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Ecosystems Mission Area


John W Powell
12201 Sunrise Valley Drive
Reston , VA 20192-0002
Parent Organization: U.S. Geological Survey
Mangrove restoration has a strong potential to enhance the services provided by coastal wetlands on a number of Department of the Interior (DOI) managed lands throughout the southeastern United States of America. Services include storm protection, water quality improvement, and biological carbon sequestration. Forest structural attributes including basal area, tree height, and stem density by species are used to calculate above ground biomass and above ground productivity. Percent cover is used to asses the forest canopy health. The data collected for the soils are: bulk density, percent total Nitrogen, percent total Carbon, and selected samples percent total Phosporus. The forest structure plots were placed in...
We assessed the resilience of wetlands to sea-level rise along a transitional gradient from tidal freshwater forested wetland (TFFW) to oligohaline marsh by measuring processes controlling wetland elevation. We identified fundamental differences in how resilience is maintained across wetland community types, which have important implications for management activities that aim to restore or conserve resilient systems.
SOILWAT2 is a daily time step, multiple soil layer, process-based simulation model of ecosystem water balance. Inputs to SOILWAT2 include local meteorology (daily temperature and precipitation, mean monthly relative humidity, wind speed and cloud cover), vegetation (monthly total biomass, % live biomass, surface litter, belowground rooting profile) and soil texture (gravel, sand, silt, and clay) to simulate daily ecosystem water balance. SOILWAT2 simulates precipitation interception by vegetation and litter, evaporation of intercepted water, snowmelt, sublimation and wind redistribution of snow, moisture infiltration, saturated and unsaturated percolation and hydraulic redistribution for each soil layer, bare-soil...
Model Name (Name of the model, including acronyms): Sagebrush Hurdle Model Model Version (Version of the model, (i.e., 2.0)): Abstract (Description or summary of the model, including its purpose or goals and the type or formalism of the model (e.g., system dynamic, agent based model, machine learning), preferably accompanied by relevant keywords): Originator(s) (Name(s) of the model developer(s)/author(s)): Douglas Shinneman ( Contact Name(s) and Email Address(es) (Names of person(s) responsible for maintenance of the model along with their email): Douglas Shinneman Release Date (Date model was originally released (YYYYMMDD, YYYYMM, YYYY)): 201906 Last Update (Date of last update (YYYYMMDD, YYYYMM,...
We investigated population dynamics in chorus frogs (Pseudacris maculata) relative to extrinsic (air temperatures and snowpack) and intrinsic (density dependence) characteristics at 2 sites in Colorado, USA. We used capture-mark-recapture (cmr) data (i.e., 1 or 0, provided here) and a Bayesian model framework to assess our a priori hypotheses about interactions among covariates and chorus frog survival and population growth rates. Files include: Cameron_Lily_cmr_NOV2020.csv, Cameron_Matthews_cmr_NOV2020.csv, and Cameron_covariates_NOV2020.csv. Data associated with paper by Kissel et al. 2021.
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