Natural resource condition assessment: Timucuan Ecological and Historic Preserve
Allen K, Nadeau AJ, Robertson A. 2022. Natural resource condition assessment: Timucuan Ecological and Historic Preserve. Natural Resource Report. NPS/TIMU/NRR—2022/2394. National Park Service. Fort Collins, Colorado. https://doi.org/10.36967/nrr-2293564
The Natural Resource Condition Assessment (NRCA) Program aims to provide documentation about the current conditions of important park natural resources through a spatially explicit, multi-disciplinary synthesis of existing scientific data and knowledge. Findings from the NRCA will help Timucuan Ecological and Historic Preserve (TIMU) managers to develop near-term management priorities, engage in watershed or landscape scale partnership and education efforts, conduct park planning, and report program performance (e.g., Department of the Interior’s Strategic Plan “land health” goals, Government Performance and Results Act). The objectives of this assessment are to evaluate and report on current conditions of key park resources, to evaluate critical data and knowledge gaps, and to highlight selected existing stressors and emerging threats to resources or processes. For the purpose of this NRCA, staff from the National Park Service (NPS) and Saint Mary’s University of Minnesota – GeoSpatial Services (SMUMN GSS) identified key resources, referred to as “components” in the project. The selected components include natural resources and processes that are currently of the greatest concern to park management at TIMU. The final project framework contains nine resource components, each featuring discussions of measures, stressors, and reference conditions. This study involved reviewing existing literature and, where appropriate, analyzing data for each natural resource component in the framework to provide summaries of current condition and trends in selected resources. When possible, existing data for the established measures of each component were analyzed and compared to designated reference conditions. A weighted scoring system was applied to calculate the current condition of each component. Weighted Condition Scores, ranging from zero to one, were divided into three categories of condition: low concern, moderate concern, and significant concern. These scores help to determine the current overall condition of each resource. The discussions for each component, found in Chapter 4 of this report, represent a comprehensive summary of current available data and information for these resources, including unpublished park information and perspectives of park resource managers, and present a current condition designation when appropriate. Each component assessment was reviewed by CAHA resource managers, NPS Southeast Coast Network staff, or outside experts. Existing literature, short- and long-term datasets, and input from NPS and other outside agency scientists support condition designations for components in this assessment. However, in some cases, data were unavailable or insufficient for several of the measures of the featured components. In other instances, data establishing reference condition were limited or unavailable for components, making comparisons with current information inappropriate or invalid. In these cases, it was not possible to assign condition for the components. Current condition was not able to be determined for four of the eight components due to these data gaps. For those components with sufficient available data, the overall condition varied. Three components were determined to be in good condition: upland hardwood hammocks, salt marshes, and water quality. However, water quality and salt marshes were at the edge of the good condition range, and any small decline in conditions could shift them into the moderate concern range. Of the components in good condition, trends could not be assigned for upland hardwood hammocks and water quality, and salt marshes are considered stable. One component (air quality) was of high concern, primarily due to emissions from surrounding developments (e.g., power plants, transportation, industry), but with an improving trend. Detailed discussion of these designations is presented in Chapters 4 and 5 of this report. Several park-wide threats and stressors influence the...
- Type
- Published Report
- Authors
- Allen, Kathy; Nadeau, Andy; Robertson, Andy
- Date of Issue
- 2022-05
- Publisher
- National Park Service
- DOI
- 10.36967/nrr-2293564
- Units
- NRSS , TIMU , WRD
- Keywords
- Air Quality, Biological Resources, Birds, Climate, Climate Change, Fish, Herpetofauna, Indicators, Invasive Species, Level of Confidence, Natural Resource Condition Assessment Reports, Natural Resources, NRCA, Oysters, Salt Marshes, Saltwater Fish Community, Stressors, Threats, Trends, Upland Hardwood Hammocks, Water Quality
- Subjects
- Ecological Framework: Air and Climate | Air Quality | Ozone , Ecological Framework: Air and Climate | Air Quality | Wet and Dry Deposition , Ecological Framework: Air and Climate | Air Quality | Visibility and Particulate Matter , Ecological Framework: Air and Climate | Air Quality | Air Contaminants , Ecological Framework: Water | Water Quality | Nutrient Dynamics , Ecological Framework: Water | Water Quality | Toxics , Ecological Framework: Water | Water Quality | Microorganisms , Ecological Framework: Biological Integrity | Focal Species or Communities | Marine Communities , Ecological Framework: Biological Integrity | Focal Species or Communities | Forest/Woodland Communities , Ecological Framework: Biological Integrity | Focal Species or Communities | Fishes , Ecological Framework: Biological Integrity | Focal Species or Communities | Amphibians and Reptiles , Ecological Framework: Biological Integrity | Focal Species or Communities | Birds