R. Bruce Bury
I am a Scientist Emeritus at the USGS Forest and Rangeland Ecosystem Science Center. My research focuses on amphibians and reptiles.
My research interests include ecology of aquatic and forest ecosystems, conservation biology of amphibians and reptiles, the effects of perturbations on animal populations, biological invasions, and inventorying and monitoring.
Education and Certifications
Ph.D. Zoology from University of California-Berkeley
MSc. Life Sciences from Calif. State Univ.-Sacramento
BSc. Biology from Humboldt State University
Science and Products
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: 52
Terrestrial and stream amphibians across clearcut-forest interfaces in the Siskiyou Mountains, Oregon Terrestrial and stream amphibians across clearcut-forest interfaces in the Siskiyou Mountains, Oregon
Timber harvest in the Pacific Northwest has resulted in a highly fragmented landscape. but there is no information on responses of amphibians to forest edges for this region. We investigated abundance of terrestrial and stream-dwelling amphibians on the interface of recent clearcuts and mature forest in the Siskiyou Mountains, Oregon, in summer and fall of 1998. We assessed relative...
Authors
Roman Biek, L. Mills, R. Bury
Comparison of desert tortoise (Gopherus agassizii) populations in an unused and off-road vehicle area in the Mojave Desert Comparison of desert tortoise (Gopherus agassizii) populations in an unused and off-road vehicle area in the Mojave Desert
No abstract available.
Authors
R. Bury, R.A. Luckenbach
Optical characteristics of natural waters protect amphibians from UV-B in the U.S. Pacific Northwest Optical 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...
Authors
Wendy Palen, David Schindler, M. Adams, Christopher A. Pearl, R. Bury, S. Diamond
Ascaphus trueii (Tailed frog). Albinism Ascaphus trueii (Tailed frog). Albinism
No abstract available.
Authors
Christopher A. Pearl, D.J. Major, R. Bury
Association of amphibians with attenuation of ultraviolet-b radiation in montane ponds Association 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...
Authors
M. Adams, Daniel Schindler, R. Bury
Clutch sizes and nests of tailed frogs from the Olympic Peninsula, Washington Clutch sizes and nests of tailed frogs from the Olympic Peninsula, Washington
In the summers 1995-1998, we sampled 168 streams (1,714 in of randomly selected 1-m bands) to determine distribution and abundance of stream amphibians in Olympic National Park, Washington. We found six nests (two in one stream) of the tailed frog, compared to only two nests with clutch sizes reported earlier for coastal regions. This represents only one nest per 286 in searched and one...
Authors
R. Bury, P. Loafman, D. Rofkar, K. Mike
Western pond turtles (Clemmys marmorata) in the central valley of California: Status and population structure Western pond turtles (Clemmys marmorata) in the central valley of California: Status and population structure
A sensitive resettable odometer reading to 0.01 mile facilitated censusing breeding male redwinged blackbirds (Agelaius phoeniceus) from a vehicle. Territorial males along roadsides were 'marked' with recorded mileage readings rather than with landmarks of the types employed by Hewitt for censuses based on the Lincoln index principle. Sensitive odometers that can be reset have many...
Authors
David Germano, R. Bury
Response of juvenile softshell turtles (Apalone mutica) in a thermal gradient Response of juvenile softshell turtles (Apalone mutica) in a thermal gradient
No abstract available.
Authors
A.V. Nebeker, R. Bury
Response of hatchling and yearling turtles to thermal gradients: Comparison of Chelydra serpentina and Trachemys scripta Response of hatchling and yearling turtles to thermal gradients: Comparison of Chelydra serpentina and Trachemys scripta
In laboratory tests, young Chelydra serpentina and Trachemys scripta altered their distribution in the presence of a temperature gradient. Selection of temperatures in the gradient for hatchlings and yearlings showed that body temperatures (Tbs) of C. serpentina were lower than T. scripta, but the difference was insignificant. Relatively low Tbs could allow greater activity range and...
Authors
R. Bury, A.B. Nebeker, M. Adams
Growth and demographics of a population of Emydoidea blandingii from western Nebraska Growth and demographics of a population of Emydoidea blandingii from western Nebraska
No abstract available.
Authors
David Germano, R. Bury
Klamath-Siskiyou herpetofauna: Biogeographic patterns and conservation strategies Klamath-Siskiyou herpetofauna: Biogeographic patterns and conservation strategies
The Klamath-Siskiyou region of southwest Oregon and northwest California (USA) has some of the most complex landscape mosaics and plant communities in western North America, reflecting its marked diversity of precipitation and topography. With 38 native species of amphibians and reptiles, the Klamath-Siskiyou region has the most species-rich herpetofauna of any similarly sized mountain...
Authors
R. Bury, Christopher Pearl
Variation in age at metamorphosis across a latitudinal gradient for the tailed frog, Ascaphus truei Variation in age at metamorphosis across a latitudinal gradient for the tailed frog, Ascaphus truei
Tailed frogs (Ascaphus truei) occur in permanent, cold streams in northwestern North America. Their tadpoles reportedly undergo metamorphosis after 2-4 years. Coastal populations that we examined transformed in 2 yr from the Olympic peninsula in Washington to northern Oregon, but in 1 yr from central Oregon to northern California. One inland site in northern California had a 2-yr period...
Authors
R. Bury, M. Adams
Science and Products
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: 52
Terrestrial and stream amphibians across clearcut-forest interfaces in the Siskiyou Mountains, Oregon Terrestrial and stream amphibians across clearcut-forest interfaces in the Siskiyou Mountains, Oregon
Timber harvest in the Pacific Northwest has resulted in a highly fragmented landscape. but there is no information on responses of amphibians to forest edges for this region. We investigated abundance of terrestrial and stream-dwelling amphibians on the interface of recent clearcuts and mature forest in the Siskiyou Mountains, Oregon, in summer and fall of 1998. We assessed relative...
Authors
Roman Biek, L. Mills, R. Bury
Comparison of desert tortoise (Gopherus agassizii) populations in an unused and off-road vehicle area in the Mojave Desert Comparison of desert tortoise (Gopherus agassizii) populations in an unused and off-road vehicle area in the Mojave Desert
No abstract available.
Authors
R. Bury, R.A. Luckenbach
Optical characteristics of natural waters protect amphibians from UV-B in the U.S. Pacific Northwest Optical 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...
Authors
Wendy Palen, David Schindler, M. Adams, Christopher A. Pearl, R. Bury, S. Diamond
Ascaphus trueii (Tailed frog). Albinism Ascaphus trueii (Tailed frog). Albinism
No abstract available.
Authors
Christopher A. Pearl, D.J. Major, R. Bury
Association of amphibians with attenuation of ultraviolet-b radiation in montane ponds Association 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...
Authors
M. Adams, Daniel Schindler, R. Bury
Clutch sizes and nests of tailed frogs from the Olympic Peninsula, Washington Clutch sizes and nests of tailed frogs from the Olympic Peninsula, Washington
In the summers 1995-1998, we sampled 168 streams (1,714 in of randomly selected 1-m bands) to determine distribution and abundance of stream amphibians in Olympic National Park, Washington. We found six nests (two in one stream) of the tailed frog, compared to only two nests with clutch sizes reported earlier for coastal regions. This represents only one nest per 286 in searched and one...
Authors
R. Bury, P. Loafman, D. Rofkar, K. Mike
Western pond turtles (Clemmys marmorata) in the central valley of California: Status and population structure Western pond turtles (Clemmys marmorata) in the central valley of California: Status and population structure
A sensitive resettable odometer reading to 0.01 mile facilitated censusing breeding male redwinged blackbirds (Agelaius phoeniceus) from a vehicle. Territorial males along roadsides were 'marked' with recorded mileage readings rather than with landmarks of the types employed by Hewitt for censuses based on the Lincoln index principle. Sensitive odometers that can be reset have many...
Authors
David Germano, R. Bury
Response of juvenile softshell turtles (Apalone mutica) in a thermal gradient Response of juvenile softshell turtles (Apalone mutica) in a thermal gradient
No abstract available.
Authors
A.V. Nebeker, R. Bury
Response of hatchling and yearling turtles to thermal gradients: Comparison of Chelydra serpentina and Trachemys scripta Response of hatchling and yearling turtles to thermal gradients: Comparison of Chelydra serpentina and Trachemys scripta
In laboratory tests, young Chelydra serpentina and Trachemys scripta altered their distribution in the presence of a temperature gradient. Selection of temperatures in the gradient for hatchlings and yearlings showed that body temperatures (Tbs) of C. serpentina were lower than T. scripta, but the difference was insignificant. Relatively low Tbs could allow greater activity range and...
Authors
R. Bury, A.B. Nebeker, M. Adams
Growth and demographics of a population of Emydoidea blandingii from western Nebraska Growth and demographics of a population of Emydoidea blandingii from western Nebraska
No abstract available.
Authors
David Germano, R. Bury
Klamath-Siskiyou herpetofauna: Biogeographic patterns and conservation strategies Klamath-Siskiyou herpetofauna: Biogeographic patterns and conservation strategies
The Klamath-Siskiyou region of southwest Oregon and northwest California (USA) has some of the most complex landscape mosaics and plant communities in western North America, reflecting its marked diversity of precipitation and topography. With 38 native species of amphibians and reptiles, the Klamath-Siskiyou region has the most species-rich herpetofauna of any similarly sized mountain...
Authors
R. Bury, Christopher Pearl
Variation in age at metamorphosis across a latitudinal gradient for the tailed frog, Ascaphus truei Variation in age at metamorphosis across a latitudinal gradient for the tailed frog, Ascaphus truei
Tailed frogs (Ascaphus truei) occur in permanent, cold streams in northwestern North America. Their tadpoles reportedly undergo metamorphosis after 2-4 years. Coastal populations that we examined transformed in 2 yr from the Olympic peninsula in Washington to northern Oregon, but in 1 yr from central Oregon to northern California. One inland site in northern California had a 2-yr period...
Authors
R. Bury, M. Adams