Blake Lowrey, Ph.d.
My research focuses on migration and disease ecology as well as the habitat requirements of temperate ungulates. I use modern techniques, software, and applications to address important ecological questions that support species management and ecosystem conservation.
Professional Experience
Present: Biologist, USGS Northern Rocky Mountain Science Center, Bozeman, MT
Education and Certifications
Ph.D. Fish and Wildlife Biology Fish and Wildlife Ecology and Management Program, Department of Ecology, Montana State University. 2018.
MS Systems Ecology Systems Ecology Program, University of Montana. 2013
Science and Products
Wyoming Landscape Conservation Initiative (WLCI) research at NOROCK
The Wyoming Landscape Conservation Initiative (WLCI) addresses the impacts of land-use and habitat changes on Southwest Wyoming’s natural resources. This long-term project involves partners from 12 Federal, State, and local natural resource agencies, as well as non-governmental organizations. NOROCK scientists, partners, and scientists from other USGS centers conduct integrated research to support...
Corridor Mapping Team: Ungulate Migrations of the West
Advancing the conservation and understanding of Wyoming's migratory hooved animals (mule deer, elk, pronghorn, etc.). The Wyoming Cooperative Fish and Wildlife Research Unit is led by USGS federal researchers. The Wyoming Migration Initiative is a University of Wyoming’s Zoology and Physiology Department-based collaborative of biologists, photographers, mapmakers, and writers working to research...
USGS Chronic Wasting Disease Research at NOROCK
Chronic wasting disease (CWD) is a growing management issue in the U.S. and has been detected in 36 states as of April 2025, including many western states. There is no cure or vaccine for CWD, and the disease threatens economically important animals like elk and deer. NOROCK scientists have taken a multi-pronged approach to develop actionable science including 1) evaluating CWD management options...
The influence of natural mineral licks on wildlife disease dynamics
Some locations on the landscape can aggregate animals of multiple species and could become hotspots of disease transmission. One example of this are areas of localized concentrations of minerals that animals like deer, elk, bighorn sheep, and mountain goats use and diseases like chronic wasting disease or respiratory diseases could spread among or within species who use natural mineral licks...
Ungulate Migrations of the Western United States, Volume 6 Ungulate Migrations of the Western United States, Volume 6
This is the data archive for the publication Ungulate Migrations of the Western United States, Volume 6 and includes the collection of GIS map files that are mapped and described in the report. These map files are meant to provide a common spatial representation of the mapped migrations and seasonal ranges. This data release provides the means for ungulate migrations to be mapped and...
Ungulate Migrations of the Western United States, Volume 5 Ungulate Migrations of the Western United States, Volume 5
This is the data archive for the publication Ungulate Migrations of the Western United States, Volume 5 and includes the collection of GIS map files that are mapped and described in the report. These map files are meant to provide a common spatial representation of the mapped migrations and seasonal ranges. This data release provides the means for ungulate migrations to be mapped and...
Ungulate Migrations of the Western United States, Volume 4 Ungulate Migrations of the Western United States, Volume 4
This is the data archive for the publication Ungulate Migrations of the Western United States, Volume 4 and includes the collection of GIS map files that are mapped and described in the report. These map files are meant to provide a common spatial representation of the mapped migrations and seasonal ranges. This data release provides the means for ungulate migrations to be mapped and...
Ungulate Migrations of the Western United States, Volume 3 Ungulate Migrations of the Western United States, Volume 3
This is the data archive for the publication Ungulate Migrations of the Western United States, Volume 3 (Kauffman et al. 2022) and includes the collection of GIS map files that are mapped and described in the report. These map files are meant to provide a common spatial representation of the mapped migrations. This data release provides the means for ungulate migrations to be mapped and...
Ungulate Migrations of the Western United States, Volume 2 Ungulate Migrations of the Western United States, Volume 2
This is the data archive for the publication Ungulate Migrations of the Western United States, Volume 2 (Kauffman et al. 2022) and includes the collection of GIS map files that are mapped and described in the report. These map files are meant to provide a common spatial representation of the mapped migrations. This data release provides the means for ungulate migrations to be mapped and...
Ungulate migrations of the Western United States, volume 6 Ungulate migrations of the Western United States, volume 6
This report, volume 6 in the “Ungulate Migrations of the Western United States” report series, showcases the migrations of 23 ungulate herds in the Western United States. The report series is produced by the Corridor Mapping Team (CMT). Led by the U.S. Geological Survey, the CMT is a collaboration among 11 State agencies, as well as regional and Federal partners, and an expanding number...
Authors
Matthew J. Kauffman, Blake Lowrey, Jennifer L. McKee, Chloe J. Beaupre, Jeffrey Beck, Jon Beckmann, Scott Bergen, Joel Berger, Regan Berkley, Nathan Borg, Peyton Carl, Michelle Cowardin, Sarah Dewey, Katie M. Dugger, Amy Ehrhart, Jessica Fort, Eric Freeman, Ian Freeman, Emily R. Gelzer, David German, Jacob Gray, Evan Greenspan, Zach Gregory, Emily Hagler, Makeda Hanson, Valerie D. Hinojoza-Rood, Pat Hnilicka, Nick Jaffe, Andrew F. Jakes, Aran Johnson, Jaron T. Kolek, Art Lawson, Zach Lockyer, Daryl Lutz, Cody McKee, Jane McKeever, Jerod Merkle, Matthew A. Mumma, Dennis Newman, Erika Peckham, Jill E. Randall, Tempe Regan, Adele K. Reinking, Robert Ritson, William J. Rudd, Brianna M. Russo, Hall Sawyer, Cody Schroeder, Brandon Scurlock, Jeff Short, Bret Stansberry, Erik Steiner, Alethea Steingisser, Tom Stephenson, Eric VanNatta, Cody F. Wallace, Brad Weinmeister, Don Whittaker, Tatjana Woody, Sean Yancey
Seasonal migrations and other movements Seasonal migrations and other movements
In the past 25 years new information has been obtained on the migrations and movements of mountain sheep (bighorn [Ovis canadensis], thinhorn [Ovis dalli]). This chapter provides a comprehensive overview of mountain sheep migration and other movements across their broad distribution in western North America. Across the range of mountain sheep, migrations and other seasonal movements...
Authors
Blake Lowrey
Expression and mechanisms of behavioral plasticity in large mammals Expression and mechanisms of behavioral plasticity in large mammals
Behavioral plasticity, the alteration of behavior in response to stimuli, is becoming increasingly important in the context of human-induced rapid environmental change. Theoretical and empirical studies suggest that the expression and magnitude of behavioral plasticity are likely facilitated or constrained primarily by two factors: environmental variation and endogenous traits such as...
Authors
Rebecca R. Thomas-Kuzilik, Justine A. Becker, Jeffrey L. Beck, Justin G. Clapp, Alyson B. Courtemanch, Gary L. Fralick, Chris Geremia, L. Embere Hall, Matthew J. Kauffman, Blake Lowrey, Matthew C. Metz, Hollie M. Miyasaki, Kevin L. Monteith, Anna C. Ortega, Hall Sawyer, Douglas W. Smith, Erin E. Stahler, Daniel R. Stahler, Tana L. Verzuh, Jerod A. Merkle
Ungulate migrations of the Western United States, volume 5 Ungulate migrations of the Western United States, volume 5
Many ungulates migrate between distinct summer and winter ranges to take advantage of spatially and temporally variable food sources and avoid threats such as predators and deep snow. In 2018, the U.S. Department of the Interior established Secretarial Order 3362, which provided Federal support to expand existing research efforts to study ungulate populations and conserve their...
Authors
Matthew J. Kauffman, Blake Lowrey, Jennifer L. McKee, Travis Allen, Chloe J. Beaupre, Jeffrey L. Beck, Scott Bergen, Justin Binfet, Shelly Blair, James W. Cain, Peyton Carl, Todd Cornish, Michelle Cowardin, Rachel Curtis, Melia DeVivo, Jennifer Diamond, Katie M. Dugger, Orrin Duvuvuei, C.J. Ellingwood, Darby Finely, Jessica Fort, Eric Freeman, Ian Freeman, Jeff Gagnon, Emily R. Gelzer, Jacob Gray, Evan Greenspan, Curtis Hendricks, Valerie D. Hinojoza-Rood, Matthew Jeffress, Carolyn A. Kyle, Zack Lockyer, Cody McKee, Jerod Merkle, Jerrod Merrell, Matthew A. Mumma, Jake Powell, Craig Reddell, Adele K. Reinking, Robert Ritson, Sierra Robatcek, Benjamin S. Robb, Brianna M. Russo, Hall Sawyer, Cody Schroeder, Elissa Slezak, Scott Sprague, Erik Steiner, Alethea Steingisser, Tom Stephenson, Nicole Tatman, Kaitlyn L. Taylor, Don Whittaker, Travis Zaffarano
Estimating ungulate migration corridors from sparse movement data Estimating ungulate migration corridors from sparse movement data
Many ungulates migrate between distinct summer and winter ranges, and identifying, mapping, and conserving these migration corridors have become a focus of local, regional, and global conservation efforts. Brownian bridge movement models (BBMMs) are commonly used to empirically identify these seasonal migration corridors; however, they require location data sampled at relatively frequent...
Authors
Jennifer L. McKee, Julien Fattebert, Ellen O. Aikens, Jodi Berg, Scott Bergen, Eric K. Cole, Holly E. Copeland, Alyson B. Courtemanch, Sarah Dewey, Mark Hurley, Blake Lowrey, Jerod A. Merkle, Arthur D. Middleton, Tristan A. Nuñez, Hall Sawyer, Matthew J. Kauffman
Infection–nutrition feedbacks: Fat supports pathogen clearance but pathogens reduce fat in a wild mammal Infection–nutrition feedbacks: Fat supports pathogen clearance but pathogens reduce fat in a wild mammal
Though far less obvious than direct effects (clinical disease or mortality), the indirect influences of pathogens are difficult to estimate but may hold fitness consequences. Here, we disentangle the directional relationships between infection and energetic reserves, evaluating the hypotheses that energetic reserves influence infection status of the host and that infection elicits costs...
Authors
Rachel A. Smiley, Brittany L. Wagler, William H. Edwards, Jessica Jennings-Gaines, Katie Luukkonen, Kara Robbins, Marguerite Johnson, Alyson B. Courtemanch, Tony W. Mong, Daryl Lutz, Douglas E. McWhirter, Jennifer L. Malmberg, Blake Lowrey, Kevin L. Monteith
Western Migrations Western Migrations
The Western Migrations web application uses an interactive map to foster exploration of detailed migration routes, stopovers, and winter ranges across the West. Filter the data by species, state, specific herds, or land ownership, including Federal and Tribal lands, to focus on the areas and animals most relevant to your work or interests.
Science and Products
Wyoming Landscape Conservation Initiative (WLCI) research at NOROCK
The Wyoming Landscape Conservation Initiative (WLCI) addresses the impacts of land-use and habitat changes on Southwest Wyoming’s natural resources. This long-term project involves partners from 12 Federal, State, and local natural resource agencies, as well as non-governmental organizations. NOROCK scientists, partners, and scientists from other USGS centers conduct integrated research to support...
Corridor Mapping Team: Ungulate Migrations of the West
Advancing the conservation and understanding of Wyoming's migratory hooved animals (mule deer, elk, pronghorn, etc.). The Wyoming Cooperative Fish and Wildlife Research Unit is led by USGS federal researchers. The Wyoming Migration Initiative is a University of Wyoming’s Zoology and Physiology Department-based collaborative of biologists, photographers, mapmakers, and writers working to research...
USGS Chronic Wasting Disease Research at NOROCK
Chronic wasting disease (CWD) is a growing management issue in the U.S. and has been detected in 36 states as of April 2025, including many western states. There is no cure or vaccine for CWD, and the disease threatens economically important animals like elk and deer. NOROCK scientists have taken a multi-pronged approach to develop actionable science including 1) evaluating CWD management options...
The influence of natural mineral licks on wildlife disease dynamics
Some locations on the landscape can aggregate animals of multiple species and could become hotspots of disease transmission. One example of this are areas of localized concentrations of minerals that animals like deer, elk, bighorn sheep, and mountain goats use and diseases like chronic wasting disease or respiratory diseases could spread among or within species who use natural mineral licks...
Ungulate Migrations of the Western United States, Volume 6 Ungulate Migrations of the Western United States, Volume 6
This is the data archive for the publication Ungulate Migrations of the Western United States, Volume 6 and includes the collection of GIS map files that are mapped and described in the report. These map files are meant to provide a common spatial representation of the mapped migrations and seasonal ranges. This data release provides the means for ungulate migrations to be mapped and...
Ungulate Migrations of the Western United States, Volume 5 Ungulate Migrations of the Western United States, Volume 5
This is the data archive for the publication Ungulate Migrations of the Western United States, Volume 5 and includes the collection of GIS map files that are mapped and described in the report. These map files are meant to provide a common spatial representation of the mapped migrations and seasonal ranges. This data release provides the means for ungulate migrations to be mapped and...
Ungulate Migrations of the Western United States, Volume 4 Ungulate Migrations of the Western United States, Volume 4
This is the data archive for the publication Ungulate Migrations of the Western United States, Volume 4 and includes the collection of GIS map files that are mapped and described in the report. These map files are meant to provide a common spatial representation of the mapped migrations and seasonal ranges. This data release provides the means for ungulate migrations to be mapped and...
Ungulate Migrations of the Western United States, Volume 3 Ungulate Migrations of the Western United States, Volume 3
This is the data archive for the publication Ungulate Migrations of the Western United States, Volume 3 (Kauffman et al. 2022) and includes the collection of GIS map files that are mapped and described in the report. These map files are meant to provide a common spatial representation of the mapped migrations. This data release provides the means for ungulate migrations to be mapped and...
Ungulate Migrations of the Western United States, Volume 2 Ungulate Migrations of the Western United States, Volume 2
This is the data archive for the publication Ungulate Migrations of the Western United States, Volume 2 (Kauffman et al. 2022) and includes the collection of GIS map files that are mapped and described in the report. These map files are meant to provide a common spatial representation of the mapped migrations. This data release provides the means for ungulate migrations to be mapped and...
Ungulate migrations of the Western United States, volume 6 Ungulate migrations of the Western United States, volume 6
This report, volume 6 in the “Ungulate Migrations of the Western United States” report series, showcases the migrations of 23 ungulate herds in the Western United States. The report series is produced by the Corridor Mapping Team (CMT). Led by the U.S. Geological Survey, the CMT is a collaboration among 11 State agencies, as well as regional and Federal partners, and an expanding number...
Authors
Matthew J. Kauffman, Blake Lowrey, Jennifer L. McKee, Chloe J. Beaupre, Jeffrey Beck, Jon Beckmann, Scott Bergen, Joel Berger, Regan Berkley, Nathan Borg, Peyton Carl, Michelle Cowardin, Sarah Dewey, Katie M. Dugger, Amy Ehrhart, Jessica Fort, Eric Freeman, Ian Freeman, Emily R. Gelzer, David German, Jacob Gray, Evan Greenspan, Zach Gregory, Emily Hagler, Makeda Hanson, Valerie D. Hinojoza-Rood, Pat Hnilicka, Nick Jaffe, Andrew F. Jakes, Aran Johnson, Jaron T. Kolek, Art Lawson, Zach Lockyer, Daryl Lutz, Cody McKee, Jane McKeever, Jerod Merkle, Matthew A. Mumma, Dennis Newman, Erika Peckham, Jill E. Randall, Tempe Regan, Adele K. Reinking, Robert Ritson, William J. Rudd, Brianna M. Russo, Hall Sawyer, Cody Schroeder, Brandon Scurlock, Jeff Short, Bret Stansberry, Erik Steiner, Alethea Steingisser, Tom Stephenson, Eric VanNatta, Cody F. Wallace, Brad Weinmeister, Don Whittaker, Tatjana Woody, Sean Yancey
Seasonal migrations and other movements Seasonal migrations and other movements
In the past 25 years new information has been obtained on the migrations and movements of mountain sheep (bighorn [Ovis canadensis], thinhorn [Ovis dalli]). This chapter provides a comprehensive overview of mountain sheep migration and other movements across their broad distribution in western North America. Across the range of mountain sheep, migrations and other seasonal movements...
Authors
Blake Lowrey
Expression and mechanisms of behavioral plasticity in large mammals Expression and mechanisms of behavioral plasticity in large mammals
Behavioral plasticity, the alteration of behavior in response to stimuli, is becoming increasingly important in the context of human-induced rapid environmental change. Theoretical and empirical studies suggest that the expression and magnitude of behavioral plasticity are likely facilitated or constrained primarily by two factors: environmental variation and endogenous traits such as...
Authors
Rebecca R. Thomas-Kuzilik, Justine A. Becker, Jeffrey L. Beck, Justin G. Clapp, Alyson B. Courtemanch, Gary L. Fralick, Chris Geremia, L. Embere Hall, Matthew J. Kauffman, Blake Lowrey, Matthew C. Metz, Hollie M. Miyasaki, Kevin L. Monteith, Anna C. Ortega, Hall Sawyer, Douglas W. Smith, Erin E. Stahler, Daniel R. Stahler, Tana L. Verzuh, Jerod A. Merkle
Ungulate migrations of the Western United States, volume 5 Ungulate migrations of the Western United States, volume 5
Many ungulates migrate between distinct summer and winter ranges to take advantage of spatially and temporally variable food sources and avoid threats such as predators and deep snow. In 2018, the U.S. Department of the Interior established Secretarial Order 3362, which provided Federal support to expand existing research efforts to study ungulate populations and conserve their...
Authors
Matthew J. Kauffman, Blake Lowrey, Jennifer L. McKee, Travis Allen, Chloe J. Beaupre, Jeffrey L. Beck, Scott Bergen, Justin Binfet, Shelly Blair, James W. Cain, Peyton Carl, Todd Cornish, Michelle Cowardin, Rachel Curtis, Melia DeVivo, Jennifer Diamond, Katie M. Dugger, Orrin Duvuvuei, C.J. Ellingwood, Darby Finely, Jessica Fort, Eric Freeman, Ian Freeman, Jeff Gagnon, Emily R. Gelzer, Jacob Gray, Evan Greenspan, Curtis Hendricks, Valerie D. Hinojoza-Rood, Matthew Jeffress, Carolyn A. Kyle, Zack Lockyer, Cody McKee, Jerod Merkle, Jerrod Merrell, Matthew A. Mumma, Jake Powell, Craig Reddell, Adele K. Reinking, Robert Ritson, Sierra Robatcek, Benjamin S. Robb, Brianna M. Russo, Hall Sawyer, Cody Schroeder, Elissa Slezak, Scott Sprague, Erik Steiner, Alethea Steingisser, Tom Stephenson, Nicole Tatman, Kaitlyn L. Taylor, Don Whittaker, Travis Zaffarano
Estimating ungulate migration corridors from sparse movement data Estimating ungulate migration corridors from sparse movement data
Many ungulates migrate between distinct summer and winter ranges, and identifying, mapping, and conserving these migration corridors have become a focus of local, regional, and global conservation efforts. Brownian bridge movement models (BBMMs) are commonly used to empirically identify these seasonal migration corridors; however, they require location data sampled at relatively frequent...
Authors
Jennifer L. McKee, Julien Fattebert, Ellen O. Aikens, Jodi Berg, Scott Bergen, Eric K. Cole, Holly E. Copeland, Alyson B. Courtemanch, Sarah Dewey, Mark Hurley, Blake Lowrey, Jerod A. Merkle, Arthur D. Middleton, Tristan A. Nuñez, Hall Sawyer, Matthew J. Kauffman
Infection–nutrition feedbacks: Fat supports pathogen clearance but pathogens reduce fat in a wild mammal Infection–nutrition feedbacks: Fat supports pathogen clearance but pathogens reduce fat in a wild mammal
Though far less obvious than direct effects (clinical disease or mortality), the indirect influences of pathogens are difficult to estimate but may hold fitness consequences. Here, we disentangle the directional relationships between infection and energetic reserves, evaluating the hypotheses that energetic reserves influence infection status of the host and that infection elicits costs...
Authors
Rachel A. Smiley, Brittany L. Wagler, William H. Edwards, Jessica Jennings-Gaines, Katie Luukkonen, Kara Robbins, Marguerite Johnson, Alyson B. Courtemanch, Tony W. Mong, Daryl Lutz, Douglas E. McWhirter, Jennifer L. Malmberg, Blake Lowrey, Kevin L. Monteith
Western Migrations Western Migrations
The Western Migrations web application uses an interactive map to foster exploration of detailed migration routes, stopovers, and winter ranges across the West. Filter the data by species, state, specific herds, or land ownership, including Federal and Tribal lands, to focus on the areas and animals most relevant to your work or interests.