Population Plots at Two Seabird Colonies in Lower Cook Inlet, Alaska

This dataset consists of one table with annual counts from population plots of Black-legged Kittiwakes and Common Murres at two seabird nesting colonies on Gull and Chisik Islands in lower Cook Inlet, Alaska.

Categories: Data; Tags: Alaska, Animals/Vertebrates, Biota, Birds, Black-legged Kittiwakes, All tags... Breeding sites, Coastal ecosystems, Common Murres, Cook Inlet, Environment, Gulf of Alaska, Indicator species, Kachemak Bay, Marine ecosystems, Population dynamics, Rissa tridactyla, Uria aalge, Waders/Gulls/Auks and Allies, Wildlife, Fewer tags

Aerial Photo Imagery from Fall Waterfowl Surveys, Izembek Lagoon, Alaska, 2017-2019

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...

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:ASC449, Waders/Gulls/Auks and Allies, Waterfowl, Wetland ecosystems, Wildlife, Fewer tags

Nesting Productivity of Black-Legged Kittiwakes and Common Murres at Two Seabird Colonies in Lower Cook Inlet, Alaska

This dataset consists of one table with annual nesting productivity estimates for Black-legged Kittiwakes and Common Murres at two seabird nesting colonies on Gull and Chisik Islands in lower Cook Inlet, Alaska.

Categories: Data; Tags: Alaska, Animals/Vertebrates, Biota, Birds, Black-legged Kittiwakes, All tags... Breeding sites, Coastal ecosystems, Common Murres, Cook Inlet, Environment, Gulf of Alaska, Indicator species, Kachemak Bay, Marine ecosystems, Population dynamics, Rissa tridactyla, USGS:ASC378, Uria aalge, Waders/Gulls/Auks and Allies, Wildlife, Fewer tags

Data and Model-Based Estimates from Black Brant (Branta bernicla nigricans) Fall Age Ratio Surveys at Izembek Lagoon, Alaska

These data are in two tables relating to fall age ratios (number of juvenile birds : total birds aged) of Black Brant (Branta bernicla nigricans) staging in Izembek Lagoon, Alaska, since 1963. The first table is observation data for the age classes of Black Brant during surveys, and associated survey characteristics. The second table contains model-based estimates of age ratios by year along with Standard Error (SE), and 95% Bayesian credible intervals around estimates.

Tags: Alaska, Animal populations, Animals/Vertebrates, Biota, Birds, All tags... Black Brant, Brent Goose, Computational methods, Ecological dynamics, Environment, Izembek Lagoon, Izembek National Wildlife Refuge, Mathematical modeling, Migratory birds, Population dynamics, Species life history, Species/population interactions, USGS:ASC256, Waterfowl, Wildlife biology, Fewer tags

Predation of Common Murre Eggs at Two Seabird Colonies in Lower Cook Inlet, Alaska

This dataset consists of one table with egg predation data from Common Murres at two seabird nesting colonies on Gull and Chisik Islands in lower Cook Inlet, Alaska.

Categories: Data; Tags: Alaska, Animals/Vertebrates, Bald Eagle, Biota, Birds, All tags... Breeding sites, Coastal ecosystems, Common Murres, Cook Inlet, Egg production, Environment, Glaucous-winged Gull, Gulf of Alaska, Haliaeetus leucocephalus, Herring Gull, Indicator species, Kachemak Bay, Larus argentatus, Larus glaucescens, Marine ecosystems, Nesting behavior, Nesting success, Population dynamics, Reproductive success, Uria aalge, Use/Feeding habitat, Waders/Gulls/Auks and Allies, Wildlife, Fewer tags

Population Counts at Two Seabird Colonies in Lower Cook Inlet, Alaska

This dataset consists of one table with annual population counts (censuses) for Black-legged Kittiwakes and Common Murres at two seabird nesting colonies on Gull and Chisik Islands in lower Cook Inlet, Alaska.

Categories: Data; Tags: Alaska, Animals/Vertebrates, Biota, Birds, Black-legged Kittiwakes, All tags... Breeding sites, Coastal ecosystems, Common Murres, Cook Inlet, Environment, Gulf of Alaska, Indicator species, Kachemak Bay, Marine ecosystems, Population dynamics, Rissa tridactyla, Uria aalge, Waders/Gulls/Auks and Allies, Wildlife, Fewer tags