Avian Indicators of Climate Change Based on the North American Breeding Bird Survey

Appropriate ecological indicators of climate change can be used to measure concurrent changes in ecological systems, inform management decisions, and potentially to project the consequences of climate change. However, many of the available indicators for North American birds do not account for imperfect observation. We proposed to use correlated-detection occupancy models to develop indicators from the North American Breeding Bird Survey data. The indicators were used to test hypotheses regarding changes in range and distribution of breeding birds. The results will support the Northeast Climate Science Center’s Science Agenda, including the science priority: researching ecological vulnerability and species response...

Categories: Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2014, 2014, Birds, Birds, CASC, All tags... CASC, Climate indicators, Completed, Migratory birds, North American Breeding Bird Survey, Northeast, Northeast CASC, Northeast CASC, Projects by Region, Wildlife and Plants, Wildlife and Plants, occupancy models, Fewer tags

U.S. Fish and Wildlife Service Argos GPS Satellite Tracking Data for Lesser Yellowlegs (Tringa flavipes)

This data package contains location data collected by the Argos System (CLS America, Inc.) from satellite transmitters attached to 116 Lesser Yellowlegs captured at multiple sites across their breeding and nonbreeding range in North America, 2018-2021. The raw data were processed to accomplish two goals: 1) flag implausible location and 2) remove locations within Joint Base Elmendorf-Richardson (JBER) and Eielson Air Force Base boundaries. Removal of locations in military land boundaries is required due to federal guidelines by Department of Defense (DoD) Public Affairs office and DoD Partners in Flight. Due to data sharing constraints of participating agencies, not all the locations (i.e., latitude and longitude)...

Tags: Alaska, Anchorage, Animal tracking, Animals/Vertebrates, Annual cycle, All tags... Argos, Biota, Birds, Breeding sites, Canada, Capture-recapture studies, Central America, Churchill, Coastal ecosystems, Eielson AFB, Environment, Ile Nue de Mingan, James Bay, Joint Base Elmendorf-Richardson, Kanuti National Wildlife Refuge, Marine ecosystems, Migratory birds, Migratory rates/routes, Migratory species, Non-breeding range, Ornithology, Overwintering, Satellite transmitter, Seasonal distribution, Seasonal movement, South America, Species life history, Tagging devices, The Caribbean, Tracking equipment, United States of America, Waders/Gulls/Auks and Allies, Wildlife, Yellowknife, 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

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

Impacts of Climate-Driven Changes in Spring Green-Up on Migratory Birds in Alaska

Migratory birds are important for recreation and tourism, contributing to a vibrant birdwatching industry in Alaska. Every spring, hundreds of birds migrate to their summer breeding grounds in Alaska and northern Canada. Their arrival is timed with the height of the spring green-up of plants, which provide the food necessary for birds to reproduce and raise their young. However, over the last fifty years, warming temperatures in Alaska as a result of climate change have prompted an earlier transition from winter to spring. The purpose of this project was to examine whether there have been changes in the timing of spring green-up in recent years (1985-2009) and, if so, whether migratory birds are adapting their migration...

Categories: Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2009, Alaska, Arctic, Arctic, Birds, All tags... Birds, CASC, Completed, Landscapes, Landscapes, National CASC, National CASC, Plants, Plants, Projects by Region, Wildlife and Plants, Wildlife and Plants, climate change, migratory birds, plant phenology, Fewer tags

Decision-Support for Migratory Bird Management in the Face of Uncertainty

Migratory birds are responding to changes in climate in complex and sometimes unpredictable ways. The timing of breeding and migration typically coincide with the periods of peak food availability; however, these peaks are shifting as temperatures and precipitation patterns change, resulting in a mismatch in the timing of key events. The degree to which this mismatch is impacting migratory birds varies among species and regions, creating a major source of uncertainty for managers. The goal of this project is to develop tools to support migratory bird management decision-making in the face of uncertain future climate and land use conditions. In order to identify and implement the most effective management strategies,...

Categories: Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2017, Birds, Birds, CASC, Completed, All tags... Data Visualization & Tools, National CASC, National CASC, Projects by Region, Science Tools For Managers, Wildlife and Plants, Wildlife and Plants, climate change, decision analysis, management decision making, migratory birds, Fewer tags