The Status Of Resource And Conservation Of Great Bustard In China

The author studied the distribution, resource status and important habitats of Great Bustard in detail in 15 provinces and sections all over the country during the period from May in 1999 to July in 2002 in China, and selected Beidagang in Jilin province as a settled area to study during the period from April in 2002 to September in 2003. The main results as follows:1. The Otis tarda tarda only distributes in Xinjiang province, can be seen in Yiii. Aertai, Changji and Hami in summer, and only can be seen in Yili in winter. Otis tarda dybowskii distributes in Heilongjiang, Jilin, Neimeng and Hebei in summer, and in Neimeng, Jilin, Heilongjiang, Hebei, Shanxi. Henan. Shandong. Jiangsu. Jiangxi, Hubei and Hunan province in Winter. Great bustard can be seen in Hekou in Liaoning province, Beidaihe and Leting in Hebei province, most regions in Ningxia province, the east of Gansu and the north of Shanxi during the migration seasons.2. The number of Otis tarda tarda is 1060 to 1200 in summer and is 80 to 85 in winter in our country. The number of Otis tarda dybowskii is 618 to 625 in summer and 725 individuals in winter in our country.3. There are 16 important habitats for Great Bustard in China: Tacheng, Yili. Daqing, Xianghai, Tumuji-Beidagang, Dalai, Keerqin, Zhenglanqi. Beidaihe. Baijitan, Delta of Yellow River, Dali-Heyang, Shengjin lake, Poyang lake and Sihong.4. The distribution regions for Great bustard are decreasing. The distribution regions of Great bustard are dis-continuous now, and the status of its habitats takes on obvious fragmentation. The population of Great bustard is decreasing year after year.5. The reasons which cause Great bustard be in danger involve inner and outer factors, the inner factors mainly involve mature late. fewer clutch size and lower impregnation rate, one male more females wedding system. strong guard behavior and sentimentally attached habit. highly nervosity and bare nest-site. The outer factors involve grassland cultivated, overgrazing, exploring oil. industry constructing, pollution, hunting. natural enemies and disasters. That thehabitats destroyed by human economic activity is the most important factor thatresults in the Great bustard population decreasing. 6. The key of Great bustard conservation needs to assort with development. Thefollowing: increasing propaganda power and conservation consciousness;promoting natural reserve constructing; confirming the protection position ofGreat bustard; ceasing cultivate land to plant grass; controlling oil fieldexploring and other constructing scale and intensifying scientific research onGreat bustard should be done to restore its population.