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Bethany Bradley - University of Massachusetts Amherst. Amherst, MA, US

Bethany Bradley Bethany Bradley

New England Climate Adaption Science Center Principal Investigator and Associate Professor in Environmental Conservation | University of Massachusetts Amherst


Bethany Bradley studies the interactions between invasive species, land use and climate change.


Areas of Expertise (8)

Invasive Plant Species

Invasive Plant Issue

Invasion Ecology

Climate Change Adaptation

Climate Change


Spatial Ecology

Invasive Plants


An expert on the interactions between invasive species, land use and climate change, Bethany Bradley has commented for national and international media including The New York Times, The Boston Globe, The Los Angeles Times and PBS.

In her work at the Northeast Climate Science Center and UMass Amherst Department of Environmental Conservation, she seeks to improve forecasting of future changes to ecosystems, particularly risks of non-native plant invasions, using tools from biogeography and landscape ecology. Her research has implications for invasion ecology, natural resource management and biological conservation.


Video Appearances





Bethany Bradley tutorial video


Education (3)

Brown University: Ph.D., Geological Sciences

Pomona College: B,A,, Geology

Brown University: M.A., Geological Sciences

Press Coverage (2)

California Cities Turn To Hired Hooves To Help Prevent Massive Wildfires

WGBH  radio


A recent study from the University of Massachusetts Amherst, found that grasses are increasing the frequency of wildfires because of how easily they burn. "If you throw a bunch of matches into a forest, some small percentage of them might actually start a fire, but if you throw a bunch of matches into a big hay pile," says Bethany Bradley, professor of environmental conservation at UMass Amherst, and co-author of the study. "There's a good chance that many of those will catch fire."

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Alien grasses are making wildfires more frequent in the U.S., study finds

Los Angeles Times  print


For much of the United States, invasive grass species are making wildfires more frequent, especially in fire-prone California, a new study finds. Twelve non-native species act as “little arsonist grasses,” said study co-author Bethany Bradley, a University of Massachusetts professor of environmental conservation.

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Publications (1)

Disentangling the abundance–impact relationship for invasive species

Proceedings of the National Academy of Sciences

Bethany A. Bradley et al


To predict the threat of biological invasions to native species, it is critical that we understand how increasing abundance of invasive alien species affects native populations and communities.

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