拉萨地区小云雀种群数量和分布的季节变动

POPULATION DISTRIBUTION AND SEASONAL VARIATY OF THE LESSER SKYLARK IN LHASA, TIBET

研究拉萨地区小云雀种群数量分布和季节变动后表明:(1)Alauda gulgula inopinata 在拉萨地区为留鸟,部分个体迁徙;(2)以草甸、沼泽草甸和农作区为最适生活环境;(3)种群具明显的季节消长.

During 1985(from May to July)and 1986,the author made a research on population distribution and seasonal variaty of the Lesser Skylark in Lhasa area,Tibet.Results obtained may be summarized as follows: Lesser Skylark(Alauda gulgula)is the resident birds in Lhasa ares,but parts of them make a migration. Meadow,swamp meadow and farmland are the best habitats for the Lesser Skylark in Lhasa area. The population density varies obviously according to seasons in Lhasa area.