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.

Post Title

Published by

Published date

Short article description

Showing 525 articles

Prevalence of Agglutinating Antibodies to Toxoplasma gondii and Sarcocystis neurona in Beavers (Castor canadensis) From Massachusetts

Published by: Journal of Parasitology

1st October 2005

Researchers investigated the presence of two parasites in beavers from Massachusetts, USA. 62 blood samples were collected and tested showing a low overall prevalence: 10% of samples were positive for T. gondii and 6% for S. neurona. The presence of these parasites in beavers suggests they have been ingesting it from nearby water or foliage, possibly as a result of contamination by cats or opossums.

Mitochondrial phylogeography of the Eurasian beaver Castor fiber L.

Published by: Molecular Ecology

1st October 2005

In this study, researchers analysed the genes of Eurasian beaver populations from across Eurasia. They focused on 8 'relict' populations that survived the peak of beaver overhunting in the late 1800s. They found 16 types of gene pattern, none of them shared by more than one of these populations. However, these 16 patterns can be grouped in two main genetic lineages, eastern and western, which were possibly formed during the last ice age. The study suggests managing each population as a distinct unit and offers guidelines for future conservation efforts.

Beavers, Castor canadensis, Feeding on Salmon Carcasses: Opportunistic Use of a Seasonally Superabundant Food Source

Published by: Canadian Field-Naturalist

1st October 2005

This article reports on three occasions between 1999 and 2004 where Alaskan beavers were seen feeding on Chinook Salmon carcasses. They were seen actively seeking out carcasses, swimming with carcasses in their mouths, or using their forefeet to handle and chew the salmon. Many other plant-eating mammals are known to occasionally eat meat but this had never been reported before for beavers. Although unusual, the authors suggested this may be a common strategy of Alaskan beavers to make the most of the seasonal protein source provided by salmon runs.

Ageing the beaver (Castor fiber L.): A skeletal development and life history calendar based on epiphyseal fusion

Published by: Archaeofauna

1st October 2005

Researchers worked out how to tell the age of beavers by looking at their bones. They found that beavers take a long time, up to 12 years, to fully develop their skeletons, probably because they live in water. This slow development allowed them to divide beaver skeletons into five age groups: young, middle-aged, and old adults, as well as juveniles and subadults. Alongside other ageing methods such as analysing beaver teeth, this will help studying beavers in the wild and in history.

Selection of in-stream wood structures by beaver in the Bear River, Southwest Washington

Published by: Northwestern Naturalist

1st September 2005

In efforts to restore habitats for Pacific salmon, wood structures are often placed in streams to encourage beaver activity. This is because beaver dams create pools for young salmon. This study discovered that beavers used only three types of structure in the Bear River, USA, to build dams. The researchers developed a model to predict which structure beavers were likely to use, based on the features of the structures and their environment. This helps design better wood placement projects for salmon habitat restoration.

Scroll to Top