Bat, bird, and insect activity can be monitored with pairs of thermal-imaging cameras mounted on the wind turbines, and automatically recorded to a computer inside the base of the turbine.
Paul Cryan, PhD (Former Employee)
Science and Products
North American Bat Monitoring Program (NABat)
New Mexico Landscapes Field Station: Wildlife Research
Population Assessments of the Pacific Sheath-Tailed Bat and Mariana Swiftlet
Developing online integrated data visualization tools for WNS and NABat
Ecology of Wildlife Disease
Species Conservation
Non-invasive Surveillance of Bat Hibernacula to Investigate Potential Behavioral Causes of Mortality Associated with White Nose Syndrome
Ecological Investigations of White-Nose Syndrome in Bats
White-Nose Syndrome Threatens the Survival of Hibernating Bats in North America
Bat Fatalities at Wind Turbines—Investigating the Causes and Consequences
Bat Species of Concern: An Ecological Synthesis for Resource Managers
Animal Migration and Spatial Subsidies: Establishing a Framework for Conservation Markets
Guam, Mariana swiftlet nest behavior, 2023-2024 Guam, Mariana swiftlet nest behavior, 2023-2024
Supplemental Results from: Using mobile acoustic monitoring and false-positive N-mixture models to estimate bat abundance and population trends Supplemental Results from: Using mobile acoustic monitoring and false-positive N-mixture models to estimate bat abundance and population trends
Guam, Post-storm Mariana swiftlet colony size and nest counts, 2023 Guam, Post-storm Mariana swiftlet colony size and nest counts, 2023
Summer Roost Site Suitability Analyses of Four North American Bat Species in the Eastern United States Summer Roost Site Suitability Analyses of Four North American Bat Species in the Eastern United States
Guam, Mariana swiftlet counts, 2019-2023 Guam, Mariana swiftlet counts, 2019-2023
Gene annotations for the hoary bat (Lasiurus [Aeorestes] cinereus) and alignments with other bat gene sets for evolutionary analysis Gene annotations for the hoary bat (Lasiurus [Aeorestes] cinereus) and alignments with other bat gene sets for evolutionary analysis
Bat, insect, and bird activity at a wind turbine in Colorado experimentally illuminated with ultraviolet light at night in 2019 to try and deter bats Bat, insect, and bird activity at a wind turbine in Colorado experimentally illuminated with ultraviolet light at night in 2019 to try and deter bats
Genetic variation in hoary bats (Lasiurus cinereus) assessed from archived samples Genetic variation in hoary bats (Lasiurus cinereus) assessed from archived samples
Data Release: Possibility for reverse zoonotic transmission of SARS-CoV-2 to free-ranging wildlife: a case study of bats Data Release: Possibility for reverse zoonotic transmission of SARS-CoV-2 to free-ranging wildlife: a case study of bats
Hawaii Island Hoary Bat Acoustic and Visual Surveys 2014 Hawaii Island Hoary Bat Acoustic and Visual Surveys 2014
Radio telemetry data on nighttime movements of two species of migratory nectar-feeding bats (Leptonycteris) in Hidalgo County, New Mexico, late-summer 2004 and 2005 Radio telemetry data on nighttime movements of two species of migratory nectar-feeding bats (Leptonycteris) in Hidalgo County, New Mexico, late-summer 2004 and 2005
Long-term video surveillance and automated analyses of hibernating bats in Virginia and Indiana, winters 2011-2014. Long-term video surveillance and automated analyses of hibernating bats in Virginia and Indiana, winters 2011-2014.
Bat, bird, and insect activity can be monitored with pairs of thermal-imaging cameras mounted on the wind turbines, and automatically recorded to a computer inside the base of the turbine.
A little brown bat (Myotis lucifugus) with white-nose syndrome hibernating in a Virginia cave during late spring of 2016.
A little brown bat (Myotis lucifugus) with white-nose syndrome hibernating in a Virginia cave during late spring of 2016.
Wind turbines and a rainbow towering high above trees in Hawaii
Wind turbines and a rainbow towering high above trees in HawaiiWind turbines and a rainbow towering high above trees on an island in Hawaii. Paul Cryan, USGS, Fort Collins Science Center.
Wind turbines and a rainbow towering high above trees in Hawaii
Wind turbines and a rainbow towering high above trees in HawaiiWind turbines and a rainbow towering high above trees on an island in Hawaii. Paul Cryan, USGS, Fort Collins Science Center.
Insect sampling at IvanpahSolar Electric Generating System in CA
Insect sampling at IvanpahSolar Electric Generating System in CAUSGS Scientist, Ernie Valdez, sampling for insects at Ivanpah Solar Electric Generating System in southern California.
Insect sampling at IvanpahSolar Electric Generating System in CA
Insect sampling at IvanpahSolar Electric Generating System in CAUSGS Scientist, Ernie Valdez, sampling for insects at Ivanpah Solar Electric Generating System in southern California.
This is an image of a wind turbine in a corn field taken in Wyoming in the summer of 2014.
This is an image of a wind turbine in a corn field taken in Wyoming in the summer of 2014.
Mexican free-tailed bats that emerged from Bracken Cave in Texas fly among the trees in the early evening sky.
Mexican free-tailed bats that emerged from Bracken Cave in Texas fly among the trees in the early evening sky.
A field of wind turbines in Wyoming with a storm rolling in.
A field of wind turbines in Wyoming with a storm rolling in.
Wheat field wind turbines in Wyoming.
Wheat field wind turbines in Wyoming.
Wind turbines working in Wyoming.
Wind turbines working in Wyoming.
A healthy, banded little brown bat hangs out in a cave. Photo credit: Paul Cryan, USGS.
A healthy, banded little brown bat hangs out in a cave. Photo credit: Paul Cryan, USGS.
Wind turbines around a farm house
Insect-eating Brazilian Free-Tailed bats (Tadarida brasiliensis) provide a great pest-control service to agriculture and natural ecosystems.
Insect-eating Brazilian Free-Tailed bats (Tadarida brasiliensis) provide a great pest-control service to agriculture and natural ecosystems.
Wind turbine on farm land next to a dilapidated barn
Wind turbine on farm land next to a dilapidated barnWind turbine next to a dilapidated barn
Wind turbine on farm land next to a dilapidated barn
Wind turbine on farm land next to a dilapidated barnWind turbine next to a dilapidated barn
Two wind turbines in a New York forest.
Two wind turbines in a New York forest.
Two wind turbines from side on clear day.
Two wind turbines from side on clear day.
Assessing potential collateral effects on amphibians from insecticide applications for flea control and plague mitigation Assessing potential collateral effects on amphibians from insecticide applications for flea control and plague mitigation
Using mobile acoustic monitoring and false-positive N-mixture models to estimate bat abundance and population trends Using mobile acoustic monitoring and false-positive N-mixture models to estimate bat abundance and population trends
Post-Typhoon Mawar population counts of the endangered yǻyaguak (Mariana swiftlet) on Guam Post-Typhoon Mawar population counts of the endangered yǻyaguak (Mariana swiftlet) on Guam
Videographic monitoring at caves to estimate population size of the endangered yǻyaguak (Mariana swiftlet) on Guam Videographic monitoring at caves to estimate population size of the endangered yǻyaguak (Mariana swiftlet) on Guam
NABat ML: Utilizing deep learning to enable crowdsourced development of automated, scalable solutions for documenting North American bat populations NABat ML: Utilizing deep learning to enable crowdsourced development of automated, scalable solutions for documenting North American bat populations
Positively selected genes in the hoary bat (Lasiurus cinereus) lineage: Prominence of thymus expression, immune and metabolic function, and regions of ancient synteny Positively selected genes in the hoary bat (Lasiurus cinereus) lineage: Prominence of thymus expression, immune and metabolic function, and regions of ancient synteny
Influencing activity of bats by dimly lighting wind turbine surfaces with ultraviolet light Influencing activity of bats by dimly lighting wind turbine surfaces with ultraviolet light
Historical effective population size of North American hoary bat (Lasiurus cinereus) and challenges to estimating trends in contemporary effective breeding population size from archived samples Historical effective population size of North American hoary bat (Lasiurus cinereus) and challenges to estimating trends in contemporary effective breeding population size from archived samples
Behavioral patterns of bats at a wind turbine confirm seasonality of fatality risk Behavioral patterns of bats at a wind turbine confirm seasonality of fatality risk
Possibility for reverse zoonotic transmission of SARS-CoV-2 to free-ranging wildlife: A case study of bats Possibility for reverse zoonotic transmission of SARS-CoV-2 to free-ranging wildlife: A case study of bats
Assessing the risks posed by SARS-CoV-2 in and via North American bats — Decision framing and rapid risk assessment Assessing the risks posed by SARS-CoV-2 in and via North American bats — Decision framing and rapid risk assessment
Hawaiian hoary bat (Lasiurus cinereus semotus) behavior at wind turbines on Maui Hawaiian hoary bat (Lasiurus cinereus semotus) behavior at wind turbines on Maui
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Ecosystems-nabat-FPabund: software for fitting false-positive N-mixture models using NABat mobile acoustic data (version 1.0.0) Ecosystems-nabat-FPabund: software for fitting false-positive N-mixture models using NABat mobile acoustic data (version 1.0.0)
Science and Products
North American Bat Monitoring Program (NABat)
New Mexico Landscapes Field Station: Wildlife Research
Population Assessments of the Pacific Sheath-Tailed Bat and Mariana Swiftlet
Developing online integrated data visualization tools for WNS and NABat
Ecology of Wildlife Disease
Species Conservation
Non-invasive Surveillance of Bat Hibernacula to Investigate Potential Behavioral Causes of Mortality Associated with White Nose Syndrome
Ecological Investigations of White-Nose Syndrome in Bats
White-Nose Syndrome Threatens the Survival of Hibernating Bats in North America
Bat Fatalities at Wind Turbines—Investigating the Causes and Consequences
Bat Species of Concern: An Ecological Synthesis for Resource Managers
Animal Migration and Spatial Subsidies: Establishing a Framework for Conservation Markets
Guam, Mariana swiftlet nest behavior, 2023-2024 Guam, Mariana swiftlet nest behavior, 2023-2024
Supplemental Results from: Using mobile acoustic monitoring and false-positive N-mixture models to estimate bat abundance and population trends Supplemental Results from: Using mobile acoustic monitoring and false-positive N-mixture models to estimate bat abundance and population trends
Guam, Post-storm Mariana swiftlet colony size and nest counts, 2023 Guam, Post-storm Mariana swiftlet colony size and nest counts, 2023
Summer Roost Site Suitability Analyses of Four North American Bat Species in the Eastern United States Summer Roost Site Suitability Analyses of Four North American Bat Species in the Eastern United States
Guam, Mariana swiftlet counts, 2019-2023 Guam, Mariana swiftlet counts, 2019-2023
Gene annotations for the hoary bat (Lasiurus [Aeorestes] cinereus) and alignments with other bat gene sets for evolutionary analysis Gene annotations for the hoary bat (Lasiurus [Aeorestes] cinereus) and alignments with other bat gene sets for evolutionary analysis
Bat, insect, and bird activity at a wind turbine in Colorado experimentally illuminated with ultraviolet light at night in 2019 to try and deter bats Bat, insect, and bird activity at a wind turbine in Colorado experimentally illuminated with ultraviolet light at night in 2019 to try and deter bats
Genetic variation in hoary bats (Lasiurus cinereus) assessed from archived samples Genetic variation in hoary bats (Lasiurus cinereus) assessed from archived samples
Data Release: Possibility for reverse zoonotic transmission of SARS-CoV-2 to free-ranging wildlife: a case study of bats Data Release: Possibility for reverse zoonotic transmission of SARS-CoV-2 to free-ranging wildlife: a case study of bats
Hawaii Island Hoary Bat Acoustic and Visual Surveys 2014 Hawaii Island Hoary Bat Acoustic and Visual Surveys 2014
Radio telemetry data on nighttime movements of two species of migratory nectar-feeding bats (Leptonycteris) in Hidalgo County, New Mexico, late-summer 2004 and 2005 Radio telemetry data on nighttime movements of two species of migratory nectar-feeding bats (Leptonycteris) in Hidalgo County, New Mexico, late-summer 2004 and 2005
Long-term video surveillance and automated analyses of hibernating bats in Virginia and Indiana, winters 2011-2014. Long-term video surveillance and automated analyses of hibernating bats in Virginia and Indiana, winters 2011-2014.
Bat, bird, and insect activity can be monitored with pairs of thermal-imaging cameras mounted on the wind turbines, and automatically recorded to a computer inside the base of the turbine.
Bat, bird, and insect activity can be monitored with pairs of thermal-imaging cameras mounted on the wind turbines, and automatically recorded to a computer inside the base of the turbine.
A little brown bat (Myotis lucifugus) with white-nose syndrome hibernating in a Virginia cave during late spring of 2016.
A little brown bat (Myotis lucifugus) with white-nose syndrome hibernating in a Virginia cave during late spring of 2016.
Wind turbines and a rainbow towering high above trees in Hawaii
Wind turbines and a rainbow towering high above trees in HawaiiWind turbines and a rainbow towering high above trees on an island in Hawaii. Paul Cryan, USGS, Fort Collins Science Center.
Wind turbines and a rainbow towering high above trees in Hawaii
Wind turbines and a rainbow towering high above trees in HawaiiWind turbines and a rainbow towering high above trees on an island in Hawaii. Paul Cryan, USGS, Fort Collins Science Center.
Insect sampling at IvanpahSolar Electric Generating System in CA
Insect sampling at IvanpahSolar Electric Generating System in CAUSGS Scientist, Ernie Valdez, sampling for insects at Ivanpah Solar Electric Generating System in southern California.
Insect sampling at IvanpahSolar Electric Generating System in CA
Insect sampling at IvanpahSolar Electric Generating System in CAUSGS Scientist, Ernie Valdez, sampling for insects at Ivanpah Solar Electric Generating System in southern California.
This is an image of a wind turbine in a corn field taken in Wyoming in the summer of 2014.
This is an image of a wind turbine in a corn field taken in Wyoming in the summer of 2014.
Mexican free-tailed bats that emerged from Bracken Cave in Texas fly among the trees in the early evening sky.
Mexican free-tailed bats that emerged from Bracken Cave in Texas fly among the trees in the early evening sky.
A field of wind turbines in Wyoming with a storm rolling in.
A field of wind turbines in Wyoming with a storm rolling in.
Wheat field wind turbines in Wyoming.
Wheat field wind turbines in Wyoming.
Wind turbines working in Wyoming.
Wind turbines working in Wyoming.
A healthy, banded little brown bat hangs out in a cave. Photo credit: Paul Cryan, USGS.
A healthy, banded little brown bat hangs out in a cave. Photo credit: Paul Cryan, USGS.
Wind turbines around a farm house
Insect-eating Brazilian Free-Tailed bats (Tadarida brasiliensis) provide a great pest-control service to agriculture and natural ecosystems.
Insect-eating Brazilian Free-Tailed bats (Tadarida brasiliensis) provide a great pest-control service to agriculture and natural ecosystems.
Wind turbine on farm land next to a dilapidated barn
Wind turbine on farm land next to a dilapidated barnWind turbine next to a dilapidated barn
Wind turbine on farm land next to a dilapidated barn
Wind turbine on farm land next to a dilapidated barnWind turbine next to a dilapidated barn
Two wind turbines in a New York forest.
Two wind turbines in a New York forest.
Two wind turbines from side on clear day.
Two wind turbines from side on clear day.
Assessing potential collateral effects on amphibians from insecticide applications for flea control and plague mitigation Assessing potential collateral effects on amphibians from insecticide applications for flea control and plague mitigation
Using mobile acoustic monitoring and false-positive N-mixture models to estimate bat abundance and population trends Using mobile acoustic monitoring and false-positive N-mixture models to estimate bat abundance and population trends
Post-Typhoon Mawar population counts of the endangered yǻyaguak (Mariana swiftlet) on Guam Post-Typhoon Mawar population counts of the endangered yǻyaguak (Mariana swiftlet) on Guam
Videographic monitoring at caves to estimate population size of the endangered yǻyaguak (Mariana swiftlet) on Guam Videographic monitoring at caves to estimate population size of the endangered yǻyaguak (Mariana swiftlet) on Guam
NABat ML: Utilizing deep learning to enable crowdsourced development of automated, scalable solutions for documenting North American bat populations NABat ML: Utilizing deep learning to enable crowdsourced development of automated, scalable solutions for documenting North American bat populations
Positively selected genes in the hoary bat (Lasiurus cinereus) lineage: Prominence of thymus expression, immune and metabolic function, and regions of ancient synteny Positively selected genes in the hoary bat (Lasiurus cinereus) lineage: Prominence of thymus expression, immune and metabolic function, and regions of ancient synteny
Influencing activity of bats by dimly lighting wind turbine surfaces with ultraviolet light Influencing activity of bats by dimly lighting wind turbine surfaces with ultraviolet light
Historical effective population size of North American hoary bat (Lasiurus cinereus) and challenges to estimating trends in contemporary effective breeding population size from archived samples Historical effective population size of North American hoary bat (Lasiurus cinereus) and challenges to estimating trends in contemporary effective breeding population size from archived samples
Behavioral patterns of bats at a wind turbine confirm seasonality of fatality risk Behavioral patterns of bats at a wind turbine confirm seasonality of fatality risk
Possibility for reverse zoonotic transmission of SARS-CoV-2 to free-ranging wildlife: A case study of bats Possibility for reverse zoonotic transmission of SARS-CoV-2 to free-ranging wildlife: A case study of bats
Assessing the risks posed by SARS-CoV-2 in and via North American bats — Decision framing and rapid risk assessment Assessing the risks posed by SARS-CoV-2 in and via North American bats — Decision framing and rapid risk assessment
Hawaiian hoary bat (Lasiurus cinereus semotus) behavior at wind turbines on Maui Hawaiian hoary bat (Lasiurus cinereus semotus) behavior at wind turbines on Maui
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.