巢中的位置对鸲岩鹨亲鸟递食率的影响  

Effect of Nestling Positions in Nests on the Parental Feeding Rates in Robin Accentor(Prunella rubeculoides)

作　　者：李明财[1] 赵亮[1] 李来兴[1] 张晓爱[1] 易现峰[1] 

机构地区：[1]中国科学院西北高原生物研究所,西宁810001

出　　处：《动物学杂志》2003年第6期28-32,共5页Chinese Journal of Zoology

基　　金：国家自然科学基金资助项目 (No .39870 12 1)

摘　　要：2 0 0 2年 4～ 8月在中国科学院海北高寒草甸生态系统定位站研究了鸲岩鹨 (Prunellarubeculoides)亲鸟的递食率与巢中位置的关系。结果表明 :亲鸟的总递食率对巢中的每个具体位置有显著变化(Kruskas WallisH =1 4 63 3 ,P <0 0 1 ,df=3 ) ;雄性和雌性对巢中的位置有不同的响应 ,雄性对巢中的每个具体位置的递食率有显著差异 (H =1 6 72 0 ,P <0 0 1 ,df=3 ) ,而雌性递食率差异不显著 (H =3 5 5 7,P>0 0 5 ,df=3 ) ;雄鸟和雌鸟间递食的方式随着日龄和日时间变化也有显著差异。结果证实巢中的位置能够影响鸲岩鹨亲代资源的分配 ,同时也证实了鸲岩鹨双亲对巢中的位置有不同的响应。This study was carried out in the Haibei Alpine Meadow Ecological System Station, the Chinese Academy of Sciences,during the breeding season of robin accentor in 2002. We investigated the relationship between nestling positions in nests and parental feeding rates of robin accentor ( Prunella rubeculoides ). There was significant variation in the proportion of total parental (male+female) feedings given to each position (Kruskas-Wallis H =14.633, P <0.01, df =3). However, male and female parents responded differently to the certain positions of nestlings in the nests. The proportions of male parental feedings given to each nestling position were significantly different ( H =16.720, P <0.01, df =3), by contrast, the proportions of female parental feeding to each nestling position weren′t significantly different ( H =3.557, P >0.05, df =3). Furthermore, the pattern of food allocation was significantly different between male and female parents. We argue that nestlings positions can affect their share of parental resources and male and female parents response differently to different nestling positions in nests.

关 键 词：鸲岩鹨 位置 递食率 

分 类 号：Q958[生物学—动物学]