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: 56
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
Maui Island, Hawaiian hoary bat behavior at wind turbines, 2018 Maui Island, Hawaiian hoary bat behavior at wind turbines, 2018
The Hawaiian hoary bat (Lasiurus cinereus semotus), a federally and state listed endangered subspecies, is the only extant native terrestrial mammal in the Hawaiian archipelago. It is an insectivorous, solitary and foliage-roosting species that generally roosts alone or in mother-pup family groups. This data release consists of three tabular datasets comprising acoustic and thermal video...
Bighorn sheep Ovine HD array genotypes from National Parks, 2004-2011 Bighorn sheep Ovine HD array genotypes from National Parks, 2004-2011
Between 2004 and 2011 bighorn sheep were darted in Glacier National Park and in Dinosaur National Monument. Blood was drawn. These are the genotypes resulting from an Ovine HD array from the bighorns. The first 3 columns refers to bighorn sheep identifiers: 'Herd_Unit', 'IndID', and 'AgencyID'. IndID is the identifier assigned at Montana State University. Subsequent columns each...
Hawaii Army National Guard Hawaiian Hoary Bat Acoustic Monitoring 2012-2018 and Keaukaha Military Reservation Prey Study 2018 Hawaii Army National Guard Hawaiian Hoary Bat Acoustic Monitoring 2012-2018 and Keaukaha Military Reservation Prey Study 2018
Acoustic sampling for occurrence of the endangered Hawaiian hoary bat (Lasiurus cinereus semotus) was conducted at 18 "long-term" acoustic monitoring stations on 12 Hawaii Army National Guard (HIARNG) installations across the islands of Hawaii, Maui, Molokai, Oahu, and Kauai between 2012 and 2018. Hawaiian hoary bat insect prey sampling with paired acoustic monitoring was conducted at...
Small mammal surveys from northern San Francisco Bay: 1998-2014 Small mammal surveys from northern San Francisco Bay: 1998-2014
This datasets summarizes small mammal trapping efforts that USGS San Francisco Bay Estuary Field Station has led, co-led, or supervised, to detect and monitor the endangered salt marsh harvest mouse (Reithrodontomys raviventris) in the northern reaches of San Francisco Bay from 1998-2014. As the salt marsh harvest mouse is listed as endangered under the Endangered Species Act, sensitive...
Trap records used to analyze trends in mammalian predator control trapping events intended to protect ground-nesting, endangered birds at Haleakal? National Park, Hawai'i (2000 - 2014) Trap records used to analyze trends in mammalian predator control trapping events intended to protect ground-nesting, endangered birds at Haleakal? National Park, Hawai'i (2000 - 2014)
Predation and habitat degradation by non-native species are principal terrestrial threats to the federally endangered Hawaiian Petrel ('ua'u, Pterodroma sandwichensis) and Hawaiian Goose (nene, Branta sandvicensis) within Haleakala National Park (HALE), Maui, Hawai'i. Since 1981, HALE has maintained a network of live-traps to control invasive mammalian predators and protect these...
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
The importance of wilderness to wolf (Canis lupus) survival and cause-specific mortality over 50 years The importance of wilderness to wolf (Canis lupus) survival and cause-specific mortality over 50 years
We assessed the relative importance of wilderness to gray wolf (Canis lupus) population dynamics over 50 years in a population that 1) was long extant (i.e., not reintroduced or recolonized), 2) was not subject to harvest in our study area until recently, and 3) used both wilderness and adjacent, mainly public, non-wilderness. We analyzed the survival of radiocollared wolves (n = 756...
Authors
Shannon Barber-Meyer, Tyler Wheeldon, L. David Mech
Spring phenology drives range shifts in a migratory Arctic ungulate with key implications for the future Spring phenology drives range shifts in a migratory Arctic ungulate with key implications for the future
Annual variation in phenology can have profound effects on the behavior of animals. As climate change advances spring phenology in ecosystems around the globe, it is becoming increasingly important to understand how animals respond to variation in the timing of seasonal events and how their responses may shift in the future. We investigated the influence of spring phenology on the...
Authors
John P. Severson, Heather E. Johnson, Stephen M. Arthur, William Leacock, Michael J. Suitor
Effects of elk and bison herbivory on narrowleaf cottonwood Effects of elk and bison herbivory on narrowleaf cottonwood
Ungulate browsing influences the structure and composition of woody plant communities, including species composition and biomass production as well as age distribution, recruitment, and mortality. We evaluated effects of elk and bison herbivory on narrowleaf cottonwood (Populus angustifolia) communities in a semiarid ecosystem in southern Colorado. Cottonwoods in this ecosystem have been...
Authors
Linda C. Zeigenfuss, Kathryn A. Schoenecker
Effects of elk and bison herbivory on narrowleaf cottonwood Effects of elk and bison herbivory on narrowleaf cottonwood
Ungulate browsing influences the structure and composition of woody plant communities, including species composition and biomass production as well as age distribution, recruitment, and mortality. We evaluated effects of elk and bison herbivory on narrowleaf cottonwood (Populus angustifolia) communities in a semiarid ecosystem in southern Colorado. Cottonwoods in this ecosystem have been...
Authors
Linda C. Zeigenfuss, Kathryn A. Schoenecker
Dynamic landscapes in northwestern North America structured populations of wolverines (Gulo gulo) Dynamic landscapes in northwestern North America structured populations of wolverines (Gulo gulo)
Cyclic climatic and glacial fluctuations of the Late Quaternary produced a dynamic biogeographic history for high latitudes. To refine our understanding of this history in northwestern North America, we explored geographic structure in a wide-ranging carnivore, the wolverine (Gulo gulo). We examined genetic variation in populations across mainland Alaska, coastal Southeast Alaska, and...
Authors
Dianna M Krejsa, Sandra L. Talbot, George K. Sage, Sarah A. Sonsthagen, Thomas S Jung, Audrey J Magoun, Joseph A. Cook
Anthropogenic edge effects in habitat selection by sun bears in a protected area Anthropogenic edge effects in habitat selection by sun bears in a protected area
Wildlife populations in southeast Asia are increasingly experiencing a broad array of anthropogenic threats, and mammalian carnivores are particularly vulnerable. Populations of the Malayan sun bear Helarctos malayanus are estimated to have declined by 30% over the last 30 years from forest conversion to industrial plantations and mortality associated with human–bear conflicts and...
Authors
T. L Tee, Frank T. van Manen, P. Kretzschmar, S. P. Sharp, S. T. Wong, S. Gadas, S. Ratnayeke
Effects of supplemental feeding on the fecal bacterial communities of Rocky Mountain elk in the Greater Yellowstone Ecosystem Effects of supplemental feeding on the fecal bacterial communities of Rocky Mountain elk in the Greater Yellowstone Ecosystem
Supplemental feeding of wildlife is a common practice often undertaken for recreational or management purposes, but it may have unintended consequences for animal health. Understanding cryptic effects of diet supplementation on the gut microbiomes of wild mammals is important to inform conservation and management strategies. Multiple laboratory studies have demonstrated the importance of...
Authors
Claire E Couch, Benjamin Wise, Brandon Scurlock, Jared D. Rogerson, Rebecca K. Fuda, Eric K Cole, Kimberly E Szcodronski, Adam Sepulveda, Patrick R. Hutchins, Paul C. Cross
Evaluation of connectivity among black bear populations in Georgia Evaluation of connectivity among black bear populations in Georgia
Habitat fragmentation and loss contribute to isolation of wildlife populations and increased extinction risks for various species, including many large carnivores. We studied a small and isolated population of American black bears (Ursus americanus) that is of conservation concern in central Georgia, USA (i.e., central Georgia bear population [CGBP]). Our goal was to evaluate the...
Authors
Michael J. Hooker, Joseph D. Clark, Bobby T Bond, Michael J Chamberlain
A reassessment of Chao2 estimates for population monitoring of grizzly bears in the Greater Yellowstone Ecosystem A reassessment of Chao2 estimates for population monitoring of grizzly bears in the Greater Yellowstone Ecosystem
The Yellowstone Ecosystem Subcommittee (YES) asked the Interagency Grizzly Bear Study Team (IGBST) to re-assess a technique used in annual population estimation and trend monitoring of grizzly bears in the Greater Yellowstone Ecosystem (GYE). This technique is referred to as the Chao2 approach and estimates the number of females with cubs-of-the-year (hereafter, females with cubs) and...
Authors
Frank T. van Manen, Michael R. Ebinger, Mark A. Haroldson, Daniel D. Bjornlie, Justin Clapp, Daniel J. Thompson, Kevin L. Frey, Cecily M. Costello, Curtis Hendricks, Jeremy M. Nicholson, Kerry A. Gunther, Katharine R. Wilmot, Hilary Cooley, Jennifer Fortin-Noreus, Pat Hnilicka, Daniel B. Tyers
Identifying resting locations of a small elusive forest carnivore using a two-stage model accounting for GPS measurement error and hidden behavioral states Identifying resting locations of a small elusive forest carnivore using a two-stage model accounting for GPS measurement error and hidden behavioral states
Studies of animal movement using location data are often faced with two challenges. First, time series of animal locations are likely to arise from multiple behavioral states (e.g., directed movement, resting) that cannot be observed directly. Second, location data can be affected by measurement error, including failed location fixes. Simultaneously addressing both problems in a single...
Authors
Dalton Hance, Katie M. Moriarty, Bruce A. Hollen, Russell Perry
Plague transforms positive effects of precipitation on prairie dogs to negative effects Plague transforms positive effects of precipitation on prairie dogs to negative effects
Rodents characteristically benefit from increased precipitation, especially in typically dry habitats; “good years” of high precipitation improve their forage and water balance. However, Yersinia pestis (plague), a flea-borne pathogen of mammals that was introduced to western North America, has the greatest negative impact on at least some species of rodents during years of above-average
Authors
Dean E. Biggins, David A. Eads, Jerry L. Godbey
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
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: 56
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
Maui Island, Hawaiian hoary bat behavior at wind turbines, 2018 Maui Island, Hawaiian hoary bat behavior at wind turbines, 2018
The Hawaiian hoary bat (Lasiurus cinereus semotus), a federally and state listed endangered subspecies, is the only extant native terrestrial mammal in the Hawaiian archipelago. It is an insectivorous, solitary and foliage-roosting species that generally roosts alone or in mother-pup family groups. This data release consists of three tabular datasets comprising acoustic and thermal video...
Bighorn sheep Ovine HD array genotypes from National Parks, 2004-2011 Bighorn sheep Ovine HD array genotypes from National Parks, 2004-2011
Between 2004 and 2011 bighorn sheep were darted in Glacier National Park and in Dinosaur National Monument. Blood was drawn. These are the genotypes resulting from an Ovine HD array from the bighorns. The first 3 columns refers to bighorn sheep identifiers: 'Herd_Unit', 'IndID', and 'AgencyID'. IndID is the identifier assigned at Montana State University. Subsequent columns each...
Hawaii Army National Guard Hawaiian Hoary Bat Acoustic Monitoring 2012-2018 and Keaukaha Military Reservation Prey Study 2018 Hawaii Army National Guard Hawaiian Hoary Bat Acoustic Monitoring 2012-2018 and Keaukaha Military Reservation Prey Study 2018
Acoustic sampling for occurrence of the endangered Hawaiian hoary bat (Lasiurus cinereus semotus) was conducted at 18 "long-term" acoustic monitoring stations on 12 Hawaii Army National Guard (HIARNG) installations across the islands of Hawaii, Maui, Molokai, Oahu, and Kauai between 2012 and 2018. Hawaiian hoary bat insect prey sampling with paired acoustic monitoring was conducted at...
Small mammal surveys from northern San Francisco Bay: 1998-2014 Small mammal surveys from northern San Francisco Bay: 1998-2014
This datasets summarizes small mammal trapping efforts that USGS San Francisco Bay Estuary Field Station has led, co-led, or supervised, to detect and monitor the endangered salt marsh harvest mouse (Reithrodontomys raviventris) in the northern reaches of San Francisco Bay from 1998-2014. As the salt marsh harvest mouse is listed as endangered under the Endangered Species Act, sensitive...
Trap records used to analyze trends in mammalian predator control trapping events intended to protect ground-nesting, endangered birds at Haleakal? National Park, Hawai'i (2000 - 2014) Trap records used to analyze trends in mammalian predator control trapping events intended to protect ground-nesting, endangered birds at Haleakal? National Park, Hawai'i (2000 - 2014)
Predation and habitat degradation by non-native species are principal terrestrial threats to the federally endangered Hawaiian Petrel ('ua'u, Pterodroma sandwichensis) and Hawaiian Goose (nene, Branta sandvicensis) within Haleakala National Park (HALE), Maui, Hawai'i. Since 1981, HALE has maintained a network of live-traps to control invasive mammalian predators and protect these...
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
The importance of wilderness to wolf (Canis lupus) survival and cause-specific mortality over 50 years The importance of wilderness to wolf (Canis lupus) survival and cause-specific mortality over 50 years
We assessed the relative importance of wilderness to gray wolf (Canis lupus) population dynamics over 50 years in a population that 1) was long extant (i.e., not reintroduced or recolonized), 2) was not subject to harvest in our study area until recently, and 3) used both wilderness and adjacent, mainly public, non-wilderness. We analyzed the survival of radiocollared wolves (n = 756...
Authors
Shannon Barber-Meyer, Tyler Wheeldon, L. David Mech
Spring phenology drives range shifts in a migratory Arctic ungulate with key implications for the future Spring phenology drives range shifts in a migratory Arctic ungulate with key implications for the future
Annual variation in phenology can have profound effects on the behavior of animals. As climate change advances spring phenology in ecosystems around the globe, it is becoming increasingly important to understand how animals respond to variation in the timing of seasonal events and how their responses may shift in the future. We investigated the influence of spring phenology on the...
Authors
John P. Severson, Heather E. Johnson, Stephen M. Arthur, William Leacock, Michael J. Suitor
Effects of elk and bison herbivory on narrowleaf cottonwood Effects of elk and bison herbivory on narrowleaf cottonwood
Ungulate browsing influences the structure and composition of woody plant communities, including species composition and biomass production as well as age distribution, recruitment, and mortality. We evaluated effects of elk and bison herbivory on narrowleaf cottonwood (Populus angustifolia) communities in a semiarid ecosystem in southern Colorado. Cottonwoods in this ecosystem have been...
Authors
Linda C. Zeigenfuss, Kathryn A. Schoenecker
Effects of elk and bison herbivory on narrowleaf cottonwood Effects of elk and bison herbivory on narrowleaf cottonwood
Ungulate browsing influences the structure and composition of woody plant communities, including species composition and biomass production as well as age distribution, recruitment, and mortality. We evaluated effects of elk and bison herbivory on narrowleaf cottonwood (Populus angustifolia) communities in a semiarid ecosystem in southern Colorado. Cottonwoods in this ecosystem have been...
Authors
Linda C. Zeigenfuss, Kathryn A. Schoenecker
Dynamic landscapes in northwestern North America structured populations of wolverines (Gulo gulo) Dynamic landscapes in northwestern North America structured populations of wolverines (Gulo gulo)
Cyclic climatic and glacial fluctuations of the Late Quaternary produced a dynamic biogeographic history for high latitudes. To refine our understanding of this history in northwestern North America, we explored geographic structure in a wide-ranging carnivore, the wolverine (Gulo gulo). We examined genetic variation in populations across mainland Alaska, coastal Southeast Alaska, and...
Authors
Dianna M Krejsa, Sandra L. Talbot, George K. Sage, Sarah A. Sonsthagen, Thomas S Jung, Audrey J Magoun, Joseph A. Cook
Anthropogenic edge effects in habitat selection by sun bears in a protected area Anthropogenic edge effects in habitat selection by sun bears in a protected area
Wildlife populations in southeast Asia are increasingly experiencing a broad array of anthropogenic threats, and mammalian carnivores are particularly vulnerable. Populations of the Malayan sun bear Helarctos malayanus are estimated to have declined by 30% over the last 30 years from forest conversion to industrial plantations and mortality associated with human–bear conflicts and...
Authors
T. L Tee, Frank T. van Manen, P. Kretzschmar, S. P. Sharp, S. T. Wong, S. Gadas, S. Ratnayeke
Effects of supplemental feeding on the fecal bacterial communities of Rocky Mountain elk in the Greater Yellowstone Ecosystem Effects of supplemental feeding on the fecal bacterial communities of Rocky Mountain elk in the Greater Yellowstone Ecosystem
Supplemental feeding of wildlife is a common practice often undertaken for recreational or management purposes, but it may have unintended consequences for animal health. Understanding cryptic effects of diet supplementation on the gut microbiomes of wild mammals is important to inform conservation and management strategies. Multiple laboratory studies have demonstrated the importance of...
Authors
Claire E Couch, Benjamin Wise, Brandon Scurlock, Jared D. Rogerson, Rebecca K. Fuda, Eric K Cole, Kimberly E Szcodronski, Adam Sepulveda, Patrick R. Hutchins, Paul C. Cross
Evaluation of connectivity among black bear populations in Georgia Evaluation of connectivity among black bear populations in Georgia
Habitat fragmentation and loss contribute to isolation of wildlife populations and increased extinction risks for various species, including many large carnivores. We studied a small and isolated population of American black bears (Ursus americanus) that is of conservation concern in central Georgia, USA (i.e., central Georgia bear population [CGBP]). Our goal was to evaluate the...
Authors
Michael J. Hooker, Joseph D. Clark, Bobby T Bond, Michael J Chamberlain
A reassessment of Chao2 estimates for population monitoring of grizzly bears in the Greater Yellowstone Ecosystem A reassessment of Chao2 estimates for population monitoring of grizzly bears in the Greater Yellowstone Ecosystem
The Yellowstone Ecosystem Subcommittee (YES) asked the Interagency Grizzly Bear Study Team (IGBST) to re-assess a technique used in annual population estimation and trend monitoring of grizzly bears in the Greater Yellowstone Ecosystem (GYE). This technique is referred to as the Chao2 approach and estimates the number of females with cubs-of-the-year (hereafter, females with cubs) and...
Authors
Frank T. van Manen, Michael R. Ebinger, Mark A. Haroldson, Daniel D. Bjornlie, Justin Clapp, Daniel J. Thompson, Kevin L. Frey, Cecily M. Costello, Curtis Hendricks, Jeremy M. Nicholson, Kerry A. Gunther, Katharine R. Wilmot, Hilary Cooley, Jennifer Fortin-Noreus, Pat Hnilicka, Daniel B. Tyers
Identifying resting locations of a small elusive forest carnivore using a two-stage model accounting for GPS measurement error and hidden behavioral states Identifying resting locations of a small elusive forest carnivore using a two-stage model accounting for GPS measurement error and hidden behavioral states
Studies of animal movement using location data are often faced with two challenges. First, time series of animal locations are likely to arise from multiple behavioral states (e.g., directed movement, resting) that cannot be observed directly. Second, location data can be affected by measurement error, including failed location fixes. Simultaneously addressing both problems in a single...
Authors
Dalton Hance, Katie M. Moriarty, Bruce A. Hollen, Russell Perry
Plague transforms positive effects of precipitation on prairie dogs to negative effects Plague transforms positive effects of precipitation on prairie dogs to negative effects
Rodents characteristically benefit from increased precipitation, especially in typically dry habitats; “good years” of high precipitation improve their forage and water balance. However, Yersinia pestis (plague), a flea-borne pathogen of mammals that was introduced to western North America, has the greatest negative impact on at least some species of rodents during years of above-average
Authors
Dean E. Biggins, David A. Eads, Jerry L. Godbey
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
See what's new!