flood helped the salmon to get around the dams.

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