Competition and facilitation by savanna trees and grasses.

Agriculture & Biology

1. savannas 100%
2. germination 70%
3. environmental factors 63%
4. grasses 31%
5. species recruitment 29%
6. soil nutrients 28%
7. herbivores 28%
8. plant establishment 25%
9. soil water 24%
10. nutrient content 20%
11. seedlings 20%
12. nutrient availability 19%
13. water supply 14%
14. leaves 14%
15. interspecific variation 13%
16. plant communities 13%
17. shade 12%
18. water 11%
19. seed characteristics 11%
20. browsing 11%
21. nutrients 11%
22. rain 11%
23. Senegalia nigrescens 8%
24. biomass production 8%
25. tropical grasslands 8%
26. Colophospermum mopane 7%
27. water stress 7%
28. Acacia karroo 7%
29. ecosystems 7%
30. water content 6%
31. developmental stages 6%
32. soil resources 6%
33. compensatory growth 5%
34. land use change 5%
35. surface water level 5%
36. vegetation structure 5%
37. dry matter partitioning 5%
38. nutrient requirements 5%
39. regrowth 5%
40. seeds 5%