Bird and Terrestrial Species Conservation
Bird and Terrestrial Species Conservation
Filter Total Items: 87
Nocturnal Bird Migration through the Central Appalachians
The Challenge: Concerns have arisen about the potential impacts of wind power development in the Appalachians on migrating birds, creating a critical need for information on their distribution and flight characteristics as they pass through the region. This study focuses on the spatial and temporal distribution of nocturnally migrating birds in the Central Appalachians (MD, VA, WV). The overall...
Radar Analysis of Fall Migration Stopover Sites in the Northeastern U.S.
The Challenge: Most landbird conservation efforts focus on protecting or enhancing breeding habitat. For migratory species, however, mortality is highest during the biannual migration periods. In fall, juvenile birds are making their first migratory flights; their success, and that of adult birds, depends on availability of suitable sites to safely rest and forage. Identifying important stopover...
Poisoning of Migratory Birds at Contaminated Sites
The Challenge: The Department of the Interior (DOI) and the National Oceanic & Atmospheric Administration are trustees for a wide variety natural resources that belong to all Americans. Additional natural resources are overseen by Native American tribes, states, and other federal agencies. Migratory birds are an example of a trust species for DOI, under the US Fish and Wildlife Service. When wild...
Effects of Dorsally Mounted Solar-powered Cellular GPS Transmitters on Diving and Foraging in Surf Scoters and Red-throated Loons
Several types of experimental attachment techniques were tested on each study species (Surf Scoters ( Melanitta perspicillata ), Red-throated Loon ( Gavia stellata ), and Northern Gannet ( Morus bassanus )), including traditional Teflon-ribbon style harnesses, sutures, and harnesses made of silicone moulding. Silicone harnesses, which were deployed in 2014 and 2015, offered the best balance...
Migration and Habitat Use by Seabirds in the Atlantic Flyway: Evaluation of Potential Impacts of Proposed Wind Farms
Overall, this study tracked movements of over 400 individuals of three species over the course of five years; one of the most comprehensive satellite tracking studies of marine birds ever conducted in Atlantic North America. Results provide a better understanding of how diving birds use offshore areas of the mid-Atlantic U.S. and beyond, and, in combination with results from other types of...
In-Air and Underwater Hearing Abilities of Seabirds
As diving foragers, sea ducks are vulnerable to underwater anthropogenic activities, including naval sonar activity and gillnet fisheries. Bycatch in gillnets is a principle driver of mortality for sea ducks, killing hundreds of thousands of seabirds annually. To reduce gillnet bycatch, underwater hearing tests were conducted on affected sea duck species to assist with possible development of...
Vulnerability Assessment of Available Habitat for Wintering Black Ducks within the Refuge System in the Chesapeake Bay
American black duck ( Anas rubripes ) utilize inland and tidal freshwater and brackish marshes throughout the Chesapeake Bay and are considered to be an indicator species of the ecosystem’s health. Thus, conserving and increasing black duck habitats will subsequently benefit the general health of the bay. The goal of this study was to create a mechanistic model to determine the amount of...
The Eastern Box Turtle at USGS Patuxent Research Refuge, MD
Once common to forest and backyard habitats, the eastern box turtle ( Terrapene carolina ) has declined sharply.
The Mammals of South America
The Challenge: Accurate comprehensive information on current names of species and subspecies, their distributions, and means for their identification are required for effective conservation, management, scientific study, and enforcement of laws governing take, protection, and commerce. For the South American continent, up-to-date references containing this information have not been available until...
Wildlife Airstrike Identification
The Challenge: Although wildlife strikes have been investigated for decades, awareness of the dangers involved with aircraft/wildlife collisions was brought to the attention of the public when US Airways Flight 1549 struck what turned out to be a flock of Canada geese in 2009. Wildlife/aircraft collisions can be hazardous not only to the animal(s) involved, but also to people and costly equipment...
Collections and Collection Management
The Challenge: How can we preserve and maintain evidence from our scientific past and continue to smartly expand that resource to help scientists find the answers to the questions and challenges they will face in the future?
Species Identification in the White-headed Gull Complex
The Challenge: The Federal Aviation Administration has long relied on the expertise provided by the Smithsonian Feather Identification Lab for identification of bird remains recovered from bird-aircraft (birdstrike) collisions. Recently, these identifications are increasingly reliant on data from mitochondrial DNA. While generally successful in delimiting species, mitochondrial DNA is not...