= 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][[BR]]
 1. EwEugPredictingConsumption
 1. EwEugForagingTimeAndPredationRisk
 1. EwEugTimeSeriesFittingInEcosimEvaluatingFisheriesAndEnvironmentalEffects
 1. EwEugHintsForFittingModelsToTimeSeriesReferenceData
 1. EwEugEffectsOfPbZandVulnerabilityForTimeSeriesFitting
 1. EwEugPredatorSatiationAndHandlingTimeEffects
 1. EwEugModellingSwitchingBehaviourInEcosim
 1. EwEugCompensatoryMechanisms
 1. EwEugUsingEcosimToStudyCompensationInRecruitmentRelationships
 1. EwEugCompensatoryGrowth
 1. EwEugCompensatoryNaturalMortality
 1. EwEugLinkingMediationAndTimeForcingFunctionsToTrophicInteractionRates
 1. EwEugPrimaryProduction
 1. EwEugNutrientCyclingAndNutrientLimitationInEcosim
 1. EwEugDensityDependentChangesInCatchability
 1. EwEugModellingEffortDynamics
 1. EwEugUsingEcosimForStockReductionAnalysis
 1. EwEugHatcheryPopulationsInEcosim
 1. EwEugParameterSensitivity



See [[Using Ecosim. Part 1 Ecosim inputs.htm|Ecosim inputs]] and [[Using Ecosim. Part 2 Ecosim outputs.htm|Ecosim outputs]] for links to instructions for using Ecosim.