Images

An American Tree Sparrow at the Patuxent Research Refuge photographed by Wildlife Biologist, Mickey Lutmerding.

A Savannah Sparrow at the Patuxent Research Refuge.  Patuxent Research Refuge, PG Co., MD

A Japanese quail egg is being examined to determine if the egg is viable.  Associated project: Development and optimization of toxicogenomic tools for assessing immunomodulatory, metabolic, and endocrine effects of emerging contaminants.

During Nov-Dec 2021 study in the Conte Fish Passage Complex (flume bldg), juvenile lamprey transformers were tagged and released in the 10' wide west flume to evaluate their response to various conditions including water velocity and light.

During Nov-Dec 2021 study in the Conte Fish Passage Complex (flume bldg), juvenile lamprey transformers were tagged and released in the 10' wide west flume to evaluate their response to various conditions including water velocity and light.  Alex Haro is shown here clearing the flume of fish that were not captured in the trap or moved downstream.

Casey Knapp is an Information Specialist at the USGS Eastern Ecological Science Center on the Partner and Employee Engagement Team. 

Banders compare the wings of two banded Purple Finches at the USGS Bird Banding Lab's Fall Migration Station. 

A male Sharp-shinned Hawk banded at the USGS Bird Banding Lab's Fall Migration Station. 

A Tufted Titmouse recaptured at the Bird Banding Lab's Fall Migration Station in 2021, originally banded at the station in 2013.

Student contractor and amphibian research technician, Claire Netto, is handling a salamander captured at Wendell State Forest in Wendell, MA. This salamander is one of many being monitored by the Northeast Amphibian Research and Monitoring Initiative (NEARMI) using mark-recapture techniques.

The Native Bee Inventory and Monitoring Lab piloted a process in 2021 to propagate woody plants from cuttings. Once large enough, these plants will be used in the garden at Patuxent Research Refuge or distributed to the public for planting on their own properties. 

The Native Bee Inventory and Monitoring Lab staff and volunteers will collect these seed heads for future use in the learning garden or for distribution to the public to plant on their own properties.

Orange and yellow autumn foliage forms arch on American Holly Drive at the Patuxent Research Refuge in Laurel, MD. 

Alex Haro surgically implants passive integrated transponder (PIT) tag into juvenile lamprey (transformer) in preparation for a light deterrent study at EESC S.O. Conte Research laboratory's fish passage complex.

Juvenile lamprey transformers collected in the Connecticut River are measured and weighed prior to implantation with a passive integrated transponder (PIT) tag as part of a light deterrent study at EESC S.O. Conte Research laboratory's fish passage complex.

Alex Haro holds a juvenile sea lamprey (transformer) prior to tagging for a light deterrent study at EESC S.O. Conte Research laboratory's fish passage complex.  This lamprey has begun its dramatic metamorphosis developing eyes and oral disks covered with pointy teeth and is ready to begin migrating downstream to the sea.

Alex Haro prepares to implant passive integrated transponder (PIT) tag into juvenile lamprey (transformer) in preparation for a light deterrent study at EESC S.O. Conte Research laboratory's fish passage complex.

This photo shows Karli Rogers gathering gage height data to support research on a headwater stream gage in Shenandoah National Park in Virginia.

This photo shows USGS researchers Kyle Fronte and Karli Rogers measuring relative elevation at a headwater stream gaging station in Shenandoah National Park, Virginia.

A bander examine's the wing of a Yellow-bellied Sapsucker, using Peter Pyle's book "Identification Guide to North American Birds" to age and sex the individual. 

This photo shows USGS Researcher Karli Rogers measuring streamflow with salt dilution in support of drought ecology research in Shenandoah National Park in Virginia.