Biodiv Sci ›› 1999, Vol. 07 ›› Issue (3): 161-169.

• 论文 •

### A preliminary evaluation of the habitat quality of the Crested ibis (Nipponia nippon)

LI Xin-Hai,LI Dian-Mo,DING Chang-Qing,CAO Yong-Han,LU Xi-Rong,FU Wen-Kai,MA Zhi-Jun,LU Bao-Zhong,ZHAI Tian-Qing

1. 1) Institute of Zoology , Chinese Academy of Sciences , Beijing 　100080
2) Shaanxi Forestry Bureau , Xi’an 　710082
3)Beijing Normal University , Beijing 　100875
4) The Conservation and Observation Station of the Crested Ibis , Yang County 　723300
• Received:1998-11-26 Revised:1999-02-23 Online:1999-08-20 Published:1999-08-20

Abstract: The habitat quality of the Crested ibis was evaluated. First , we digitized the topographic map , vegetation map , river map , road map , and village map by geographical information system , and gave each map the suitability values according to the favorite degree of the Crested ibis. Then we overlaid these maps to obtain an integrated map of habitat quality. Compared with the actural distribution of the Crested ibis , we found that it always inhabited at the sites of high quality. This indicated that the factors we chose were very important for the Crested ibis. However , we also found that the Crested ibis never inhabited at some sites of high quality. We speculated , therefore , some other factors restricted the distribution of the Crested ib