Cryptic animals tend to be overlooked in studies of biodiversity and ecological risk assessment.

This model is a valuable tool for ecologists, biologists, water quality modelers, and anyone involved in performing aquatic ecological risk assessments.

Includes five Watershed Ecological Risk Assessment case studies.

Priority is given to those ecological systems at greatest risk, with emphasis on the scientific uncertainties that most seriously impede ecological risk assessment.

Ecological Risk Assessment: Use, Abuse, and Alternatives.

Guidance for Ecological Risk Assessments (EcoNOTEs)

In ecological risk assessments (Figure 8), through a network model we can identify the keystone species and determine how wide spread the impacts will extend from the potential hazards being investigated.

The ecological risk assessment revealed threats to organisms that live in the sediment of the Gowanus and found risks to ducks and heron that eat fish from the canal.

Assessment Tools for the Evaluation of Risk (ASTER): Developed to assist regulators in performing ecological risk assessments by providing high quality data for discrete chemicals.

Key scientific disciplines include: terrestrial and aquatic (freshwater and marine) ecology, landscape ecology, wildlife biology, plant physiology, biotechnology, toxicology, biogeochemistry, oceanography, geography, multivariate, geospatial statistics, and ecological risk assessment.

The Human & Ecological Risk Assessment Journal conducted a study which focused on the health of individuals living near municipal landfills to see if it would be as harmful as living near hazardous landfills.

EMAP aimed to advance the science of ecological monitoring and ecological risk assessment, guide national monitoring with improved scientific understanding of ecosystem integrity and dynamics, and demonstrate multi-agency monitoring through large regional projects.

The Ecological Risk Assessment also found that river otters from the Lower Duwamish River might be exposed to such high levels of PCBs that the growth or survival of their offspring may be reduced.

Now the Defense Threat Reduction Agency is conducting an ecological risk assessment of the area, and, with the Fish and Wildlife Service, is trying to develop a memorandum of understanding before the service assumes control of the dump.

EPA's National Center for Environmental Assessment (NCEA) is a leader in the science of human health and ecological risk assessment, a process used to determine how pollutants or other stressors may impact human health and the environment.

NCEA-Washington scientists, with expertise in toxicology, epidemiology, biology, chemistry, mathematics, and engineering, also conduct health and ecological risk assessments of chemicals in support of EPA's regulatory programs using the Integrated Risk Information System (IRIS) database.