= 3 Introductory material: Ecosim =
Ecosim provides a dynamic simulation capability at the ecosystem level, with key initial parameters inherited from the base Ecopath model.

This chapter contains details of the theory underpinning the function of Ecosim:

 1. [wiki:EwEugAnOverviewOfEcosim An Overview of Ecosim]
 1. [wiki:EwEugEcosimBasics Ecosim Basics]
 1. [wiki:EwEugVulnerabilitiesInEcosim Vulnerabilities in Ecosim]
 1. [wiki:EwEugDealingWithDynamicInstabilityInEcosimEcospace Dealing with Dynamic Instability in Ecosim and Ecospace]
 1. [wiki:EwEugPredictingConsumption Predicting Consumption]
 1. [wiki:EwEugForagingTimeAndPredationRisk Foraging Time and Predation Risk]
 1. [wiki:EwEugTimeSeriesFittingInEcosimEvaluatingFisheriesAndEnvironmentalEffects Time Series Fitting in Ecosim: Evaluating Fisheries and Environmental Effects]
 1. [wiki:EwEugHintsForFittingModelsToTimeSeriesReferenceData Hints for Fitting Models to Time Series Reference Data]
 1. [wiki:EwEugEffectsOfPbZandVulnerabilityForTimeSeriesFitting Effects of P/B (Z) and Vulnerability for Time Series Fitting]
 1. [wiki:EwEugPredatorSatiationAndHandlingTimeEffects Predator Satiation and Handling Time Effects]
 1. [wiki:EwEugModellingSwitchingBehaviourInEcosim Modelling Switching Behaviour in Ecosim]
 1. [wiki:EwEugCompensatoryMechanisms Compensatory Mechanisms]
 1. [wiki:EwEugUsingEcosimToStudyCompensationInRecruitmentRelationships Using Ecosim to Study Compensation in Recruitment Relationships]
 1. [wiki:EwEugCompensatoryGrowth Compensatory Growth]
 1. [wiki:EwEugCompensatoryNaturalMortality Compensatory Natural Mortality]
 1. [wiki:EwEugLinkingMediationAndTimeForcingFunctionsToTrophicInteractionRates Linking Mediation and Time Forcing Functions to Trophic Interaction Rates]
 1. [wiki:EwEugPrimaryProduction Primary Production]
 1. [wiki:EwEugNutrientCyclingAndNutrientLimitationInEcosim Nutrient Cycling and Nutrient Limitation in Ecosim]
 1. [wiki:EwEugDensityDependentChangesInCatchability Density-dependent Changes in Catchability]
 1. [wiki:EwEugModellingEffortDynamics Modelling Effort Dynamics]
 1. [wiki:EwEugUsingEcosimForStockReductionAnalysis Using Ecosim for Stock Reduction Analysis]
 1. [wiki:EwEugHatcheryPopulationsInEcosim Hatchery Populations in Ecosim]
 1. [wiki:EwEugParameterSensitivity Parameter Sensitivity]

See [EwEugEcosimInputs Ecosim Inputs] and [EwEugEcosimOutputs Ecosim Outputs] for links to instructions for using Ecosim.