CAJ | 학술논문

在云南塔城附近的山地森林中,我们利用摄象机记录了一群滇金丝猴通过山谷和在水源地饮水的过程.我们利用这些记录分析这群滇金丝猴的种群大小、组成成员以及个体的空间分布,并利用连续通过个体之间的时间间隔来揭示社会结构.塔城滇金丝猴群由366个个体组成,是目前所知最大的滇金丝猴群体.猴群内雌性个体较多.猴群可以分为26个单位,其中有19个单雄多雌单位、5个多雄多雌单位和2个全雄单位.统计结果表明单位内个体间的时间间隔显著比单位间的短.2/3以上的亚成年雄性个体和全雄单位一起活动.猴群在地面活动时全雄单位位于猴群的外围,充当前卫和后卫.塔城猴群的生命表组成结构与吾牙普亚猴群的大致一样,同样是多层社会结构,单雄多雌和全雄单位构成猴群的主体.亚成年雄性多数与全雄单位一起活动,表明雄性可能会从其出生的单雄多雌单位中迁移出来.
재운남탑성부근적산지삼림중,아문이용섭상궤기록료일군전금사후통과산곡화재수원지음수적과정.아문이용저사기록분석저군전금사후적충군대소、조성성원이급개체적공간분포,병이용련속통과개체지간적시간간격래게시사회결구.탑성전금사후군유366개개체조성,시목전소지최대적전금사후군체.후군내자성개체교다.후군가이분위26개단위,기중유19개단웅다자단위、5개다웅다자단위화2개전웅단위.통계결과표명단위내개체간적시간간격현저비단위간적단.2/3이상적아성년웅성개체화전웅단위일기활동.후군재지면활동시전웅단위위우후군적외위,충당전위화후위.탑성후군적생명표조성결구여오아보아후군적대치일양,동양시다층사회결구,단웅다자화전웅단위구성후군적주체.아성년웅성다수여전웅단위일기활동,표명웅성가능회종기출생적단웅다자단위중천이출래.
We recorded on video a band of Rhinopithecus bieti while crossing a gully and drinking at a water hole in a montane forest near Tacheng in Yunnan, China. This footage allowed us to analyze the size and composition as well as the spatial distribution of individuals in the band. We used time intervals between successively passing individuals to reveal social clusters. The R. bieti band at Tacheng consisted of 366 animals which is the largest grouping of this species ever known.There was a skewed sex ratio in favor of females. The band was divided into 26 units: 19 one-male units (OMUs) , 5 multi-male units (MMUs), and 2 all-male units (AMUs). The mean interindividual time intervals within units were significantly shorter than between units. More than 2/3 of the subadult males in the band travelled with the AMU. AMUs were peripheral and formed either the rear or front units while moving terrestrially. The demographic results of the Tacheng band are largely in accord with those of the Wuyapiya band, with the social system of R. bieti being multilayered where single OMUs and AMUs form a very large band. The fact that most subadult males were in AMUs makes male dispersal from natal OMUs likely.