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2006 ·
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2003
| 2006 |
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USGS Contributes to Understanding Real Estate and Land Economics:
On January 13, USGS economist Richard Bernknopf, together with a University of Pennsylvania colleague,
are presenting talks summarizing current research related to practical economic applications of spatial imagery at the
Homer Hoyt Advanced Studies Institute, Weimer School of Advanced Studies in Real Estate and Land Economics, in Palm Beach,
Florida. Their talks focus on estimating land price for ecological preservation, and the potential applications of
mid-resolution spatial imagery to real estate economics. Joint research being conducted at the USGS-University of
Pennsylvania Spatial Integration Laboratory for Urban Systems is a collaborative effort between the USGS Geography
Discipline and the University of Pennsylvania. (Richard Bernknopf, Menlo Park, CA, 650-329-4951)
1-11-2006
New Postdoc Position in Menlo Park
Team with physical scientists and geographers at USGS to develope new frameworks for assessing risk and guiding public investment decisions.
For more information see the listing in NRC.
Each applicant must submit a research proposal by February 1st that relates to the position. A proposal must be the
original work of an applicant and be approved by an Adviser listed with the opportunity. Before
writing a proposal, however, the applicant is advised to communicate directly with the Adviser, who
can provide more specific information. To apply go to www.national-academies.org/rap.
12-22-2006
A Champion!
Pat S. Chavez, Jr., WGSC Southwestern Geographic Science Team, received a 2006 Manual Lujan, Jr.
Champions award from the Department of the Interior on October 17, 2006. The award honors Hispanic DOI employees
or any employees who have worked towards building Hispanic partnerships; who have encouraged conservation and
preservation of our natural and cultural resources within heavily Hispanic populated communities, or whose
program areas have successfully impacted Hispanic internal and external communities.
Chavez was cited for mentoring students starting their careers with USGS, for helping to establish and for serving
on the Ethnic Minority Advisory Committee in Flagstaff, Arizona, as well as for his outstanding scientific
contributions to the bureau and department.
10-26-2006
USGS Briefs International Conference on Cascadia Hazards:
USGS scientists will be participating in the International Disaster Reduction Conference
(IDRC), August 27-September 1, in Davos, Switzerland, by presenting information about
historic Cascadia subduction zone earthquakes and resultant tsunamis, and discussing
present-day societal vulnerability to the possible occurrence of a significant Cascadia
subduction zone earthquake and an associated tsunami. The 2006 IDRC conference is designed
to continue the vision of the 2005 World Conference for Disaster Risk Reduction and to
deepen the understanding of what is needed to mainstream and integrate risk management
across various organizational fields. The conference is being organized by the Global
Alliance for Disaster Reduction, the Global Disaster Information Network, the United
Nations Educational, Scientific and Cultural Organization, and the United Nations
International Strategy for Disaster Reduction. (Nathan Wood, Vancouver, WA, 360-993-8951).
7-25-2006
USGS Assesses Mangrove Forests in Southeast Asia:
A team of USGS geographers is traveling to Thailand and Malaysia, June 24 - July 8,
to assess coastal mangrove forests and the role they played in mitigating effects of the December, 2004
Indian Ocean tsunami. The scientists are meeting with cooperators at the Asian Institute of Technology,
and will be comparing measurements derived from satellite imagery with ground-based assessments of mangrove
forest height, density, and geographic extent. In Malaysia, the team conducted socio-economic surveys in
villages ajacent to the forests to evaluate the economic role of mangrove forests in local villages and
towns. This project is supported by the USGS Venture Capital Fund. (Bradley Reed, Flagstaff, AZ, 928-556-7029)
6-27-2006
USGS Participates in World Planners Congress for Disasters:
On June 18, USGS economist Richard Bernknopf participated in the World
Planners Congress Roundtable, meeting in Vancouver, Canada, that concentrated on the theme
of "Planning for Disasters". Bernknopf and other panel members discussed planning for public
safety and the development of land-use strategies to reduce the risks of natural hazards.
The session was convened by Natural Resources Canada to examine how to achieve livable and
resilient communities that are exposed to multiple natural hazards such as landslides,
earthquakes, and floods. The assembled panel represented a knowledgeable and diverse set of
professional experiences in hazard vulnerability and risk assessment for communities in Canada,
the United States, and in South America. Drawing upon the presentations of case studies in
all of these locales, the panel engaged in dialog relating to the challenges and opportunities
for combining geological expertise and land use planning experience to improve on the community
perception of risk, and to identify opportunities for planners to consider risk reduction
strategies to enhance public safety and community resilience.
(Richard Bernknopf, Menlo Park, CA, 650-329-4951)
6-20-2006
USGS at Third World Congress of Environmental and Resource Economists:
USGS economist Caroline Hermans is participating in the Third World Congress of
Environmental and Resource Economists, July 3-9, in Kyoto, Japan, by presenting research that
describes how integrating scientific information into societal decision making, and using
analytical group processes, shapes the values and preferences of stakeholders for environmental
goods and services. The Third World Congress is organized by the Society of Environmental
Economics and Policy Studies, the Association of Environmental and Resource Economists, and
the European Association of Environmental and Resource Economists, in cooperation with the
Latin American and Caribbean Association of Environmental and Resource Economists.
(Caroline Hermans, Menlo Park, CA, 650-329-4225)
6-20-2006
Leonard Gaydos interviewed by the BBC
On May 2, USGS Deputy Western Regional Geographer Leonard Gaydos was interviewed
by the BBC World Service radio program The World Today for a reaction to the National
Geography/Roper poll about poor basic geography awareness among young Americans.
(Susan Benjamin, Menlo Park, CA , 650-329-5049)
5-11-2006
Western Region Highlights for the week of March 22-28, 2006
USGS Discusses Natural Hazards at European Geosciences Union Assembly: USGS economist
Richard Bernknopf, Chang-Jo Chung, Natural Resources Canada, and Thomas Glade, University of Bonn,
Germany will convene a session on Science and Societal Decision Making in Hazards and Risks,
April 2-7, at the 2006 European Geosciences Union General Assembly in Vienna, Austria.
The session will discuss the role, influence, and value of scientific information in s
ocietal choices, decisions, and outcomes related to natural hazards. Scientific information
and the potential actions taken by decision makers addressing any issues relating to natural
hazards and risks are expected to improve policy and management outcomes for society.
Decisions depend, in large part, on human preferences and behavior that include many
economic, psychological, and social factors in addition to site-specific natural science
and engineering investigations. Presenters at the session are from the U.S., Canada,
Denmark, Austria, and Japan. (Susan Benjamin, Menlo Park, CA , 650-329-5049)
Measuring Anthropogenic Sierra Nevada Landscape Change: Between 1972 and 2001, regional
demand for raw materials such as water and mineral resources has resulted in anthropogenic
landscape change throughout the Lower Stanislaus Watershed on the western slope of the
Sierra Nevada Mountain Range. Land-use and land-cover change within the watershed is
primarily affiliated with the construction of New Melones Dam, which was completed in
1979. On April 5, USGS scientist Chris Soulard will present information at the 12th Annual
California GIS Conference, in Santa Barbara, CA, about measuring temporal land-cover
change in the Lower Stanislaus Watershed using Landsat satellite imagery. This method is
being applied to document the rates, drivers, and consequences of land-cover change,
which can in turn be used to educate public decision-makers and private citizens on the
impact of manmade reservoirs on ecosystems. (Chris Soulard, Menlo Park, CA , 650-329-4317)
New USGS Website Portrays Accurate San Francisco Bay Area Population Density: USGS
scientists have researched techniques for mapping population density relative to the spatial
distribution of residential land-use, and have used a dasymetric mapping technique to provide
a visual and statistically more accurate representation of population distribution and density
than that represented by U.S. Census aggregated units. Because of the rapid population growth
in the San Francisco Bay region, from 6 million in 1990 to 6.8 million in 2000, spatial analysis
of the nine-county region is necessary in order to conceptualize urban growth patterns essential
for land-use planning and urban growth modeling. This dasymetric mapping technique can be easily
applied to other geographic areas, and is currently being used to study daytime/nighttime
population density along the Oregon Coast for emergency response in the event of a tsunami alert.
Results of work completed for the San Francisco Bay Area, 1990-2000, are available to
download as geospatial layers at
http://geography.wr.usgs.gov/science/dasymetric/ (Rachel Sleeter, Menlo Park, CA, 650-329-4373)
5-11-2006
PERIL NECKLACE
On April 25, USGS researchers participated in a tsunami seminar in Salem, Oregon, organized to
prepare federal, state, and local participants for the upcoming "Pacific Peril 2006" functional
exercise in May. USGS scientists are discussing the possible Cascadia subduction zone earthquake
and tsunami scenario, and societal vulnerability to these threats. Pacific Peril 2006, a three-day
natural disaster training exercise, is a collaborative initiative involving the U.S. Department of
Transportation, Department of Homeland Security/FEMA, the Department of Defense, the United States
Coast Guard, U.S. Army Corps of Engineers, State Departments of Transportation and Emergency
Management from Washington, Oregon, California, and Alaska, the Center for Asymmetric Warfare,
the Washington State and Oregon State Military Departments, and the U.S Navy 3rd Fleet.
(Nathan Wood, Vancouver, WA, 360-993-8951; Craig Weaver, Seattle, WA, 206-553-0627)
5-11-2006
| 2005 |
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On September 30 in Memphis, Tennessee, a multidisciplinary team of USGS geologists, economists,
and geographers will present the initial results of a 2-year effort to develop a GIS-based
decision support system to assist local government agencies in mitigating the risk of a
major earthquake. The project, supported by USGS's Venture Capital Fund, the Earthquake
Hazards program, and the Geographic Analysis and Monitoring program, combines high-resolution
seismic hazard maps, detailed mapping data and aerial photography from USGS, Shelby County, and
the City of Memphis, and USGS's Land Use Portfolio Model, a GIS-based model that allows planners
to compare alternative earthquake-hazard mitigation policies. The initial application of the
project is an analysis of hypothetical mitigation and protection strategies (portfolios) that
compare the benefits and costs of structural mitigation for commercial and industrial structures
at alternative locations for a new bridge across the Mississippi River. (Paul Hearn, Reston, VA, 703-648-6287)
9-15-2005
Estimating community vulnerability to and risk
of natural hazards
On September 22, a team from the Western Geographic Science Center in Menlo Park
will participate in a meeting about estimating community vulnerability to and risk
of natural hazards with respect to future development alternatives and natural hazard
mitigation options in Squamish, British Columbia, Canada. USGS Richard Bernknopf
(economist), Richard Champion (mathematician), Peter Ng (computer scientist) and Anne
Wein (operations research analyst) are coordinating with Geological Survey of Canada
Geologists and Statisticians to provide Squamish planners, and administrative and
emergency response officers with an overview of the USGS - Natural Resources Canada
vulnerability-risk analysis framework. This application of the USGS Land Use Portfolio
Model is an integrated natural / social science Transboundary Risk Project supported
by the Director's Venture Capital Fund. The research effort explores the economic
effects of future development alternatives and hazard mitigation options on community
exposure to natural hazards. At the Squamish meeting, a 20 year flood scenario will be
used to illustrate the steps involved in the analysis and to elicit feedback from the
audience regarding community planning horizon, community risk tolerance, economic
evaluation of potential community losses, and the decision focus. Preliminary results
for multiple natural hazards including floods, earthquakes and debris flow will also be
provided. A subset of the audience will participate in an exercise to scope out specific
hazard scenarios for further analysis and modeling. (Rich Bernknopf, Menlo Park, CA, 650-329-4951)
9-13-2005
Supporting Native American Geographic Information System (GIS) Mapping
USGS is sponsoring the attendance of partners from the Warm Springs, Suquamish, and Coeur d’Alene Tribes at the GIS Indigenous Mapping Conference March 8-11 in Tulsa, Oklahoma. The meeting is designed to bring together a forum of Tribal people interested in mapping, provide mapping and GIS orientation, share solutions to specific Tribal problems, and facilitate discussions of strengthening and expanding the existing network of Tribal Mapping. Frank Roberts from the Coeur d’Alene Tribe is giving a presentation on their work with USGS regarding Landfire processes and fire-fuels modeling. They are providing an overview of the Landfire activities on the Coeur d’Alene Reservation and discussing potential Tribal participation in applying Landfire or Fuels modeling on Tribal lands across the United States. (Tracy Fuller, Boise, Idaho, 208-387-1351)
3-8-2005
Celebrating 125 Years Publication now available on-line
USGS Circular 1274, "Celebrating 125 Years of the U.S. Geological Survey" is now available on-line at: <http://pubs.usgs.gov/circ/2004/1274/2004-1274.pdf>. A sidebar about the 50th anniversary of the Menlo Park campus is on Page 15.
3-7-2005
New WRG Scientific Investigations Map published
Sleeter, Benjamin M. and Halsing, David L., 2005, Results of land cover change detection analysis in and around Cordillera Azul National Park, Peru: U.S. Geological Survey Scientific Investigations Map 2879, scale 1:380,000, 6 sheets.
2-28-2005
Modeling Lake Tahoe Basin Land-Use Changes:
USGS scientists are participating in the annual CalGIS Conference, March 16-18, in Bakersfield, CA, where Mark Hessenflow is presenting research on statistical and computational methods for predicting land-use trends in the Lake Tahoe Basin by using simulated probabilistic maps of potential changes in land-use planning and development patterns. The Tahoe Land-Use Change Model was built as a part of the Tahoe Decision Support System, a tool designed for use by the Lake Tahoe Basin agencies cooperating to measure the impacts and consequences of management and regulatory activities. At the conference, USGS scientists will also be providing information about USGS products and research at an exhibit booth highlighting USGS spatial data resources for California. Conference info: http://www.calgis.org/. (Rachel Sleeter, Menlo Park, CA, 650-329-4373).
2-28-2005
Geography Press Inquiry
USGS geographers Susan Benjamin and Sam Bardelson were interviewed for an article in the March issue of Washington Trails magazine, the monthly publication of Washington Trails Association. Benjamin and Bardelson described changes in mapping technology over the past 50 years and new approaches to delivering map information to the public.
2-24-2005
----------------------------------
Liz Colvard
Program and Information Specialist
USGS Earth Science Information Center
345 Middlefield Rd., MS 532
Menlo Park, CA 94025
650-329-4498 (voice) 650-329-5130 (fax)
ecolvard@usgs.gov
USGS AND LEWIS & CLARK ANNIVERSARY
This year (2005) marks the 200th anniversary of the Lewis and Clark Expedition's travels (1804-1806) into the Western states. The expedition trekked 8,000 miles in 28 months. Their westward route took them up the Missouri River through the newly-acquired Louisiana Purchase, over the Rocky Mountains, and down the Snake and Columbia Rivers to the Pacific Ocean. Their mission was one of scientific, geographic, commercial, agricultural, and ethnographic discovery for the new Nation. In mission and in spirit, the USGS continues what Lewis and Clark began.
The USGS has created numerous websites and products to commemorate this anniversary:
• Visit http://www.usgs.gov/features/lewisandclark.html to see a comprehensive list of Lewis and Clark resources that are available from the USGS.
• A free interagency map titled "Discovering the Legacy of Lewis and Clark" is available in the USGS Earth Science Information Center (ESIC) in Menlo Park, California .
• A beautiful poster titled "Lewis and Clark: A Legacy of Science" is available for purchase from the USGS. The poster can be purchased at the Menlo Park ESIC for $10, or ordered on-line at http://store.usgs.gov/. Shipping is an additional $5. Preview the poster at http://rockyweb.cr.usgs.gov/outreach/mapcatalog/culture.html
• "The Evolving Landscape of the Columbia River Gorge: Lewis and Clark and Cataclysms on the Columbia" by USGS scientist Jim O’Connor was recently published in the Oregon Historical Quarterly (http://www.historycooperative.org/journals/ohq/105.3/index.html). .
• The Building 3 hallway in Menlo Park currently has an exhibit of satellite images compiled by USGS EROS showing modern views of points along the Lewis and Clark trail. This exhibit is also on-line at http://edc.usgs.gov/LewisandClark/
For more information about USGS products or about USGS Lewis and Clark activities, contact the USGS Earth Science Information Center (ESIC) at 1-888-ASK-USGS (1-888-275-8747).
February 15, 2005 - GIS for Natural Hazard Mitigation and Desert Management Policies
On February 15, USGS scientists Lori Dinitz and Amy Mathie will present results of their research combining geographic information systems (GIS) and public policy at the annual GeoTec conference, February 13-16, in Vancouver, British Columbia, Canada. The GeoTec conference, sponsored by GeoTec Media, the publisher of GeoWorld magazine, is a global event spotlighting geospatial technology tools and solutions. Dinitz will be presenting information on a GIS-based decision-support system for evaluating alternative natural hazard mitigation policies, and will discuss a method for applying financial portfolio theory to natural hazard mitigation decision-making. Mathie will present information on evaluating off-highway vehicle effects on public desert lands using GIS, and will discuss the development of a GIS methodology for desert landscape management and the challenges faced in conducting such research. These presentations will provide an international audience with knowledge about some of the USGS research currently underway that integrates science with decision-making policy. (Lori Dinitz, Menlo Park, CA, 650-329-4953; Amy Mathie, Menlo Park, CA, 650-329-5635)
January 25, 2005 - Departmental Land Cover Summit:
USGS scientist Christian Raumann is participating in the first Department of the Interior Land Cover Summit for several Departmental bureaus, hosted by the USGS in Washington DC, Jan. 26-27. Raumann is representing the USGS Western Geographic Science Center, and will be presenting an overview of the diverse scope of research activities being conducted by USGS scientists that focus on the effects of human activity on the landscape, including projects in the Lake Tahoe Basin, Mojave Desert, and Puget Sound. The purpose of the Summit is to promote the integration of land cover research and associated activities throughout the Department, and to expand knowledge about customer uses of land cover information, identify user requirements, and determine any shortcomings and problems associated with current products. The USGS is responsible for formulating and managing many types of land-cover data and seeks to increase the value, usefulness, and effectiveness of this data. (Christian Raumann, Menlo Park, CA, 650-329-5648)
| 2004 |
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December 8, 2004 - WR Geography Highlight--Lidar Mapping Featured in PE&RS
USGS laser terrain (lidar) mapping of the Mount St. Helens area is featured in a highlight article in the January 2005 issue of Photogrammetric Engineering and Remote Sensing (PE&RS), a journal published by the American Society for Photogrammetry and Remote Sensing. A three-dimensional representation of the volcano, using lidar collected for the USGS and its Department of the Interior partners, is featured on the journal cover. USGS geographers Vivian Queija, Jason Stoker, and John Kosovich co-authored the article, entitled Recent U.S. Geological Sruvey Application of Lidar, with input from other scientists across the USGS.
The article highlights a few of the lidar-oriented activities being conducted across USGS disciplines. This article is significant in five ways:
1) it demonstrates the wide variety of research for which the USGS is using lidar data to leverage potential partnerships;
2) it briefly describes some of this cutting-edge research;
3) it publicizes the availability of downloadable lidar data through The National Map and National Elevation Dataset (NED) seamless server;
4) it demonstrates inter-regional USGS cooperation between scientists located in the Northwest Geographic Science Office, Seattle, WA, the EROS Data Center, Sioux Falls, SD, and the Rocky Mountain Mapping Center, Denver, CO; and
5) the article portrays the USGS as a predominant force in research, analysis, and dissemination of high-resolution lidar data. Founded in 1934, the American Society for Photogrammetry and Remote Sensing (ASPRS) is a scientific association seeking to advance knowledge and improve understanding of mapping sciences to promote responsible applications of photogrammetry, remote sensing, geographic information systems (GIS), and supporting technologies.
(Vivian Queija, Seattle WA, 206-220-4565)
July 2004 - USGS Participates in ESRI User Conference:
USGS products and technologies will be highlighted at the International ESRI User Conference in San Diego,CA, Aug. 9-13. USGS scientists will give presentations on topics ranging from The National Map to geologic mapping of the sea floor. USGS booths will feature 125 years of USGS geographic information science, The National Map, remote sensing, USGS digital data, and GIS education resources.
For more information on Oregon partnerships, contact:
Liz Colvard, Menlo Park, CA, 650-329-4498
June 2004 - New federal geospatial data coordination group discussions
The Northwset Geographic Science Team (NGST) is hosting a meeting on June 4, in the Portland, OR, District Office. One half of the meeting is a NAIP orthoimagery presentation by USDA Farm Services Agency, open to anyone in the region who may be interested in learning more about the NAIP program. The second half of the meeting is for representatives of regional federal agencies and State GIS managers to discuss the formation of a broad-based federal geospatial data coordination group.
For more information on Oregon partnerships, contact:
Nancy Tubbs
E-mail: ntubbs@usgs.gov
Portland, OR
Voice: 503-251-3210
May 25, 2004 - Renewal of USGS and Utah Data Sharing Agreement BenefitsThe National Map
 On May 25, 2004, USGS Western Region Geographer Alan Mikuni is representing the USGS in a signing ceremony that will renew a significant data sharing agreement between the State of Utah and Federal agencies that has been a key component in the success of The National Map implementation in Utah. Signatories to the Memorandum of Understanding (MOU) for renewal of the Utah Digital Spatial Data Sharing and Integration Project will include Olene Walker, Governor of Utah, together with representatives from Federal and State agencies. Since 1997, this MOU has been very successful in Utah for helping to coordinate the exchange of geospatial data, and facilitating the coordination and collaboration between the cooperators. The agreement has proven beneficial within these several organizations by being able to pool resources in order to develop and acquire common geospatial datasets, resulting in significant cost savings for these organizations.
For more information on Utah partnerships, contact:
Dave Vincent
E-mail: dmvincent@usgs.gov
Salt Lake City, Utah
Voice: 801-975-3435
May 10, 2004 - A Clarence King Gallery - The First Director of the U.S. Geological Survey
In 1879, Clarence King became the first Director of the U.S. Geological Survey. To learn more about the career accomplishments of our influential first Director and view historical photographs, please see Clarence King.
For more information on WRG Outreach, contact:
Liz Colvard
E-mail: ecolvard@usgs.gov
Menlo Park, CA
Voice: 650-329-4498
 March 11, 2004 - Western Region Geography Seminar
@ Menlo Park, CA USGS campus
"Uncertainty/Reliability of Landslide Hazard Mapping & Risk Assessment"
Thursday, March 11, 2004, 1:00p - 3:00p, Building 3, Menlo Park Auditorium 3240A
Dr. Chang-Jo Chung from the Geological Survey of Canada will discuss the estimation of the probability of landslide occurrence and the reliability of the estimates. The reliability estimate is important in assessing the economic consequences of the landslide risk. The risk assessment techniques will be illustrated with two case studies, one in the La Baie area, Quebec, Canada and the other in the Boeun area, Korea.
View full-sized flyer (pdf)
March 8, 2004 - 2004 California GIS Conference
The USGS participated in the 2004 California GIS Conference (February 18-20) in San Jose, California by giving a 2-hour workshop on The National Map and sharing information through a USGS exhibit booth. The workshop, developed and presented by Christy Talbot and Doug Schenk from the USGS Earth Science Information Center, described the functionality of the different National Map viewers, the data available from each, and how to download the data. Additional information and USGS products were distributed at the exhibit booth.
For more information on WRG Outreach, contact Liz Colvard
E-mail: ecolvard@usgs.gov
Menlo Park, CA
Voice: 650-329-4498
| 2003 |
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 November 2003 - Fact Sheet now available for Geographic Research at Lake Tahoe
Fact sheet number 101-03 is now availble for the Geographic Research at Lake Tahoe project. Lake Tahoe is a natural resource famous for its alpine setting and deep, clear waters. During the last half century, however, human activity in the Lake Tahoe Basin has increased, and significant environmental impacts have been observed and documented, including a loss in lake clarity of about 1 foot per year.
The U.S. Geological Survey's (USGS) Western Geographic Science Center is responding to some of these concerns with two interdisciplinary research projects in the Lake Tahoe Basin, and the USGS is also implementing a Partnership Project for The National Map in the Lake Tahoe area.
View the Lake Tahoe Fact Sheet on-line (1709k pdf)
 October 2003 - Fact Sheet now available for Recoverability and Vulnerability of Desert Ecosystems (RVDE)
Fact sheet number 058-03 is now availble for the Recoverability and Vulnerability of Desert Ecosystems (RVDE) project, which is designed to provide scientific understanding to help conserve and restore threatened desert landscapes. Current research focuses on the Mojave Desert Ecosystem, which is spread over parts of southern Nevada, western Arizona, southwestern Utah, and southeastern California. It is home to over one million people, including the Nation’s fastest growing city, Las Vegas, and is within a day’s drive of 40 million people. Many endangered plants and animals depend on the Mojave ecosystem. It contains four national park units, six major military training bases, and a matrix of BLM and privately owned land. Stewards of our public lands are faced with the need to make sound decisions on land use that will allow for economic, recreational, and military use, while still keeping the desert ecosystem healthy and ensuring the survival of threatened species.
View RVDE Fact Sheet on-line (330k pdf)
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