Photo of three bald eagles captured on a game camera. There are two adults with a juvenile.
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Three bald eagles
Photo of three bald eagles captured on a game camera. There are two adults with a juvenile.
Migratory pathway of glaucous gulls: Ahlstrom and others, 2021
Migratory pathway of glaucous gulls: Ahlstrom and others, 2021Map of the migratory pathway of glaucous gulls from Alaska to Russia and down Pacific US coastline
Migratory pathway of glaucous gulls: Ahlstrom and others, 2021
Migratory pathway of glaucous gulls: Ahlstrom and others, 2021Map of the migratory pathway of glaucous gulls from Alaska to Russia and down Pacific US coastline
Productivity of Black Oystercatchers in Southwest Alaska
Productivity of Black Oystercatchers in Southwest AlaskaThe black oystercatcher, a keystone species in nearshore ecosystems, plays an important role in structuring nearshore systems and is highly susceptible to human disturbance. Current inventory and monitoring efforts may not adequately address the information needs for estimating long-term trends for this species.
Productivity of Black Oystercatchers in Southwest Alaska
Productivity of Black Oystercatchers in Southwest AlaskaThe black oystercatcher, a keystone species in nearshore ecosystems, plays an important role in structuring nearshore systems and is highly susceptible to human disturbance. Current inventory and monitoring efforts may not adequately address the information needs for estimating long-term trends for this species.
Standard Fish Sampling Techniques
Examining environmental deoxyribonucleic acid (eDNA) in water samples has demonstrated promise for identifying fish species present in water bodies. However, whether or not this same approach can be used to assess relative abundance, biomass, and species composition in large (greater than [>] 200-hectare) waterbodies is unclear.
Examining environmental deoxyribonucleic acid (eDNA) in water samples has demonstrated promise for identifying fish species present in water bodies. However, whether or not this same approach can be used to assess relative abundance, biomass, and species composition in large (greater than [>] 200-hectare) waterbodies is unclear.
Two bull elk with their antlers locked
Two bull elk standing on the snow in the National Elk Refuge with their antler locked.
Two bull elk standing on the snow in the National Elk Refuge with their antler locked.
Fires transforming Sonoran Desert
Restoring areas infested with invasive species that carry catastrophic fire is a top priority for the Restoration Assessment and Monitoring Program for the Southest (RAMPS) and our partners.
Restoring areas infested with invasive species that carry catastrophic fire is a top priority for the Restoration Assessment and Monitoring Program for the Southest (RAMPS) and our partners.
White River spinedace
White River spinedace. Photo taken Wayne E. Kirch Wildlife Management Area, Lund, NV.
White River spinedace. Photo taken Wayne E. Kirch Wildlife Management Area, Lund, NV.
USGS passive integrated transponder (PIT) detection antenna
USGS passive integrated transponder (PIT) detection antennaPassive integrated transponder detection antenna located in the Flag Springs Complex in eastern Nevada. This is the only place on earth where White River spinedace still exist.
USGS passive integrated transponder (PIT) detection antenna
USGS passive integrated transponder (PIT) detection antennaPassive integrated transponder detection antenna located in the Flag Springs Complex in eastern Nevada. This is the only place on earth where White River spinedace still exist.
White River spinedace
White River spinedace. Photo taken by Summer Burdick, USGS, Klamath Falls Field Station.
White River spinedace. Photo taken by Summer Burdick, USGS, Klamath Falls Field Station.
White River desert sucker
White River desert sucker. Photo taken Wayne E. Kirch Wildlife Management Area, Lund, NV.
White River desert sucker. Photo taken Wayne E. Kirch Wildlife Management Area, Lund, NV.
White River spinedace
White River spinedace. Photo taken Wayne E. Kirch Wildlife Management Area, Lund, NV.
White River spinedace. Photo taken Wayne E. Kirch Wildlife Management Area, Lund, NV.
Department of the Interior Bison Conservation Initiative 2020
Department of the Interior Bison Conservation Initiative 2020Bison
Since the late 19th century, the Department of the Interior, in collaboration with others, has been a leader in shared conservation stewardship of bison and manages...
Department of the Interior Bison Conservation Initiative 2020
Department of the Interior Bison Conservation Initiative 2020Bison
Since the late 19th century, the Department of the Interior, in collaboration with others, has been a leader in shared conservation stewardship of bison and manages...
Chiropterologist coloring page
This is a high resolution image for the whiteboard series Chiropterologist coloring page.
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This is a high resolution image for the whiteboard series Chiropterologist coloring page.
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Wind turbines in California
Wind turbines at the San Gorgonio Pass Wind Resource Area north of Palm Springs in California.
Wind turbines at the San Gorgonio Pass Wind Resource Area north of Palm Springs in California.
IMG_7664-1.jpeg
Dr. DiRenzo's research program focuses on unifying ecological and evolutionary theory to address fundamental questions in ecology using field, experimental, and quantitative approaches. She enjoys teaching graduate courses related to quantitative ecology, disease ecology, and population/community ecology.
Dr. DiRenzo's research program focuses on unifying ecological and evolutionary theory to address fundamental questions in ecology using field, experimental, and quantitative approaches. She enjoys teaching graduate courses related to quantitative ecology, disease ecology, and population/community ecology.
Graziella V. DiRenzo
Dr. DiRenzo joined the MA Cooperative Research Unit in Nov 2020, where she is the Assistant Unit Leader of Wildlife and adjunct faculty in the department of Environmental Conservation at the University of Massachusetts, Amherst. Dr.
Dr. DiRenzo joined the MA Cooperative Research Unit in Nov 2020, where she is the Assistant Unit Leader of Wildlife and adjunct faculty in the department of Environmental Conservation at the University of Massachusetts, Amherst. Dr.
Scientist holding brown treesnake
A USGS scientist holds an invasive brown treesnake.
A USGS scientist holds an invasive brown treesnake.
Measuring South Cascade Glacier
A scientist takes field notes on glacier mass change after measuring an ablation stake installed on the surface of South Cascade Glacier, Washington.
A scientist takes field notes on glacier mass change after measuring an ablation stake installed on the surface of South Cascade Glacier, Washington.
Sentinel Peak, Cascade Range at Sunset
Sunset illuminates Sentinel Peak in the Cascade Range above South Cascade Glacier. Bright white seasonal snow is visible along the upper right flank of the glacier and banded bare ice is exposed toward the glacier terminus.
Sunset illuminates Sentinel Peak in the Cascade Range above South Cascade Glacier. Bright white seasonal snow is visible along the upper right flank of the glacier and banded bare ice is exposed toward the glacier terminus.
I Am A Fire Ecologist - Coloring Page
This is a high resolution image for the whiteboard series I Am A Fire Ecologist - Coloring Page
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This is a high resolution image for the whiteboard series I Am A Fire Ecologist - Coloring Page
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Wild Black Carp
A black carp collected by USGS scientists from the Mississippi River. Credit: USGS.
A black carp collected by USGS scientists from the Mississippi River. Credit: USGS.