Unified Interior Regions

Maryland

Maryland's water supply comes from streams, rivers, groundwater and reservoirs. Many of these systems flow to the Chesapeake Bay, the Nation's largest estuary. This complex ecosystem has been degraded due to the impact of human-population increase. The MD-DC-DE Water Science Center studies the impacts this has on water quality, habitats and biological communities.

Maryland Water

Maryland - Delaware - Washington D.C. Water Science Center

Maryland -  Delaware - Washington D.C. Water Science Center

5522 Research Park Drive
Catonsville, MD 21228

Phone: 443-498-5500
Fax: 442-498-5510

MD-DE-DC Water

Patuxent Wildlife Research Center

Patuxent Wildlife Research Center

12100 Beech Forest Road
Laurel, MD 20708-4039

Phone: 301-497-5000

Patuxent Research

States L2 Landing Page Tabs

Filter Total Items: 103
Date published: December 19, 2016
Status: Completed

Managing Free-Roaming Cats at the Patuxent Research Refuge

The Challenge: Free-roaming cats (Felis catus) are nonnative predators of small mammals, songbirds and gamebirds, reptiles, amphibians, and insects. They are also competitors of native predators and vectors for diseases to human and wildlife. The US Fish and Wildlife Service is authorized to remove cats from National Wildlife Refuges. Presently cat trapping on Refuge lands is conducted...

Date published: December 14, 2016
Status: Active

Development of Computer Software for the Analysis of Animal Population Parameters

Biologists at USGS Patuxent, as well as cooperating agencies are constantly looking for new ways of answering questions about the status of animal populations and how animal populations change over time. To address these questions, data are collected on captures and or sightings of animals which can be used to estimate parameters which affect the population using legacy software. Over time,...

Contacts: James Hines
Date published: October 4, 2016
Status: Active

Structured Decision Making: Methods, Applications, and Capacity-Building

The Challenge: The field of decision analysis is a rich and mature discipline that provides robust methods for helping decision makers understand the nature of their decisions, involve stakeholders and scientists in appropriate steps of the process, and develop transparent records for the public. The use of these structured approaches is emerging in natural resource management, and there is...

Date published: September 28, 2016

Geomorphic Responses to Stream Channel Restoration at Minebank Run, Baltimore County, Maryland

Urban streams frequently undergo severe incision and erosion due to flashy streamflows caused by impervious surfaces in the watershed. The study was designed to investigate the hydrodynamics and geomorphology of a selected reach of Minebank Run before and after stream restoration, in order to determine the effect that stream restoration had on sediment processes in the stream.

Date published: September 28, 2016

Surge, Wave, and Tide Hydrologic (SWaTH) Network in Maryland, Delaware, and the District of Columbia

Many U.S. Geological Survey Water Science Centers have responsibilities for coastal regions within their mission areas. The integrated Surge, Wave, and Tide Hydrologic (SWaTH) Network has been developed in the wake of Hurricane Sandy to support model development and verification for coastal regions, detection of hydrologic trends, and early warning of hydrologic hazards in the northeast from...

Date published: September 20, 2016
Status: Active

USGS science contributes to "Water quality improves, pollution falls in the Chesapeake Bay"

Data show significant drop in nutrient and sediment loads

Date published: September 20, 2016
Status: Completed

Improving Our Ability to Forecast Tidal Marsh Response to Sea Level Rise

Our overall objective is to understand what controls the vulnerability of coastal marshes to risks associated with global change drivers and rising sea levels. Fundamental questions pertaining to coastal wetland vulnerability still need to be addressed. What factors explain spatial and geographic variation in tidal wetland vulnerability? How do short term climatic events (storms) influence the...

Date published: September 2, 2016
Status: Active

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...

Contacts: Deanna Dawson
Date published: August 29, 2016
Status: Completed

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...

Date published: August 29, 2016
Status: Completed

Endocrine Active Effects on Turtle Embryonic Development

The Challenge: Emerging contaminants may be in part responsible for recent endocrine disruption observed in fish in the Chesapeake Bay watershed. Endocrine active compounds implicated in the decline of fish populations may affect other wildlife as well. There are 6 species of turtles and 5 of snakes living within the main-stem and tidal areas of the Bay. As poikilotherms, reptiles are...

Date published: August 26, 2016
Status: Completed

The Eastern Box Turtle at USGS Patuxent Wildlife Research Center, MD

The Challenge: Once common to forest and backyard habitats, the eastern box turtle (Terrapene carolina) has declined sharply. Threats to box turtles include loss and fragmentation of their habitat, road mortality, and commercial taking for the international pet trade. Researchers at the USGS Patuxent Wildlife Research Center have 70 years of records on a turtle population located within a 12...

Date published: July 26, 2016

West Coast Fish Pathogen Now Found in the East

Research by the USGS identified a fish pathogen similar to one previously found in the United States only in Pacific salmonids -- salmon and trout species -- in the eastern United States and in a non-salmon species.

Contacts: Vicki Blazer

The "Best Report" for 2014 is "Hydrogeologic characterization and assessment of bioremediation of chlorinated benzenes and benzene in wetland areas, Standard Chlorine of Delaware, Inc. Superfund Site, New Castle County, Delaware, 2009-12"

Hydrogeologic characterization and assessment of bioremediation of chlorinated benzenes and benzene in wetland areas
Filter Total Items: 201
USGS
May 12, 2010

In the United States, 1 in 4 people live with the risk of earthquakes. The U.S. Geological Survey and its partners are designing innovative tools to better detect earthquakes and share critical information. The involvement of citizens is key, as decisions made before and immediately after an earthquake can save lives and protect property.

USGS
May 6, 2010

Large amounts of nitrogen are stored in the soils of agricultural areas in Nebraska and Maryland, according to a new study by the U.S. Geological Survey and the U.S. Department of Agriculture. Once in the soil, nitrogen can be converted to nitrate, which can readily move to groundwater.

USGS
March 9, 2010

U.S. Geological Survey conservation geneticists will showcase their science at the Department of the Interior on March 10 from 10 a.m. to 2 p.m. (South Interior Building, South Interior Auditorium, 1951 Constitution Ave., NW, Washington, D.C.)

USGS science for a changing world logo
July 30, 2009

During the next 15-20 years, the reservoirs behind all three dams of the lower Susquehanna River in Pennsylvania and Maryland may be filled to capacity with sediments from upstream. If this happens, sediment and nutrient loads entering the Chesapeake Bay are expected to increase. These are among the recent findings of a U.S. Geological Survey (USGS) report.

USGS science for a changing world logo
March 25, 2009

The rain last week did little to alleviate the dry conditions affecting parts of Maryland, Delaware, Virginia, and the District of Columbia. Hydrologic conditions in the Mid-Atlantic region remain abnormally dry, and streamflows continue to decline, according to scientists at the U.S. Geological Survey (USGS) (see national map figure below).

USGS science for a changing world logo
March 23, 2009

Editors and Reporters: The conference runs from March 23-25 at the Baltimore Inner Harbor Marriott, 110 S. Eutaw St. For more info, see the Ecosystem Based Management in the Chesapeake and Other Systems Web site.

USGS
December 18, 2008

U.S. Geological Survey Deputy Director Robert Doyle has been selected as a Distinguished recipient of the Presidential Rank Award, a prestigious award that commends outstanding leadership and long-term accomplishments.

USGS
February 11, 2008

The Chesapeake Bay is affected by multiple factors, ranging from population growth to climate variability, which will challenge the recovery of this important ecosystem.

USGS
February 7, 2008

For several years, scientists have been working to determine why so many male smallmouth bass in the Potomac River basin have immature female egg cells in their testes - a form of intersex. They are closer to finding an answer.

USGS science for a changing world logo
November 6, 2007

You are invited to attend an event co-hosted by The Embassy of Afghanistan and the Afghan-American Chamber of Commerce where the U.S. Geological Survey will unveil a 2007 preliminary assessment of non-fuel mineral resources of Afghanistan. 

USGS
January 17, 2007

The discovery of a high incidence of intersex (male fish exhibiting female characteristics) in smallmouth bass of the Potomac River Basin has prompted an investigation of water quality and wastewater discharge into the upper Potomac, and blood-plasma studies on this fish species.

Maryland - Delaware - Washington D.C. Water Science Center

Maryland -  Delaware - Washington D.C. Water Science Center

5522 Research Park Drive
Catonsville, MD 21228

Phone: 443-498-5500
Fax: 442-498-5510

MD-DE-DC Water

Patuxent Wildlife Research Center

Patuxent Wildlife Research Center

12100 Beech Forest Road
Laurel, MD 20708-4039

Phone: 301-497-5000

Patuxent Research