Classification of the alterations of beaver dams to headwater streams in northeastern Connecticut, U.S.A
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Beaver Ponds: Resurgent Nitrogen Sinks for Rural Watersheds in the Northeastern United States.
Beaver-created ponds and dams, on the rise in the northeastern United States, reshape headwater stream networks from extensive, free-flowing reaches to complexes of ponds, wetlands, and connecting streams. We examined seasonal and annual rates of nitrate transformations in three beaver ponds in Rhode Island under enriched nitrate-nitrogen (N) conditions through the use of N mass balance techniq...
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Mining in the early to mid 1900’s has degraded streams within the Beaver Creek watershed in Tucker County, West Virginia. Channels have incised to bedrock and banks suffer from severe erosion. The sediment supply surpasses the stream’s transport capacity, which has resulted in channel alterations. In a preliminary study, the headwater regions of two streams within the Beaver Creek watershed wer...
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1. 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...
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European beaver dams impeded movements of anadromous salmonids as it was established by fishing survey, fish tagging and redd counts in two lowland streams in Lithuania. Significant differences in abundancies of other litophilic fish species and evenness of representation by species in the community were detected upstream and downstream of the beaver dams. Sea trout parr marked with RFID tags p...
متن کاملThe influence of beaver dams on animal communities of streams and surrounding riparian zones
Beaver dams tend to increase habitat heterogeneity by breaking up streams into lentic and lotic sections. I investigated the impact of beaver dams on macroinvertebrates in and near Cart Creek in Newbury, MA. I found that the high spatial density of dams on this small creek suppresses aquatic species diversity, but the ponds might be increasing the species diversity of terrestrial macroinvertebr...
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