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)
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.
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.
Using occupancy models to understand the distribution of an amphibian pathogen, Batrachochytrium dendrobatidis
Short-term effect of cattle exclosures on Columbia Spotted Frog (Rana luteiventris) populations and habitat in northeastern Oregon
Widespread occurrence of the chytrid fungus batrachochytrium dendrobatidis on oregon spotted frogs (rana pretiosa)
A Protocol for Aging Anurans Using Skeletochronology
Range-wide phylogeographic analysis of the spotted frog complex (Rana luteiventris and Rana pretiosa) in northwestern North America
Occurrence of Batrachochytrium dendrobatidis in amphibian populations in Denmark
Demography and movement in a relocated population of Oregon Spotted Frogs (Rana pretiosa): Influence of season and gender
Batrachochytrium dendrobatidis in Amphibian populations in Italy
Characteristics of Columbia spotted frog (Rana luteiventris) oviposition sites in northeastern Oregon, USA
Incidence of the fungus Batrachochytrium dendrobatidis in amphibian populations along the northwest coast of North America
Occurrence of the amphibian pathogen Batrachochytrium dendrobatidis in the Pacific Northwest
Occurrence of the amphibian pathogen Batrachochytrium dendrobatidis in Pacific Northwestern USA
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
- Science
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.
Filter Total Items: 23No Result Found - Multimedia
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: 107Using occupancy models to understand the distribution of an amphibian pathogen, Batrachochytrium dendrobatidis
Batrachochytrium dendrobatidis is a fungal pathogen that is receiving attention around the world for its role in amphibian declines. Study of its occurrence patterns is hampered by false negatives: the failure to detect the pathogen when it is present. Occupancy models are a useful but currently underutilized tool for analyzing detection data when the probability of detecting a species is <1. We uAuthorsM. J. Adams, Nathan Chelgren, David M. Reinitz, Rebecca A. Cole, L.J. Rachowicz, Stephanie Galvan, Brome McCreary, Christopher A. Pearl, Larissa L. Bailey, Jamie B. Bettaso, Evelyn L. Bull, Matthias LeuShort-term effect of cattle exclosures on Columbia Spotted Frog (Rana luteiventris) populations and habitat in northeastern Oregon
Livestock grazing is a common land use across the western United States, but concerns have been raised regarding its potential to affect amphibian populations. We studied the short-term effects of full and partial livestock grazing exclosures on Rana luteiventris (Columbia Spotted Frog) populations using a controlled manipulative field experiment with pre- and posttreatment data (2002–2006). DespiAuthorsM. J. Adams, Christopher Pearl, Brome McCreary, Stephanie Galvan, Stephanie J. Wessell, Wendy Wente, Chauncey W. Anderson, Allison B. KuehlWidespread occurrence of the chytrid fungus batrachochytrium dendrobatidis on oregon spotted frogs (rana pretiosa)
The pathogen Batrachochytrium dendrobatidis (Bd) has been associated with amphibian declines in multiple continents, including western North America. We investigated Bd prevalence in Oregon spotted frog (Rana pretiosa), a species that has declined across its range in the Pacific Northwest. Polymerase chain reaction analysis of skin swabs indicated that Bd was prevalent within populations (420 of 6AuthorsC.A. Pearl, J. Bowerman, M.J. Adams, N.D. ChelgrenA Protocol for Aging Anurans Using Skeletochronology
Age distribution information can be an important part of understanding the biology of any population. Age estimates collected from the annual growth rings found in tooth and bone cross sections, often referred to as Lines of Arrested Growth (LAGs), have been used in the study of various animals. In this manual, we describe in detail all necessary steps required to obtain estimates of age from anurAuthorsBrome McCreary, Christopher A. Pearl, M. J. AdamsRange-wide phylogeographic analysis of the spotted frog complex (Rana luteiventris and Rana pretiosa) in northwestern North America
The dynamic geological and climatic history of northwestern North America has made it a focal region for phylogeography. We conducted a range-wide phylogeographic analysis of the spotted frog complex (Rana luteiventris and Rana pretiosa) across its range in northwestern North America to understand its evolutionary history and the distribution of clades to inform conservation of R. pretiosa and GreAuthorsW.C. Funk, C.A. Pearl, H.M. Draheim, M.J. Adams, T.D. Mullins, S. M. HaigOccurrence of Batrachochytrium dendrobatidis in amphibian populations in Denmark
[No abstract available]AuthorsR. Scalera, M.J. Adams, S.K. GalvanDemography and movement in a relocated population of Oregon Spotted Frogs (Rana pretiosa): Influence of season and gender
We used five years of recapture data and Bayesian estimation to assess seasonal survival, movement, and growth of Oregon Spotted Frogs (Rana pretiosa) relocated into created ponds at Dilman Meadow in Oregon, USA. We evaluate hypotheses specific to the relocation and elucidate aspects of R. pretiosa life history that are poorly known. The odds of survival of relocated individuals during the first yAuthorsN.D. Chelgren, C.A. Pearl, M.J. Adams, J. BowermanBatrachochytrium dendrobatidis in Amphibian populations in Italy
[No abstract available]AuthorsM.J. Adams, S. Galvan, R. Scalera, C. Grieco, R. SindacoCharacteristics of Columbia spotted frog (Rana luteiventris) oviposition sites in northeastern Oregon, USA
Several western ranid frogs possess a unique strategy of breeding communally over a short temporal window and reusing oviposition sites between years. However, little is published on the characteristics of oviposition sites selected by these explosive breeders. The Columbia spotted frog (Rana luteiventris) is native to northwestern North America and is of conservation concern in the southern portiAuthorsChristopher A. Pearl, M. J. Adams, Wendy WenteIncidence of the fungus Batrachochytrium dendrobatidis in amphibian populations along the northwest coast of North America
No abstract available.AuthorsM.J. Adams, S. Galvan, D. Reinitz, Rebecca A. Cole, Sanjay Pyare, M. Hahr, P. GovindarajuluOccurrence of the amphibian pathogen Batrachochytrium dendrobatidis in the Pacific Northwest
Chytridiomycosis (infection by the fungus Batrachochytrium dendrobatidis) has been associated with amphibian declines in at least four continents. We report results of disease screens from 210 pond-breeding amphibians from 37 field sites in Oregon and Washington. We detected B. dendrobatidis on 28% of sampled amphibians, and we found ??? 1 detection of B. dendrobatidis from 43% of sites. Four of sAuthorsC.A. Pearl, E. L. Bull, D. E. Green, J. Bowerman, M.J. Adams, A. Hyatt, W.H. WenteOccurrence of the amphibian pathogen Batrachochytrium dendrobatidis in Pacific Northwestern USA
Chytridiomycosis (infection by the fungus Batrachochytrium dendrobatidis) has been associated with amphibian declines in at least four continents. We report results of disease screens from 210 pond-breeding amphibians from 37 field sites in Oregon and Washington. We detected B. dendrobatidis on 28% of sampled amphibians, and and we found -> 1 detection of B. dendrobatidis from 43% of sites. Four oAuthorsChristopher A. Pearl, E. L. Bull, D. E. Green, Jay Bowerman, M. J. Adams, A. Hyatt, W. WenteNon-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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To request an interview, contact fresc_outreach@usgs.gov or call (541) 750-1030.
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