James Cain, III, PhD (Former Employee)
Science and Products
Filter Total Items: 68
Pleistocene–Holocene vicariance, not Anthropocene landscape change, explains the genetic structure of American black bear (Ursus americanus) populations in the American Southwest and northern Mexico Pleistocene–Holocene vicariance, not Anthropocene landscape change, explains the genetic structure of American black bear (Ursus americanus) populations in the American Southwest and northern Mexico
The phylogeography of the American black bear (Ursus americanus) is characterized by isolation into glacial refugia, followed by population expansion and genetic admixture. Anthropogenic activities, including overharvest, habitat loss, and transportation infrastructure, have also influenced their landscape genetic structure. We describe the genetic structure of the American black bear in...
Authors
Matthew J. Gould, James W. Cain, Todd C. Atwood, Larisa E. Harding, Heather E. Johnson, Dave P. Onorato, Frederic S. Winslow, Gary W. Roemer
Structured decision making Structured decision making
No abstract available.
Authors
Michael C. Runge, J. Barry Grand, Michael S. Mitchell
The abundance and persistence of Caprinae populations The abundance and persistence of Caprinae populations
Stable or growing populations may go extinct when their sizes cannot withstand large swings in temporal variation and stochastic forces. Hence, the minimum abundance threshold defining when populations can persist without human intervention forms a key conservation parameter. We identify this threshold for many populations of Caprinae, typically threatened species lacking demographic...
Authors
Grant M. Harris, Matthew J. Butler, David R. Stewart, James W. Cain
Whooping and sandhill cranes visit upland ponds proportional to migration phenology on the Texas coast Whooping and sandhill cranes visit upland ponds proportional to migration phenology on the Texas coast
Two crane species, whooping cranes (Grus americana) and sandhill cranes (Antigone canadensis), overwinter along the Texas Gulf Coast. Periodic, extreme drought conditions have prompted concerns that potential freshwater limitations could hinder conservation of cranes, especially endangered whooping cranes. In response, land managers constructed and maintained freshwater ponds in upland...
Authors
Matthew J Butler, Kristine L. Metzger, Colt R. Sanspree, James W. Cain, Grant M Harris
Accounting for residual heterogeneity in double-observer sightability models decreases bias in burro abundance estimates Accounting for residual heterogeneity in double-observer sightability models decreases bias in burro abundance estimates
Feral burros (Equus asinus) and horses (E. ferus caballus) inhabiting public land in the western United States are intended to be managed at population levels established to promote a thriving, natural ecological balance. Double-observer sightability (MDS) models, which use detection records from multiple observers and sighting covariates, perform well for estimating feral horse...
Authors
Jacob Daniel Hennig, Kathryn A. Schoenecker, James W. Cain, Gary W. Roemer, Jeffrey L. Laake
Noninvasive sampling of mountain lion hair using modified foothold traps Noninvasive sampling of mountain lion hair using modified foothold traps
Genetic analysis of non-invasively obtained samples is an increasingly affordable option for many wildlife studies, but it has remained difficult to obtain high-quality samples from many species. We modified 8” Belisle foot snares (Belisle Enterprises, Quebec, Canada) to non-invasively obtain mountain lion (Puma concolor) hair samples in unbaited trail sets. We deployed 22 hair traps...
Authors
Tricia S. Rossettie, Travis W. Perry, James W. Cain
Science and Products
Filter Total Items: 68
Pleistocene–Holocene vicariance, not Anthropocene landscape change, explains the genetic structure of American black bear (Ursus americanus) populations in the American Southwest and northern Mexico Pleistocene–Holocene vicariance, not Anthropocene landscape change, explains the genetic structure of American black bear (Ursus americanus) populations in the American Southwest and northern Mexico
The phylogeography of the American black bear (Ursus americanus) is characterized by isolation into glacial refugia, followed by population expansion and genetic admixture. Anthropogenic activities, including overharvest, habitat loss, and transportation infrastructure, have also influenced their landscape genetic structure. We describe the genetic structure of the American black bear in...
Authors
Matthew J. Gould, James W. Cain, Todd C. Atwood, Larisa E. Harding, Heather E. Johnson, Dave P. Onorato, Frederic S. Winslow, Gary W. Roemer
Structured decision making Structured decision making
No abstract available.
Authors
Michael C. Runge, J. Barry Grand, Michael S. Mitchell
The abundance and persistence of Caprinae populations The abundance and persistence of Caprinae populations
Stable or growing populations may go extinct when their sizes cannot withstand large swings in temporal variation and stochastic forces. Hence, the minimum abundance threshold defining when populations can persist without human intervention forms a key conservation parameter. We identify this threshold for many populations of Caprinae, typically threatened species lacking demographic...
Authors
Grant M. Harris, Matthew J. Butler, David R. Stewart, James W. Cain
Whooping and sandhill cranes visit upland ponds proportional to migration phenology on the Texas coast Whooping and sandhill cranes visit upland ponds proportional to migration phenology on the Texas coast
Two crane species, whooping cranes (Grus americana) and sandhill cranes (Antigone canadensis), overwinter along the Texas Gulf Coast. Periodic, extreme drought conditions have prompted concerns that potential freshwater limitations could hinder conservation of cranes, especially endangered whooping cranes. In response, land managers constructed and maintained freshwater ponds in upland...
Authors
Matthew J Butler, Kristine L. Metzger, Colt R. Sanspree, James W. Cain, Grant M Harris
Accounting for residual heterogeneity in double-observer sightability models decreases bias in burro abundance estimates Accounting for residual heterogeneity in double-observer sightability models decreases bias in burro abundance estimates
Feral burros (Equus asinus) and horses (E. ferus caballus) inhabiting public land in the western United States are intended to be managed at population levels established to promote a thriving, natural ecological balance. Double-observer sightability (MDS) models, which use detection records from multiple observers and sighting covariates, perform well for estimating feral horse...
Authors
Jacob Daniel Hennig, Kathryn A. Schoenecker, James W. Cain, Gary W. Roemer, Jeffrey L. Laake
Noninvasive sampling of mountain lion hair using modified foothold traps Noninvasive sampling of mountain lion hair using modified foothold traps
Genetic analysis of non-invasively obtained samples is an increasingly affordable option for many wildlife studies, but it has remained difficult to obtain high-quality samples from many species. We modified 8” Belisle foot snares (Belisle Enterprises, Quebec, Canada) to non-invasively obtain mountain lion (Puma concolor) hair samples in unbaited trail sets. We deployed 22 hair traps...
Authors
Tricia S. Rossettie, Travis W. Perry, James W. Cain