Data and Tools

Analytical Examples

This page includes examples illustrating the use of statistical analysis to support different types of evidence, stream temp, temperature inferred from macroinverterbate, macroinvertebrate responses, zinc concentrations, observed trait characteristics.

Manipulation of Exposure at Other Sites

This page explains how to derive and evaluate evidence using studies from other locations that manipulate exposure.

Symptoms

This page shows how to derive and evaluate evidence using symptoms.

Getting Started

This page provides a guide overview to the step-by-step guide to Stressor Identification, and fundamentals of causal assessment.

Step 5. Identify Probable Causes

This page includes an overview of Step 5, to identify probable cause, then weighing evidence for a candidate cause, comparing evidence across causes, and analyzing the expected output of the causal assessment.

Long Creek Conceptual Model Diagram

Figure 2-2 is an example of a simple conceptual model diagram for increased water temperature as a candidate cause of biological impairment.

Figures: Manipulation of Exposure at Other Sites

These figures illustrate the concept of the type of evidence "Manipulation of Exposure at Other Sites"

The Case of DDT: Revisiting the Impairment

This page is an example or case study showing how the identification of DDT and it's subsequent ban had a positive impact on the reproduction of birds. This is an excellent example of causal analysis with a positive outcome.

Iteration Options

This page provides additional information on the iterative options to consider when you are trying to identify the cause of an impairment. This is supporting step 5 of a causal assessment.

Example Stressor-Response Relationships Table

Example Stressor-Response Relationships Table as part of CADDIS Volume 1 stressor identification section.

Spatial/Temporal Co-occurrence

This page shows how to derive and evaluate evidence of spatial/temporal co-occurrence.

Stressor-Response Relationships from Other Field Studies

This page shows how to derive and evaluate evidence using stressor-response relationships from other field studies.

Verified Predictions

This page shows how to derive and evaluate evidence of a verified prediction.

Laboratory Tests of Site Media

This page show how to derive and evaluate evidence from laboratory tests of site media.

Manipulation of Exposure

This page shows how to derive and evaluate evidence from studies that manipulate exposure.

Evidence of Exposure or Biological Mechanism

This page shows how to derive and evaluate evidence of exposure or biological mechanism.

Stressor-Response Relationships from the Field

This page shows how to derive and evaluate evidence of stressor-response relationships from the field.

Temporal Sequence

This page shows how to derive and evaluate evidence of a temporal sequence.

Step 2. List Candidate Causes

This page includes an overview, including more details and expected output of Step 2, listing candidate causes of a causal impairment.

Step 4. Evaluate Data from Elsewhere

This page includes an overview, details and expected output from Step 4: Evaluate Data from Elsewhere.