Cited by 70Bat Biology and Ecology StudiesEcology and biodiversity studiesWildlife Ecology and Conservation

Bats benefit from beavers: a facilitative link between aquatic and terrestrial food webs

Nummi, Petri, Kattainen, Saara, Ulander, Paula, Hahtola, Anna·2011·Biodiversity and Conservation

Abstract

Bat populations are declining in many areas, partly because up to two-thirds of their wetland habitats have been lost. One natural agent creating wetlands is the beaver, which is recolonizing its former range. Beaver flowages are known for their high production of aquatic invertebrates. We tested the hypothesis that the high numbers of insects emerging from beaver flowages influences their use by foraging bats. We compared bat use and bat numbers above flowages of introduced Canadian beavers Castor canadensis and in nearby control ponds where beavers were absent. The two bat species detected, Eptesicus nilssoni and Myotis daubentoni, used beaver flowages more than non-beaver ponds. This is especially the case for Eptesicus nilssoni. Bats also seemed to forage in larger groups while above beaver ponds compared to the control ponds. Beaver flowages appeared to improve bat habitats. A plausible reason for this could be the high number of insects emerging from beaver ponds. Favouring the beaver in habitat management is a tool for creating suitable conditions for many other species, such as bats. In areas not suited for the beaver, insect production can be achieved by imitating the beaver with man-made impoundments. This is especially important in areas which have lost most of their wetlands.

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Crossref · 10.1007/s10531-010-9986-7

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53 of 53 references verified0 citation errors · 0 not checkable

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  • Many terrestrial species, including insect pollinators, birds, bats, and other mammals, rely on ponds for water, food, and habitat.

    “Alongside aquatic species, many terrestrial species, including insect pollinators, birds, bats, and other mammals rely on ponds for water, food, and habitat (Nummi et al. 2011, Lewis-Phillips et al. 2020).”

    From Pond ecology and conservation: research priorities and knowledge gaps (2021) · cites this paper as Nummi et al. 2011

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Authors
Nummi, P., Kattainen, S., Ulander, P., & Hahtola, A.
Affiliations
University of Helsinki (FI)
Corresponding author
Nummi, Petri
Venue
Biodiversity and Conservation
Published
2011-01-12
Volume
20
Issue
4
Pages
851-859
ISSN
  • 0960-3115 (ISSN-L)
  • 1572-9710
OpenAlex
W1999805233
Cited by
70
References
54
Citations by year
2026: 5 · 2025: 6 · 2024: 11 · 2023: 5 · 2022: 8 · 2021: 5 · 2020: 7 · 2019: 3 · 2018: 4 · 2017: 3 · 2016: 4 · 2015: 2 · 2014: 6 · 2012: 1
FWCI
2.44
Type
journal article
Language
en
Open access
closed
Locations
Biodiversity and Conservation (publishedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Bat Biology and Ecology Studies
  • Physical Sciences › Environmental Science › Ecology › Ecology and biodiversity studies
  • Physical Sciences › Environmental Science › Ecology › Wildlife Ecology and Conservation
Keywords
bats, beavers, Castor canadensis, Myotis daubentoni, wetland habitat, aquatic-terrestrial linkages, insect emergence, bat foraging behavior, group foraging, wetland restoration, bat population decline

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