4Gómez-Aparicio L, Zamora R, Gómez J M, Hódar J A, Castro J, Baraza E. Applying plant facilitation to forest restoration: a meta-analysis of the use of shrubs as nurse plants. Ecological Applications, 2004, 14(4): 1128-1138.
5King E G, Stanton M L. Facilitative effects of Aloe shrubs on grass establishment, growth, and reproduction in degraded Kenyan rangelands: Implications for restoration. Restoration Ecology, 2008, 16(3): 464-474.
6Bruno J F, Stachowicz J J, Bertness M D. Inclusion of facilitation into ecological theory. Trends in Ecology and Evolution, 2003, 18(3): 119-125.
7Callaway R M. Positive Interactions and Interdependence in Plant Communities. Dordrecht: Springer, 2007.
8Brooker R W, Maestre F T, Callaway R M, Lortie C L, Cavieres L A, Kunstler G, Liancourt P, Tielb?rger K, Travis J M J, Anthelme F, Armas C, Coll L, Corcket E, Delzon S, Forey E, Kikvidze Z, Olofsson J, Pugnaire F, Quiroz C L, Saccone P, Schiffers K, Seifan M, Touzard B, Michalet R. Facilitation in plant communities: The past, the present, and the future. Journal of Ecology, 2008, 96(1): 18-34.
9Vellend M. Effects of diversity on diversity: consequences of competition and facilitation. Oikos, 2008, 117(7): 1075-1085.
10Yu F H, Li P X, Li S L, He W M. Kobresia tibetica tussocks facilitate plant species inside them and increase diversity and reproduction. Basic and Applied Ecology, 2010, 11(8): 743-751.
