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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From the Field: Efficacy of Tail-Mounted Transmitters for Beaver

Published by: Wildlife Society Bulletin

1st March 2006

In 2001, tail-mounted transmitters were attached to 41 beavers in the USA. Most fell off and some were lost inside lodges. Some of the transmitters that had fallen off were found intact but many had missing antennas, likely chewed off. Overall, tail-mounted transmitters were of limited success in this study and are not recommended for long-term monitoring without significant modifications to the original design. Please note, this resource is not open-access.

Efficacy of Cartridge Type and Projectile Design in the Harvest of Beaver

Published by: Wildlife Society Bulletin

1st March 2006

In this article, researchers compare the impacts of two types of bullet for shooting beavers. These impacts included the damage to the beavers skin and the amount of meat lost in the process. They also estimated that 98% of the beavers in this study died instantly.

Bevers in de Biesbosch: griendwerkers van de toekomst?

Published by: Landschap

1st January 2006

This paper reports on the impact of a programme to re-introduce beavers to the Netherlands which started in 1988. Initially challenging, the beaver population now appears to be stable. However, beavers appear to be primarily eating rarer non-willow tree species, slowing down the diversification of the floodplain forest rather than accelerating it. Please note, this paper is mostly written in Dutch.

Impact of debris dams on hyporheic interaction along a semi-arid stream

Published by: Hydrological Processes

1st January 2006

This study looked at how beaver dams and meanders affected the interaction of stream water with sediment below the stream. The area of study - in the USA - was pretty dry, meaning that beaver wetlands are uncommon, but dams still exist. This water-sediment interaction is important for trapping nutrients and pollutants, especially in areas damaged by livestock. The researchers found that beaver dams and meanders enhance this interaction. However, in some reaches of the stream, the trapping of sediment was longer-term than in others. Please note, this resource is not open access.

Abundance and distribution of American beaver, Castor canadensis (Kuhl 1820), in Tierra del Fuego and Navarino Islands, Chile

Published by: European Journal of Wildlife Research

1st January 2006

In 1946, beavers were introduced to Tierra del Fuego in Argentina. Their population has rapidly expanded, negatively affecting local forests - particularly species of Southern beech. Between 1999 and 2001, these scientists studied beaver density in Chile, to where they had spread. The beaver population in Chile alone is now estimated at 61,300 individuals, increasing and expanding at a rate of 2.6–6.3 km/year.

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