Subject
- Biology and Ecology[remove]114
- Environment114
- Biogeography39
- Oceans28
- Boundaries20
- Marine habitats18
- Coasts14
- Benthos12
- Habitat (Ecology)12
- Ocean bottom12
- Home range (Animal geography)11
- Biotic communities10
- Inland Waters10
- Wetlands8
- Land cover7
- Vegetation classification7
- Watersheds7
- Conservation of natural resources6
- Ecological zones6
- Land use6