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Volume 1: Stressor Identification

Step-by-Step Guide Introduction

Using the Step-by-Step Guide
Guide Overview
Fundamentals of Causal Analysis

Step 1: Define the Case

Overview
In-Depth Look
Results and Next Steps

Step 2: Candidate Causes

Overview
In-Depth Look
Results and Next Steps

Step 3: Data from the Case

Overview
In-Depth Look
    Spatial/Temporal Co-occurrence
    Evidence of Exposure or Biological Mechanism
    Causal Pathway
    Stressor-Response Relationships from the Field
    Manipulation of Exposure
    Laboratory Tests of Site Media
    Temporal Sequence
    Verified Predictions
    Symptoms
Results and Next Steps

Step 4: Data from Elsewhere

Overview
In-Depth Look
    Stressor-Response Relationships from Other Field Studies
    Stressor-Response Relationships from Laboratory Studies
    Stressor-Response Relationships from Ecological Simulation Models
    Mechanistically Plausible Cause
    Manipulation of Exposure at Other Sites
    Analogous Stressors
Results and Next Steps

Step 5: Identify Probable Causes

Overview
Weigh Evidence for Each Case
    Consistency of Evidence
    Explanation of the Evidence
Compare Evidence Among Causes
Complete Causal Analysis

Types of Evidence

Scores

Causal Assessment Background

Our Causal Approach
Causal Concepts
Causal History
References

Volume 2: Sources, Stressors & Responses

Sources

Urbanization
What is urbanization?
Riparian/Channel Alteration
Wastewater Inputs
Stormwater Runoff
Water/Sediment Quality
Temperature
Hydrology
Physical Habitat
Energy Sources

Stressors

Ammonia
Dissolved Oxygen
Flow Alteration
Herbicides
Insecticides
Ionic Strength
Metals
Nutrients
pH
Physical Habitat
Sediment
Temperature
Unspecified Toxic Chemicals

Responses


Volume 3: Examples & Applications

Analytical Examples

Overview
Example 1
Example 2
Example 3
Example 4
Example 5

Worksheets: Little Scioto

Overview
1. Define the Case
2. List Candiate Causes
3. Assemble Data from the Case
4. Spatial/Temporal Co-occurrence
5. Evidence of Exposure or Mechanism
6. Causal Pathway
7. Stressor-Response from the Field
    Sediment
    Riffle/pool
    Dissolved oxygen
    Ammonia
    Metals
8. Summary of Scores from the Case
    Increased % DELT
    Increased Relative Weight
    Decreased % Mayflies and Increased % Tolerant Macroinvertebrates
9. Assemble Data from Elsewhere
10. Stressor-Response from Laboratory Studies
11. Mechanistically Plausible Cause
12. Summary of Scores from Elsewhere
    Increased % DELT
    Increased Relative Weight
    Decreased % Mayflies and Increased % Tolerant Macroinvertebrates
13. Consistency of Evidence
    Increased % DELT
    Increased Relative Weight
    Decreased % Mayflies and Increased % Tolerant Macroinvertebrates
14. Explanation of Evidence
    Increased % DELT
    Increased Relative Weight
    Decreased % Mayflies and Increased % Tolerant Macroinvertebrates
15. Identify Probable Cause

Full Case Studies

State Examples

Galleries

Overview
Chronic Concentration-Response
SSDs
Field Stressor-Response
References

Volume 4: Data Analysis

Selecting an Analysis Approach

How Can I Use My Data?
Establishing Differences from Expectations
Describing Stressor-Response Relationships

Getting Started

Assembling Data
Matching Data
Organizing Data
Data Quality
References

Basic Principles and Issues

Interpreting Statistics
    Interpreting Statistics: Details
Autocorrelation
    Autocorrelation: Details
Confounding
    Confounding: Details
References

Exploratory Data Analysis

What is EDA?
Variable Distributions
Scatterplots
Correlation Analysis
Conditional Probability
Multivariate Approaches
    Multivariate Approaches: Details
Mapping Data
References

Basic Analyses

Tests of Significant Difference
Regression Analysis
    Regression Analysis: Details
Quantile Regression
    Quantile Regression: Details
Classification and Regression Tree (CART) Analysis
    CART Analysis: Details
References

Advanced Analyses

Controlling for Natural Variability
Predicting Environmental Conditions From Biological Observations (PECBO)
    PECBO: Details
Analyzing Trait Data
Propensity Score Analysis
Species Sensitivity Distributions (SSDs)
References

Download Software

Overview
CADStat
SSD Generator
R Command Line Tutorial

Volume 5: Causal Databases

ICDs

Introduction
ICD User Roles & Modes
Viewing ICDs
Editing ICDs

CADLit

Introduction
Using CADLit

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