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Bats not bothered by forest fires, study finds
Date:3/6/2013

A survey of bat activity in burned and unburned areas after a major wildfire in the southern Sierra Nevada mountains found no evidence of detrimental effects on bats one year after the fire. The findings suggest that bats are resilient to high-severity fire, and some species may even benefit from the effects of fire on the landscape.

The study, led by bat ecologist Winifred Frick of the University of California, Santa Cruz, will be published in the journal PLOS ONE on March 6. The findings are important because current understanding of how wildlife responds to fire is based almost entirely on studies of a limited number of species, most of them birds, Frick said. Bats make up a large component of mammalian diversity in forest ecosystems, where they play an important role as insect predators.

"This is the first study to directly address species-level response by bats to stand-replacing fire, and our results show that moderate to high-severity fire has neutral or positive impacts on a suite of bat species," Frick said.

Studies that show how animals respond to fire help inform the ongoing public policy debate over the role of fire in ecosystem management and whether fires should be suppressed or allowed to burn on public lands, according to coauthor Joseph Fontaine, a fire ecologist at Murdoch University in Perth, Australia.

"A great deal of tension exists between public land managers, environmental groups, and other stakeholders--including homeowners, ranching interests, and the timber industry--over allowing stand-replacing crown fires on public forests," Fontaine said. "This study fills a critical gap on how fire affects an important group of animals."

The researchers conducted the study in an area of Sequoia and Inyo National Forests where the 2002 McNally Fire burned more than 150,000 acres. The fire burned with mixed severity, leaving a mosaic of low- to high-severity damage, as well as patches of unburn
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Contact: Tim Stephens
stephens@ucsc.edu
831-459-2495
University of California - Santa Cruz
Source:Eurekalert

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