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Ecopath with Ecosim (EwE) is a free and open source ecosystem modelling software suite, initially started at NOAA by Jeffrey Polovina, but has since primarily been developed at the formerly UBC Fisheries Centre of the University of British Columbia. In 2007, it was named as one of the ten biggest scientific breakthroughs in NOAA's 200-year history.
EcoSim is an individual-based predator-prey ecosystem simulation in which agents can evolve. It has been designed to investigate several broad ecological questions, as well as long-term evolutionary patterns and processes such as speciation and macroevolution.
Simulation models tend to be more widely used, and are generally considered more ecologically realistic, while analytic models are valued for their mathematical elegance and explanatory power. [10] [11] [12] Ecopath is a powerful software system which uses simulation and computational methods to model marine ecosystems. It is widely used by ...
It is a daily time series version of the CENTURY biogeochemical model. The United States Environmental Protection Agency , United States Department of Agriculture /ARS and the Colorado State University Natural Resource Ecology Lab are currently using the Daycent model to develop a national inventory of N 2 O emissions from U.S. agricultural soils .
SIMUL8 - software for discrete event or process based simulation. Simulations Plus - modeling and simulation software for pharmaceutical research; SimulationX - modeling and simulation software based on the Modelica language. Simulink - a tool for block diagrams, electrical mechanical systems and machines from MathWorks.
FORECAST is a management-oriented, stand-level, forest-growth and ecosystem-dynamics model. The model was designed to accommodate a wide variety of silvicultural and harvesting systems and natural disturbance events (e.g., fire, wind, insect epidemics) in order to compare and contrast their effect on forest productivity, stand dynamics, and a series of biophysical indicators of non-timber values.
Ecosystem Demography (ED, [18] ED2 [19]) VEGAS [20] [21] – U.S. The next generation of models – Earth system models (ex. CCSM, [22] ORCHIDEE, [23] JULES, [24] CTEM [25]) – now includes the important feedbacks from the biosphere to the atmosphere so that vegetation shifts and changes in the carbon and hydrological cycles affect the climate.
To use physical habitat models to analyze and predict ecosystem potential, compositions must also be determined of the native fish community and a subset of species must be selected for model development. The development of a Reference Fish Community (RFC) is based on the Target Fish Community approach, described by Bain and Meixler (2000). [3]