Michael J Adams
I lead the USGS Amphibian Research and Monitoring Initiative (ARMI) and the Herpetological Research Team at the Forest and Rangeland Science Center in Corvallis, Oregon
Research in my lab focuses on amphibian conservation issues. We are currently addressing issues such as invasive species, disease, land use change, and long-term monitoring design for amphibians in North America. We use a combination of comparative surveys and manipulative experiments to understand the factors affecting amphibian distribution and abundance.
Professional Experience
1997 - Present: USGS, Forest and Rangeland Ecosystem Science Center, Supervisory Research Ecologist, Corvallis, OR
Education and Certifications
Ph.D., Wildlife Science, University of Washington, Seattle, WA (1997)
B.S., Wildlife Biology, Colorado State University, Fort Collins, CO (1992)
Science and Products
Herpetological Research Team (FRESC)
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If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
Amphibian Research and Monitoring Initiative (ARMI): A successful start to a national program in the United States
Optical characteristics of natural waters protect amphibians from UV-B in the U.S. Pacific Northwest: Reply
Asymmetrical effects of introduced Rana catesbeiana on native ranid frogs in Oregon, USA
Asymmetrical effects of introduced Bullfrogs (Rana catesbeiana) on native Ranid Frogs in Oregon
Wetland management for amphibians in the Willamette Valley
Behavioral responses of anuran larvae to chemical cues of native and introduced predators in the Pacific Northwestern United States
The Amphibian Research and Monitoring Initiative in the Pacific Northwest
A comparison of bat activity at low and high elevations in the Black Hills of western Washington
Indirect facilitation of an anuran invasion by non-native fishes
Optical characteristics of natural waters protect amphibians from UV-B in the U.S. Pacific Northwest
The endemic headwater stream amphibians of the American Northwest: Associations with environmental gradients in a large forested preserve
Association of amphibians with attenuation of ultraviolet-b radiation in montane ponds
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
To request an interview, contact fresc_outreach@usgs.gov or call (541) 750-1030.
Science and Products
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Herpetological Research Team (FRESC)
The Herpetological Research Team focuses on issues related to conservation and management of amphibians and other aquatic and semi-aquatic species. Among our current studies are effects of invasive species, disease, and land use change on the dynamics of amphibian communities to inform conservation and management decision making.Filter Total Items: 13 - Data
If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
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If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
- Publications
If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
Filter Total Items: 107Amphibian Research and Monitoring Initiative (ARMI): A successful start to a national program in the United States
Most research to assess amphibian declines has focused on local-scale projects on one or a few species. The Amphibian Research and Monitoring Initiative (ARMI) is a national program in the United States mandated by congressional directive and implemented by the U.S. Department of the Interior (specifically the U.S. Geological Survey, USGS). Program goals are to monitor changes in populations of amAuthorsGary M. Fellers, Erin Muths, C. Kenneth Dodd, D. Earl Green, William A. Battaglin, P. Stephen Corn, M. J. Adams, Alisa L. Gallant, Robert N. Fisher, Cecil R. Schwalbe, Larissa L. Bailey, Walter J. Sadinski, Robin E. Jung, Susan C. WallsOptical characteristics of natural waters protect amphibians from UV-B in the U.S. Pacific Northwest: Reply
Few ecologists would dispute that exposure to high levels of ultraviolet-B radiation (UV-B) is detrimental to organisms. It is well established that UV-B has been a critical factor shaping the physiology (Blum et al. 1949, Hansson 2000), behavior (Pennington and Emlet 1986, van de Mortel and Buttemer 1998), and distribution (Williamson et al. 2001, Leavitt et al. 2003) of many aquatic species. RecAuthorsWendy J. Palen, Daniel E. Schindler, M. J. Adams, Christopher A. Pearl, R. Bruce Bury, S. A. DiamondAsymmetrical effects of introduced Rana catesbeiana on native ranid frogs in Oregon, USA
Introduced American Bullfrogs (Rana catesbeiana) have become widely established in the Pacific Northwest over the last century and are thought to be an important predator of native amphibians throughout the western United States. The Northern Red-Legged Frog (Rana aurora aurora) and Oregon Spotted Frog (Rana pretiosa) historically coexisted in portions of the Pacific Northwest now invaded by R. caAsymmetrical effects of introduced Bullfrogs (Rana catesbeiana) on native Ranid Frogs in Oregon
Introduced American Bullfrogs (Rana catesbeiana) have become widely established in the Pacific Northwest over the last century and are thought to be an important predator of native amphibians throughout the western United States. The Northern Red-Legged Frog (Rana aurora aurora) and Oregon Spotted Frog (Rana pretiosa) historically coexisted in portions of the Pacific Northwest now invaded by R. caAuthorsC.A. Pearl, M.J. Adams, R.B. Bury, B. McCrearyWetland management for amphibians in the Willamette Valley
Introduction In the past two decades, scientists around the world have increasingly noted losses of amphibian populations. Many of these declines have occurred in protected areas like national parks, where the causes mostly remain mysterious. However, in multipleuse landscapes, resource managers frequently face more obvious conservation problems and must make decisions that will affect amphibiaAuthorsM. J. Adams, Christopher A. Pearl, R. Bruce BuryBehavioral responses of anuran larvae to chemical cues of native and introduced predators in the Pacific Northwestern United States
We compared behavioral responses of larvae of three Pacific Northwest anurans from different hydroperiods to water borne cues of native and introduced predators. Two native anurans (Pacific Treefrog, Pseudacris regilla, and Northern Red-Legged Frog, Rana aurora aurora) and introduced Bullfrogs (Rana catesbeiana) responded to water conditioned by native Redside Shiners (Richardsonius balteatus) byAuthorsChristopher A. Pearl, M. J. Adams, Gerald S. Schuytema, A.V. NebekerThe Amphibian Research and Monitoring Initiative in the Pacific Northwest
Amphibians have been disappearing from many locations around the world with reports of declines increasing in recent decades. Some of the most dramatic declines have occurred in areas that were thought to be protected from human disturbance. For example, the once-common boreal toad has virtually disappeared from Rocky Mountain National Park in Colorado. Although there has been debate on whether thAuthorsM. J. AdamsA comparison of bat activity at low and high elevations in the Black Hills of western Washington
We examined the differences in activity patterns and community structure of bats between low (AuthorsJ. Erickson, M. J. AdamsIndirect facilitation of an anuran invasion by non-native fishes
Positive interactions among non-native species could greatly exacerbate the problem of invasions, but are poorly studied and our knowledge of their occurrence is mostly limited to plant-pollinator and dispersal interactions. We found that invasion of bullfrogs is facilitated by the presence of co-evolved non-native fish, which increase tadpole survival by reducing predatory macroinvertebrate densiAuthorsM. J. Adams, Christopher A. Pearl, R. Bruce BuryOptical characteristics of natural waters protect amphibians from UV-B in the U.S. Pacific Northwest
Increased exposure to ultraviolet-B (UV-B) radiation has been proposed as a major environmental stressor leading to global amphibian declines. Prior experimental evidence from the U.S. Pacific Northwest (PNW) indicating the acute embryonic sensitivity of at least four amphibian species to UV-B has been central to the literature about amphibian decline. However, these results have not been expandedAuthorsWendy J. Palen, David E. Schindler, M. J. Adams, Christopher A. Pearl, R. Bruce Bury, S. A. DiamondThe endemic headwater stream amphibians of the American Northwest: Associations with environmental gradients in a large forested preserve
We used a large forested preserve (Olympic National Park, USA) to examine the habitat associations of a unique and environmentally sensitive stream amphibian fauna: Ascaphus truei Stegneger, Rhyacotriton olympicus (Gaige) and Dicamptodon copei Nussbaum. We quantified the relative abundance of stream amphibians and compared them to physical, topographic, climatic and landscape variables. All threeAuthorsM. J. Adams, R. Bruce BuryAssociation of amphibians with attenuation of ultraviolet-b radiation in montane ponds
Ambient ultraviolet-b (UV-B) radiation (280–320 nm) has increased at north-temperate latitudes in the last two decades. UV-B can be detrimental to amphibians, and amphibians have shown declines in some areas during this same period. We documented the distribution of amphibians and salmonids in 42 remote, subalpine and alpine ponds in Olympic National Park, Washington, United States. We inferred reAuthorsM. J. Adams, Daniel E. Schindler, R. Bruce BuryNon-USGS Publications**
Adams, M.J., 1993, Summer nests of the tailed frog (Ascaphus truei) from the Oregon Coast Range: Northwestern Naturalist, v. 74, no. 1, p. 15-18.**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
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