Wildlife Program

Animals Species

Filter Total Items: 145
Date published: September 25, 2019
Status: Active

Temporal and spatial patterning of aquatic macroinvertebrate communities in response to changing environmental conditions

An increased understanding of prairie-pothole-wetland macroinvertebrate dynamics is crucial to better inform conservation strategies related to waterfowl production, biodiversity enhancement, and wetland function/health maintenance. Wetlands in general are highly variable in space and time, and wetland macroinvertebrates are adapted to this great variability. Wetland ecosystems are also...

Date published: August 29, 2019
Status: Active

Post-fledging movement and habitat selection by mallards in the fall and their effect on spring recruitment

Considerable scientific research has been conducted in North America on nearly all aspects of the annual cycle of mallards, primarily focused on the breeding season. However, the period between when juveniles are capable of flight to their first southward migration remains a vastly understudied time for all waterfowl species. Beginning in 2018, a graduate student from South Dakota State...

Contacts: Aaron Pearse
Date published: August 29, 2019
Status: Active

Determining the dietary preferences and population genetics of an endangered bumble bee, Bombus affinis, by maximizing the use of museum specimens

Bombus affinis, the rusty patched bumble bee, was federally listed as an endangered species in 2017 and has been identified as one of the top priority species for recovery nationally. Shortly after listing the species, partnering researchers and FWS prioritized the research needed to prevent the extinction of B. affinis. Some of the top research needs that were identified...

Contacts: Clint Otto
Date published: August 29, 2019
Status: Active

Support the Development of a National Park Service Midwest Region bison stewardship strategy

Bison have played a key role in shaping the grasslands of the Great Plains for millennia.  National Parks are a major last bastion for wild herds of the national mammal and symbol of the Department of the Interior. However, even as the National Park Service aims to maintain as natural as possible ecosystem conditions within its parks’ boundaries, managers regularly make decisions affecting...

Contacts: Amy Symstad
Date published: April 9, 2019
Status: Active

Genetic characterization of the clubshell species complex (Pleurobema clava and P. oviforme) for enhanced conservation

The diversity of freshwater mussels (family Unionidae) in the United States is unmatched in the rest of the world, yet this biodiversity is highly vulnerable, with more than 70% of recognized species considered to be either endangered, threatened, or of special concern.  Most species inhabit limited ranges and have small (and/or often unknown) dispersal abilities due to reliance on specific...

Date published: April 4, 2019
Status: Active

Health Effects and Behavioral Response of Florida Manatees (Trichechus manatus latirostris) to Persistent Algal Bloom and Associated Loss of Seagrass Resources in Brevard County, Florida

USGS researchers are working with partners to assess the health and foraging behavior of Florida manatees in the northern Indian River Lagoon and Banana River, areas that have experienced declining seagrasses due to an extended phytoplankton bloom. 

Date published: April 3, 2019
Status: Active

Development of Next Generation Techniques of fecal samples collected from nestling cactus wren

Coastal cactus wren populations have declined in southern California over the last three decades. In San Diego County, this decline has been especially noticeable in the Otay area, which in 2014 supported 14 territories on conserved lands. In the past, there were 25-53 active territories reported for this same area, with the highest estimate in 1992. There is also concern the number of active...

Date published: April 3, 2019
Status: Active

Developing and testing eDNA markers for the Federally endangered dwarf wedgemussel, Alasmidonta heterodon and other key freshwater mussel species

Dwarf wedgemussel is a federally endangered freshwater mussel with a historic range spanning the Atlantic coast. However, populations have dramatically declines over the last 30 years.  Therefore, knowledge of current population distribution and abundance is critical to resource managers in order to monitor the species over time and to guide recovery actions. Manual survey efforts (snorkel or...

Date published: April 1, 2019
Status: Active

Ecological flow needs of freshwater mussels

Streamflow characteristics are rapidly changing in response to climate variability, water management practices, and a variety of other human water demands.  Alterations in water quantity can have direct impacts on aquatic organisms (e.g., stranding, displacement, disruption of spawning), and can be especially detrimental to organisms with limited mobility.  Freshwater mussels are one such...

Date published: March 26, 2019
Status: Active

Identification of Hydrologic Controls on Coastal Spartina patens Marshes and Optimal Hydrological Conditions for Sustainable Mottled Duck Habitat

Mottled ducks rely on the coastal marshes of the Texas Chenier Plain, which are considered among the most critically endangered habitats in the United States. USGS scientists are evaluating what might be contributing to the degradation of high-quality mottled duck habitat to better understand the causes of habitat loss and subsequently mitigate those losses.

Date published: March 26, 2019
Status: Active

Population Ecology of Florida Manatees

USGS is working with partners to understand how the federally protected Florida manatee population changes over time and responds to threats.

Date published: March 22, 2019
Status: Active

Fall Survival of American Woodcock on Cape May, NJ

The American woodcock is a popular game bird in much of eastern North America. The woodcock population declined between 1968- 2000 at an annual rate of 2.3% in the Eastern region and 1.6% in the Central region. Estimated annual survival of woodcock banded in the Eastern region was estimated to be 0.354 for the period 1967-74. Estimates for the migration period, a period when substantial...

Contacts: Daniel McAuley