Beaver lodge and drained impoundment in tributary of the Noatak River
Beaver lodge and drained impoundment in tributary of the Noatak RiverBeaver lodge and drained impoundment in tributary of the Noatak River, Noatak National Preserve
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Beaver lodge and drained impoundment in tributary of the Noatak River
Beaver lodge and drained impoundment in tributary of the Noatak River
Beaver lodge and drained impoundment in tributary of the Noatak RiverBeaver lodge and drained impoundment in tributary of the Noatak River, Noatak National Preserve
Lesser Yellowlegs chick foraging in boreal forest
Lesser Yellowlegs chicks are precocial, meaning that they hatch in an advanced state and are capable of feeding themselves and moving independently almost immediately after hatch. Since the 1970s, this species has declined by ~63%, yet the potential cause(s) of the decline are not fully understood.
Lesser Yellowlegs chicks are precocial, meaning that they hatch in an advanced state and are capable of feeding themselves and moving independently almost immediately after hatch. Since the 1970s, this species has declined by ~63%, yet the potential cause(s) of the decline are not fully understood.
Beaver dam and lodge on the Ahaliknak Creek, Noatak National Preserve
Beaver dam and lodge on the Ahaliknak Creek, Noatak National PreserveBeaver dam and lodge on the Ahaliknak Creek, Noatak National Preserve
Beaver dam and lodge on the Ahaliknak Creek, Noatak National Preserve
Beaver dam and lodge on the Ahaliknak Creek, Noatak National PreserveBeaver dam and lodge on the Ahaliknak Creek, Noatak National Preserve
Chilkat River sonar on a bridge
Chilkat River sonar on a bridge
Chilkat River sonar on a bridge
Chilkat River bridge
Chilkat River bridge
Kashwitna River bridge debris
Kashwitna River bridge debris
Kashwitna River bridge debris
Kashwitna River bridge
Kashwitna River bridge
Shublik Spring open water
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Hole in the ice from an auger on Canning River
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Minnow trap in icehole
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Michael Carey and Vanessa von Biela on Canning River
Michael Carey and Vanessa von Biela on Canning RiverSupporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Michael Carey and Vanessa von Biela on Canning River
Michael Carey and Vanessa von Biela on Canning RiverSupporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Lowering minnow trap to fish
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Canning River with bars
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Canning River with bars view
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Vanessa von Biela with cut bank at Canning River
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Copper River sonar on a bridge
Copper River sonar on a bridge
Copper River sonar on a bridge
Canning River with Brooks Range in the background
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Knik River bridge aerial view
Knik River bridge aerial view
Knik River bridge aerial view
Andrew Reeves retrieving samples at Izembek NWR
Andrew Reeves retrieving samples within Izembek National Wildlife Refuge, Alaska as part of USGS research to investigate the persistence of avian influenza viruses in North American wetlands. USGS scientists and colleagues found that influenza A viruses may remain infectious in surface waters of northern wetlands for more than seven months.
Andrew Reeves retrieving samples within Izembek National Wildlife Refuge, Alaska as part of USGS research to investigate the persistence of avian influenza viruses in North American wetlands. USGS scientists and colleagues found that influenza A viruses may remain infectious in surface waters of northern wetlands for more than seven months.
Sea otter skulls being prepared for archival
Skulls were collected in Spring 2018 & 2019 from coastlines throughout Alaska. It is assumed the animals died of natural causes over the preceding winters. They were collected under Marine Mammal Permit # 067925.
Skulls were collected in Spring 2018 & 2019 from coastlines throughout Alaska. It is assumed the animals died of natural causes over the preceding winters. They were collected under Marine Mammal Permit # 067925.
Twentymile River bridge
Twentymile bridge