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CICEET Progress Report for the period 3/01/08 Through 8/31/08
Project Title: Mitigating Shoreline Erosion along the Hudson River Estuary’s Sheltered Coasts
Project Objectives for This Reporting Period Objectives Establish a formal structure for project management and team collaboration
Evaluate and compare ecological functions of six types of natural and engineered shoreline present in the Hudson Estuary.
In fall, 2007, Cary Institute of Ecosystem Studies (Cary IES) documented the physical structure of the shorelines through study of ten physical and chemical variables that have been shown to affect ecological structure and function in other habitats. In summer, 2008, invertebrate biodiversity and abundance (Cary IES) and fish biodiversity (HRNERR) were studied. Data have been analyzed using ANOVA and an exploratory regression analysis. Findings to date (Dave Strayer): Regardless of what ecological variable is measured, there is a great deal of variation in the ecological attributes of different shorelines along the Hudson River. Some of this variation is clearly related to the type or physical structure of the shoreline. For example, fish communities clearly differ among the different shoreline types. Relatively flat and featureless sandy shores support large numbers of small fish, physically complex shorelines such as rock and riprap support moderate numbers and high diversity of larger fish, and vertical seawalls support very few fish of any kind. The species composition of the fish community composition also is related to the shoreline type. The physical structure of the shoreline also affects its ecological function. For instance, flatter shorelines accumulate more organic matter, which serves both as shelter and a food source for organisms, and is a hotspot for biogeochemical cycling. The fact that humans often steepen shorelines by converting them to vertical seawalls or steep revetments may hamper the ecological value of many shorelines.
Develop more accurate regional projections of climate impacts.
Conduct an engineering analysis to evaluate selected shore protection measures
Characterize the short- and long-term costs of different shoreline hardening, vegetating approaches, and land use management measures used to control erosion.
Participate in a multi-stakeholder scenario planning process
The Nature Conservancy’s Eastern NY Chapter advanced Rising Waters, a multi-stakeholder scenario planning process to think about the future of the Hudson River Estuary, and how we collectively can best adapt to expected future changes in climate. Rising Waters has been facilitated by Steve Aldrich of Bio Economic Research Associates. Shorelines project Coordinating Team members Kristin Marcell, David Van Luven, Stuart Findlay, and Betsy Blair all participated in the Rising Waters Steering Committee, Scenario Development Team, and other work groups. Rising Waters Progress Report (by David Van Luven), with background beginning in April, 2008 (1) We held a Scoping Workshop in April, 2009 with approximately 100 representatives of a broad set of stakeholder groups, including financial and insurance companies, conservation organizations, research institutions, county planning agencies, state government agencies, and marina owners. In the workshop, we introduced participants to the scenario building process and then collectively identified the elements that the scenarios would need to contain, particularly driving forces (such as economic considerations and natural processes), prime community movers (whether for change or the status quo), major uncertainties, and primary concerns. (2) In May, 2008, we convened the first meeting of the 21-member Scenarios Team and began to develop written scenarios. (3) The first round of draft scenarios were reviewed by about 75 stakeholders in a second Vetting Workshop in June, 2008. Participants in the workshop provided extensive constructive feedback and advice on which aspects of the scenarios were plausible, understandable, and compelling. (4) Beginning in July and continuing through August, 2008, small Working Groups of experts and knowledgeable participants worked through the scenarios in the context of: Infrastructure, Ecosystems, Government, Agriculture, Communications/Community Impacts, Technology & Economic Issues, and Climate Information. The Scenarios Team and 8-member Steering Committee then met by phone through early September to integrate the information into a revised set of scenarios. These new scenarios more effectively highlighted the implications of climate change for communities and natural systems, and ways different decisions by communities would mitigate or amplify the different climate change impacts. (5) In late September, 2008, more than 50 stakeholders met in a third day-long Implications Workshop to review the new scenarios for plausibility and accuracy, and to consider the implications of climate change in the different scenarios on shorelines, floodwaters, and more. (6) Through October and early November, 2008, the Working Groups and Steering Committee finalized the scenarios and integrated additional technical information into them. (7) In late November, 2008, approximately 50 stakeholders convened for a fourth Strategies Workshop to begin identifying potential response ideas in the context of the four final scenarios. (8) In December, 2008 and January, 2009, the Scenarios Team and Steering Committee refined the broad list of potential response ideas into a discrete set of 80 concise response options.
Identify stakeholders
Assess stakeholders’ needs for information and training
Develop and begin implementation of a communications and outreach plan
Data Generated to date
Project Objectives for Next Reporting Period Describe technical and non-technical objectives
Outline work plan to meet identified objectives
Expenditures
What else?
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