USGS research into environmental stressors (e.g., climate, drought, floods, wildland fire) and anthropogenic stressors (e.g., energy production, urban encroachment, water abatement) provides managers with information to reduce or eliminate impacts from stressors to fish and wildlife populations and advances our understanding of the efficacy of conservation and adaptation actions to mitigate land-use and climate change impacts on sensitive species.
Terrestrial Mammal Research
Terrestrial Mammal Research
Filter Total Items: 57
No results found.
Recent data related to USGS terrestrial mammal research are listed below. A broader listing of USGS mammal-related data is available from the button below. To see USGS resources about a specific species, use the search box in the blue page header on the top right corner of the page.
Filter Total Items: 41
No Result Found
Recent publications (2020-2022) related to USGS terrestrial mammal research are listed below. A listing of USGS mammal-related publications is available from the button below. To see publications about a specific species, use the search box in the blue page header.
Filter Total Items: 106
Quantifying energetic costs and defining energy landscapes experienced by grizzly bears Quantifying energetic costs and defining energy landscapes experienced by grizzly bears
Animal movements are major determinants of energy expenditure and ultimately the cost–benefit of landscape use. Thus, we sought to understand those costs and how grizzly bears (Ursus arctos) move in mountainous landscapes. We trained captive grizzly bears to walk on a horizontal treadmill and up and down 10% and 20% slopes. The cost of moving upslope increased linearly with speed and...
Authors
Anthony M. Carnahan, Frank T. van Manen, Mark A. Haroldson, Gordon Stenhouse, Charles T. Robbins
Mammal species composition and habitat associations in a commercial forest and mixed-plantation landscape Mammal species composition and habitat associations in a commercial forest and mixed-plantation landscape
Commercial forest plantations of fast-growing species have been established globally to meet increasing demands for timber, pulpwood, and other wood products. Industrial plantations may contribute to tropical forest conservation by reducing exploitation of primary and secondary natural forests. Whether such plantations can support critical elements of biodiversity, including provision of...
Authors
Wai Pak Ng, Frank T. van Manen, Stuart P. Sharp, Siew Te Wong, Shyamala Ratnayeke
Sarcoptic mange: An emerging panzootic in wildlife Sarcoptic mange: An emerging panzootic in wildlife
Sarcoptic mange, a skin infestation caused by the mite Sarcoptes scabiei, is an emerging disease for some species of wildlife, potentially jeopardizing their welfare and conservation. Sarcoptes scabiei has a near-global distribution facilitated by its forms of transmission and use of a large diversity of host species (many of those with broad geographic distribution). In this review, we...
Authors
L. E. Escobar, Scott Carver, Paul C. Cross, Luca Rossi, E. S. Almberg, M. J. Yabsley, K D Niedringhaus, Peach Van Wick, Ernesto Dominguez-Villegas, F.F. Gakuya, Yue Xie, Samer Angelone, Christian Gortazar, Francisca Astorga
Whole‐genome resequencing reveals persistence of forest‐associated mammals in Late Pleistocene refugia along North America’s North Pacific Coast Whole‐genome resequencing reveals persistence of forest‐associated mammals in Late Pleistocene refugia along North America’s North Pacific Coast
Aim Numerous glacial refugia have been hypothesized along North America's North Pacific Coast that may have increased divergence of refugial taxa, leading to elevated endemism and subsequently clustered hybrid zones following deglaciation. The locations and community composition of these ice‐free areas remains controversial, but whole‐genome sequences now enable detailed analysis of the...
Authors
Jocelyn P. Colella, Tianying Lan, Sandra L. Talbot, Charlotte Lindqvist, Joseph A. Cook
The smell of success: Reproductive success related to rub behavior in brown bears The smell of success: Reproductive success related to rub behavior in brown bears
Several species of bears are known to rub deliberately against trees and other objects, but little is known about why bears rub. Patterns in rubbing behavior of male and female brown bears (Ursus arctos) suggest that scent marking via rubbing functions to communicate among potential mates or competitors. Using DNA from bear hairs collected from rub objects in southwestern Alberta from...
Authors
Andrea T. Morehouse, Anne E. Loosen, Tabitha A. Graves, Mark S. Boyce
Effects of experimental flea removal and plague vaccine treatments on survival of northern Idaho ground squirrels and two coexisting sciurids Effects of experimental flea removal and plague vaccine treatments on survival of northern Idaho ground squirrels and two coexisting sciurids
Plague is a non-native disease in North America that reduces survival of many mammals. Previous studies have focused on epizootic plague which causes acute mortality events and dramatic declines in local abundance. We know much less about enzootic plague which causes less punctuated reductions in survival and abundance of infected populations. As a result, enzootic plague is much more...
Authors
Amanda R. Goldberg, Courtney J. Conway, Dean E. Biggins
Patterns and processes of pathogen exposure in gray wolves across North America Patterns and processes of pathogen exposure in gray wolves across North America
The presence of many pathogens varies in a predictable manner with latitude, with infections decreasing from the equator towards the poles. We investigated the geographic trends of pathogens infecting a widely distributed carnivore: the gray wolf (Canis lupus). Specifically, we investigated which variables best explain and predict geographic trends in seroprevalence across North American...
Authors
E. E. Brandell, Paul C. Cross, Meggan E. Craft, Douglas W. Smith, E. J. Dubovi, Marie L. J. Gilbertson, Tyler Wheeldon, John A. Stephenson, Shannon Barber-Meyer, B. L. Borg, Mathew Sorum, Daniel R. Stahler, Allicia P Kelly, Morgan Anderson, H. D. Cluff, Daniel R. MacNulty, David L. Watts, G. Roffler, Helen M. Schwantje, Mark Hebblewhite, K. Beckman, P. J. Hudson
American Black Bear (Ursus americanus) American Black Bear (Ursus americanus)
American black bears (Ursus americanus) are endemic to North America, having speciated from other ursids some 1.2 to 1.8 million years ago (Kurtn & Anderson 1994). During that time, black bears came to occupy nearly all of the forested areas of the North American continent. Historically, black bears were one of the most important mammals to indigenous peoples of North America by...
Authors
Joseph D. Clark, Jon P. Beckmann, Mark S. Boyce, Bruce D Leopold, Michael R. Pelton
Why Lyme disease is common in the northern US, but rare in the south: The roles of host choice, host-seeking behavior, and tick density Why Lyme disease is common in the northern US, but rare in the south: The roles of host choice, host-seeking behavior, and tick density
Lyme disease is common in the northeastern United States, but rare in the southeast, even though the tick vector is found in both regions. Infection prevalence of Lyme spirochetes in host-seeking ticks, an important component to the risk of Lyme disease, is also high in the northeast and northern midwest, but declines sharply in the south. As ticks must acquire Lyme spirochetes from...
Authors
Howard Ginsberg, Graham J. Hickling, Russell L. Burke, Nicholas H. Ogden, Lorenza Beati, Roger A. LeBrun, Isis M. Arsnoe, Rick Gerhold, Seungeun Han, Kaetlyn Jackson, Lauren Maestas, Teresa Moody, Genevieve Pang, Breann Ross, Eric L. Rulison, Jean I. Tsao
Human activities and weather drive contact rates of wintering elk Human activities and weather drive contact rates of wintering elk
Wildlife aggregation patterns can influence disease transmission. However, limited research evaluates the influence of anthropogenic and natural factors on aggregation. Many managers would like to reduce wildlife contact rates, driven by aggregation, to limit disease transmission. We develop a novel analytical framework to quantify how management activities such as supplemental feeding...
Authors
William Michael Janousek, Tabitha A. Graves, Ethan Berman, Geneva W. Chong, Eric K Cole, Sarah Dewey, Aaron N. Johnston, Paul C. Cross
A metapopulation model of social group dynamics and disease applied to Yellowstone wolves A metapopulation model of social group dynamics and disease applied to Yellowstone wolves
The population structure of social species has important consequences for both their demography and transmission of their pathogens. We develop a metapopulation model that tracks two key components of a species’ social system: average group size and number of groups within a population. While the model is general, we parameterize it to mimic the dynamics of the Yellowstone wolf...
Authors
Ellen E. Brandell, A P Dobson, Peter J. Hudson, Paul C. Cross, Douglas W. Smith
Thermal constraints on energy balance, behaviour and spatial distribution of grizzly bears Thermal constraints on energy balance, behaviour and spatial distribution of grizzly bears
1. Heat dissipation limit theory posits that energy available for growth and reproduction in endotherms is limited by their ability to dissipate heat. In mammals, endogenous heat production increases markedly during gestation and lactation, and thus female mammals may be subject to greater thermal constraints on energy expenditure than males. Such constraints likely have important...
Authors
Savannah A. Rogers, Charlie T. Robbins, Paul D. Mathewson, Anthony M. Carnahan, Frank T. van Manen, Mark A. Haroldson, Warren P. Porter, Taylor R. Rogers, Terrence Soule, Ryan A. Long
See what's new!
USGS research into environmental stressors (e.g., climate, drought, floods, wildland fire) and anthropogenic stressors (e.g., energy production, urban encroachment, water abatement) provides managers with information to reduce or eliminate impacts from stressors to fish and wildlife populations and advances our understanding of the efficacy of conservation and adaptation actions to mitigate land-use and climate change impacts on sensitive species.
Terrestrial Mammal Research
Terrestrial Mammal Research
Filter Total Items: 57
No results found.
Recent data related to USGS terrestrial mammal research are listed below. A broader listing of USGS mammal-related data is available from the button below. To see USGS resources about a specific species, use the search box in the blue page header on the top right corner of the page.
Filter Total Items: 41
No Result Found
Recent publications (2020-2022) related to USGS terrestrial mammal research are listed below. A listing of USGS mammal-related publications is available from the button below. To see publications about a specific species, use the search box in the blue page header.
Filter Total Items: 106
Quantifying energetic costs and defining energy landscapes experienced by grizzly bears Quantifying energetic costs and defining energy landscapes experienced by grizzly bears
Animal movements are major determinants of energy expenditure and ultimately the cost–benefit of landscape use. Thus, we sought to understand those costs and how grizzly bears (Ursus arctos) move in mountainous landscapes. We trained captive grizzly bears to walk on a horizontal treadmill and up and down 10% and 20% slopes. The cost of moving upslope increased linearly with speed and...
Authors
Anthony M. Carnahan, Frank T. van Manen, Mark A. Haroldson, Gordon Stenhouse, Charles T. Robbins
Mammal species composition and habitat associations in a commercial forest and mixed-plantation landscape Mammal species composition and habitat associations in a commercial forest and mixed-plantation landscape
Commercial forest plantations of fast-growing species have been established globally to meet increasing demands for timber, pulpwood, and other wood products. Industrial plantations may contribute to tropical forest conservation by reducing exploitation of primary and secondary natural forests. Whether such plantations can support critical elements of biodiversity, including provision of...
Authors
Wai Pak Ng, Frank T. van Manen, Stuart P. Sharp, Siew Te Wong, Shyamala Ratnayeke
Sarcoptic mange: An emerging panzootic in wildlife Sarcoptic mange: An emerging panzootic in wildlife
Sarcoptic mange, a skin infestation caused by the mite Sarcoptes scabiei, is an emerging disease for some species of wildlife, potentially jeopardizing their welfare and conservation. Sarcoptes scabiei has a near-global distribution facilitated by its forms of transmission and use of a large diversity of host species (many of those with broad geographic distribution). In this review, we...
Authors
L. E. Escobar, Scott Carver, Paul C. Cross, Luca Rossi, E. S. Almberg, M. J. Yabsley, K D Niedringhaus, Peach Van Wick, Ernesto Dominguez-Villegas, F.F. Gakuya, Yue Xie, Samer Angelone, Christian Gortazar, Francisca Astorga
Whole‐genome resequencing reveals persistence of forest‐associated mammals in Late Pleistocene refugia along North America’s North Pacific Coast Whole‐genome resequencing reveals persistence of forest‐associated mammals in Late Pleistocene refugia along North America’s North Pacific Coast
Aim Numerous glacial refugia have been hypothesized along North America's North Pacific Coast that may have increased divergence of refugial taxa, leading to elevated endemism and subsequently clustered hybrid zones following deglaciation. The locations and community composition of these ice‐free areas remains controversial, but whole‐genome sequences now enable detailed analysis of the...
Authors
Jocelyn P. Colella, Tianying Lan, Sandra L. Talbot, Charlotte Lindqvist, Joseph A. Cook
The smell of success: Reproductive success related to rub behavior in brown bears The smell of success: Reproductive success related to rub behavior in brown bears
Several species of bears are known to rub deliberately against trees and other objects, but little is known about why bears rub. Patterns in rubbing behavior of male and female brown bears (Ursus arctos) suggest that scent marking via rubbing functions to communicate among potential mates or competitors. Using DNA from bear hairs collected from rub objects in southwestern Alberta from...
Authors
Andrea T. Morehouse, Anne E. Loosen, Tabitha A. Graves, Mark S. Boyce
Effects of experimental flea removal and plague vaccine treatments on survival of northern Idaho ground squirrels and two coexisting sciurids Effects of experimental flea removal and plague vaccine treatments on survival of northern Idaho ground squirrels and two coexisting sciurids
Plague is a non-native disease in North America that reduces survival of many mammals. Previous studies have focused on epizootic plague which causes acute mortality events and dramatic declines in local abundance. We know much less about enzootic plague which causes less punctuated reductions in survival and abundance of infected populations. As a result, enzootic plague is much more...
Authors
Amanda R. Goldberg, Courtney J. Conway, Dean E. Biggins
Patterns and processes of pathogen exposure in gray wolves across North America Patterns and processes of pathogen exposure in gray wolves across North America
The presence of many pathogens varies in a predictable manner with latitude, with infections decreasing from the equator towards the poles. We investigated the geographic trends of pathogens infecting a widely distributed carnivore: the gray wolf (Canis lupus). Specifically, we investigated which variables best explain and predict geographic trends in seroprevalence across North American...
Authors
E. E. Brandell, Paul C. Cross, Meggan E. Craft, Douglas W. Smith, E. J. Dubovi, Marie L. J. Gilbertson, Tyler Wheeldon, John A. Stephenson, Shannon Barber-Meyer, B. L. Borg, Mathew Sorum, Daniel R. Stahler, Allicia P Kelly, Morgan Anderson, H. D. Cluff, Daniel R. MacNulty, David L. Watts, G. Roffler, Helen M. Schwantje, Mark Hebblewhite, K. Beckman, P. J. Hudson
American Black Bear (Ursus americanus) American Black Bear (Ursus americanus)
American black bears (Ursus americanus) are endemic to North America, having speciated from other ursids some 1.2 to 1.8 million years ago (Kurtn & Anderson 1994). During that time, black bears came to occupy nearly all of the forested areas of the North American continent. Historically, black bears were one of the most important mammals to indigenous peoples of North America by...
Authors
Joseph D. Clark, Jon P. Beckmann, Mark S. Boyce, Bruce D Leopold, Michael R. Pelton
Why Lyme disease is common in the northern US, but rare in the south: The roles of host choice, host-seeking behavior, and tick density Why Lyme disease is common in the northern US, but rare in the south: The roles of host choice, host-seeking behavior, and tick density
Lyme disease is common in the northeastern United States, but rare in the southeast, even though the tick vector is found in both regions. Infection prevalence of Lyme spirochetes in host-seeking ticks, an important component to the risk of Lyme disease, is also high in the northeast and northern midwest, but declines sharply in the south. As ticks must acquire Lyme spirochetes from...
Authors
Howard Ginsberg, Graham J. Hickling, Russell L. Burke, Nicholas H. Ogden, Lorenza Beati, Roger A. LeBrun, Isis M. Arsnoe, Rick Gerhold, Seungeun Han, Kaetlyn Jackson, Lauren Maestas, Teresa Moody, Genevieve Pang, Breann Ross, Eric L. Rulison, Jean I. Tsao
Human activities and weather drive contact rates of wintering elk Human activities and weather drive contact rates of wintering elk
Wildlife aggregation patterns can influence disease transmission. However, limited research evaluates the influence of anthropogenic and natural factors on aggregation. Many managers would like to reduce wildlife contact rates, driven by aggregation, to limit disease transmission. We develop a novel analytical framework to quantify how management activities such as supplemental feeding...
Authors
William Michael Janousek, Tabitha A. Graves, Ethan Berman, Geneva W. Chong, Eric K Cole, Sarah Dewey, Aaron N. Johnston, Paul C. Cross
A metapopulation model of social group dynamics and disease applied to Yellowstone wolves A metapopulation model of social group dynamics and disease applied to Yellowstone wolves
The population structure of social species has important consequences for both their demography and transmission of their pathogens. We develop a metapopulation model that tracks two key components of a species’ social system: average group size and number of groups within a population. While the model is general, we parameterize it to mimic the dynamics of the Yellowstone wolf...
Authors
Ellen E. Brandell, A P Dobson, Peter J. Hudson, Paul C. Cross, Douglas W. Smith
Thermal constraints on energy balance, behaviour and spatial distribution of grizzly bears Thermal constraints on energy balance, behaviour and spatial distribution of grizzly bears
1. Heat dissipation limit theory posits that energy available for growth and reproduction in endotherms is limited by their ability to dissipate heat. In mammals, endogenous heat production increases markedly during gestation and lactation, and thus female mammals may be subject to greater thermal constraints on energy expenditure than males. Such constraints likely have important...
Authors
Savannah A. Rogers, Charlie T. Robbins, Paul D. Mathewson, Anthony M. Carnahan, Frank T. van Manen, Mark A. Haroldson, Warren P. Porter, Taylor R. Rogers, Terrence Soule, Ryan A. Long
See what's new!