Dataset title: Pond Cypress C-111 Basin, Everglades (FCE), South Florida Dendroisotope Data from 1970 to 2000 Dataset ID: doi:10.6073/pasta/276054adea70428074111409e8231305 Research type: Long-term Dataset Creator Name: Dr. William Anderson Position: Associate Professor Organization: Southeast Environmental Research Center Address: FIU-BBC, Marine Sciences Miami, FL 33181 USA Phone: 305-919-2693 Fax: 305-919-4030 Email: andersow@fiu.edu URL: www.fiu.edu/~andersow Metadata Provider Organization: Florida Coastal Everglades LTER Program Address: Florida International University University Park OE 148 Miami, FL 33199 USA Phone: 305-348-6054 Email: fcelter@fiu.edu URL: http://fcelter.fiu.edu Dataset Abstract δ13C values were determined from cypress tree rings from two different study areas in South Florida. One site is located in the Southeastern Everglades Marsh, where pond cypress (Taxodium ascendens) was sampled from tree islands (annual tree rings from 1970 to 2000). Bald cypress (Taxodium distichum) trees were sampled at the other site, located along the Loxahatchee River in a coastal wetland (decadal tree rings from 1830 to 1990). The isotopic time series from both sites display different, location-specific information. The pond cypress isotopic time series has a positive correlation with the total amount of annual precipitation, while the bald cypress data from the Loxahatchee River study area had two different records dependent on the level of saltwater stress. In general, for terrestrial trees growing in a temperate environment, water stress causes an increase in water-use efficiency (WUE) resulting in a relative 13C enrichment. Yet, trees growing in wetland settings in some cases do not respond in the same manner. We propose a conceptual model based on changes in carbon assimilation and isotopic fractionation as controlled by differences in stomatal resistance (water stress) and mesophyll resistance (biochemical and nutrient related) to explain the isotopic records from both sites. With further work and a longer time series, our approach may be tested, and used to reconstruct change in hydroperiods further back in time, and potentially provide a baseline for wetland restoration. Dataset Purpose 13C of tree-ring from tree islands in the C-111 Basin, for comparing with paleo-hydrology Geographic Coverage Study Extent Description The Study Extent of this dataset includes the C-111 Basin within Everglades National Park (FCE), South Florida Bounding Coordinates Geographic description: C-111 Basin, Tree islands adjacent to the corner of the C-111 canal West bounding coordinate: -80.543 East bounding coordinate: -80.507 North bounding coordinate: 25.318 South bounding coordinate: 25.297 Geographic description: Florida Coastal Everglades LTER Study Area: South Florida, Everglades National Park, and Florida Bay West bounding coordinate: -81.078 East bounding coordinate: -80.490 North bounding coordinate: 25.761 South bounding coordinate: 24.913 Temporal Coverage Start Date: 1970-01-01 End Date: 2000-12-31 Data Table Entity Name: LT_CD_Anderson_001.csv Entity Description: Pond Cypress C-111 Basin, Everglades, South Florida Dendroisotope Data Object Name: LT_CD_Anderson_001.csv Data Format Number of Header Lines: 1 Attribute Orientation: column Field Delimiter: , Number of Records: Attributes Attribute Name: SITENAME Attribute Label: sitename Attribute Definition: Name of Collection Site Storage Type: Measurement Scale: Name of Collection Site Missing Value Code: Attribute Name: YEAR Attribute Label: nominal year Attribute Definition: Year of Sample Collection Storage Type: string Measurement Scale: Year of Sample Collection Missing Value Code: Attribute Name: 13CRAW Attribute Label: stable isotope Attribute Definition: Delta 13C stable isotope not corrected for the change in the delta 13C value of the atmosphere over the period of study Storage Type: Measurement Scale: Units: perMil Precision: 0.01 Number Type: real Missing Value Code: -9999.00 (Value will never be recorded) Attribute Name: 13CCORRD Attribute Label: stable isotope Attribute Definition: Delta 13C corrected for the change in the delta 13C value of the atmosphere over the period of study Storage Type: Measurement Scale: Units: perMil Precision: 0.01 Number Type: real Missing Value Code: -9999.00 (Value will never be recorded) Attribute Name: RINGINDEX Attribute Label: index Attribute Definition: Relative Width Index Storage Type: Measurement Scale: Units: dimensionless Precision: 0.01 Number Type: real Missing Value Code: -9999.00 (Value will never be recorded) Methods Sampling Description Anderson et al. (2005) Method Step Description Instrumentation IRMS Method Step Description Quality Control Visual Inspection of Values Distribution Online distribution: https://pasta.lternet.edu/package/data/eml/knb-lter-fce/1061/3/b5e98e6fb3765e4303d9c96c275cffb0 Intellectual Rights These data are classified as 'Type I' whereby original FCE LTER experimental data collected by individual FCE researchers are available for scientific purposes 2 years after collection. Maximum lock period = 2 years. All publications based on this dataset must cite the data Contributor, the Florida Coastal Everglades Long-Term Ecological Research (LTER) Program and that this material is based upon work supported by the National Science Foundation through the Florida Coastal Everglades Long-Term Ecological Research program under Cooperative Agreements #DBI-0620409, and #DEB-9910514. Additionally, two copies of the manuscript must be submitted to the Florida Coastal Everglades LTER Program Office, LTER Program Manager, Florida International University, Southeast Environmental Research Center, OE 148, University Park, Miami, Florida 33199. For a complete description of the FCE LTER Data Distribution and Data User Agreement, please go to FCE Data Management Policy at http://fcelter.fiu.edu/data/DataMgmt.pdf and LTER Network Data Access Policy at http://fcelter.fiu.edu/data/core/data_user_agreement/distribution_policy.html. Dataset Keywords FCE Florida Coastal Everglades LTER ecological research long-term monitoring Delta 13 C isotope C-111 Basin dendrochronological record isotopes pond cypress freshwater estuarine trees basins Data Submission Date: 2012-03-30 Maintenance This is a long-term isotope dataset and subsequent data will be appended and metadata updated. Dataset Contact Name: William Anderson Position: Working Group Lead Organization: Southeast Environmental Research Center Address: FIU - BBC, Marine Sciences North Miami, Florida 33181 USA Phone: 305-919-2693 Fax: 305-919-4030 Email: andersow@fiu.edu Position: Information Manager Organization: Florida Coastal Everglades LTER Program Address: Florida International University University Park OE 148 Miami, FL 33199 USA Phone: 305-348-6054 Fax: 305-348-4096 Email: fcelter@fiu.edu URL: http://fcelter.fiu.edu Dataset Submission Date 2012-03-30 Data Submission Notes published in Anderson, W.T., Sternberg, L., Pinzon, M.C., Gann-Troxler, T., Childers, D.L., and Duever, M., 2005, Carbon isotope composition of cypress trees from South Florida and changing hydrologic conditions: Dendrochronologia, v. 23, n. 1, p. 1-10.