摘要
1999～2003年对河南郑州市区鹭鸟的生态习性进行了研究。结果表明:郑州市区共有夜鹭(Nycticoraxnycticorax)、池鹭(Ardeolabacchus)、白鹭(Egrettagarzetta)及苍鹭(Ardeacinerea)4种鹭鸟营巢繁殖,栖息地道路总长4600m,道路面积约132400m2。2003年栖息地共有鹭巢6762个,巢密度为0.051个/m2。平均每株行道树有鹭巢12.47个,多的超过30个。鹭类对营巢树的利用具有选择性。从种群数量上看,夜鹭占绝对优势,占98.05%,其次是池鹭,白鹭和苍鹭数量较少。据2003年统计,在市区停留的时间为:夜鹭212天,池鹭158天,白鹭147天。雏鸟留巢期为夜鹭49.17±0.835天,池鹭32.7±1.059天,白鹭41.43±1.134天,均较荒野地长。平均出雏数为:夜鹭2.85±1.268只,池鹭4.50±1.35只,白鹭4.43±1.27只。鹭鸟在市区繁殖是人类活动影响的结果,并对市区环境造成一定的影响。
Observations on the ecology of Black-crowned Night Herons(Nycticorax nycticorax), Chinese Pond Heron(Ardeola bacchus), Little Egret(Egretta garzetta) and Grey Heron(Ardea cinerea) have been taken in urban area, Henan province from 1999 to 2003. The results were as following: The road of nesting site was overall 4600m long, the road area was approximately 132400 m^2 and there were 6762 nests in 2003. The nest density was 0.051/m^2, the number of nests per tree in average was 12.47 and the maximum was more than 30. The using of nesting tree was selective. Black-crowned Night Herons took 98.05% in population. By the records in 2003, Night Herons stayed in urban breeding area for 212 days, Chinese Pond Heron for 158 days, Little Egret for 147 days. The nestling bird stayed in nest was 49.17±0.835 days for Black-crowned Night Herons, 32.7±1.059 days for Chinese Pond Heron, 41.43±1.134 days for Little Egret, which were longer than that in wildlands. The average brood size was 2.85±1.268 for Black-crowned Night Herons, 4.50±1.35 for Chinese Pond Heron, 4.43±1.27 for Little Egret. Herons breeding in urban areas was the results of human, and had caused certain influences to urban environment.
出处
《河南科学》
2004年第6期792-795,共4页
Henan Science
基金
河南省环保局(豫环科[2000]20-16)
河南省教育厅资助项目(2000180027)
关键词
夜鹭
池鹭
白鹭
苍鹭
生态
繁殖
城市环境
郑州
Nycticorax nycticorax
Ardeola bacchus
Egretta garzetta
Ardea cinerea
ecology
breeding
urban area
Zhengzhou
China
