- Science, Humanities and Social Sciences, multidisciplinary 9
- Science, multidisciplinary 9
- Ecology 8
- Life Sciences, general 5
- Zoology 5
- Environment, general 4
- Fish & Wildlife Biology & Management 3
- Behavioral Sciences 2
- Animal Ecology 1
- Geoecology/Natural Processes 1
- Microbial Ecology 1
- Microbiology 1
- Nature Conservation 1
- Psychology Research 1
- Water Quality/Water Pollution 1