繁殖期夜鹭对城市化的适应性研究

2004年3月～6月以曲阜的孔庙、孔林两地作为夜鹭不同城市化程度的栖息地，从繁殖、人为干扰两个方面对繁殖期夜鹭的城市化适应性行为机制进行了初步研究．结果显示，两地的城市化程度存在显著差异，其中孔庙较高．营巢高度随城市化程度的提高呈增大趋势．营巢密度最初随城市化程度的提高先降低，但随其进一步提高有所增加，在最高时又降低．惊飞距离随城市化程度的增加而减小。

Studies on the Adaptation of Black-crowned Night Heron to Urbanization in Breeding Season

The Primary studies on the adaptation of black-crowned night heron to urbanization in breeding season were conducted from March to June, 2004. The Temple Kong, the Foresty Kong were selected as different urbanization sites. Results showed that there were significant differences in urbanization between the Temple Kong and the Foresty Kong. The urbanization synthesis index in the Temple Kong was higher than that in the Foresty Kong. The height of nest above ground increased with the enhancement of urbanization. At first, the nest density decreased with the enhancement of urbanization, then increased, and decreased again with the enhancement of urbanization finally. The flushing distance decreased with the enhancement of urbanization.