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

@article{McDowell2004StructureAF,
  title={Structure and function of a benthic invertebrate stream community as influenced by beaver (Castor canadensis)},
  author={Donald M. McDowell and Robert J. Naiman},
  journal={Oecologia},
  year={2004},
  volume={68},
  pages={481-489}
}
SummaryBeaver (Castor canadensis) affect the benthic invertebrate community of small woodland streams in Quebec through habitat modifications. Their activities influence community structure through the replacement of lotic taxa by lentic forms and community function by increasing the absolute importance of collectors and predators while decreasing the relative importance of shredders and scrapers in impounded sites. At our study site during the 1983 ice-free season, standing stocks of coarse… 
Influence of beaver ponds on the macroinvertebrate benthic community in lowland brooks
TLDR
The effects of beaver dams on invertebrate benthic communities were examined in two semi-natural lowland brooks, finding significant differences in proportions of shredders and passive filter feeders (decreasing in ponds), whereas predators increased in the ponds compared to the downstream section of the brooks.
Composition, invertebrate community and productivity of a beaver dam in comparison to other stream habitat types
TLDR
Beavers significantly increase the heterogeneity of faunal composition and productivity of small brooks, and the density of emerging Trichoptera (especially filter-feeding species) was increased.
Beaver invasion alters terrestrial subsidies to subantarctic stream food webs
North American beavers (Castor canadensis) were introduced to Tierra del Fuego Island in 1946 for their fur, and have since spread across the archipelago and onto the South American mainland. We
Ecological impact of Eurasian beaver (Castor fiber) activity on macroinvertebrate communities in Lithuanian trout streams
TLDR
It is found that beaver activity affects macroinvertebrate assemblages of both beaver ponds and downstream sites, and Plecoptera and Coleoptera were absent from beaver pond sites.
Macroinvertebrate abundance, water chemistry, and wetland characteristics affect use of wetlands by avian species in Maine
TLDR
Findings suggest that for lentic wetlands created by beaver, those habitats contained vegetative structure and nutrients necessary to provide cover to support invertebrate populations that are prey of omnivore and insectivore species, the fishless status of a few wetlands may have affected use by some waterfowl species and obligate piscivores.
Activity of beavers as an ecological factor that affects the benthos of small rivers - a case study in the Żylica River (Poland)
TLDR
The study showed a lower density of benthos above the dam compared to the river, while below the dam, the diversity of Trichoptera and Coleoptera was greater, while Diptera were more abundant in the beaver pond.
Beaver impact on stream fish life histories: the role of landscape and local attributes
The Eurasian beaver (Castor fiber) has been reintroduced into the Carpathian Mountains and has once again become an important factor for modifying streams. Forty-three sampling sites were compared
Beavers (Castor canadensis) influence habitat for juvenile salmon in a large Alaskan river floodplain
TLDR
Beavers reduced habitat connectivity and added variability to macroinvertebrate assemblages within habitats by damming floodplain spring brooks, although the presence of beaver dams strongly limited the use of late-successional ponds on the large alluvial river fioodplain.
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
TLDR
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.
Beaver populations and their relation to wetland habitat and breeding waterfowl in Maine
TLDR
Overall, a ≥1-year closure of beaver trapping is sufficient to increase the density ofBeaver colonies, whereas a 2–3 year closure is necessary to increase wetland habitat.
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TLDR
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