- Ecology 6
- Plant Sciences 4
- Hydrology/Water Resources 3
- Agriculture 1
- Biochemistry, general 1
- Biotechnology 1
- Cell Biology 1
- Earth Sciences, general 1
- Environment, general 1
- Environmental Management 1
- Geoecology/Natural Processes 1
- Geography, general 1
- Microbial Ecology 1
- Microbiology 1
- Plant Physiology 1
- Soil Science & Conservation 1
- Zoology 1