Represents professional ecologists working in local government in the UK.

Promotes the science of ecology through research, publications and conferences and uses the findings of research to educate the public and to influence policy decisions which involve ecological matters.

Works to promote ecological science by improving communication among ecologists; raising public awareness; increasing the resources available for ecological science; and ensuring the appropriate use of ecological science in environmental decision making.

Promotes ecological research and communication through publications and conferences. Contains links to ecological resources.

A nonprofit association of researchers, managers, administrators, educators, and other professionals who work on behalf of the scientific and heritage values of protected areas.

U.S. Regional Association - Purpose is to promote the interdisciplinary research and communication among scientists, planners, and other professionals concerned with landscape ecology.

Formed to promote the study of ecology and the application of ecological knowledge in all its aspects. Attempts to encourage ecological research and increase awareness and understanding of ecological principles.

Includes more than 200 field stations and professionals concerned with field facilities for biological research and education, primarily in North America and Central America. Provides information about the LTER network, links member stations

Organization for Chinese ecologists based outside of China.

International professional membership organization for people researching, practicing or interested in Ecological Restoration.

Information about activities, membership, ethics, certification.