Filter Total Items: 143
Date published: May 31, 2019
Status: Active

Deriving Spatial Waterfowl Inputs for Disease Risk Modeling

This project is an effort to create spatially and temporally explicit models for waterfowl distribution across the United States for use in avian influenza transmission risk modeling.

Date published: May 8, 2019
Status: Active

Spatio-Temporal Statistical Models for Forecasting Climate Change Effects on Bird Distribution

Ecological indicators of climate change are needed to measure concurrent changes in ecological systems, inform management decisions, and forecast the consequences of climate change. We seek to develop robust bird-based, climate-change indicators using North American Breeding Bird Survey data.

Date published: February 25, 2019
Status: Active

Hazard, Risk and Physiologically-based Pharmacokinetic Model for Anticoagulant Rodenticides in Kestrels and Owls

Rodents can consume and spoil crops, serve as disease vectors, and can devastate remote island ecosystems when introduced by anthropogenic activities.  Starting in to 20th century, rodenticides were developed and introduced for the control of these commensal species.  Regrettably, some rodenticides pose a significant hazard to target wildlife.

Date published: February 22, 2019
Status: Active

Do Neonicotinoid Pesticide Seed Coatings Pose a Hazard to Seed-eating Birds?

Treating or “dressing” of seeds with pesticides is a commonly used method to enhance crop yield in agriculture.  Regrettably, such treated seeds can be ingested by wildlife, and depending on the extent of exposure, can cause adverse effects.

Date published: February 21, 2019
Status: Active

Genomic and Behavioral Effects of the Neonicotinoid Imidacloprid in Birds Exposed Through Pesticide-Coated Seeds

The Challenge: Neonicotinoid pesticides act as agonists of nicotinic acetylcholine receptors (nAChRs) and are designed to be lethal to insects while theoretically posing little to no threat to vertebrates. The perceived safety of neonicotinoids has led to a sharp increase in their use in the United States and globally, since they were first introduced in 1994. The use of the neonicotinoid...

Date published: February 20, 2019
Status: Active

Contaminant-related Activities in Support of Client Agencies in the Department of the Interior

We undertake many research activities in support of the mission of the Department of the Interior.  One such activity is to evaluate the potential hazard and risk of environmental contaminants to natural resources.

Date published: February 18, 2019
Status: Completed

Contaminant Exposure, Food Web Transfer and Potential Health Effects on Chesapeake Bay and Delaware Bay Waterbirds

Chesapeake and Delaware Bays are the largest estuaries on the east coast of the United States.  They support extensive fisheries and provide critical habitat for many species of wildlife.  These Bays are surrounded by vast agricultural andindustrialized regions, with urbanized areas, all of which are a source of pollution that can affect natural resources.  We have long monitored contaminants...

Contacts: Barnett Rattner, Ph.D., Natalie Karouna-Renier, Ph.D., Rebecca Lazarus, Ph.D.
Date published: June 21, 2018
Status: Active

About the Science and Decisions Center

Today's natural resource managers must make effective decisions with broad–scale societal impacts. 

Date published: March 26, 2018
Status: Active

Structured Decision Making

The biggest natural resource management challenges include competing views of the value and uses of those resources in society. Patuxent scientists develop methods to manage resources given those competing views under a “structured decision making” (SDM) framework. Our scientists both practice and train others in key SDM skills, such as model development and monitoring design.

Date published: March 16, 2018
Status: Active

Vector-borne Disease Research

Lyme disease is the most prevalent vector-borne disease in North America, with about 300,000 cases per year in the U.S.  We are studying transmission of the spirochete that causes this disease among wild animals and the blacklegged tick vectors, to determine why Lyme disease is common in the northeast and northern Midwest but rare in the south, even though blacklegged ticks are present in all...

Date published: March 16, 2018
Status: Active

Forest Structure Resulting from ‘Wildlife Forestry Silviculture’

The Challenge: Management of bottomland forests using wildlife forestry silviculture is being undertaken to achieve desired forest conditions for priority silvicolous wildlife, such as Louisiana black bear, migratory birds, and resident game species. Wildlife forestry management results in forests that have more open canopies and increased understory vegetation yet exhibit heterogeneous...

Date published: March 16, 2018
Status: Active

Assessing Amphibian Disease Risk in the Northeast

The Challenge: Disease in amphibian populations can have a range of effects, from devastating declines following introduction of a novel pathogen to recurring breakout events on a landscape. Elucidating mechanisms underlying the effects of diseases on amphibian populations is crucial to help managers make appropriate decisions to achieve management goals for amphibians.