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Northern cricket frog on wet leaves
Northern cricket frog on wet leaves
Northern cricket frog on wet leaves
Northern cricket frog on wet leaves

This Northern cricket frog (Acris crepitans) was encountered while conducting dipnet surveys in Prince William Forest Park in Triangle, VA. These amphibian surveys support NPS goals of monitoring amphibians throughout all parks in the National Capital Region Network.

This Northern cricket frog (Acris crepitans) was encountered while conducting dipnet surveys in Prince William Forest Park in Triangle, VA. These amphibian surveys support NPS goals of monitoring amphibians throughout all parks in the National Capital Region Network.

June 2021 "People" category winner Erick Hernandez USGS Natiave Bee Lab, Magicicada cassinii, super rare Blue eyed variant
Blue-eyed Cicada - Magicicada cassinii, super rare Blue eyed variant
Blue-eyed Cicada - Magicicada cassinii, super rare Blue eyed variant
Blue-eyed Cicada - Magicicada cassinii, super rare Blue eyed variant

June 2021 "People" category winner Erick Hernandez

USGS Natiave Bee Lab, Magicicada cassinii, super rare Blue eyed variant

the rare blue-eyed version of one of the periodical cicadas

June 2021 "People" category winner Erick Hernandez

USGS Natiave Bee Lab, Magicicada cassinii, super rare Blue eyed variant

the rare blue-eyed version of one of the periodical cicadas

Conductivity, water temperature, and water level gages in Bullskin Run, West Virginia.
Stream gages in Bullskin Run, West Virginia
Stream gages in Bullskin Run, West Virginia
Stream gages in Bullskin Run, West Virginia

Conductivity, water temperature, and water level gages in Bullskin Run, West Virginia. These gages are part of a regional study to understand how groundwater-surface water interactions affect fish habitat and thermal resiliency to climate change.

Conductivity, water temperature, and water level gages in Bullskin Run, West Virginia. These gages are part of a regional study to understand how groundwater-surface water interactions affect fish habitat and thermal resiliency to climate change.

Entrance to National Fish Health Research Lab in Kearneysville WV
Entrance to National Fish Health Research Lab in Kearneysville WV
Entrance to National Fish Health Research Lab in Kearneysville WV
Entrance to National Fish Health Research Lab in Kearneysville WV

Entrance to the National Fish Health Research Lab-EESC-Leetown campus-Kearneysville WV

Two scientists wearing masks stand at a lab bench pipetting specimen tubes.
smallmouth bass plasma extraction
smallmouth bass plasma extraction
smallmouth bass plasma extraction

Dr. Vicki Blazer and Dr. Heather Walsh extracting plasma from smallmouth bass sampled from the South Branch Potomac River.  The plasma will be used for the quantification of vitellogenin (an egg yolk precursor protein used as a biomarker of endocrine disruption in male fish).    

Dr. Vicki Blazer and Dr. Heather Walsh extracting plasma from smallmouth bass sampled from the South Branch Potomac River.  The plasma will be used for the quantification of vitellogenin (an egg yolk precursor protein used as a biomarker of endocrine disruption in male fish).    

A graduate student is holding a common eider while the duck received a gas anesthetic.
Anesthetizing a Common Eider to implant satellite tag
Anesthetizing a Common Eider to implant satellite tag
Anesthetizing a Common Eider to implant satellite tag

A female Common Eider is being held by graduate student Tori Mezebish while the duck is being anesthetized for surgery to implant a small satellite transmitter to track the duck during subsequent breeding years.

A female Common Eider is being held by graduate student Tori Mezebish while the duck is being anesthetized for surgery to implant a small satellite transmitter to track the duck during subsequent breeding years.

Dr. Olsen is in a surgical gown, gloves, hat and mask, and the duck is completely anesthetized while the surgery is happening
Common Eider implant surgery in Maine
Common Eider implant surgery in Maine
Common Eider implant surgery in Maine

Dr. Glenn Olsen is performing surgery on a female Common Eider to implant a small satellite tracking device in the duck. The surgery is done under sterile conditions and general anesthetic.

Dr. Glenn Olsen is performing surgery on a female Common Eider to implant a small satellite tracking device in the duck. The surgery is done under sterile conditions and general anesthetic.

Appalachian grizzled skipper restrained for tissue sampling by Susan Olcott (West Virginia Division of Natural Resources)
Tissue sampling from Appalachian Grizzled skipper
Tissue sampling from Appalachian Grizzled skipper
Tissue sampling from Appalachian Grizzled skipper

The U.S. Fish and Wildlife Service considers the Appalachian grizzled skipper (Pyrgus wyandot). The small number of known colonies, the small number of individuals per colony, and the lack of information on the genetic relationships among the colonies, populations, and metapopulations render the Appalachian grizzled skipper vulnerable to extinction.

The U.S. Fish and Wildlife Service considers the Appalachian grizzled skipper (Pyrgus wyandot). The small number of known colonies, the small number of individuals per colony, and the lack of information on the genetic relationships among the colonies, populations, and metapopulations render the Appalachian grizzled skipper vulnerable to extinction.

Macro photography image of Bombus affinis on a black background
Bombus affinis
Bombus affinis
Bombus affinis

The mysterious case of the Appalachian Rusty-patched Bumble Bee (Bombus affinis) holdouts. There are no more RPBB's in most of North American, people have looked, it's not really a question of overlooking them any longer, they are just all gone. Fingers point to a set of introduced European bumble bee pathogens.

The mysterious case of the Appalachian Rusty-patched Bumble Bee (Bombus affinis) holdouts. There are no more RPBB's in most of North American, people have looked, it's not really a question of overlooking them any longer, they are just all gone. Fingers point to a set of introduced European bumble bee pathogens.

Red fox with the pine vole in its mouth
Red fox at the road
Red fox at the road
Red fox at the road

A red fox with a pine vole in its mouth looking at the camera at the Central tract of the FWS Patuxent Research Refuge in Laurel, MD.            

A red fox with a pine vole in its mouth looking at the camera at the Central tract of the FWS Patuxent Research Refuge in Laurel, MD.            

A Lincoln's Sparrow wintering at the Patuxent Research Refuge
Lincoln's Sparrow
Lincoln's Sparrow
Lincoln's Sparrow

An annual count has been conducted at Patuxent Research Refuge every year since 1941, when the refuge consisted of only the Central and South Tracts. In the last few years, bird watchers have regularly observed Lincoln’s Sparrows during the Christmas Bird Count at Patuxent Research Refuge.

An annual count has been conducted at Patuxent Research Refuge every year since 1941, when the refuge consisted of only the Central and South Tracts. In the last few years, bird watchers have regularly observed Lincoln’s Sparrows during the Christmas Bird Count at Patuxent Research Refuge.

Truck siphoning sediment and debris from the research pond's collection kettle.
Cleaning the ponds
Cleaning the ponds
Cleaning the ponds

The Eastern Ecological Science Center's Leetown Research facility has multiple quarter-acre and half-acre research ponds to use for fish rearing and other outdoor laboratory applications.  Here we are cleaning sediment and debris from the "kettle" collection area of the ponds to keep them ready for use.

The Eastern Ecological Science Center's Leetown Research facility has multiple quarter-acre and half-acre research ponds to use for fish rearing and other outdoor laboratory applications.  Here we are cleaning sediment and debris from the "kettle" collection area of the ponds to keep them ready for use.

A person directs the siphon in the kettle collecting area of the fish pond.
Cleaning the ponds
Cleaning the ponds
Cleaning the ponds

The Eastern Ecological Science Center's Leetown Research facility has multiple quarter-acre and half-acre research ponds to use for fish rearing and other outdoor laboratory applications.  Here we are cleaning sediment and debris from the "kettle" collection area of the ponds to keep them ready for use. 

The Eastern Ecological Science Center's Leetown Research facility has multiple quarter-acre and half-acre research ponds to use for fish rearing and other outdoor laboratory applications.  Here we are cleaning sediment and debris from the "kettle" collection area of the ponds to keep them ready for use. 

American Shad capture in the Penobscot river (Credit: Joe Zydlewski)
American Shad capture in the Penobscot river (Credit: Joe Zydlewski)
American Shad capture in the Penobscot river (Credit: Joe Zydlewski)
American Shad capture in the Penobscot river (Credit: Joe Zydlewski)

American Shad captured in the Penobscot river n the U.S. state of Maine. (Credit: Joe Zydlewski)

Picture of an adult male Ring-necked Duck.
Ring-necked Duck photo by Glenn H. Olsen
Ring-necked Duck photo by Glenn H. Olsen
Ring-necked Duck photo by Glenn H. Olsen

Male adult Ring-necked Duck part of a multi-state, multi-year research project looking at migration routes and breeding area for Ring-necked Ducks that winter on freshwater wetlands in the southeastern US.

Male adult Ring-necked Duck part of a multi-state, multi-year research project looking at migration routes and breeding area for Ring-necked Ducks that winter on freshwater wetlands in the southeastern US.

American Mink on the Duval bridge
American Mink on a bridge
American Mink on a bridge
American Mink on a bridge

Neogale vison, American Mink crossing the Duval bridge at the Patuxent Research Refuge in Laurel, MD

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Neogale vison, American Mink crossing the Duval bridge at the Patuxent Research Refuge in Laurel, MD

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This pictures shows Dr. Glenn Olsen and Mary Anderson standing over a surgery table with an anesthetized Ring-necked Duck on
Ring-necked Duck Surgery
Ring-necked Duck Surgery
Ring-necked Duck Surgery

Dr. Glenn Olsen and Mary Anderson at work doing a surgical procedure to implant a small 1 ounce (30 gram) radio transmitter in a Ring-necked Duck. This procedure is part of a multi-year study looking at wintering Ring-necked Ducks in the southeastern US.

Dr. Glenn Olsen and Mary Anderson at work doing a surgical procedure to implant a small 1 ounce (30 gram) radio transmitter in a Ring-necked Duck. This procedure is part of a multi-year study looking at wintering Ring-necked Ducks in the southeastern US.

Virginia Opossum eating the Giant Leopard Moth caterpillar
Virginia Opossum with the Giant Leopard Moth caterpillar
Virginia Opossum with the Giant Leopard Moth caterpillar
Virginia Opossum with the Giant Leopard Moth caterpillar

Didelphis virginiana, Virginia Opossum eating the caterpillar of the Giant Leopard Moth, Hypercompe scribonia

Didelphis virginiana, Virginia Opossum eating the caterpillar of the Giant Leopard Moth, Hypercompe scribonia

conceptual diagram
Conceptual Diagram of NSF PIPP Avian Influenza work
Conceptual Diagram of NSF PIPP Avian Influenza work
Conceptual Diagram of NSF PIPP Avian Influenza work

This conceptual diagram explains how the research involved in the NSF PIPP project will be broken down into specific components.

This conceptual diagram explains how the research involved in the NSF PIPP project will be broken down into specific components.

A Black-throated Blue Warbler at a stopover site along the Patuxent River
Black-throated Blue Warbler
Black-throated Blue Warbler
Black-throated Blue Warbler

A Black-throated Blue Warbler at a stopover site along the Patuxent River.  Photo courtesy of Michael Lutmerding of the EESC at Patuxent Research Refuge in Laurel, MD.

A Black-throated Blue Warbler at a stopover site along the Patuxent River.  Photo courtesy of Michael Lutmerding of the EESC at Patuxent Research Refuge in Laurel, MD.

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