- Ecology Tutorial - Short introduction to the science of ecology, including terminology.
- Suite 101: Ecology - Articles on ecological themes.
- Ecolog-L - Archives and subscription management for the Ecological Society of America's e-mail group for ecology news, jobs postings, and discussion.
- History of Ecology - Bibliography and notes on prominent ecologists.
- USA National Phenology Network - Organization's goal is to facilitate collection and dissemination of data on the timing of life cycle events of plants and animals. Site includes description of protocols and methods, news items, and links to other resources.
- Quaternary Paleoecology@ (6)
- Fire Ecology (10)
- Wildlife Ecology and Management (78)
- Molecular Ecology (2)
- Microbial Ecology (12)
- Aquatic Ecology (212)
- Ecotoxicology (56)
- Biodiversity@ (986)
- Restoration Ecology (25)
- Evolutionary Ecology (12)
- Soil Ecology (6)
- Biogeography (8)
- Ecosystems (191)
- Population Ecology (5)
- Plant Ecology (17)
- Industrial Ecology@ (19)
- Landscape Ecology and Spatial Analysis (16)
- Invasive Species@ (133)