近十年来乌梁素海湿地鸟类区系演变初探

经资料的收集和实地考察,在乌梁素海至1995年记录到鸟类181种和4亚种,隶属于16目45科103属;至2000年记录到鸟类197种和4亚种,隶属于17目47科110属;至2005年记录到鸟类221种和4亚种,隶属于17目47科116属.在实地考察和综合前人资料的基础上,对近十年来乌梁素海湿地鸟类区系演变情况进行了初步分析.由于气候条件和人为因素的影响,乌梁素海湿地环境不断恶化,适于沼泽环境的鸟种不断的增加,而适于广阔水域生存的鸟种的种类相对减少;文须雀以前在乌梁素海湿地在数量上很多,且为留鸟,但在近两年的多次调查中很难见到.

A Preliminary Study on Avifauna''''s Evolution in Wuliangsuhai Wetland during the Last 10 Years

According to the investigation and other materials,there were 181 species and 4 subspecies,which belonged to 16 orders,45 families,103 genera before 1995 in the area of Wuliangsuhai wetland.After that it was found that from 1996 to 2000 the records were changed,there were 197 species and 4 subspecies which belonged to 17 orders,47 families,110 genera.but there was an obvious change in species from 2001 to 2005 in the same area,221 species and 4 subspecies were recorded,which belonged to 17 orders,47 families,116 genera.During the last 10 years,under the influence of drough weather and mankind activities,the water area of Wuliangsuhai wetland decreased,bogginess increased.Birds are sensitively responded to the environmental changes,the species lived in the swamp increased,those lived in the lake decreased.Panurus biarmicus birds which are very active and possessed sightseeing and admiring,once were resident birds and in large amounts,but now they are almost disappeared in winter.