Yellowstone Model 2A

This project simulates an ecosystem involving wolves, elk, and willows in Yellowstone Park. The goal of the simulation to modify simulation properties and initial populations to create both a stable and a healthy set of populations. Simulation property descriptions are below, with default initial values. The first group are control parameters. The second group are statistics. The final two are control parameters. All thresholds are numbers of simulation cycles <property name="Sim_Rate" value="0.1"/>: simulation rate <property name="Elk_Hungry" value="10.0"/> Elk hunger threshold <property name="Elk_Repro" value="23.0"/> Elk reproduction threshold <property name="Elk_Starve" value="30.0"/> Elk starvation threshold <property name="Elk_Old" value="50.0"/> Elk age limit <property name="Wolf_Hungry" value="15.0"/> Wolf hunger threshold <property name="Wolf_Starve" value="40.0"/> Wolf starvation threshold <property name="Wolf_Repro" value="30.0"/> Wolf reproduction threshold <property name="Wolf_Old" value="70.0"/> Wolf age limit <property name="Willow_Cycles" value="10.0"/> Number of times willow eaten before dormancy <property name="Willow_Sleep_Time" value="5.0"/> Willow dormancy time <property name="Density" value="10.0"/> Animal density for auto-generation <property name="Elk_Ratio" value="80.0"/> Elk/Wolf ratio for auto-generation <property name="Willow_Density" value="10.0"/> Willow density for auto-generation <property name="Wolf_Limit_Spawn" value="2.0"/> Limit wolf reproduction if next to too many wolves <property name="Elk_Limit_Spawn" value="6.0"/> Limit elk reproduction if next to too many elk <property name="Life_Variable" value="10.0"/> Initialization variable for setting age, reproduction, and/or hunger values (see ‘Initialization’ methods in elk and wolf agents) <property name="Sim_Cycles"/> Number of simulation cycles executed in the world <property name="Willows_Active"/> Number of non-dormant willows in the world <property name="Willows_Dormant"/> Number of dormant willows in the world <property name="Elks"/> Number of elks in the world <property name="Wolves"/> Number of wolves in the world <property name="Elks_Spawned"/> Number of elks generated (reproduced) <property name="Elks_Eaten"/> Number of elks eaten <property name="Elks_Starved"/> Number of elks died of starvation <property name="Elks_Died_Old"/> Number of elks died of old age <property name="Max_Elk"/> Maximum number of elks reached in the world <property name="Min_Elk"/> Minimum number of elks reached in the world <property name="Wolf_Spawns"/> Number of wolves generated (reproduced) <property name="Wolves_Starved"/> Number of wolves died of starvation <property name="Wolves_Died_Old"/> Number of wolves died of old age <property name="Max_Wolves"/> Maximum number of wolves reached in the world <property name="Min_Wolves"/> Minimum number of wolves reached in the world <property name="Willows_Eaten"/> Number of willows eaten <property name="Willows_Bloomed"/> Number of willows revived from dormancy <property name="Randomize"/> When set=1, forces randomization when simulation begins <property name="Run_Sim" value="1.0"/> When set=1, allows simulation to run <property name="Stop_Ratio" value="10.0"/> Ratio of elks/wolves to stop simulation <property name="Current_Ratio"/> Dynamic calculation of elk/wolf ratio

By fggluck