5Brokaw N. 1998. Fragments past, present and future[J]. Trends Ecol. Evolution., 13(10): 382- 383.
6Groom MJ. 2001. Consequences of subpopulation isolation for pollution, herbivory, and population growth in Clarkia concinna ( Onagraceae)[J]. Biol. Conserva., 100: 55-63.
7Knick ST, John TR. 1997. Landscape characteristics of disturbed shrubsteppe habitats in southwestern Idaho (USA)[J]. Landscape Ecol., 12(5) :285-297.
8Mooney HA. 1988. Lessons mediterranear climate region[A].In: Wilson EO. (ed). Biodiversity [C]. Washington DC: National Academy Press, 157- 165.
9Medail F, Roche P, Tatoni T. 1998. Functional groups in phytoecology: an application to the study of isolated plant communities in Mediteranean France [J]. Acta Oecologica, 19 (3): 263 - 274.
10McDonell MJ , Picket STA. 1990. Ecosystem structure and function along urban-rural gradients: an unexploited opportunity for ecology[J]. Ecology, 71:1231 - 1237.
