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One of the major strengths of the Northeast Area is the enthusiasm and commitment of our scientists to produce the type of high quality science that the USGS is known for. Working together with our partners across the nation, we have the ability to provide complete, integrated and holistic environmental information that will produce the best results that we can achieve.

Filter Total Items: 140
Young Parent-reared Whooping Crane, Grus americana, being released
Date Published: December 19, 2016
Status: Completed

The Release of Parent-reared Whooping Crane Colts into the Eastern Migratory Population

The Challenge: Whooping cranes have been successfully introduced using costume rearing techniques in either a direct autumn release or in an ultralight led migration from Wisconsin to Florida. In Florida, we have also released parent-reared whooping cranes. Not much is known about the learning that takes place in this K-selected species over the almost one year that the young whooping crane...

BBS Observer along Hughesville, MD BBS route (Photo Credit: Heather Martley)
Date Published: December 19, 2016
Status: Active

Implementing Cross Validation Approaches for Model Selection and Evaluating Goodness of Fit in Complex Hierarchical Models

It is (relatively) easy to construct complex hierarchical models for analysis of the North American Breeding Bird Survey (BBS), but deciding which model best describes population change is difficult.  We are developing methods for model selection for BBS and other important survey data sets, and using them to refine our estimates of population change from this important survey.

Black Duck, Anas rubripes, Breeding Range Map
Date Published: December 19, 2016
Status: Active

Population Change and Abundance of Black Ducks and Mallards in Eastern North America

The boreal forest in the northeastern United States and eastern Canada contains most of the breeding range of the American black duck (Anas rubripes).  We collaborate with scientists from the U. S. Fish and Wildlife Service to design and analyze waterfowl surveys in this large and often inaccessible area.

Population Change and the BBS
Date Published: December 19, 2016
Status: Active

Design and Analysis of Surveys for Estimation of Temporal and Spatial Change in Animal Populations

Designing and analyzing large-scale animal surveys is an important focus of our research.  Although we conduct research into analysis methods for many surveys, the primary focus of this project is to conduct analyses and develop web-based summaries of data from the North American Breeding Bird Survey (BBS).

Survival Probability
Date Published: December 19, 2016
Status: Active

Hierarchical Models of Animal Abundance and Occurrence

The Challenge: Research goals of this project are to develop models, statistical methods, sampling strategies and tools for inference about animal population status from survey data. Survey data are always subject to a number of observation processes that induce bias and error. In particular, inferences are based on spatial sampling – we can only ever sample a subset of locations where species...

Spatial Capture-Recapture by Royle,Chandler, Sollmann, & Gardner
Date Published: December 19, 2016
Status: Active

Spatial Capture-Recapture Models to Estimate Abundance and Density of Animal Populations

The Challenge: For decades, capture-recapture methods have been the cornerstone of ecological statistics as applied to population biology.  While capture-recapture has become the standard sampling and analytical framework for the study of population processes (Williams, Nichols & Conroy 2002) it has advanced independent of and remained unconnected to the spatial structure of the population...

Weddell seal pup and mom
Date Published: December 19, 2016
Status: Active

Hierarchical Models for Estimation of Population Parameters

The Challenge: Much of wildlife research consists of the description of variation in data. Some of the variation results from spatial and temporal change in populations, while some results from biologically irrelevant sampling variation induced by the process of data collection. Distinguishing relevant from irrelevant variation is the first task of statistical analysis, but the job does not...

Dwarf crocodiles, Osteolaemus tetraspis
Date Published: December 19, 2016
Status: Active

Development of Statistical Methods for Biological Applications

The Challenge: Wildlife science and management are guided by data, and it is unquestionably the case that the greatest success occurs when good data are analyzed by good statistical methods.

Black-tailed prairie dog mortality
Date Published: December 19, 2016
Status: Active

Characterization of Avian Hazards Following Chlorophacinone Use for Prairie Dog Control

The Challenge: Black-tailed prairie dogs are considered a keystone species for the prairie habitat. Many avian species are associated with black-tailed prairie dogs (Cynomys ludovicianus) in winter. Raptors feed on prairie dogs and non-raptor avian species forage within prairie dog colonies.  However prairie dogs are also considered agricultural pests. The first-generation anticoagulant...

USGS-PWRC population modeling software web-page
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
Shenandoah Salamander (Plethodon shenandoah)
Date Published: December 9, 2016
Status: Active

Managing the Extinction Risk of the Shenandoah Salamander

The Shenandoah salamander is an endangered salamander that is at risk of extinction due to its small, high-elevation range, competition with the co-occurring red-backed salamander, and the predicted future climate in the Appalachian mountain range. We are working with multiple partners to understand the current status of the species, predict future extinction risk, and engage stakeholders in a...

North American Amphibian Monitoring Program (NAAMP)
Date Published: December 8, 2016
Status: Completed

North American Amphibian Monitoring Program

The North American Amphibian Monitoring Program (NAAMP) was a collaborative citizen science effort between the US Geological Survey (USGS) and 26 partners (state agencies, universities, and nonprofit organizations) for monitoring calling amphibian populations over much of the eastern and central United States.  Initiated in 1997, in response to needs set forth by the Declining Amphibian...

Filter Total Items: 85
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Year Published: 2007

Relation of Chlorofluorocarbon Ground-Water Age Dates to Water Quality in Aquifers of West Virginia

The average apparent age of ground water in fractured-bedrock aquifers in West Virginia was determined using chlorofluorocarbon (CFC) dating methods. Since the introduction of CFC gases as refrigerants in the late 1930s, atmospheric concentrations have increased until production ceased in the mid-1990s. CFC dating methods are based on production...

Kurt, J.; Kozar, Mark D.
Relation of Chlorofluorocarbon Ground-Water Age Dates to Water Quality in Aquifers of West Virginia; 2007; SIR; 2006-5221; McCoy; Kurt J.; Kozar, Mark D.

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Year Published: 2006

The Virginia Coastal Plain Hydrogeologic Framework

A refined descriptive hydrogeologic framework of the Coastal Plain of eastern Virginia provides a new perspective on the regional ground-water system by incorporating recent understanding gained by discovery of the Chesapeake Bay impact crater and determination of other geological relations. The seaward-thickening wedge of extensive, eastward-...

McFarland, Randolph E.; Scott, Bruce T.
The Virginia Coastal Plain Hydrogeologic Framework; 2006; PP; 1731; McFarland, E. Randolph; Bruce, T. Scott

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Year Published: 2006

Drainage Areas of Selected Streams in Virginia

Drainage areas were determined for more than 1,600 basins in the three major river basins of Virginia -- the North Atlantic Slope, South Atlantic Slope, and Ohio River Basins. Drainage areas range from 0.004 square mile to 7,866 square miles. A geographic information system was used to digitize and store data associated with the drainage basins....

Hayes, Donald C.; Wiegand, Ute
Drainage Areas of Selected Streams in Virginia; 2006; OFR; 2006-1308; Hayes, Donald C.; Wiegand, Ute

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Year Published: 2006

Ground-water quality in unmined areas and near reclaimed surface coal mines in the northern and central Appalachian coal regions, Pennsylvania and West Virginia

Findings are presented from investigations during 1996-1998 by the U.S. Geological Survey National Water-Quality Assessment Program. Ground-water quality in 58 wells downgradient of reclaimed surface coal mines is compared to ground-water quality from 25 wells in unmined areas (background concentrations) in the bituminous coal fields of the...

McAuley, Steven D.; Kozar, Mark D.
Ground-Water Quality in Unmined Areas and Near Reclaimed Surface Coal Mines in the Northern and Central Appalachian Coal Regions, Pennsylvania and West Virginia; 2006; SIR; 2006-5059; McAuley, Steven D.; Kozar, Mark D.

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Year Published: 2006

Hydrogeology, Aquifer Geochemistry, and Ground-Water Quality in Morgan County, West Virginia

Private and public wells throughout Morgan County, W. Va., were tested to determine aquifer hydraulic, geochemical, and water-quality characteristics. The entire study area is located in the Valley and Ridge Physiographic Province, a region of complex geologic structure and lithology. Aquifers in the study area are characterized by thin to thick...

Boughton, Carol J.; McCoy, Kurt J.
Hydrogeology, Aquifer Geochemistry, and Ground-Water Quality in Morgan County, West Virginia; 2006; SIR; 2006-5198; Boughton, Carol J.; McCoy, Kurt J.

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Year Published: 2006

Base-flow yields of watersheds in the Berkeley County area, West Virginia

Base-flow yields at approximately 50 percent of the annual mean ground-water recharge rate were estimated for watersheds in the Berkeley County area, W.Va. These base-flow yields were determined from two sets of discharge measurements made July 25-28, 2005, and May 4, 2006. Two sections of channel along Opequon Creek had net flow losses that are...

Evaldi, Ronald D.; Paybins, Katherine S.
Base-flow yields of watersheds in the Berkeley County area, West Virginia; 2006; DS; 216; Evaldi, Ronald D.; Paybins, Katherine S.

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Year Published: 2006

Water resources data Virginia water year 2005 Volume 1. Surface-water discharge and surface-water quality records

Water-resources data for the 2005 water year for Virginia includes records of stage, discharge, and water quality of streams and stage, contents, and water quality of lakes and reservoirs. This volume contains records for water discharge at 172 gaging stations; stage only at 2 gaging stations; elevation at 2 reservoirs and 2 tide gages; contents...

Wicklein, Shaun M.; Powell, Eugene D.; Guyer, Joel R.; Owens, Joseph A.
Water resources data Virginia water year 2005 Volume 1. Surface-water discharge and surface-water quality records; 2006; WDR; VA-05-1; Wicklein, Shaun M.; Powell, Eugene D.; Guyer, Joel R.; Owens, Joseph A.

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Year Published: 2006

Physical habitat classification and instream flow modeling to determine habitat availability during low-flow periods, North Fork Shenandoah River, Virginia

Increasing development and increasing water withdrawals for public, industrial, and agricultural water supply threaten to reduce streamflows in the Shenandoah River basin in Virginia. Water managers need more information to balance human water-supply needs with the daily streamflows necessary for maintaining the aquatic ecosystems. To meet the...

Krstolic, Jennifer L.; Hayes, Donald C.; Ruhl, Peter M.
Physical habitat classification and instream flow modeling to determine habitat availability during low-flow periods, North Fork Shenandoah River, Virginia; 2006; SIR; 2006-5025; Krstolic, Jennifer L.; Hayes, Donald C.; Ruhl, Peter M.

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Year Published: 2006

Channel gains and losses in the Opequon Creek watershed of West Virginia, July 25-28, 2005

Discharge measurements were made during July 25-28, 2005, in streams and springs and at a wastewater-treatmentplant outfall in the Opequon Creek watershed of West Virginia to describe surface-water resources during low-flow. The greatest spring discharge measured was 6,460 gallons per minute, but 11 of 31 springs inspected were not flowing. Stream...

Evaldi, Ronald D.; Paybins, Katherine S.
Channel gains and losses in the Opequon Creek watershed of West Virginia, July 25-28, 2005; 2006; DS; 179; Evaldi, Ronald D.; Paybins, Katherine S.

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Year Published: 2006

Water resources data Virginia water year 2005 Volume 2. Ground-water level and ground-water quality records

Water-resources data for the 2005 water year for Virginia consist of records of water levels and water quality of ground-water wells. This report (Volume 2. Ground-Water-Level and Ground-Water-Quality Records) contains water levels at 349 observation wells and water quality at 29 wells. Locations of these wells are shown on figures 3 through 8....

Wicklein, Shaun M.; Powell, Eugene D.; Guyer, Joel R.; Owens, Joseph A.
Water resources data Virginia water year 2005 Volume 2. Ground-water level and ground-water quality records; 2006; WDR; VA-05-2; Wicklein, Shaun M.; Powell, Eugene D.; Guyer, Joel R.; Owens, Joseph A.

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Year Published: 2001

Reconnaissance of Stream Geomorphology, Low Streamflow, and Stream Temperature in the Mountaintop Coal-Mining Region, Southern West Virginia, 1999-2000

The effects of mountaintop removal coal mining and the valley fills created by this mining method in southern West Virginia were investigated by comparing data collected at valley-fill, mined, and unmined sites. Bed material downstream of valley-fill sites had a greater number of particles less than 2 millimeters and a smaller median particle size...

Wiley, Jeffrey B.; Evaldi, Ronald D.; Eychaner, James H.; Chambers, Douglas B.
Reconnaissance of Stream Geomorphology, Low Streamflow, and Stream Temperature in the Mountaintop Coal-Mining Region, Southern West Virginia, 1999-2000; 2001; WRI; 2001-4092; Wiley, Jeffrey B.; Evaldi, Ronald D.; Eychaner, James H.; Chambers, Douglas B.

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Year Published: 1996

Water Resources Data, Virginia, Water Year 1995, Volume 1. Surface-Water Discharge and Surface-Water Quality Records

White, R.K.; Hayes, Donald C.; Eckenwiler, M.R.; Belval, D.L.; Herman, P.E.
Water Resources Data, Virginia, Water Year 1995, Volume 1. Surface-Water Discharge and Surface-Water Quality Records; 1996; WDR; VA-95-1; White, R. K.; Hayes, D. C.; Eckenwiler, M. R.; Belval, D. L.; Herman, P. E.

Filter Total Items: 167
September 30, 2016

Importing a TRDI SxS Pro Measurement into SVMobile

In this video, we will discuss how to import a TRDI SxS Pro measurement file into SVMobile. Note: Use of trade names is for descriptive purposes only, and does not imply endorsement by the USGS. For additional videos in this series, visit the following link: https://www2.usgs.gov

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September 30, 2016

Collecting Open Water Midsection ADCP Measurements in TRDI SxS Pro

In this video, we will demonstrate how to collect data at a station as part of an open water midsection ADCP measurement in TRDI SxS Pro. Note: Use of trade names is for descriptive purposes only, and does not imply endorsement by the USGS. For additional videos in this series, visit the following link: 

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August 31, 2016

The US Interagency Elevation Inventory (USIEI) (Lesson 11a)

Lesson 11a: The US Interagency Elevation Inventory (USIEI) - This video demonstrates how to use the USIEI application to zoom, view footprints and attributes for existing topographic and bathymetric data and download the inventory to navigate to sites where the data can be downloaded. For the complete listing of videos part of the 'Using The National Map Products and

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August 31, 2016

Creating a KML file and Shapefile (Lesson 11c)

Lesson 11c: Creating a KML file and Shapefile - In this lesson, you will learn how to create a KML file for your area of interest in Google Earth, and how to create a shapefile using the SeaSketch Interagency Elevation and Bathymetry Coordination site.

August 31, 2016

Using SeaSketch to View 3DEP Lidar Areas of Interest (Lesson 11d)

Lesson 11d: Using SeaSketch to View 3DEP Lidar Areas of Interest - In this lesson you will learn how to zoom to your area of interest and view the footprints of existing and proposed topographic lidar projects. For the complete listing of videos part of the 'Using The National Map Products and Services' training, visit this link:

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August 31, 2016

Using the 3DEP BAA —Public Areas of Interest Project Collector Tool

Lesson 11b: Using the 3DEP BAA- Public Areas of Interest Project Collector Tool - In this lesson, you will learn how to use the public areas of interest project collection tool to add your lidar project to the SeaSketch Demonstration Site for Federal Mapping Data Acquisition Coordination. 

2 men leaning over boat holding Automomous Underwater Vehicle (AUV)
August 21, 2016

USGS Scientists launching an autonomous underwater vehicle (AUV).

USGS Scientists launching an autonomous underwater vehicle (AUV)

An AUV can provide high spatial resolution of water-quality characteristics; such as, temperature, specific conductance, dissolved oxygen, pH, turbidity, chlorophyll, and blue-green algae. The instrument can also provide bathymetry data, water velocity profiles, and side-scan sonar

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Image shows a tall, triangular gray stone surrounded by grass and trees
July 20, 2016

Barre Granite

Granite is an igneous rock that we’ve used for building materials for thousands of years. It’s name comes from the Latin word “granum,” meaning “grain,” which refers to the grains of quartz and feldspar that define granite. This one is from the Barre formation in Vermont.

Image shows a silver benchmark set in concrete
July 20, 2016

USGS National Center Benchmark

A USGS benchmark at the USGS National Center.

Image shows a detail of the texture of marble
July 20, 2016

Cockeysville Marble

Marble is a famous metamorphic rock known for its use in sculpture and architecture. This particular marble came from the Campbell Quarry in Texas, Maryland.

Attribution: Northeast
Image shows detail of dark crystals in marble
July 20, 2016

Diopside Crystals

Diopside crystals are made up of Magnesium, Calcium, Silicon and Oxygen, and are usually found in metamorphic rocks. These crystals have developed in some Cockeysville Marble from Texas, Maryland.

Attribution: Northeast
Image shows a large gray stone in shade, surrounded by gravel and grass
July 20, 2016

Coarse Diabase

Diabase is a mafic (meaning high in magnesium and iron), igneous rock that usually forms below the Earth’s surface. This particular one has large amounts of augite and labradorite minerals, and comes from the Lucke Quarry, which is southeast of Leesburg, VA.

Attribution: Northeast
Filter Total Items: 78
USGS
October 22, 2014

Landscape change in Pennsylvania's Cameron, Clarion, Elk, Forest, Jefferson, McKean, Potter, and Warren counties resulting from construction of well pads, new roads and pipelines for natural gas and coalbed methane development is being documented to help determine the potential consequences for ecosystems and wildlife, according to a new U.S. Geological Survey report.

USGS
August 4, 2014

Vital coastal storm-tide information needed to help guide storm response efforts following major storms affecting District of Columbia will be more accessible than ever due to a new monitoring network the U.S. Geological Survey is currently building.

USGS
August 4, 2014

Vital coastal storm-tide information needed to help guide storm response efforts following major storms affecting Maryland will be more accessible than ever due to a new monitoring network the U.S. Geological Survey is currently building.  

USGS
May 27, 2014

Flooding in coastal areas bordering Great South Bay, N.Y. and Barnegat Bay, N.J. caused by winter storms that occurred following Hurricane Sandy was not influenced by changes Sandy made to barrier islands or other bay features, according to a new U.S. Geological Survey study.

USGS
April 9, 2014

Oyster aquaculture in the Potomac River estuary could result in significant improvements to water quality, according to a new NOAA and U.S. Geological Survey study published in the journal Aquatic Geochemistry.

USGS science for a changing world logo
February 12, 2014

Recording bats' echolocation "calls" is the most efficient and least intrusive way of identifying different species of bats in a given area, providing insight into some populations that have been decimated by white-nose syndrome.

Filter Total Items: 136