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机构地区:[1]东北师范大学生命科学学院,吉林长春130024
出 处:《东北师大学报(自然科学版)》2004年第1期78-82,共5页Journal of Northeast Normal University(Natural Science Edition)
基 金:国家自然科学基金资助项目(30170141)
摘 要: 在次生阔叶林中,对7种鸟类冬、夏季对树种的利用做了深入探讨.7种鸟在冬、夏季对树种的利用都有显著差异或极显著差异(P<0.05或P<0 01).在冬季或夏季中,不同种鸟类对树种利用也不同,除长尾山雀山外,其他种鸟类对黑桦的利用冬季较多(P<0 01);除小斑啄木鸟以外,其他种鸟类对蒙古栎的利用冬季较多(P<0 01).在捕食位置上,也有差异.在利用树的胸径上,仅黑桦(P<0 01)和杨树(P<0 01)有冬、夏季变化;在捕食树种多样性上,夏季比冬季捕食树种多样性高.黑桦和蒙古栎是7种鸟冬季主要觅食树种,对其越冬起重要作用.Rcorded the foraging behavior of 7 species forest birds during winter and summer in the deciduous wood of Zuojia Nature Reserve.There existed significant differences(P<(0.05;)P<0.01)of the tree species used by 7 species birds during winter and summer.All the species except Long-taied Tit(Aegithalos caudatus)used more River Birch(Betula davurica) and Mongolian Oak(P<0.01)in winter.Most species prefer to use Mongolian Oak(P<0.01) in winter,except Losser spottod wood pecker(Dendrocopos minor)(P<0.01)and Grey-headed wood pecker(Picus canus)(P<0.01).In foraging position,all species have significant differences.Only the diameters at breast height of River Birch and Manchurian Linden(Tilia mandshurica)that were used are different in summer and winter.The foraging tree speciies diversity of summer in higher than that of winter.It appears the 7 species birds have more chances to obtain foods under loose flaky of River Birch and Mongolian Oak the other tree species during winter. River Birch and Mongolian Oak play an importhant role for birds to over winter.
分 类 号:Q958.122.5[生物学—动物学]
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