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U.S. Geological Survey, Greater Everglades Priority Ecosystems Science (GE PES)
Fiscal Year 2005 Study Work Plan
Study Title: Ecological Models for Evaluating Effects of Restoration Alternatives on Coastal Ecosystems of Southwest Florida
Overview & Objective(s):
The objectives of this project are to develop and apply forecasting models to evaluate the impacts of CERP projects on ecological attributes selected from the conceptual models developed for coastal ecosystems as part of the SWFFS.
Project Background and Relation to CERP: The SWFFS is a component of the Comprehensive Everglades Restoration Plan (CERP). The SWFFS will result in an independent but integrated implementation plan for CERP projects. The SWFFS will provide a framework to address the health and sustainability of aquatic systems. This includes water quantity and quality, flood protection, and ecological integrity. The SWFFS was initiated in recognition of the fact that there were additional water resource issues (needs, problems, and opportunities) within southwest Florida that were not being addressed directly by CERP. A purpose of the SWFFS is to identify alternatives that address those issues in the study area. The purpose of this project is to evaluate the effects of those alternatives on coastal systems of southwest Florida.
Specific Relevance to Major Unanswered Questions and Information Needs Identified: (Page numbers below refer to DOI Science Plan.)
Relevance to DOI science plan: The study supports Lower West Coast projects in the DOI science plan (specifically: Southwest Florida Feasibility Study and C-43 Basin Storage Reservoir) by (a) developing stress-response models of habitat for coastal species selected during Caloosahatchee conceptual modeling and (b) developing integrated assessment tools to support landscape level decision-making.
The study supports the Lower West Coast projects (SWFFS and C-43; p. 49) as it (1) provides assessment tools that are a critical priority for making landscape level restoration decisions that favor one species or trophic level over another or that maximize biodiversity with an ecological system (p. 49); spatially models the impacts of hydrologic targets on ecological conditions and the critical links between hydrology, water quality and ecological responses in southwest Florida (p. 50); (3) models how hydrologic and water quality targets relate to the landscape-scale assemblages of habitats needed to support the area's fish and wildlife resources and particularly, the wide-ranging species (p. 50); Geographic information system mapping for habitat database of hydrologic restoration contributions to listed species and the protection and enhancement of fish and wildlife value (p. 50); and aids in the identification of key indicator of the desired ecological responses (p. 51). Specifically, this study supports the following science plan information needs:
This study supports information needs for SWFFS activities that impact ecological communities. The decision aids and methodologies for decision-making are implicit in the DOI Science Plan which requires the gathered science to be integrated and applied to restoration. The ecological modeling, synthesis of science information, and application of decision aids specifically supports CERP as it (1) helps with prioritization of science resource allocations (p. 11); (2) helps decision-makers in establishing specific goals and objectives in the context of conflicting priorities and adaptive management (pp. 10,15 & 17); and (3) provides a systematic and documented procedure to evaluating alternatives for what actions will restore, protect, and manage natural resources in South Florida (p. 9).
Relevance to MAP: This study supports information needs in the Caloosahatchee estuary for the CERP hypothesis (the restoration of hydrology toward NSM conditions will will provide estuarine habitat conditions so as to (1) improve the spatial and structural characteristics of submerged plant communities, (2) improve the recruitment and survivorship of the eastern oyster, and (3) promote the recovery of the relative abundance and distribution of fish communities. (p. 3-114) and the Adaptive Management Question (Will the restoration of favorable flow and salinity regimes achieve restoration objectives for estuarine epibenthic habitats, thus providing for an increase in the distribution and density of representative estuarine fauna? If not, what additional changes in the flow and salinity regimes are necessary? (p. 3-114) by modeling the impacts of alternative hydrologic inflows on estuarine habitat for Calooshatchee Ecological Attributes: submerged aquatic vegetation, oyster, and fisheries (blue crab and spotted sea trout) (p. A-146 - p. A-148). These attributes are derived from CERP MAP conceptual model for the Calooshatchee Estuary (p. A-160). Specific Research Questions supported by the modeling include (1) Relationship of Blue Crab Fishery to Temperature, Salinity and Other Water Quality Parameters, (2) Relationship of Mollusk Populations and Fish Recruitment to Submerged Aquatic Vegetation and Salinity, and (3) Relationship of Current and Historical Submerged Aquatic Vegetation Coverage to Potential Distribution (p. A-157).
It is expected that the modeled habitat will serve as a basis for sampling design and monitoring which will lead to refinements in the models and, consequently, refinements in management of hydrologic releases for the protection of coastal natural resources. This planned protocol implements the adaptive assessment stratagy (p. 2-7 and p. A-1).
Models for the American Oyster and Blue Crab have been completed and peer-reviewed. A model for the Spotted Seatrout has been completed and is in final review. A modeling and habitat evaluation application to aid decision support has been completed. Literature and modeling parameters for 2 SAV (Vallisneria in freshwater and Halodule in seawater) are in being synthesized. Hydrologic and water quality input for alternative runs of the ecological models will be supplied by the SFWMD, but is still in preparation.
Final models and an accompanying final report are completed for the American Oyster and the Blue Crab. A user's manual is completed for the modeling application interface.
Final models and documentation for Spotted Seatrout, Vallisneria, Halodule, and possibly 2 additional seagrasses (Thalassia and Syringodium) are planned. A report documenting the modeled coastal habitat effects of alternative hydrological scenarios will also be created.
Title of Task 1: Develop and apply forecasting models to evaluate alternatives as they are being developed.
Task Summary and Objectives:
The objectives of this task (and project) are to develop and apply forecasting models to evaluate the impacts of CERP projects on ecological attributes selected from the conceptual models developed for coastal ecosystems as part of the SWFFS.
Work to be undertaken during the proposal year and a description of the methods and procedures:
Models of future conditions provide a valuable tool for understanding the potential magnitude of management/restoration alternatives. Models relating the output of hydrological models and potential changes in the landscape, to amount and location of potential habitat for individual species or habitats give both a visual and a quantitative picture of effects of restoration alternatives. The first step in this process is the development of hydrological models to simulate natural and alternative hydrological systems. Hydrologic models outputs will be supplied by the USCOE and SFWMD. The next step in the process is to develop models that simulate land use scenarios, perhaps lined to socio-economic models. Land use change models will be constructed as a part of this study. Land use change models from other sources can also be used in the ecological evaluation applications developed in this study to examine alternative scenarios. The final step is to develop ecological (species habitats as presented above) that simulate ecological responses to different land and water use scenarios. Ecological and land use models are being developed in the MS Windows environment to increase their availability to managers and decision-makers. Scenarios to be tested will be developed with input from agency partners and will focus on the potential impacts of changes in land use (both development and restoration) and changes in hydrology. These scenarios will provide the basis for forecasting the effects of restoration alternatives on selected performance measures.
All of the DOI Science Plan information needs, science questions, and MAP research needs listed above apply to this task.
Specific Task Product(s):
U.S. Department of the Interior, U.S. Geological Survey
This page is: http://sofia.usgs.gov/projects/workplans05/eco_model.html
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Last updated: 04 September, 2013 @ 02:08 PM(KP)
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