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This dataset includes tables summarizing image information and bird counts from the aerial digital images taken over open water at Izembek Lagoon in Alaska in fall 2017-2019. These summaries list one record per image and provide the camera parameters, latitude, longitude, altitude, and automated and manual counts representing the total number of birds in each taxon (brant, white-cheeked geese, emperor geese, gulls, and other birds) identified in the image. The original images (.JPG format) and annotations are provided in an accompanying USGS data release (Weiser et al. 2022).
Categories: Data;
Tags: Aerial photography,
Aerial surveys,
Alaska,
Alaska Peninsula,
Animals/Vertebrates, All tags...
Anser canagicus,
Aquatic ecosystems,
Biota,
Birds,
Branta bernicla,
Branta hutchinsii,
Coastal ecosystems,
Ducks/Geese/Swans,
Environment,
Estuarine habitat,
Image collections,
Izembek Lagoon,
Izembek National Wildlife Refuge,
Migratory birds,
Migratory species,
Photography,
Population dynamics,
Relative abundance analysis,
Tundra ecosystems,
USGS Science Data Catalog (SDC),
Waders/Gulls/Auks and Allies,
Waterfowl,
Wetland ecosystems,
Wildlife,
Wildlife Biology, Fewer tags
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The imagery and annotations presented here were generated while testing an aerial photographic survey design to improve repeatability, transparency, and estimation of variance for annual population estimates of geese staging at Izembek Lagoon, Alaska. This dataset includes 1) 131,031 .JPG images captured from a small fixed-wing occupied aircraft, usually at an altitude of about 457 m, over Izembek Lagoon; 2) annotations of objects (geese, ducks, and gulls) assigned by an automated algorithm, and 3) manually corrected annotations that were edited by project staff for only those photos automatically identified as containing geese of any species. The photos were captured at predetermined points to systematically sample...
Categories: Data;
Tags: Aerial photography,
Aerial surveys,
Alaska,
Alaska Peninsula,
Animals/Vertebrates, All tags...
Anser canagicus,
Aquatic ecosystems,
Biota,
Birds,
Branta bernicla,
Branta hutchinsii,
Coastal ecosystems,
Ducks/Geese/Swans,
Environment,
Estuarine habitat,
Image collections,
Izembek Lagoon,
Izembek National Wildlife Refuge,
Migratory birds,
Migratory species,
Photography,
Population dynamics,
Relative abundance analysis,
Tundra ecosystems,
USGS Science Data Catalog (SDC),
Waders/Gulls/Auks and Allies,
Waterfowl,
Wetland ecosystems,
Wildlife,
Wildlife Biology, Fewer tags
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