摘要
2021年10月下旬至2022年4月上旬,在黄河三角洲地区适宜大鸨栖息越冬的所有生境,以每周1次的时间间隔,经21次连续调查证实:大鸨越冬数量为43~48只,越冬时间为110天左右,最早迁来时间为11月上旬、迁离时间为3月下旬;大鸨活动规律为清晨日出时刻由夜宿地飞至觅食地觅食,清晨至中午时段觅食频繁,下午以休息为主间或觅食,觅食期间偶到黄河边饮水,傍晚日落时刻返回夜宿地;收割稻穗、放牧、田间车辆行驶、早春农耕作业、春季烧荒、农作物种植方式改变等因素是影响大鸨越冬的干扰因素。
During late October to early April,continuous 21 field surveys had been carried out every weeks in all Great Bustards’suitable wintering habitats.As a ruslut to show:the number of wintering individuals was 43—48,wintering period was about 110 days,the early migratory period was early November,the leave-off period was late March.When the sun-rise time,Great Bustards left sleeping site to feeding site and kept feeding till midday,they feeded or rested during afternoon or watered to yellow river during feeding.At the sunset,the returned sleeping site.Many factors distrubed them,such as harvesting rice,grazing,driving,farming,burnning and the planting model of farmland.
作者
张希画
郝迎东
杨长志
刘海防
宋建彬
毕正刚
崔吉业
ZHANG Xihua;HAO Yingdong;YANG Changzhi;LIU Haifang;SONG Jianbin;BI Zhenggang;CUI Jiye(The Yellow River Delta National Nature Reserve Administration Committee,Dongying Shandong 257091)
出处
《山东林业科技》
2022年第5期82-84,88,共4页
Journal of Shandong Forestry Science and Technology
基金
阿拉善SEE基金会河南项目中心“大鸨东部种群越冬同步调查项目”
北京草原之盟环境保护促进中心资助。
关键词
大鸨
越冬规律
黄河三角洲
干扰因素
Great Bustard
wintering regularity
yellow river delta
interference factors
作者简介
张希画(1977-),本科,高级工程师,研究方向:林业调查规划,E-mail:hhklyglg@126.com;通信作者:郝迎东(1970-),本科,高级工程师,研究方向:林业调查规划,E-mail:hhkhyd@126.com。
