Ecological impact of beavers Castor fiber and Castor canadensis and their ability to modify ecosystems

@article{Rosell2005EcologicalIO,
  title={Ecological impact of beavers Castor fiber and Castor canadensis and their ability to modify ecosystems},
  author={Frank Rosell and Orsolya Bozs{\'e}r and Peter L. Collen and Howard Parker},
  journal={Mammal Review},
  year={2005},
  volume={35},
  pages={248-276}
}
The genus Castor comprises two species: the Eurasian beaver Castor fibre , and the North American beaver Castor canadensis . Both species suffered from overexploitation, but have seen a revival since the 1920s due to increased protection and reintroduction programmes. Increases in the populations and distributions of species that are able to modify ecosystems have generated much scientific interest. Here we review the available literature concerning the possible ecological impact of beaver… 

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References

SHOWING 1-10 OF 220 REFERENCES

Small mammals, ectomycorrhizae, and conifer succession in beaver meadows

Beaver (Castor canadensis) build dams and create ponds on streams within forested areas. Upon abandonment, ponds often drain and the subsequent meadows persist for decades as graminoid patches that

Macrophyte succession in Minnesota beaver ponds

Ponds of intermediate age (11–40 years) had the highest diversity, with both floating-leaved and submersed life forms represented, and Compositional trends were best explained by propagule dispersal traits.

Ecosystem Alteation of Boreal Forest Streams by Beaver (Castor Canadensis)

Beaver (Castor canadensis) alter the structure and dynamics of aquatic ecosystems with a minimum of direct energy or nutrient transfer. Through dam building and feeding activities, beaver act as a

Beaver as Engineers: Influences on Biotic and Abiotic Characteristics of Drainage Basins

We review how beaver (Castor canadensis) affect ecosystem states and processes (e.g., biogeochemical cycles, nutrient retention, geomorphology, biodiversity, community dynamics, and structural

Comeback of the beaver Castor fiber : an overview of old and new conservation problems

Browse selection by beaver: effects on riparian forest composition

Intense beaver foraging of trembling aspen decreased tree density and basal area by as much as 43% within ~ 1-ha forage zones surrounding two beaver ponds in northern Minnesota, with long-term implications to forest succession and dynamics.

The general ecology of beavers (Castor spp.), as related to their influence on stream ecosystems and riparian habitats, and the subsequent effects on fish – a review

The practicality and benefits of reintroducing or restoring beaver populations will vary according to location, and should be considered in conjunction with a managementplan to control their densities.

THE IMPORTANCE OF BEAVER TO WETLAND HABITATS AND WATERFOWL IN WYOMING 1

ABSTRACT: Beaver (Castor canadensis) are habitat‐modifying keystone species, and their activities broadly influence many other plants and animals. Beaver are especially important to waterfowl in the

Effects of beaver dams on the fish fauna of forest streams

Structure and function of a benthic invertebrate stream community as influenced by beaver (Castor canadensis)

The results suggest that current paradigms applied to lotic ecosystems need to be reevaluated to incorporate the influence of beaver upon invertebrate communities.
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