CAJ | 학술논문

2000年9月到2003年3月共计197天的时间里,我们采用目标动物取样法(Focal animal sampling)和行为的全事件记录法(All occurrence sampling)对一群生活在秦岭北坡周至保护区内的秦岭金丝猴(Rhinopithecus roxellana)在自然栖息地内空间利用的进行了研究.当猴群在离开人工投食区进行自由活动时我们开始收集数据.结果表明:秦岭川金丝猴在不同年龄性别组的个体对植被的空间利用明显不同, 它们花费每天活动的14%的时间在地面上活动,53%时间在树叉处活动,33%的时间在树冠中间活动.与其它年龄性别个体相比,成年雄性有27%的观察时间在地上活动,并且20%的取食时间或29%的休息时间是在地上的,明显地高于其它年龄性别组的个体.群体迁移时,成年雄性有53%的时间在地上移动,而只有13%的时间是在树冠层移动的.在通过不同树冠的时候,成年雄性经常会同时抓住两边再把身体摆过去.它们也经常下到地上迁移而回避在树间跳跃.相比之下,亚成年雌性和青少年猴更加经常地在低植被层和树冠层中找食和休息.它们明显地比成年猴更加频繁地在树冠中移动,却很少下地.它们还经常使用跳跃的方式通过树冠间的空隙.从观察到摔下树的事例分析,青少年猴从树上摔下来的风险比成年猴大.本文进而讨论了影响秦岭金丝猴空间分布和移动的因素,比如说身体的重量等[动物学报 52(3):429-436,2006].
2000년9월도2003년3월공계197천적시간리,아문채용목표동물취양법(Focal animal sampling)화행위적전사건기록법(All occurrence sampling)대일군생활재진령북파주지보호구내적진령금사후(Rhinopithecus roxellana)재자연서식지내공간이용적진행료연구.당후군재리개인공투식구진행자유활동시아문개시수집수거.결과표명:진령천금사후재불동년령성별조적개체대식피적공간이용명현불동, 타문화비매천활동적14%적시간재지면상활동,53%시간재수차처활동,33%적시간재수관중간활동.여기타년령성별개체상비,성년웅성유27%적관찰시간재지상활동,병차20%적취식시간혹29%적휴식시간시재지상적,명현지고우기타년령성별조적개체.군체천이시,성년웅성유53%적시간재지상이동,이지유13%적시간시재수관층이동적.재통과불동수관적시후,성년웅성경상회동시조주량변재파신체파과거.타문야경상하도지상천이이회피재수간도약.상비지하,아성년자성화청소년후경가경상지재저식피층화수관층중조식화휴식.타문명현지비성년후경가빈번지재수관중이동,각흔소하지.타문환경상사용도약적방식통과수관간적공극.종관찰도솔하수적사례분석,청소년후종수상솔하래적풍험비성년후대.본문진이토론료영향진령금사후공간분포화이동적인소,비여설신체적중량등[동물학보 52(3):429-436,2006].
We studied a free ranging provisioned group of the Sichuan snub-nosed monkey in their natural habitats. Group members spent 14% of their daytime on the ground, 53% in the low stratum and 33% in the canopy. Use of forest strata differed among age-sex classes. Adult males spent 27% of daytime on the ground, 20% of their foraging time on the ground and 29% of their resting time on the ground, all of which were significantly longer than the other classes. They traveled frequently on the ground (53%) but rarely in the canopy (15%). To cross canopy gaps they preferred to grasp the branches on both sides and then shifted themselves in one direction, however, they often descended to the ground to avoid leaping the gaps. In contrast, subadult females and juveniles foraged and rested mostly in the lower stratum and/or canopy. Subadult females and juveniles spent significantly more time traveling in the canopy than adult animals. They rarely foraged or rested on the ground and tended to cross the canopy gaps by leaping. Juveniles were at a greater risk of falling from trees than adults. Factors such as body weight that affected their spatial distribution and locomotion were also examined[Acta Zoologica Sinica 52(3):429-436,2006].