Flock of Snow Geese at Colusa National Wildlife Refuge
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Snow Geese at Colusa NWR
Flock of Snow Geese at Colusa National Wildlife Refuge
Flock of Greater White-fronted Geese at Colusa NWR
Flock of Greater White-fronted Geese at Colusa NWR
Flock of Greater White-fronted Geese at Colusa NWR
Greater White-fronted Geese at Colusa NWR
Flock of Greater White-fronted Geese at Colusa National Wildlife Refuge
Flock of Greater White-fronted Geese at Colusa National Wildlife Refuge
Sierra marten caught on camera using underpass in Sierra NF
A Sierra Marten (Martes caurina sierra) caught on wildlife camera in October 2019 passing beneath an elevated road segment built to study usage of the underpass by the Yosemite toad.
A Sierra Marten (Martes caurina sierra) caught on wildlife camera in October 2019 passing beneath an elevated road segment built to study usage of the underpass by the Yosemite toad.
Humboldt’s flying squirrel on wildlife camera
The photo features a Humboldt’s flying squirrel (Glaucomys oregonensis) caught on a wildlife camera. The camera was set up to study animal movement under a new road crossing structure known as the “toad road” in Sierra National Forest.
The photo features a Humboldt’s flying squirrel (Glaucomys oregonensis) caught on a wildlife camera. The camera was set up to study animal movement under a new road crossing structure known as the “toad road” in Sierra National Forest.
Histology of snake fungal disease
(A) Underneath the β-layer of the epidermis is an accumulation of hypereosinophilic necrotic debris. The remaining epidermis is extensively ulcerated.
(A) Underneath the β-layer of the epidermis is an accumulation of hypereosinophilic necrotic debris. The remaining epidermis is extensively ulcerated.
Thermal imaging for fire research
Use of thermal imaging helps researchers to understand the relationship of fuels and fire effects, Valles Caldera National Preserve, New Mexico, 2019.
Use of thermal imaging helps researchers to understand the relationship of fuels and fire effects, Valles Caldera National Preserve, New Mexico, 2019.
Black racer snake with snake fungal disease
Black Racer snake (A) The epidermis over much of the body, but cranially pronounced, has multifocal to coalescing dull white to pale gray foci. (B) Multiple scales around the head are thickened and roughened. (C) Ventrally, there are multiple dull white to grey foci of up to 8 mm size, occasionally with central indentations.
Black Racer snake (A) The epidermis over much of the body, but cranially pronounced, has multifocal to coalescing dull white to pale gray foci. (B) Multiple scales around the head are thickened and roughened. (C) Ventrally, there are multiple dull white to grey foci of up to 8 mm size, occasionally with central indentations.
20191009_163528 Mike F.
This picture shows MJF in Reston working with his team on work planning guidance for the scientists funded by the Ecosystems Mission Area, Environmental Health Program
This picture shows MJF in Reston working with his team on work planning guidance for the scientists funded by the Ecosystems Mission Area, Environmental Health Program
Sierra marten caught on camera
This Sierra Marten was caught on wildlife camera in October. The camera was set up to study animal movement under a new road crossing structure known as the “toad road” in Sierra National Forest. The Sierra marten (Martes caurina sierra) is a mammal in the weasel family about the size of a house cat.
This Sierra Marten was caught on wildlife camera in October. The camera was set up to study animal movement under a new road crossing structure known as the “toad road” in Sierra National Forest. The Sierra marten (Martes caurina sierra) is a mammal in the weasel family about the size of a house cat.
Adult Sage Thrasher waiting to deliver food to its nestlings.
Adult Sage Thrasher waiting to deliver food to its nestlings.
Adult Sage Thrasher waiting to deliver food to its nestlings.
Wild Black Carp
A commercially caught wild black carp from the Mississippi River. Credit: USGS.
A commercially caught wild black carp from the Mississippi River. Credit: USGS.
Cover of 2019 Energy and Wildlife Research report.
Cover of 2019 Energy and Wildlife Research report.
Cover of 2019 Energy and Wildlife Research report.
Great Basin rattlesnake held by snake tongs
Great Basin rattlesnake (Crotalus oreganus lutosus) held by snake tongs. The Great Basin rattlesnake is the only venomous snake in Idaho.
Great Basin rattlesnake (Crotalus oreganus lutosus) held by snake tongs. The Great Basin rattlesnake is the only venomous snake in Idaho.
Collecting a blood sample from a rattlesnake
Boise State University Master’s student Kristina Parker uses a syringe to collect blood from a Great Basin rattlesnake (Crotalus oreganus lutosus). The blood’s ribonucleic acid, or RNA will be analyzed to track genetic change in the snake from habitat disturbances. RNA, along with deoxyribonucleic acid – or DNA, are the molecules that carry genetic information.
Boise State University Master’s student Kristina Parker uses a syringe to collect blood from a Great Basin rattlesnake (Crotalus oreganus lutosus). The blood’s ribonucleic acid, or RNA will be analyzed to track genetic change in the snake from habitat disturbances. RNA, along with deoxyribonucleic acid – or DNA, are the molecules that carry genetic information.
Catching a rattlesnake with snake tongs
Boise State University Master’s student Kristina Parker and a volunteer use snake tongs to catch and hold down a rattlesnake.
Boise State University Master’s student Kristina Parker and a volunteer use snake tongs to catch and hold down a rattlesnake.
Carrying a tubed rattlesnake
Boise State University Master’s student Kristina Parker carries a Great Basin rattlesnake (Crotalus oreganus lutosus). The snake’s head is enclosed in a plastic tube to allow her to safely handle it during the biological sample collection process.
Boise State University Master’s student Kristina Parker carries a Great Basin rattlesnake (Crotalus oreganus lutosus). The snake’s head is enclosed in a plastic tube to allow her to safely handle it during the biological sample collection process.
Tubing a rattlesnake
A Great Basin rattlesnake (Crotalus oreganus lutosus) is coaxed into a plastic tube. This plastic tube allows researchers to safely handle the rattlesnake during biological sample collection.
A Great Basin rattlesnake (Crotalus oreganus lutosus) is coaxed into a plastic tube. This plastic tube allows researchers to safely handle the rattlesnake during biological sample collection.
USGS employee uses the alignment of mountains.
After hiking to the location of the historic photo, USGS employee, Lisa McKeon, uses the alignment of mountains and permanent features to compose the same shot as the original. Sometimes, determining the location can take a long time, requiring moving up and down a mountainside to find the exact spot.
After hiking to the location of the historic photo, USGS employee, Lisa McKeon, uses the alignment of mountains and permanent features to compose the same shot as the original. Sometimes, determining the location can take a long time, requiring moving up and down a mountainside to find the exact spot.
Ecosystems Mission Area Locations
Map of locations of Ecosystems Mission Area locations across the U.S. This map includes the USGS Regions and Department of Interior Unified Regions.
By
Map of locations of Ecosystems Mission Area locations across the U.S. This map includes the USGS Regions and Department of Interior Unified Regions.
By
USGS field biologist Andrea Mott displays a recently marked Tule Goose
USGS field biologist Andrea Mott displays a recently marked Tule White-fronted Goose.
USGS field biologist Andrea Mott displays a recently marked Tule White-fronted Goose.