Ecology, management, and conservation implications of North American beaver (Castor canadensis) in dryland streams

@article{Gibson2014EcologyMA,
  title={Ecology, management, and conservation implications of North American beaver (Castor canadensis) in dryland streams},
  author={Polly P. Gibson and Julian D. Olden},
  journal={Aquatic Conservation-marine and Freshwater Ecosystems},
  year={2014},
  volume={24},
  pages={391-409}
}
  • Polly P. Gibson, J. Olden
  • Published 1 June 2014
  • Environmental Science
  • Aquatic Conservation-marine and Freshwater Ecosystems
After near-extirpation in the early 20th century, beaver populations are increasing throughout many parts of North America. Simultaneously, there is an emerging interest in employing beaver activity for stream restoration in arid and semi-arid environments (collectively, ‘drylands’), where streams and adjacent riparian ecosystems are expected to face heightened challenges from climate change and human population growth. Despite growing interest in reintroduction programmes, surprisingly little… 

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References

SHOWING 1-10 OF 88 REFERENCES
The ecological role of beavers (Castor canadensis) in a Southwestern desert stream
The Ecological Role of Beavers {Castor canadensis) in a Southwestern Desert Stream by Bryan James Harper Dr. Stanley Smith and Dr. Peter Starkweather. Examining Committee Chairs Professors o f
Conservation of riparian ecosystems in the United States
TLDR
Riparian ecosystems include relatively mesic vegetative communities and associated faunas occurring between aquatic and more xeric upland sites and are most obvious in steppe, shrubsteppe, and desert regions.
Hydrology, Geomorphology and Management: Implications for Sustainability of Native Southwestern Fishes
Native southwestern fishes have declined markedly in range and numbers. The factors responsible for their decline are many and varied. However, the primary stressors to native fish assemblages in
Management by Assertion: Beavers and Songbirds at Lake Skinner (Riverside County, California)
TLDR
A case study of modern reserve management wherein beavers were suspected of destroying habitat for endangered songbirds and for promoting the invasion of an exotic plant at an artificial reservoir in southern California is presented.
Restoration of riparian vegetation in the south-western United States: importance of flow regimes and fluvial dynamism
Riparian ecosystems in the south-western United States have undergone extensive physical and biological changes, due, in part, to alteration of natural flow regimes and suppression of fluvial
Beavers Are Partners in Riparian Restoration on the Zuni Indian Reservation
for rare birds. I n the semi-arid high desert of the Colorado Plateau, the Zuni Indians of New Mexico have long known the value of healthy riparian areas, lakes, wetlands, and springs. Aboriginal
The historical range of beaver in the Sierra Nevada: a review of the evidence
The North American beaver (Castor canadensis) has not been considered native to the midor high-elevations of the western Sierra Nevada or along its eastern slope, although this mountain range is
Patterns in Shoreline Vegetation and Soils Around Lake Mohave, Nevada and Arizona: Implications for Management
ABSTRACT. Lake Mohave, on the lower Colorado River in Nevada and Arizona, was created by the construction of Davis Dam for power generation, flood control, and water supply. Management has led to the
Feasibility of non-lethal approaches to protect riparian plants from foraging beavers in North America
Beavers in North America will occupy almost any wetland area containing available forage. Wetland restoration projects often provide the resources necessary for dispersing beavers to create desirable
Recent History (1988–2004) of Beaver Dams along Bridge Creek in Central Oregon
Bridge Creek is a low-gradient stream in the John Day River basin of eastern Oregon. After decades of grazing, riparian vegetation along a 31.7 km reach was sparse and low in diversity, vegetated
...
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