Patrick M Kleeman
Patrick Kleeman is a Supervisory Ecologist at the Western Ecological Research Center.
Patrick Kleeman's research focuses on the ecology and conservation biology of amphibians. Topics of study within these categories include population demography through capture-mark-recapture methods, habitat use by using radiotelemetry, and phenology of breeding as evidenced by vocalizations. His research also examines what role stressors such as environmental contaminants, disease, and climate may have on amphibian populations. In addition to amphibians, he also works with island night lizards (Xantusia riversiana) on San Nicolas Island and Townsend's big-eared bats (Corynorhinus townsendii) at Point Reyes National Seashore.
EDUCATION
- B.A. in Biology, University of Colorado, Boulder, 1988
- M.S. in Wildlife Management, Humboldt State University, 1999
Science and Products
Filter Total Items: 23
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Occurrence of amphibians in northern California coastal dune drainages
Many coastal dune ecosystems have been degraded by non-native dune vegetation, but these systems might still provide valuable habitat for some taxa, including amphibians. Because restoration of degraded dune systems is occurring and likely to continue, we examined the occurrence of amphibians in drainages associated with a coastal dune ecosystem degraded by invasive plants (European Beachgrass, Am
Authors
Brian J. Halstead, Patrick M. Kleeman
Frogs on the beach: Ecology of California Red-legged Frogs (Rana draytonii) in coastal dune drainages
California Red-legged Frogs (Rana draytonii) are typically regarded as inhabitants of permanent ponds, marshes, and slow-moving streams, but their ecology in other habitats, such as drainages among coastal dunes, remains obscure. Because coastal dune ecosystems have been degraded by development, off-highway vehicle use, stabilization, and invasive species, these unique ecosystems are the focus of
Authors
Brian J. Halstead, Patrick M. Kleeman
Large-scale recovery of an endangered amphibian despite ongoing exposure to multiple stressors
Amphibians are one of the most threatened animal groups, with 32% of species at risk for extinction. Given this imperiled status, is the disappearance of a large fraction of the Earth’s amphibians inevitable, or are some declining species more resilient than is generally assumed? We address this question in a species that is emblematic of many declining amphibians, the endangered Sierra Nevada yel
Authors
Roland A. Knapp, Gary M. Fellers, Patrick M. Kleeman, David A. W. Miller, Vance T. Vrendenburg, Erica Bree Rosenblum, Cheryl J. Briggs
Wetland occupancy of pond-breeding amphibians in Yosemite National Park, USA
We estimated wetland occupancy and population trends for three species of pond-breeding anurans in Yosemite National Park from 2007-2011. We used a double survey technique in which two observers independently surveyed each site on the same day. Double surveys allowed us to calculate detectability for the three most common anurans within the park: Rana sierrae, Anaxyrus canorus, and Pseudacris regi
Authors
Gary M. Fellers, Patrick M. Kleeman, David A.W. Miller
Biodemography of ectothermic tetrapods provides insights into the evolution and plasticity of mortality patterns
No abstract available.
Authors
David A. W. Miller, Fredric J. Janzen, Gary M. Fellers, Patrick M. Kleeman, Anne M. Bronikowski
Pesticides in amphibian habitats of Central and Northern California, USA
Previous studies have indicated that toxicity from pesticide exposure may be contributing to amphibian declines in California and that atmospheric deposition could be a primary pathway for pesticides to enter amphibian habitats. We report on a survey of California wetlands sampled along transects associated with Lassen Volcanic National Park, Lake Tahoe, Yosemite National Park, and Sequoia Nationa
Authors
Gary M. Fellers, W Sparling, Laura McConnell, Patrick M. Kleeman, Leticia Drakeford
A network extension of species occupancy models in a patchy environment applied to the Yosemite toad (Anaxyrus canorus)
A central challenge of conservation biology is using limited data to predict rare species occurrence and identify conservation areas that play a disproportionate role in regional persistence. Where species occupy discrete patches in a landscape, such predictions require data about environmental quality of individual patches and the connectivity among high quality patches. We present a novel extens
Authors
Eric L. Berlow, Roland A. Knapp, Steven M. Ostoja, Richard J. Williams, Heather McKenny, John R. Matchett, Qinghau Guo, Gary M. Fellers, Patrick Kleeman, Matthew L. Brooks, Lucas Joppa
Accumulation of pesticides in pacific chorus frogs (Pseudacris regilla) from California's Sierra Nevada Mountains, USA
Pesticides are receiving increasing attention as potential causes of amphibian declines, acting singly or in combination with other stressors, but limited information is available on the accumulation of current-use pesticides in tissue. The authors examined potential exposure and accumulation of currently used pesticides in pond-breeding frogs (Pseudacris regilla) collected from 7 high elevations
Authors
Kelly L. Smalling, Gary M. Fellers, Patrick M. Kleeman, Kathryn Kuivila
Expression analysis and identification of antimicrobial peptide transcripts from six North American frog species
Frogs secrete antimicrobial peptides onto their skin. We describe an assay to preserve and analyze antimicrobial peptide transcripts from field-collected skin secretions that will complement existing methods for peptide analysis. We collected skin secretions from 4 North American species in the field in California and 2 species in the laboratory. Most frogs appeared healthy after release; however,
Authors
Laura S. Robertson, Gary M. Fellers, Jamie Marie Marranca, Patrick M. Kleeman
Population size, survival, growth, and movements of Rana sierrae
Based on 2431 captures of 757 individual frogs over a 9-yr period, we found that the population of R. sierrae in one meadow–stream complex in Yosemite National Park ranged from an estimated 45 to 115 adult frogs. Rana sierrae at our relatively low elevation site (2200 m) grew at a fast rate (K = 0.73–0.78), had high overwintering survival rates (44.6–95%), lived a long time (up to 16 yr), and tend
Authors
Gary M. Fellers, Patrick M. Kleeman, David A. W. Miller, Brian J. Halstead, William A. Link
Amphibian chytrid fungus (Batrachochytrium dendrobatidis) in coastal and montane California, USA Anurans
We found amphibian chytrid fungus (Bd = Batrachochytrium dendrobatidis) to be widespread within a coastalwatershed at Point Reyes National Seashore, California and within two high elevation watersheds at Yosemite NationalPark, California. Bd was associated with all six species that we sampled (Bufo boreas, B. canorus, Pseudacris regilla, Ranadraytonii, R. sierrae, and Lithobates catesbeianus). For
Authors
Gary M. Fellers, Rebecca A. Cole, David M. Reinitz, Patrick M. Kleeman
California red-legged frog (Rana draytonii) movement and habitat use: Implications for conservation
Nonbreeding habitats are critically important for Rana draytonii, especially for individuals that breed in temporary bodies of water. We radiotracked 123 frogs to evaluate seasonal habitat use. Individual frogs were continuously tracked for up to 16 months. Some individuals remained at breeding ponds all year, but 66% of female and 25% of male frogs moved to nonbreeding areas, even when the breedi
Authors
G. M. Fellers, P.M. Kleeman
Science and Products
Filter Total Items: 23
No Result Found
Filter Total Items: 40
Occurrence of amphibians in northern California coastal dune drainages
Many coastal dune ecosystems have been degraded by non-native dune vegetation, but these systems might still provide valuable habitat for some taxa, including amphibians. Because restoration of degraded dune systems is occurring and likely to continue, we examined the occurrence of amphibians in drainages associated with a coastal dune ecosystem degraded by invasive plants (European Beachgrass, Am
Authors
Brian J. Halstead, Patrick M. Kleeman
Frogs on the beach: Ecology of California Red-legged Frogs (Rana draytonii) in coastal dune drainages
California Red-legged Frogs (Rana draytonii) are typically regarded as inhabitants of permanent ponds, marshes, and slow-moving streams, but their ecology in other habitats, such as drainages among coastal dunes, remains obscure. Because coastal dune ecosystems have been degraded by development, off-highway vehicle use, stabilization, and invasive species, these unique ecosystems are the focus of
Authors
Brian J. Halstead, Patrick M. Kleeman
Large-scale recovery of an endangered amphibian despite ongoing exposure to multiple stressors
Amphibians are one of the most threatened animal groups, with 32% of species at risk for extinction. Given this imperiled status, is the disappearance of a large fraction of the Earth’s amphibians inevitable, or are some declining species more resilient than is generally assumed? We address this question in a species that is emblematic of many declining amphibians, the endangered Sierra Nevada yel
Authors
Roland A. Knapp, Gary M. Fellers, Patrick M. Kleeman, David A. W. Miller, Vance T. Vrendenburg, Erica Bree Rosenblum, Cheryl J. Briggs
Wetland occupancy of pond-breeding amphibians in Yosemite National Park, USA
We estimated wetland occupancy and population trends for three species of pond-breeding anurans in Yosemite National Park from 2007-2011. We used a double survey technique in which two observers independently surveyed each site on the same day. Double surveys allowed us to calculate detectability for the three most common anurans within the park: Rana sierrae, Anaxyrus canorus, and Pseudacris regi
Authors
Gary M. Fellers, Patrick M. Kleeman, David A.W. Miller
Biodemography of ectothermic tetrapods provides insights into the evolution and plasticity of mortality patterns
No abstract available.
Authors
David A. W. Miller, Fredric J. Janzen, Gary M. Fellers, Patrick M. Kleeman, Anne M. Bronikowski
Pesticides in amphibian habitats of Central and Northern California, USA
Previous studies have indicated that toxicity from pesticide exposure may be contributing to amphibian declines in California and that atmospheric deposition could be a primary pathway for pesticides to enter amphibian habitats. We report on a survey of California wetlands sampled along transects associated with Lassen Volcanic National Park, Lake Tahoe, Yosemite National Park, and Sequoia Nationa
Authors
Gary M. Fellers, W Sparling, Laura McConnell, Patrick M. Kleeman, Leticia Drakeford
A network extension of species occupancy models in a patchy environment applied to the Yosemite toad (Anaxyrus canorus)
A central challenge of conservation biology is using limited data to predict rare species occurrence and identify conservation areas that play a disproportionate role in regional persistence. Where species occupy discrete patches in a landscape, such predictions require data about environmental quality of individual patches and the connectivity among high quality patches. We present a novel extens
Authors
Eric L. Berlow, Roland A. Knapp, Steven M. Ostoja, Richard J. Williams, Heather McKenny, John R. Matchett, Qinghau Guo, Gary M. Fellers, Patrick Kleeman, Matthew L. Brooks, Lucas Joppa
Accumulation of pesticides in pacific chorus frogs (Pseudacris regilla) from California's Sierra Nevada Mountains, USA
Pesticides are receiving increasing attention as potential causes of amphibian declines, acting singly or in combination with other stressors, but limited information is available on the accumulation of current-use pesticides in tissue. The authors examined potential exposure and accumulation of currently used pesticides in pond-breeding frogs (Pseudacris regilla) collected from 7 high elevations
Authors
Kelly L. Smalling, Gary M. Fellers, Patrick M. Kleeman, Kathryn Kuivila
Expression analysis and identification of antimicrobial peptide transcripts from six North American frog species
Frogs secrete antimicrobial peptides onto their skin. We describe an assay to preserve and analyze antimicrobial peptide transcripts from field-collected skin secretions that will complement existing methods for peptide analysis. We collected skin secretions from 4 North American species in the field in California and 2 species in the laboratory. Most frogs appeared healthy after release; however,
Authors
Laura S. Robertson, Gary M. Fellers, Jamie Marie Marranca, Patrick M. Kleeman
Population size, survival, growth, and movements of Rana sierrae
Based on 2431 captures of 757 individual frogs over a 9-yr period, we found that the population of R. sierrae in one meadow–stream complex in Yosemite National Park ranged from an estimated 45 to 115 adult frogs. Rana sierrae at our relatively low elevation site (2200 m) grew at a fast rate (K = 0.73–0.78), had high overwintering survival rates (44.6–95%), lived a long time (up to 16 yr), and tend
Authors
Gary M. Fellers, Patrick M. Kleeman, David A. W. Miller, Brian J. Halstead, William A. Link
Amphibian chytrid fungus (Batrachochytrium dendrobatidis) in coastal and montane California, USA Anurans
We found amphibian chytrid fungus (Bd = Batrachochytrium dendrobatidis) to be widespread within a coastalwatershed at Point Reyes National Seashore, California and within two high elevation watersheds at Yosemite NationalPark, California. Bd was associated with all six species that we sampled (Bufo boreas, B. canorus, Pseudacris regilla, Ranadraytonii, R. sierrae, and Lithobates catesbeianus). For
Authors
Gary M. Fellers, Rebecca A. Cole, David M. Reinitz, Patrick M. Kleeman
California red-legged frog (Rana draytonii) movement and habitat use: Implications for conservation
Nonbreeding habitats are critically important for Rana draytonii, especially for individuals that breed in temporary bodies of water. We radiotracked 123 frogs to evaluate seasonal habitat use. Individual frogs were continuously tracked for up to 16 months. Some individuals remained at breeding ponds all year, but 66% of female and 25% of male frogs moved to nonbreeding areas, even when the breedi
Authors
G. M. Fellers, P.M. Kleeman