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Published byByron Acors Modified over 10 years ago
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An Overview
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EDT – Habitat Model Results = Species Habitat Potential Raw Data and Observations Species-Neutral Environment Species-Life Stage View of Environment
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Equilibrium Abundance Recruits/Spawner (Density Dependent Productivity) Recruits (returning adults/spawner) Spawners (number in first generation) Habitat Capacity Habitat (Density Independent) Productivity
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EGGS JUVENILES SMOLTS SUBADULTS SPAWNING ADULTS
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VSP-Relevant Parameters Habitat Capacity LS/Pop. Productivity Equilibrium Abundance Diversity Survival (limiting) factors Life History Information Used Here Need to Think Broadly About Historical Potential!! Model Habitat Environment Species/Habitat Rules Habitat Potential Habitat Potential Trajectory Generator
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Reference scenario maximum potential Difference restoration potential Model for potential life history expression Reference Condition (Ideal) Patient Template Current or Future Condition (Degraded)
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Trajectories = range of life history expression Different pathways have different survival rates Survival (limiting) factor effect on LS productivity Combined success rate = habitat productivity % successful = diversity index
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Life history information used to parameterize EDT trajectory generator Emphasize both existing AND potential life history diversity Don’t be too literal! Need to represent potential diversity (not just what exists today) EDT selects successful trajectories
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CHANNEL MORPHOMETRY 3 Channel Attributes WATER QUALITY/BIOTIC STRESSORS 13 Water Quality and Biotic Attributes HYDROLOGY 7 Flow Attributes TEMPERATURE 3 Temperature Attributes CHANNEL/HABITAT CHARACTERISTICS 20 Channel/Habitat Attributes Survival Factors
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No Effect (Optimal) Low Effect Moderate Effect High Effect Extreme/Lethal Effect
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