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USGS Patuxent Wildlife Research Center COASTAL ISSUES AND INFORMATION NEEDS |
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COASTAL ISSUES AND INFORMATION NEEDS
A Summary of the Coastal Issues Symposium held
February 10-11, 1999
as part of the
USGS Patuxent Wildlife Research Center
Annual Science Meeting
Executive Summary
Symposium Objectives and Agenda
NUTRIENT ENRICHMENT OF COASTAL SYSTEMS
PHYSICAL ALTERATIONS OF COASTAL HABITATS
LONG-TERM MONITORING AND RESEARCH ISSUES
APPENDIX - DOI SCIENCE INFORMATION NEEDSThe Patuxent Wildlife Research Center hosts an Annual Science Meeting of Center scientists and Federal, State, and local partners in natural resource management. This meeting is designed to encourage a maximum amount of dialogue among Center scientists and science partners for the purpose of identifying respective capabilities and information needs and capturing emerging issues. The meeting results are used to shape scientific programs at the Center that are highly relevant to natural resource management needs and maintain high standards of professional excellence. Several areas of emphasis are selected for in-depth discussions at each meeting. One area so highlighted at the February, 1999, meeting was the coastal zone. During two, half-day sessions, internationally recognized leaders in coastal ecology joined forces with Department of the Interior coastal land and resource managers to identify key scientific issues, information gaps, and long-term data needs that are relevant within a coastal resource management framework. Although the issues that arose are applicable at national and global scales, the primary focus of discussions was the eastern U.S. The issues that were identified are summarized here. We hope that this information will yield productive partnerships among scientists and managers whose interests, expertise, and jurisdiction coincide in Atlantic and Great Lakes coastal habitats.
The need for a coordinated approach to research and management of coastal ecosystems has never been greater. Continued population growth in the coastal zone and concomitant urban, industrial, and agricultural development threaten natural resources with a host of anthropogenic stressors. Scott Nixon (University of Rhode Island) identified the primary anthropogenic sources of inorganic nitrogen to coastal waters, including fossil fuel combustion, fertilizer application, sewage treatment plant discharge, and septic system runoff. With increasing world populations and demographic shifts to coastal population centers, fertilizing inputs of nitrogen to estuaries and coastal embayments are expected to rise. Unchecked, the ultimate response to nutrient over-enrichment will be increased eutrophication of coastal systems. Barnett Rattner (USGS) described how resident and migratory vertebrate wildlife of Atlantic coast estuaries are also at risk from environmental contaminants. David Burdick (University of New Hampshire) discussed the historic and continued physical alterations to coastal habitats. Direct impacts to salt marsh and seagrass habitats arise from sediment fill or removal associated with upland and nearshore development projects, and indirect effects persist from hydrologic alterations. As described by Jim Allen(USGS), natural processes contributing to shoreline change can exacerbate the effects of human alterations to coastal environments.
Effective preservation and restoration of coastal ecosystems requires a collaborative approach for establishing research and management priorities, conducting necessary investigations, and applying new information. Problems in the coastal zone stem from complex processes interacting across a variety of temporal and spatial scales, and they require integrated, interdisciplinary responses. Bruce Hayden (University of Virginia / National Science Foundation) described how place-based, long-term ecological research can help detect trends in processes and causes for responses that occur on generational time scales. Peter Barnes (USGS/GD) and Peter Weiskel (USGS/WRD) described broad ranging, physical science expertise within USGS for addressing shoreline change and land-to-sea fluxes of water and materials. These capabilities complement the traditional ecological expertise at Patuxent, and Suzette Kimball, USGS/BRD Eastern Regional Chief Biologist, pledged collaboration across USGS Divisions to tackle coastal issues. Linkages with partner bureaus are essential to this process. Representatives of the National Park Service and the Fish and Wildlife Service with responsibilities for coastal lands and resources in the eastern U.S. identified many common themes, concerns, and information needs related to coastal ecosystem management.
This report is organized within overarching categories presented at the Coastal Issues Symposium: Physical Alterations of Coastal Habitats; Nutrient Enrichment: Sources and Ecosystem Responses; Shoreline Change Processes; and Long-term Monitoring and Research. Each issue includes recommendations for future scientific programs, based on information needs presented by partner bureau representatives and discussions among symposium participants. Specific science needs identified by National Park Service and Fish and Wildlife Service representatives are appended with contact information. We hope that this report serves as a springboard for future professional interaction, collaboration, and scientific investigation of coastal ecosystems in the eastern U.S.
Symposium Organizers:
Jim Allen, Janet Keough, Hilary Neckles, Charles Roman
USGS Patuxent Wildlife Research Center
February 10-11, 1999
USGS Patuxent Wildlife Research Center
Laurel, Maryland
SYMPOSIUM OBJECTIVES
Coastal Issues
Identify
key research issues, information gaps, and long-term data |
DOI Land Management Needs
Provide
an opportunity for client agencies (e.g., FWS, NPS) to identify |
Communication and Partnership
Provide
an opportunity to foster communication among BRD coastal |
Strategies
Summarize
the key issues, client needs, and opportunities for |
AGENDA
Wednesday, Feb. 10
2 - 2:10pm SYMPOSIUM INTRODUCTION & OBJECTIVES
Charles Roman
USGS Patuxent Wildlife Research Center - Univ of Rhode Island
Keynote Addresses
2:10 - 2:35 PHYSICAL ALTERATIONS OF COASTAL HABITATS
David Burdick
Jackson Estuarine Laboratory, University of New Hampshire
2:35 - 3:00 NUTRIENT ENRICHMENT: SOURCES AND ECOSYSTEM RESPONSES
Scott Nixon
Graduate School of Oceanography, University of Rhode Island
3:00 - 3:20 Break
3:20 - 3:45 SHORELINE CHANGE PROCESSES
James Allen
USGS Patuxent Wildlife Research Center - Boston
3:45 - 4:10 LONG-TERM COASTAL DATA AND LTER PROGRAMS
Bruce Hayden
University of Virginia and National Science Foundation, Div. of Environmental Biology
USGS Coastal Research Capabilities
4:10 - 4:35 USGS COASTAL AND MARINE GEOLOGY PROGRAM
Peter Barnes
USGS Coastal and Marine Geology Program - Reston
4:35 - 5pm USGS WATER RESOURCES DIVISION
Peter Weiskel
USGS Water Resources Division, Massachusetts-Rhode Island District
Thursday, Feb. 11
Issues and Research Needs: DOI Land Managers
8:00a - 8:10 INTRODUCTION TO CLIENT NEEDS AND PERSPECTIVES
Janet Keough
USGS Patuxent Wildlife Research Center - Laurel
8:10 - 9:10 NPS COASTAL ISSUES AND NEEDS
Carl Zimmerman (Assateague Island National Seashore, MD)
David Manski (Acadia National Park, ME)
Michael Rikard (Cape Lookout National Seashore, NC)
Steve Cinnamon (National Lakeshores, Midwest Regional Office)
9:10 - 9:40 FWS REFUGE ISSUES AND NEEDS
Janith Taylor
US Fish and Wildlife Service, Region 5
9:40 - 10:00 Break
10:00 - 10:40 FWS COASTAL PROGRAMS
Jay Hestbeck
US Fish and Wildlife Service, Region 5
10:40 - 10:50 CONTAMINANTS ISSUES RELATED TO NPS AND FWS UNITS
Barnett Rattner
USGS Patuxent Wildlife Research Center - Laurel
Symposium Summary
10:50 - 11 SUMMARY AND CHARGE FOR THE WORKGROUP
Hilary Neckles
USGS Patuxent Wildlife Research Center - Augusta
1:30p - 4:40 COASTAL BREAKOUT SESSION
Continued discussion of coastal issues
Organizers: James Allen, Janet Keough, Hilary Neckles, Charles
Roman
USGS Patuxent Wildlife Research Center

NUTRIENT ENRICHMENT OF COASTAL SYSTEMS
Issues
Increasing world population and continued settlement of the coastal zone is causing nutrient enrichment of coastal ecosystems worldwide. Residential, agricultural, and urban development associated with burgeoning coastal populations has resulted in increased nutrient levels of both surface and ground water supplies. Anthropogenic sources of nutrient loading include septic systems, sewage treatment plants, and fertilizer application. Atmospheric deposition of nitrogen from fuel emissions also contributes to nutrient enrichment of coastal waters, as does mineralization of organic matter inputs from agriculture and aquaculture operations, sewage waste water, and industrial effluents. Excessive nutrient enrichment causes changes in the structure and function of coastal ecosystems. Common ecosystem responses include increased algal growth, increased community metabolism, and decreased dissolved oxygen concentrations. Ultimate changes in ecosystem structure include shifts in the dominant primary producers and alterations of communities of benthos, shell- and finfish, and higher consumers.
Research Needs Relevant to Resource Management
1. Quantify nutrient loading to coastal waters from surface water, ground water, and atmospheric sources.
2. Develop models to predict nutrient loading from easily measurable parameters within developed and undeveloped watersheds.
3. Determine responses of coastal ecosystems to nutrient loading and identify thresholds for specific habitat responses.
4. Quantify responses of higher trophic levels to coastal nutrient enrichment.
5. Determine adequate buffer distances adjacent to upland development projects to protect wetland and estuarine habitats from excessive nutrient inputs.
6. Quantify the cumulative effects of localized point- and non-point source nutrient inputs on coastal watersheds.
PHYSICAL ALTERATIONS OF COASTAL HABITATS
Issues
Historically, human activities have altered coastal vegetated environments through both direct and indirect mechanisms. Direct physical alterations to salt marsh and seagrass habitats include sediment fill associated with upland development, storm protection, or dredge spoil disposal; sediment removal associated with ditching or dredging projects; and physical disturbance from vessels and aquaculture operations. Indirect alterations result from disruptions to physical processes that contribute to maintaining ecosystem structure and function. Examples of such indirect habitat alterations include restriction of tidal flow with dams, causeways, undersized culverts, and other obstructions; changes in freshwater inputs due to dams, sewer and storm drain outfalls, and other types of upland development; and stabilization of shorelines with groins, jetties, and seawalls. Direct and indirect alterations operate at multiple scales, from the level of individual plants to watersheds. In many cases the long-term and cumulative impacts on the structure, function, and sustainability of coastal habitats are unknown. This type of information is needed to guide restoration efforts and predict the outcomes of specific restoration actions. Ultimately, best management practices must be defined to minimize negative effects of surrounding land use on coastal wetland and estuarine habitats.
Research Needs Relevant to Resource Management
7. Determine the long-term impacts of anthropogenic physical disturbance on the structure, function, and sustainability of coastal habitats
8. Evaluate the cumulative effects of small, incremental alterations on coastal habitats
9. Quantify ecosystem responses to various habitat restoration and enhancement practices
10. Identify ecological indicators, standards, and criteria for evaluating the success of restoration efforts
11. Identify immediate threats to living resources from recreational and commercial activities in the coastal zone (e.g. personal watercraft, tour boats, commercial fishing practices)
12. Quantify the causal relationships between physical habitat alterations and detrimental effects of invasive species
13. Identify critical habitat conditions to protect, restore, and manage rare species that are threatened by physical alterations to coastal ecosystems
LONG-TERM MONITORING AND RESEARCH
ISSUES
Biological and physical structures and processes in the coastal zone are driven to a great extent by long-term and large-scale climate- and ocean- related phenomena. Seasonal and annual variability in storms, ocean temperature, erosion/deposition patterns, shoreline development, and plant and animal community development and succession, are examples of coastal processes that require long-term records to understand. Layered over regional processes are local, human developments, such as revetments, channel dredging, introduction of species, and the like; coastal ecosystems respond to such human interventions over the course of years. Understanding long-term phenomena requires a knowledge of ecosystem variation at many scales - seasonal, annual, interannual, decadal and longer - in order to conserve and manage coastal resources at the appropriate scale. Too often, we mistake interannual variation for effects of human impacts or, at minimum, cannot separate human impacts from natural variation. Long-term data can assist us in separating local from regional and anthropogenic from natural effects.
Coastal ecosystem managers in the Department of Interior and other agencies need to be able to address their management needs at the appropriate scale and distinguish long-term trends from short-term natural variation. Managers need to target efforts on trends that can be managed and improved and to recognize ecosystem responses to long-term effects, such as sea-level rise, that cannot be controlled but may be accommodated. Long-term studies and long-term monitoring can provide managers with the necessary information on variation, scale and trends.
LONG-TERM SCIENCE APPROACHES TO SUPPORT RESOURCE MANAGEMENT
Expand
programs within USGS to aid DOI Partners in long-term |
|
Provide
incentives for scientists to participate in monitoring programs |
|
Host
a series of workshops with Partner Bureaus on the topic of |
|
Establish
a Science Advisory Board for individual or complexes of |
|
Support
long-term GIS platforms for National Parks, Wildlife Refuges, |
|
Develop
a program to acquire LIDAR data for every coastal park and |
APPENDIX - DOI SCIENCE INFORMATION NEEDS
NATIONAL PARK SERVICE
Assateague Island National Seashore
Carl Zimmerman
National Park Service
Assateague Island National Seashore
7206 National Seashore Lane
Berlin, MD 21811
(410) 641-1443 x 213
14. Threats to estuarine water quality from adjacent land use practices and development
Issue: Runoff from residential and agricultural lands adjacent to park may threaten aquatic resources in the park.
Information needs:
Hydrologic and water quality model |
|
Response of fisheries to environmental conditions |
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Atmospheric deposition data |
|
Chemical contaminants in living resources |
|
Remote sensing tools |
|
Nutrient reduction tools |
15. Impacts to coastal processes from adjacent navigation project (Ocean City Inlet)
Issue: A jetty blocks longshore transport of sediment so that the shoreline down-drift of the jetty is sediment starved. A mitigation project involves moving sediment from one side of the inlet to the other.
Information needs:
Automation of geomorphic change data analysis |
|
Post-mitigation habitat assessment |
|
Post-mitigation rare, threatened, and endangered species assessment |
16. Protection and management of rare, threatened, and endangered species
Issue: Information on the biology and ecology of rare, threatened, and endangered species is needed to enhance conservation efforts.
Information needs:
Rare species survey |
|
Seabeach Amaranth reintroduction strategy |
|
Tiger beetle (Cicindela sp.) biology and impact mitigation strategies |
|
Piping plover banding/marking to determine critical habitat conditions |
17. Impacts to island habitats from non-native species
Issue: Several non-native species potentially threaten island ecosystems. One species (feral horses) is actively managed to maintain a low population size.
Information needs:
Census methods for Sika Deer |
|
Genetic variability in feral horse populations |
|
Nutria surveillance |
|
Impacts of horses on freshwater ponds |
|
Sika Deer grazing effects |
18. Threats from recreational and commercial activities within park boundaries
Issue: Assateague Island National Seashore receives heavy beach use; some areas allow ORVs and some are restricted to foot traffic. Commercial fishing (hydraulic clamming) also occurs within Park boundaries.
Information needs:
Assess
benefits to submerged Aquatic vegetation (SAV) of |
|
Personal watercraft effects |
|
Fisheries catch and effort data |
|
Hydraulic clamming impacts on SAV |
|
Fisheries management plans |
19. Other issues
Information needs:
Baseline inventories - invertebrates, groundwater |
|
Long-term monitoring program development - groundwater, herptiles |
|
Mosquito ditch restoration |
Acadia National Park
David Manski
National Park Service
Acadia National Park
P.O. Box 177
Bar Harbor, ME 04609
1. Air pollution
Issue: Acadia National Park is a Class 1 airshed under the Clean Air Act. Because of Acadia=s unique location in relation to patterns of continental air flow the Park is a recipient of much air pollution. Determining the biological ramifications of airborne pollutants, including ozone, sulfur dioxide, nitrogen oxides, volatile organic compounds, mercury, and acid precipitation on Park ecosystems is a high priority.
Information needs:
How
does long-term ozone exposure |
|
How
do elevated mercury concentrations |
|
Do
PCB contaminant burdens in Park bald |
|
What
other atmospherically transported |
|
How
do Park watersheds, forests, and |
|
What
are the effects of episodic |
|
How
does fire influence the fate of |
|
Are Park biota at risk from UV exposure? |
2. Increasing development
Issue: Continued residential development adjacent to the Park boundary potentially threatens Park resources.
Information needs:
How
do Park coastal wetlands respond to |
|
What
are the ecological consequences for |
3. Conservation of biological diversity - plants
Issue: Acadia supports a very diverse flora due to its location at the intersection of two biogeographic regions and its topography. Many plant species in the Park are considered locally rare and several are listed as globally rare. Although inventories of Park flora have been completed, basic information on factors controlling the distribution and abundance of rare species and communities is lacking. Invasive plant species pose a significant threat to native plant communities in the Park.
Information needs:
| Some of the
rarest Park plants are abundant in other parts of Maine or New England. Should the NPS be concerned about their rarity in Acadia National Park? What is the Park=s role in protecting rare plants? |
Should we be trying to protect certain |
|
What are the statistically appropriate |
|
What
are cost-effective techniques to |
|
How
do sub-alpine plant communities and |
|
What
are the long-term effects of |
4. Conservation of biological diversity - animals
Issue: Good baseline inventory data exist on some groups of animals, including large mammals, birds, and invertebrates. The historic invertebrate records are particularly extensive, from nearly 30-years of invertebrate surveys in the first part of this century. Baseline data on other animal groups is lacking (estuarine and anadromous fish) or incomplete (amphibians and reptiles). Information on the ecology of various species is also needed.
Information needs:
Have
there been changes in the |
|
What
are the effects of landscape |
|
What
are the most cost-effective |
|
How
do harlequin duck survival rates vary |
|
What
is the status of common eiders |
|
What
birds nest in Park estuaries? |
|
What raptors nest in the Park? |
How
have beaver populations responded |
|
What
are the effects of fish stocking |
5. Social science
Issue: Acadia receives 3 million visitors annually. Information needs focus on maintaining high quality visitor experiences while protecting park resources.
Information needs:
What
are the most effective |
|
What
are appropriate visitor carrying |
|
What
are appropriate visitor carrying |
|
How
satisfied are visitors with the |
Apostle Islands National Lakeshore
Jerry Banta, Superintendent
Julie Van Stappen, Resource Management specialist
Route 1, Box 4
Bayfield, WI 54814
(715) 779-3397
Issues and Information Needs:
Coastal
dynamics and sand deposition -- |
|
Contaminants
-- bioaccumulation in eagles |
|
Commercial
fishing waste and |
Indiana Dunes National Lakeshore
Dale Engquist, Superintendent
Bob Daum, Resource Management Specialist
1100 N. Mineral Springs Road
Porter, IN 46304
(219) 926-7561
Issues and Information Needs:
Create
standardized E. coli monitoring |
|
Create
standardized protocols to monitor |
|
Determine
best methods of controlling |
Determine
best methods of monitoring |
|
Study
biological impacts, water quality |
|
Determine
best methods for the |
|
Examine
the genotypes of selected |
|
Assist Park with shoreline erosion studies |
Isle Royale National Park
Doug Barnard, Superintendent
Jack Oelfke, Chief, Resource Management
800 E. Lakeshore Drive
Houghton, MI 49931-1895
(906) 482-0986
Issues and Information Needs:
Impacts of motorized recreation on other recreationists |
|
Identification of coastal brook trout habitat |
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Impacts of hydrocarbon emissions from boats |
Pictured Rocks National Lakeshore
Grant Petersen, Superintendent
Brian Kenner, Chief, Resource Management
P.O. Box 40
N8391 Sand Point Road
Munsing, MI 49862
(906) 387-2607
Issues and Information Needs:
Impacts of motorized recreation on other recreationists |
|
Impacts of boats on loons, disturbance from tour boats |
|
Monitoring of colony nesting birds |
|
Human
impacts on colony nesting birds, effects of tour |
Sleeping Bear Dunes National Lakeshore
Ivan Miller, Superintendent
Steve Yancho, Resource Management specialist
9922 Front Street
Empire, MI 49630-9797
(616) 326-5134
Issues and Information Needs:
Coastal dynamics and dune failure |
|
Piping plovers - habitat identification, predation, nest success |
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User conflict - motorized recreation, impacts on other recreationists |
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Dune erosion/geomorphology |
|
Timing of precipitation and erosion |
|
Water quality |
Southeastern Coastal Parks (Cape Hatteras National Seashore, Cape Lookout National Seashore, Cumberland Island National Seashore, Canaveral National Seashore, Biscayne National Park)
Michael Rikard
Cape Lookout National Seashore
131 Charles Street
Harkers Island, NC 28531
(252) 728-2250
1. Physical coastal processes
Issue: Dredging, groins, jetties, and beach nourishment programs alter natural sediment transport processes and affect Park resources.
Information needs:
Oregon Inlet (Cape Hatteras National Seashore) |
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Cape Hatteras lighthouse |
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Drum Inlet (Cape Lookout National Seashore) |
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Effects
of Naval Base operations on Cumberland |
|
Historic structures (Fort Sumpter and Port Pulaski) |
2. Water quality
Issue: Activities adjacent to Park boundaries may affect Park aquatic resources.
Information needs:
Biscayne National Park |
|
Canaveral Mosquito Lagoon |
|
Effects of commercial fishing |
3. Ground water withdrawal
Issue: Withdrawal of ground water in support of adjacent developed areas may threaten Park resources.
Information needs:
Cape Hatteras National Seashore |
4. Protection and management of rare, threatened, and endangered species
Issue: Information on the biology and ecology of rare, threatened, and endangered species is needed to enhance conservation efforts.
Information needs:
Sea turtles vs. native raccoons |
|
Piping plovers |
|
Sea beach amaranth |
5. Impacts to island habitats from non-native species
Issue: Several non-native or invasive species potentially threaten island ecosystems.
Information needs:
Feral pigs at Cumberland Island National Seashore |
|
Feral
horses at Cumberland Island and Cape Lookout |
|
Feral cats |
|
Nutria |
|
Plants - Phragmites |
6. Visitor use
Issue: Recreational activities may threaten Park resources.
Information needs:
Effects of off-road vehicles |
|
Effects of personal watercraft |
|
Effects of hunting and fishing |
7. Inventory and monitoring of Park resources
Issue: Basic information on the status and trends of Park resources is needed to guide conservation and management decisions.
Information needs:
Coastal processes |
|
Vegetation |
|
Wildlife |
US FISH AND WILDLIFE SERVICE
National Wildlife Refuges in the Northeast
Jan Taylor
US Fish and Wildlife Service
336 Nimble Hill Road
Newington, MH 03801
(603) 431-5581
1. Mosquito control issues
Issue: Application of chemicals for mosquito control may affect non-target aquatic invertebrates and other wildlife. Past marsh manipulation for mosquito control has altered the structure of saltmarsh habitat.
Information needs:
Effects
of mosquito control chemicals on |
|
Impacts
of chemical application on other |
|
Selection
of appropriate management in |
|
Effects
of management on site selection |
2. Coastal restoration techniques compatible with objectives for USFWS Trust Resources and mosquito control
Issue: Restoration activities in current use include Open Marsh Water Management (OMWM) as defined by the USFWS. Information on ecosystem responses of coastal wetlands to OMWM and other restoration activities is needed.
Information needs:
Hydrologic,
physical, and ecological |
|
Determination
of standards and criteria |
|
Coastal
wetland tours for increased |
3. Land use practices in the coastal zone
Issue: Increasing development, public use, and recreational interest in the coastal zone may threaten wildlife resources.
Information needs:
Effects
of horseshoe crab harvest on |
Lack
of methods for monitoring |
|
Effects of bulk-heading projects |
|
Effects
of recreational activities on |
|
Unknown
buffer distances adjacent to |
4. Coastal migratory bird issues
Issue: Information on the biology and ecology of migratory birds is needed to enhance management and conservation efforts.
Information needs:
Possible
effects of herring and great |
|
Identification
of important foraging |
|
Availability
of fish stocks from one year |
|
Effects of snow goose eat-outs |
Ecological Services Programs in the Northeast
Susan Essig
US Fish and Wildlife Service
300 Westgate Center Drive
Hadley, MA 01035-9589
(413) 253-8611
1. Wildlife use of seasonally saturated wetlands on the coastal plain
Issue: From New Jersey south on the Atlantic Coast, the coastal plain is characterized by wet flatwoods dominated by loblolly pine and other species, including various hardwoods. Many of these wetlands are isolated and are not currently regulated under Federal law. USFWS has trust responsibilities for wetlands in general, and for recovery of the Delmarva fox squirrel, an endangered species that uses this particular type of wetlands.
Information needs:
What
species are at risk due to unregulated development |
|
To what extend do wildlife rely on these drier-end wetlands? |
2. Buffers for wildlife protection
Issue: Many wetland and riverine restoration projects are undertaken annually by the USFWS, NRCS, EPA, and US Army Corps of Engineers, both to improve the integrity of coastal watersheds and to mitigate for permitted wetland conversions. However, protocols do not exist for the types and widths of upland buffers that should be included in stream reforestation or wetland restoration projects.
Information needs:
What
are adequate sizes of buffers |
|
How
dependent are wetland wildlife on |
3. Appropriate level of monitoring for wetland restoration or creation projects
Issue: Despite the investment of Federal funding in wetland restoration and, to a lesser amount, creation, the preponderance of effort is expended on determining areas suitable for restoration, securing any necessary permits, and the actual restoration activity. Very little attention has been given to monitoring in either the restoration or regulatory (i.e. restoration as compensatory mitigation) arenas. It is critical that an appropriate level of monitoring be instituted to ensure that projects are meeting their scientific objectives.
Information needs:
What
hydrologic indicators should be |
|
What
vegetation indicators should be |
|
What
is the appropriate longevity of a |
4. Cumulative impacts of coastal development
Issue: Degradation of estuarine and nearshore habitats is a product of numerous small-scale development projects that incrementally affect water quality and aquatic resources. The cumulative impacts of such small-scale alterations are poorly understood.
Information needs:
What
are the cumulative effects of |
5. Essential components of watersheds
Issue: Coastal watersheds in the Northeast are generally degraded to varying extents. Indicators of general ecosystem health should be developed to help decision makers prioritize restoration projects.
Information needs:
What
are the characteristics of an |
|
What
characteristics must be maintained |
To
what extent can a watershed be |
6. Habitat requirements for living resources
Issue: The Chesapeake Bay Federal Interagency Program published AHabitat Requirements for Chesapeake Bay Living Resources@ in 1991. Since this time, similar characterizations have been done for other estuaries.
Information needs:
Augment
existing literature on species |
7. Species at risk
Issue: Proactive strategies are needed to reverse species= declines and preclude the need for listing under the Endangered Species Act.
Information needs:
Ecology of juvenile Atlantic sturgeon |
|
Survey
of Chesapeake Bay tributaries |
|
Status
of population of the rare skipper, |

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