Joseph Clark, Ph.D. (Former Employee)
Science and Products
The Effects of Climate Variability and Change on Human-Bear Interactions in North America
Negative human-bear interactions are a common problem and management priority for many wildlife agencies in North America. Bears are adaptable to anthropogenic activity and food sources which creates opportunities for conflict with humans, including property damage, livestock depredation, and in severe cases, human injury. Acute climate events and long-term directional climate change can
A generic web application to visualize and understand movements of tagged animals
The goal of this project was to maximize the value of expensive animal tagging data. We developed an interactive web application to help scientists understand patterns in their own tagging datasets and to help scientists, funders and agencies communicate tagging data to decision-makers and to the general public. Interactive visualizations have emerged recently as a valuable tool for...
NOROCK Large Carnivore Research Program
NOROCK has substantial expertise in large carnivore research, primarily involving species listed as Threatened or Endangered. NOROCK’s Large Carnivore Research Program includes scientists from NOROCK’s Headquarters, West Glacier Field Station, and the Southern Appalachian Field Station. Studies are conducted in a wide variety of landscapes throughout the U.S., as well as international research...
Seasonal Movement of Wild Hogs in Big South Fork National River and Recreation Area and Great Smoky Mountains National Park
The wild hog (Sus scrofa) is an exotic invasive species that significantly impacts native resources and their populations are expanding significantly throughout the United States. In addition, wild hogs are likely contributing to the spread of disease such as pseudorabies. National Park Service units in the Southeast that have populations of exotic wild hogs include Big South Fork National River...
Joe Clark's Research
This is a summary of the research focus for Dr. Joe Clark.
Map of the Rinconada and Reliz Fault Zones, Salinas River Valley, California Map of the Rinconada and Reliz Fault Zones, Salinas River Valley, California
The Rinconada Fault and its related faults constitute a major structural element of the Salinas River valley, which is known regionally, and referred to herein, as the 'Salinas Valley'. The Rinconada Fault extends 230 km from King City in the north to the Big Pine Fault in the south. At the south end of the map area near Santa Margarita, the Rinconada Fault separates granitic and...
Geologic map and map database of the Spreckels 7.5-minute Quadrangle, Monterey County, California Geologic map and map database of the Spreckels 7.5-minute Quadrangle, Monterey County, California
Introduction The Spreckels quadrangle lies at the north end of the Sierra de Salinas and extends from the Salinas Valley on the northeast across Los Laurelles Ridge south to Carmel Valley, an intermontane valley that separates the Santa Lucia Range from the Sierra de Salinas (fig. 1). The Toro Regional Park occupies the east-central part of the quadrangle, whereas the former Fort Ord...
Filter Total Items: 89
Louisiana black bear monitoring report Louisiana black bear monitoring report
No abstract available.
Authors
Joseph D. Clark, John Hanks
Spatially explicit capture-mark-recapture to evaluate demographic status of the Louisiana black bear Spatially explicit capture-mark-recapture to evaluate demographic status of the Louisiana black bear
Louisiana black bears (Ursus americanus luteolus) occur in semi-isolated fragments of bottomland hardwood forest in the lower Mississippi Alluvial Valley and were listed as threatened under the United States Endangered Species Act in 1992. A population viability analysis based on radio-telemetry and capture-mark-recapture (CMR) data collected from 2002 to 2012 revealed that the...
Authors
Joseph D. Clark, Heidi L. Adams, Ben Augustine, John R. Berry, Dustin Champagne, Maria Davidson, John Hanks, Jared S. Laufenberg, Sean M. Murphy
Spatially explicit capture-recapture using fecal DNA to estimate elk population abundance and growth in western North Carolina, USA Spatially explicit capture-recapture using fecal DNA to estimate elk population abundance and growth in western North Carolina, USA
In an effort to restore extirpated elk to their historical range, 52 elk were reintroduced to Great Smoky Mountains National Park (GRSM) in North Carolina, USA, during 2001 and 2002. Since their reintroduction, elk numbers have increased, and elk have extended their range beyond GRSM boundaries. We used spatially explicit capture-recapture (SCR) methods based on fecal DNA to identify...
Authors
Jessica L. Braunstein, Joseph D. Clark, Benjamin C. Augustine, Caleb R. Hickman, Justin McVey, Joseph G. Yarkovich
Assessing wild turkey productivity before and after a 14-day delay in the start date of the spring hunting season in Tennessee Assessing wild turkey productivity before and after a 14-day delay in the start date of the spring hunting season in Tennessee
Ten state wildlife management agencies in the United States, including six within the Southeast, have delayed their spring wild turkey (Meleagris gallopavo) hunting seasons since 2017 by five or more days to address concerns related to the potential effects of hunting on wild turkey seasonal productivity. One hypothesis posits that if the spring hunting season is too early, there may be
Authors
Joseph O. Quehl, Lindsey M. Phillips, Vincent M. Johnson, Craig A. Harper, Joseph D. Clark, Roger D. Shields, David A. Buehler
A systematic review of the effects of climate variability and change on black and brown bear ecology and interactions with humans A systematic review of the effects of climate variability and change on black and brown bear ecology and interactions with humans
Climate change poses a pervasive threat to humans and wildlife by altering resource availability, changing co-occurrences, and directly or indirectly influencing human-wildlife interactions. For many wildlife agencies in North America, managing bears (Ursus spp.) and human-bear interactions is a priority, yet the direct and indirect effects of climate change are exacerbating management...
Authors
Katherine Anne Kurth, Kate Malpeli, Joseph D. Clark, Heather E. Johnson, Frank T. van Manen
No long-term effect of black bear removal on elk calf recruitment in the southern Appalachians No long-term effect of black bear removal on elk calf recruitment in the southern Appalachians
In 2001 and 2002, 52 elk (Cervus canadensis; 21 males, 31 females), originally obtained from Elk Island National Park, Alberta, Canada, were transported and released into Cataloochee Valley in the northeastern portion of Great Smoky Mountains National Park (GRSM, Park), North Carolina, USA. The annual population growth rate (λ) was negative (0.996, 95% CI = 0.945–1.047) and predation by...
Authors
Joseph G. Yarkovich, Jessica L. Braunstein, Jennifer M. Mullinax, Joseph D. Clark
A multi-level modeling approach to guide management of female feral hogs in Great Smoky Mountains National Park A multi-level modeling approach to guide management of female feral hogs in Great Smoky Mountains National Park
We trapped, anesthetized, and fit 16 female feral swine (Sus scrofa) with Global Positioning System (GPS) collars in Great Smoky Mountains National Park (GRSM) to develop predictive summer and winter models for more effective population control efforts. Given the highly diverse habitat and topography in GRSM and the spatial extent of our dataset, we employed Step Selection Function (SSF)...
Authors
Frances E. Buderman, Patrick J. Helm, Joseph D. Clark, Ryan H. Williamson, Joseph G. Yarkovich, Jennifer M. Mullinax
Appendix K: Louisiana black bear post-delisting monitoring report Appendix K: Louisiana black bear post-delisting monitoring report
No abstract available.
Authors
Joseph D. Clark, Robert Greco, Monica Sikes
Rainforest carnivore ecology in a managed forest reserve: Differential seasonal correlates between habitat components and relative abundance Rainforest carnivore ecology in a managed forest reserve: Differential seasonal correlates between habitat components and relative abundance
Studies of relationships between seasons and Neotropical carnivore distributions tend to focus on water and prey availability without considering other habitat components such as escape, foraging, and resting cover. Our goal was to evaluate habitat characteristics that may be important for predicting the seasonal (dry or rainy) relative abundance of four commonly captured Neotropical...
Authors
Lauren N. Watine, Emma V. Willcox, Joseph D. Clark, Craig A. Harper
Density, harvest rates, and growth of a reintroduced American black bear population Density, harvest rates, and growth of a reintroduced American black bear population
Less than 30% of all species reintroductions have been successful and it is important that factors associated with success or failure be identified. Officials experimentally translocated 14 adult female American black bears (Ursus americanus) from Great Smoky Mountains National Park, North Carolina and Tennessee, USA, to Big South Fork National River and Recreation Area in the Cumberland...
Authors
Joshua D Alston, Joseph D. Clark, Daniel B. Gibbs, John T. Hast
Estimates of abundance and harvest rates of female black bears across a large spatial extent Estimates of abundance and harvest rates of female black bears across a large spatial extent
American black bears (Ursus americanus) are an iconic wildlife species in the southern Appalachian highlands of the eastern United States and have increased in number and range since the early 1980s. Given an increasing number of human-bear conflicts in the region, many management agencies have liberalized harvest regulations to reduce bear populations to socially acceptable levels...
Authors
Jacob Humm, Joseph D. Clark
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
Science and Products
The Effects of Climate Variability and Change on Human-Bear Interactions in North America
Negative human-bear interactions are a common problem and management priority for many wildlife agencies in North America. Bears are adaptable to anthropogenic activity and food sources which creates opportunities for conflict with humans, including property damage, livestock depredation, and in severe cases, human injury. Acute climate events and long-term directional climate change can
A generic web application to visualize and understand movements of tagged animals
The goal of this project was to maximize the value of expensive animal tagging data. We developed an interactive web application to help scientists understand patterns in their own tagging datasets and to help scientists, funders and agencies communicate tagging data to decision-makers and to the general public. Interactive visualizations have emerged recently as a valuable tool for...
NOROCK Large Carnivore Research Program
NOROCK has substantial expertise in large carnivore research, primarily involving species listed as Threatened or Endangered. NOROCK’s Large Carnivore Research Program includes scientists from NOROCK’s Headquarters, West Glacier Field Station, and the Southern Appalachian Field Station. Studies are conducted in a wide variety of landscapes throughout the U.S., as well as international research...
Seasonal Movement of Wild Hogs in Big South Fork National River and Recreation Area and Great Smoky Mountains National Park
The wild hog (Sus scrofa) is an exotic invasive species that significantly impacts native resources and their populations are expanding significantly throughout the United States. In addition, wild hogs are likely contributing to the spread of disease such as pseudorabies. National Park Service units in the Southeast that have populations of exotic wild hogs include Big South Fork National River...
Joe Clark's Research
This is a summary of the research focus for Dr. Joe Clark.
Map of the Rinconada and Reliz Fault Zones, Salinas River Valley, California Map of the Rinconada and Reliz Fault Zones, Salinas River Valley, California
The Rinconada Fault and its related faults constitute a major structural element of the Salinas River valley, which is known regionally, and referred to herein, as the 'Salinas Valley'. The Rinconada Fault extends 230 km from King City in the north to the Big Pine Fault in the south. At the south end of the map area near Santa Margarita, the Rinconada Fault separates granitic and...
Geologic map and map database of the Spreckels 7.5-minute Quadrangle, Monterey County, California Geologic map and map database of the Spreckels 7.5-minute Quadrangle, Monterey County, California
Introduction The Spreckels quadrangle lies at the north end of the Sierra de Salinas and extends from the Salinas Valley on the northeast across Los Laurelles Ridge south to Carmel Valley, an intermontane valley that separates the Santa Lucia Range from the Sierra de Salinas (fig. 1). The Toro Regional Park occupies the east-central part of the quadrangle, whereas the former Fort Ord...
Filter Total Items: 89
Louisiana black bear monitoring report Louisiana black bear monitoring report
No abstract available.
Authors
Joseph D. Clark, John Hanks
Spatially explicit capture-mark-recapture to evaluate demographic status of the Louisiana black bear Spatially explicit capture-mark-recapture to evaluate demographic status of the Louisiana black bear
Louisiana black bears (Ursus americanus luteolus) occur in semi-isolated fragments of bottomland hardwood forest in the lower Mississippi Alluvial Valley and were listed as threatened under the United States Endangered Species Act in 1992. A population viability analysis based on radio-telemetry and capture-mark-recapture (CMR) data collected from 2002 to 2012 revealed that the...
Authors
Joseph D. Clark, Heidi L. Adams, Ben Augustine, John R. Berry, Dustin Champagne, Maria Davidson, John Hanks, Jared S. Laufenberg, Sean M. Murphy
Spatially explicit capture-recapture using fecal DNA to estimate elk population abundance and growth in western North Carolina, USA Spatially explicit capture-recapture using fecal DNA to estimate elk population abundance and growth in western North Carolina, USA
In an effort to restore extirpated elk to their historical range, 52 elk were reintroduced to Great Smoky Mountains National Park (GRSM) in North Carolina, USA, during 2001 and 2002. Since their reintroduction, elk numbers have increased, and elk have extended their range beyond GRSM boundaries. We used spatially explicit capture-recapture (SCR) methods based on fecal DNA to identify...
Authors
Jessica L. Braunstein, Joseph D. Clark, Benjamin C. Augustine, Caleb R. Hickman, Justin McVey, Joseph G. Yarkovich
Assessing wild turkey productivity before and after a 14-day delay in the start date of the spring hunting season in Tennessee Assessing wild turkey productivity before and after a 14-day delay in the start date of the spring hunting season in Tennessee
Ten state wildlife management agencies in the United States, including six within the Southeast, have delayed their spring wild turkey (Meleagris gallopavo) hunting seasons since 2017 by five or more days to address concerns related to the potential effects of hunting on wild turkey seasonal productivity. One hypothesis posits that if the spring hunting season is too early, there may be
Authors
Joseph O. Quehl, Lindsey M. Phillips, Vincent M. Johnson, Craig A. Harper, Joseph D. Clark, Roger D. Shields, David A. Buehler
A systematic review of the effects of climate variability and change on black and brown bear ecology and interactions with humans A systematic review of the effects of climate variability and change on black and brown bear ecology and interactions with humans
Climate change poses a pervasive threat to humans and wildlife by altering resource availability, changing co-occurrences, and directly or indirectly influencing human-wildlife interactions. For many wildlife agencies in North America, managing bears (Ursus spp.) and human-bear interactions is a priority, yet the direct and indirect effects of climate change are exacerbating management...
Authors
Katherine Anne Kurth, Kate Malpeli, Joseph D. Clark, Heather E. Johnson, Frank T. van Manen
No long-term effect of black bear removal on elk calf recruitment in the southern Appalachians No long-term effect of black bear removal on elk calf recruitment in the southern Appalachians
In 2001 and 2002, 52 elk (Cervus canadensis; 21 males, 31 females), originally obtained from Elk Island National Park, Alberta, Canada, were transported and released into Cataloochee Valley in the northeastern portion of Great Smoky Mountains National Park (GRSM, Park), North Carolina, USA. The annual population growth rate (λ) was negative (0.996, 95% CI = 0.945–1.047) and predation by...
Authors
Joseph G. Yarkovich, Jessica L. Braunstein, Jennifer M. Mullinax, Joseph D. Clark
A multi-level modeling approach to guide management of female feral hogs in Great Smoky Mountains National Park A multi-level modeling approach to guide management of female feral hogs in Great Smoky Mountains National Park
We trapped, anesthetized, and fit 16 female feral swine (Sus scrofa) with Global Positioning System (GPS) collars in Great Smoky Mountains National Park (GRSM) to develop predictive summer and winter models for more effective population control efforts. Given the highly diverse habitat and topography in GRSM and the spatial extent of our dataset, we employed Step Selection Function (SSF)...
Authors
Frances E. Buderman, Patrick J. Helm, Joseph D. Clark, Ryan H. Williamson, Joseph G. Yarkovich, Jennifer M. Mullinax
Appendix K: Louisiana black bear post-delisting monitoring report Appendix K: Louisiana black bear post-delisting monitoring report
No abstract available.
Authors
Joseph D. Clark, Robert Greco, Monica Sikes
Rainforest carnivore ecology in a managed forest reserve: Differential seasonal correlates between habitat components and relative abundance Rainforest carnivore ecology in a managed forest reserve: Differential seasonal correlates between habitat components and relative abundance
Studies of relationships between seasons and Neotropical carnivore distributions tend to focus on water and prey availability without considering other habitat components such as escape, foraging, and resting cover. Our goal was to evaluate habitat characteristics that may be important for predicting the seasonal (dry or rainy) relative abundance of four commonly captured Neotropical...
Authors
Lauren N. Watine, Emma V. Willcox, Joseph D. Clark, Craig A. Harper
Density, harvest rates, and growth of a reintroduced American black bear population Density, harvest rates, and growth of a reintroduced American black bear population
Less than 30% of all species reintroductions have been successful and it is important that factors associated with success or failure be identified. Officials experimentally translocated 14 adult female American black bears (Ursus americanus) from Great Smoky Mountains National Park, North Carolina and Tennessee, USA, to Big South Fork National River and Recreation Area in the Cumberland...
Authors
Joshua D Alston, Joseph D. Clark, Daniel B. Gibbs, John T. Hast
Estimates of abundance and harvest rates of female black bears across a large spatial extent Estimates of abundance and harvest rates of female black bears across a large spatial extent
American black bears (Ursus americanus) are an iconic wildlife species in the southern Appalachian highlands of the eastern United States and have increased in number and range since the early 1980s. Given an increasing number of human-bear conflicts in the region, many management agencies have liberalized harvest regulations to reduce bear populations to socially acceptable levels...
Authors
Jacob Humm, Joseph D. Clark
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