■ American Association for the Advancement of Science

■ American Association of Avian Pathologists

■ American Microscopical Society, Inc.

■ American Ornithologists' Union

■ American Society for Biochemistry and Molecular Biology

■ American Society of Agronomy

■ American Society of Ichthyologists and Herpetologists

■ American Society of Parasitologists

■ American Society of Plant Biologists

■ American Society of Plant Taxonomists

■ American Society of Primatologists

■ American Statistical Association

■ American Zoo and Aquarium Association

■ Animal Behavior Society

■ Association for the Study of Animal Behaviour

■ Association for Tropical Biology and Conservation

■ Association of Ecosystem Research Centers

■ Association of Field Ornithologists

■ Botanical Society of America

■ British Bryological Society

■ British Cactus and Succulent Society

■ British Ecological Society

■ British Mycological Society

■ British Phycological Society

■ British Society for Cell Biology

■ Canadian Society of Agronomy

■ Canadian Society of Animal Science

■ Canadian Society of Soil Science

■ Company of Biologists Limited

■ Conchologists of America, Inc.

■ Cooper Ornithological Society

■ Crop Science Society of America

■ Crustacean Society

■ Ecological Society of America

■ Entomological Society of America

■ Entomological Society of Canada

■ European Microscopy Society

■ European Molecular Biology Organization (EMBO)

■ Genetics Society of America

■ Great Lakes Fishery Commission

■ Herpetologist's League

■ International Association for Plant Taxonomy

■ International Association of Bryologists

■ International Association of Hydrological Sciences

■ International Association of Lichenologists

■ International Association of Theoretical and Applied Limnology

■ International Society for Horticultural Science

■ International Society for Microbial Ecology

■ International Society for Molecular Plant-Microbe Interactions

■ Michigan Audubon Society

■ Michigan Botanical Club

■ Microscopy Society of America

■ National Fish and Wildlife Foundation

■ National Resources Defense Council

■ National Wildlife Federation

■ North American Lake Management Society

■ North American Mycological Societies

■ Organization for Tropical Studies

■ Paleontological Association

■ Paleontological Society

■ Palynology/Paleoecology

■ Phycological Society of America

■ Royal Entomological Society

■ Royal Horticultural Society

■ Royal Microscopy Society

■ Society for General Microbiology

■ Society for Industrial Microbiology

■ Society for Integrative and Comparative Biology

■ Society for Invertebrate Pathology

■ Society for Molecular Biology and Evolution

■ Society of American Foresters

■ Society of Systematic Biologists

■ Society of Nematologists

■ Society of Protozoologists

■ Society of Vertebrate Paleontology

■ Soil Science Society of America

■ Tree Care Industry Association

■ Tropical Biology Association

■ Weed Science Society of America

■ Wildlife Disease Association

■ Willi Henning Society (Cladistics)

■ Wilson Ornithological Society

■ World Aquaculture Society