Canada Goose on the Colville River Delta
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Canada Goose on the Colville River Delta
Canada Goose on the Colville River Delta
Snow geese and Black Brant fight over nesting territories
Snow geese and Black Brant fight over nesting territoriesTwo snow geese and a single black brant goose fight over nesting territories on the Colville River Delta in Alaska.
Snow geese and Black Brant fight over nesting territories
Snow geese and Black Brant fight over nesting territoriesTwo snow geese and a single black brant goose fight over nesting territories on the Colville River Delta in Alaska.
Black Brant flying near the Colville River, northern Alaska
Black Brant flying near the Colville River, northern AlaskaBlack Brant flying near the Colville River, northern Alaska.
Black Brant flying near the Colville River, northern Alaska
Black Brant flying near the Colville River, northern AlaskaBlack Brant flying near the Colville River, northern Alaska.
The top of Tusuk Channel on the Pilgrim River
Near the top of the Tusuk Channel of the Pilgrim River.
Near the top of the Tusuk Channel of the Pilgrim River.
Fire effects monitoring after the Funny River Fire, Kenai Peninsula AK
Fire effects monitoring after the Funny River Fire, Kenai Peninsula AKPre- and post-fire measurements of fire effects help ecologists, fire scientists, and managers determine how the severity of wildfires affects plants, animal habitat, and ecosystem services
Fire effects monitoring after the Funny River Fire, Kenai Peninsula AK
Fire effects monitoring after the Funny River Fire, Kenai Peninsula AKPre- and post-fire measurements of fire effects help ecologists, fire scientists, and managers determine how the severity of wildfires affects plants, animal habitat, and ecosystem services
Reburns are becoming more common in many parts of Alaska
Reburns are becoming more common in many parts of AlaskaReburns, or fires that burn more frequently than expected, are becoming more common in Alaska and can cause major changes in vegetation composition, wildlife habitat, and landscape resilience
Reburns are becoming more common in many parts of Alaska
Reburns are becoming more common in many parts of AlaskaReburns, or fires that burn more frequently than expected, are becoming more common in Alaska and can cause major changes in vegetation composition, wildlife habitat, and landscape resilience
Assessing the severity of the Funny River fire on the Kenai Peninsula
Assessing the severity of the Funny River fire on the Kenai PeninsulaPre- and post-fire measurements of fire effects help ecologists, fire scientists, and managers determine how the severity of wildfires affects plants, animal habitat, and ecosystem services.
Assessing the severity of the Funny River fire on the Kenai Peninsula
Assessing the severity of the Funny River fire on the Kenai PeninsulaPre- and post-fire measurements of fire effects help ecologists, fire scientists, and managers determine how the severity of wildfires affects plants, animal habitat, and ecosystem services.
R/V Solstice
Alaska Department of Fish and Games vessel Solstice carried USGS scientists for three weeks in May 2015 while they mapped 650 square kilometers of seafloor and features beneath the seafloor in fine detail.
Alaska Department of Fish and Games vessel Solstice carried USGS scientists for three weeks in May 2015 while they mapped 650 square kilometers of seafloor and features beneath the seafloor in fine detail.
Salcha River bridge near Salchaket
Salcha River bridge near Salchaket
Salcha River bridge near Salchaket
Nenana River sonar top near Windy
Nenana River sonar top near Windy
Nenana River sonar top near Windy
Alaska DFG vessel Solstice
Mapping along the Queen Charlotte-Fairweather fault required several days aboard the Alaska Department of Fish and Game research vessel Solstice. Here, the boat sits in a marina near Cordova, Alaska.
Mapping along the Queen Charlotte-Fairweather fault required several days aboard the Alaska Department of Fish and Game research vessel Solstice. Here, the boat sits in a marina near Cordova, Alaska.
Sea ice blocks pushed up in a pressure ridge of ice
Sea ice blocks pushed up in a pressure ridge of iceSea ice blocks pushed up in a pressure ridge of ice
Sea ice blocks pushed up in a pressure ridge of ice
Sea ice blocks pushed up in a pressure ridge of iceSea ice blocks pushed up in a pressure ridge of ice
Polar bear wearing a GPS satellite video-camera collar
Polar bear wearing a GPS satellite video-camera collarAn adult female polar bear on the sea ice wearing a GPS satellite video-camera collar. GPS video-camera collars were applied to solitary adult female polar bears for 8 - 12 days in April, 2014-2016. These collars enabled researchers to understand the movements, behaviors, and foraging success of polar bears on the sea ice.
Polar bear wearing a GPS satellite video-camera collar
Polar bear wearing a GPS satellite video-camera collarAn adult female polar bear on the sea ice wearing a GPS satellite video-camera collar. GPS video-camera collars were applied to solitary adult female polar bears for 8 - 12 days in April, 2014-2016. These collars enabled researchers to understand the movements, behaviors, and foraging success of polar bears on the sea ice.
Black-capped Chickadee with lower elongated and upper curved beak
Black-capped Chickadee with lower elongated and upper curved beakA Black-capped Chickadee with a severely deformed beak where the upper beak is elongated and curved down while the lower beak is elongated and straight. Over the past 26 years, Alaskans have witnessed a startling increase of beak deformities among Black-capped Chickadees and other species of resident birds.
Black-capped Chickadee with lower elongated and upper curved beak
Black-capped Chickadee with lower elongated and upper curved beakA Black-capped Chickadee with a severely deformed beak where the upper beak is elongated and curved down while the lower beak is elongated and straight. Over the past 26 years, Alaskans have witnessed a startling increase of beak deformities among Black-capped Chickadees and other species of resident birds.
Black-capped Chickadee with lower elongated and upper curved beak
Black-capped Chickadee with lower elongated and upper curved beakA Black-capped Chickadee with a severely deformed beak where the upper beak is elongated and curved down while the lower beak is elongated and straight
Black-capped Chickadee with lower elongated and upper curved beak
Black-capped Chickadee with lower elongated and upper curved beakA Black-capped Chickadee with a severely deformed beak where the upper beak is elongated and curved down while the lower beak is elongated and straight
Satellite image of eruption cloud from Pavlof Volcano in November 2014
Satellite image of eruption cloud from Pavlof Volcano in November 2014Satellite image from the USGS/NASA Landsat-8 satellite showing the eruption cloud at Pavlof Volcano on November 15 at 12:46 pm AKST (21:46 UTC). This is just a portion of the eruption cloud, which extended for more than 250 miles to the northwest at the time this image was collected.
Satellite image of eruption cloud from Pavlof Volcano in November 2014
Satellite image of eruption cloud from Pavlof Volcano in November 2014Satellite image from the USGS/NASA Landsat-8 satellite showing the eruption cloud at Pavlof Volcano on November 15 at 12:46 pm AKST (21:46 UTC). This is just a portion of the eruption cloud, which extended for more than 250 miles to the northwest at the time this image was collected.
Black-capped Chickadee with a mildly deformed beak
Black-capped Chickadee with a mildly deformed beakA Black-capped Chickadee with an upper beak slightly longer than the lower beak. Avian keratin disorder (AKD) is a disease characterized by debilitating beak overgrowth and other abnormalities of keratinized tissues. Affected birds have difficulty feeding and preening and may suffer high rates of mortality.
Black-capped Chickadee with a mildly deformed beak
Black-capped Chickadee with a mildly deformed beakA Black-capped Chickadee with an upper beak slightly longer than the lower beak. Avian keratin disorder (AKD) is a disease characterized by debilitating beak overgrowth and other abnormalities of keratinized tissues. Affected birds have difficulty feeding and preening and may suffer high rates of mortality.
Black-capped Chickadee captured at an Anchorage banding station
Black-capped Chickadee captured at an Anchorage banding stationA Black-capped Chickadee with a normal beak captured at an Anchorage banding station.
Black-capped Chickadee captured at an Anchorage banding station
Black-capped Chickadee captured at an Anchorage banding stationA Black-capped Chickadee with a normal beak captured at an Anchorage banding station.
Sheridan River flood
Sheridan River flood
Slate-colored Junco
A Slate-colored Junco on Middleton Island, Alaska.
A Slate-colored Junco on Middleton Island, Alaska.
Wildfire and Alaskan Permafrost
Deploying geophysical equipment in the Nome Creek (AK) area to assess the effect of wildfire on permafrost. Small electrical signals are injected into the ground through metal stakes connected to the orange cable in the foreground. The measured response is used to detect belowground permafrost conditions.
Deploying geophysical equipment in the Nome Creek (AK) area to assess the effect of wildfire on permafrost. Small electrical signals are injected into the ground through metal stakes connected to the orange cable in the foreground. The measured response is used to detect belowground permafrost conditions.