Ramas (Applied Biomathematics)

- Ecosystem

0

RAMAS® Ecosystem performs ecological risk assessments for food chain and food web models, linking bioassay results to community dynamics. It imports data from standard laboratory bioassays, incorporates these data into the parameters of a population model, and performs a risk assessment by analyzing population-level differences between control and impacted samples. RAMAS® Ecosystem facilitates the management of variability and uncertainty in data, expressing results as ecological risks.

Link bioassay results to population and community dynamics:

  • Build chains or webs using boxes and arrows
  • Model toxicant kinetics or set bioaccumulation factors
  • Select dose-response and predator-prey functions

Food chain/web models

  • Build chain or web using boxes and arrows
  • Model toxicant kinetics or set bioaccumulation factors
  • Select dose-response and predator-prey functions
  • Simulate dynamics and estimate risk or adverse events

Features include:

  • Specify parameters as scalar numbers, intervals (e.g., [10,15] mg per liter) or distributions (e.g., (10,1) mg per liter)
  • Automatic unit conversions and checking for dimensional consistency
  • Dose-response model: Weibul, probit, logit,
  • Predator-prey interactions: Lotka-Volterra, Holling type II, ratio-dependent
  • Density dependence: ceiling, logistic, Ricker, Beverton-Holt
  • Monte Carlo treatment of measurement error and environmental variation
  • Summarize results as biomass/abundance projections and risk statistics
  • Display graphs and tables, save or paste into other applications
  • Comprehensive online help

Link bioassay results to population and community dynamics with Windows software…

  • Build chain or web using boxes and arrows
  • Model toxicant kinetics or set bioaccumulation factors
  • Select dose-response and predator-prey functions
  • Simulate dynamics and estimate risk or adverse events

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