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Ecological impacts of wind energy development on bats  

Author:  | Maryland, Pennsylvania, U.S., Virginia, West Virginia, Wildlife

Thomas Kunz, of the Center for Ecology and Conservation Biology, Boston University, with colleagues from Bat Conservation International, Western EcoSystems Technology, the U.S. Fish and Wildlife Service, the Illinois Natural History Survey, and the National Renewable Energy Laboratory, reviews the state of knowledge about impacts of wind energy facilities on bats. Published in Frontiers in Ecology and the Environment, August 2007.

Of particular concern is the cumulative effect of continuing wind energy development. Based on existing studies and the proposal queue for the mid-Atlantic grid, they project annual bat fatilities of up to 111,000 by 2020.

Abstract:  At a time of growing concern over the rising costs and long-term environmental impacts of the use of fossil fuels and nuclear energy, wind energy has become an increasingly important sector of the electrical power industry, largely because it has been promoted as being emission-free and is supported by government subsidies and tax credits. However, large numbers of bats are killed at utility-scale wind energy facilities, especially along forested ridgetops in the eastern United States. These fatalities raise important concerns about cumulative impacts of proposed wind energy development on bat populations. This paper summarizes evidence of bat fatalities at wind energy facilities in the US, makes projections of cumulative fatalities of bats in the Mid-Atlantic Highlands, identifies research needs, and proposes hypotheses to better inform researchers, developers, decision makers, and other stakeholders, and to help minimize adverse effects of wind energy development.

Download original document: “Ecological impacts of wind energy development on bats

This article is the work of the author(s) indicated. Any opinions expressed in it are not necessarily those of National Wind Watch.

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