| Parent | |||
|---|---|---|---|
Ecology 2m papers | |||
| Current | |||
Habitat 325k papers | |||
| Child | |||
Threatened species 59.4k papers | Endangered species 56k papers | Riparian zone 20.7k papers | Wildlife conservation 20.2k papers |
Landscape ecology 19.3k papers | Waterfowl 16.6k papers | Wildlife management 15.7k papers | Seagrass 14.2k papers |
Ecological niche 14.1k papers | Marine protected area 13.5k papers | ||