Don Hickey finishes installing ocean chemistry monitoring equipment on Sombrero Reef, Florida Keys.
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USGS Coral Reef Researcher
Don Hickey finishes installing ocean chemistry monitoring equipment on Sombrero Reef, Florida Keys.
Souris River
The Souris River in July.
The Souris River in July.
Deer Tick Nymph
Ticks spread the widest variety of diseases that are harmful to humans, including Lyme disease. This is an image of a blacklegged (deer) tick nymph.
Ticks spread the widest variety of diseases that are harmful to humans, including Lyme disease. This is an image of a blacklegged (deer) tick nymph.
Settings Sun and Shadows Along the North Fork Virgin River, Zion National Park, UT
Settings Sun and Shadows Along the North Fork Virgin River, Zion National Park, UTPhoto taken in Zion National Park near the Weeping Wall. The USGS gage is in the Park.
Settings Sun and Shadows Along the North Fork Virgin River, Zion National Park, UT
Settings Sun and Shadows Along the North Fork Virgin River, Zion National Park, UTPhoto taken in Zion National Park near the Weeping Wall. The USGS gage is in the Park.
Cliffs Above the North Fork Virgin River, Zion National Park, UT
Cliffs Above the North Fork Virgin River, Zion National Park, UTPhoto taken in Zion National Park near the Weeping Wall. The USGS maintains a gage in the Park.
Cliffs Above the North Fork Virgin River, Zion National Park, UT
Cliffs Above the North Fork Virgin River, Zion National Park, UTPhoto taken in Zion National Park near the Weeping Wall. The USGS maintains a gage in the Park.
Scientist Captures thermal images of the Redoubt Lava Dome from Helicopter.
Scientist Captures thermal images of the Redoubt Lava Dome from Helicopter.Kate Bull using a FLIR camera out the open door of an A-Star helicopter with the Redoubt summit and lava dome visible.
Scientist Captures thermal images of the Redoubt Lava Dome from Helicopter.
Scientist Captures thermal images of the Redoubt Lava Dome from Helicopter.Kate Bull using a FLIR camera out the open door of an A-Star helicopter with the Redoubt summit and lava dome visible.
California Cliffs and Coastline
Colorful vegetated clifftop near Half Moon Bay, California.
Colorful vegetated clifftop near Half Moon Bay, California.
Coral Calcification Monitoring Stations
Don Hickey tightens a bolt on a coral calcification monitoring station. Corals are being monitored for growth and sampled for climate proxy indicators (isotopes, elemental ratios).
Don Hickey tightens a bolt on a coral calcification monitoring station. Corals are being monitored for growth and sampled for climate proxy indicators (isotopes, elemental ratios).
Mapleleaf Mussel
Mapleleaf mussel, Quadrula quadrula, collected from the Great Lakes region of Canada.
Mapleleaf mussel, Quadrula quadrula, collected from the Great Lakes region of Canada.
Suburban Growth
A dense suburban neighborhood located north of Cincinnati, Ohio. The conversion of forest, agriculture, and grasslands to development can change hydrology at local and regional scales, alter wildlife habitat, and affect local weather patterns.
A dense suburban neighborhood located north of Cincinnati, Ohio. The conversion of forest, agriculture, and grasslands to development can change hydrology at local and regional scales, alter wildlife habitat, and affect local weather patterns.
Red River of the North
Red River of the North at Grand Forks, North Dakota.
Red River of the North at Grand Forks, North Dakota.
Summer Day on Agassiz National Wildlife Refuge, Minnesota
Summer Day on Agassiz National Wildlife Refuge, MinnesotaA1 Upstream Channel above Mud River Pool on Agassiz National Wildlife Refuge, Minnesota.
Summer Day on Agassiz National Wildlife Refuge, Minnesota
Summer Day on Agassiz National Wildlife Refuge, MinnesotaA1 Upstream Channel above Mud River Pool on Agassiz National Wildlife Refuge, Minnesota.
Agapostemon Splendens "Sweat Bee"
A male Agapostomen splendens: A bee of sandy areas also known as the "sweat bee."
A male Agapostomen splendens: A bee of sandy areas also known as the "sweat bee."
Rhizophora
A large red mangrove near the Shark River in Everglades National Park.
A large red mangrove near the Shark River in Everglades National Park.
Summer Day in North Dakota
A summer day in North Dakota on the Knife River near Golden Vally, North Dakota.
A summer day in North Dakota on the Knife River near Golden Vally, North Dakota.
Summer Day in North Dakota
A summer day in North Dakota on the Little Muddy River below Cow Creek near Williston.
A summer day in North Dakota on the Little Muddy River below Cow Creek near Williston.
U.S. Fish and Wildlife Service Vessel Seen Through Bird Flock
U.S. Fish and Wildlife Service Vessel Seen Through Bird FlockU.S. Fish and Wildlife Service vessel Tiglax off of Kasatochi Island, Alaska, as seen through a flock of Crested Auklets.
U.S. Fish and Wildlife Service Vessel Seen Through Bird Flock
U.S. Fish and Wildlife Service Vessel Seen Through Bird FlockU.S. Fish and Wildlife Service vessel Tiglax off of Kasatochi Island, Alaska, as seen through a flock of Crested Auklets.
California Brown Pelican
Birds found in and around the Salton Sea, California.
Birds found in and around the Salton Sea, California.
Water Under the Bridge
Water flowing under a bridge on the Little Muddy River below Cow Creek near Williston, North Dakota.
Water flowing under a bridge on the Little Muddy River below Cow Creek near Williston, North Dakota.
Scientists Preparing to Radio-Tag Walruses
Scientists prepare to radio-tag walruses in the Chukchi sea to track movements as sea ice is reduced in the region.
Scientists prepare to radio-tag walruses in the Chukchi sea to track movements as sea ice is reduced in the region.
Colorado River Looking Upstream From the Navajo Bridge
Colorado River Looking Upstream From the Navajo BridgeLate afternoon view of the Colorado River in Marble Canyon looking upstream from the Navajo Bridge, near Lees Ferry, AZ.
Colorado River Looking Upstream From the Navajo Bridge
Colorado River Looking Upstream From the Navajo BridgeLate afternoon view of the Colorado River in Marble Canyon looking upstream from the Navajo Bridge, near Lees Ferry, AZ.