7MISTRY J, ANDREA B, SIMPSON M. Birds as Indicators of Wetland Status and Change in the North Rupununi Guyana [ J ]. BiodNersty and Conservation,2008,17(10) :2383-2409.
8PADOA-SCHIOPPA E, BAIETTO M, MASSA R, et al. Bird Com- munities as Bioindicators : The Focal Species Concept in Agricultural Landscapes [ J ]. Ecological Indicators, 2006, 6 ( 1 ) : 83-93.
9CUI B S, YANG Q C, YANG Z F,et al.Evaluating the Ecological Performance of Wetland Restoration in the Yellow River Delta, China[J] .Ecological Engineering,2009,35(7) :1090-1103.
10BI X L,WANG B,LU Q S.Fragmentation Effects of Oil Wells and Roads on the Yellow River Delta, North China [ J ]. Ocean & Coastal Management,2011,54 ( 3 ) : 256- 264.
