Pages Guillaume, Lloyd Emily, Suarez Scott A
Department of Anthropology, Stony Brook University, Stony Brook, NY 11794-4364, USA.
Folia Primatol (Basel). 2005 Nov-Dec;76(6):342-6. doi: 10.1159/000089532.
Resource use is known to influence the ranging behaviour of primates, and this effect may be pronounced when the resource is uncommon in the environment. Here we investigate the effect of geophagy on the ranging behaviour of Phayre's leaf monkeys (Trachypithecus phayrei) in the Phu Khieo Wildlife Sanctuary, Thailand. UTM coordinates were collected via GPS from the group centre every 30 min during all-day follows of one study group over a 4-month period. On days during which the group visited a distant saltlick (n = 3), the monkeys travelled significantly further (p < 0.001), significantly faster (p < 0.001) and with fewer stops compared to non-saltlick days (n = 61). Saltlick visits also increased the home range size from 73.7 ha to 93.4 ha. Increased daily path length, increased travel speed and consistent pace are necessary because of the distance from the saltlick to the regularly used portion of the home range, and these reflect the import- ance of soil consumption to the leaf monkeys.
已知资源利用会影响灵长类动物的活动范围行为，当资源在环境中不常见时，这种影响可能会很明显。在这里，我们研究了食土行为对泰国普基奥野生动物保护区菲氏叶猴（Trachypithecus phayrei）活动范围行为的影响。在4个月的时间里，对一个研究群体进行全天跟踪时，每隔30分钟通过GPS从群体中心收集通用横轴墨卡托坐标（UTM坐标）。与未访问盐渍地的日子（n = 61）相比，在群体访问远处盐渍地的日子（n = 3）里，猴子的行进距离显著更远（p < 0.001），速度显著更快（p < 0.001），且停留次数更少。访问盐渍地还使活动范围面积从73.7公顷增加到93.4公顷。由于盐渍地到活动范围常用区域的距离，每日路径长度增加、行进速度加快以及步伐一致是必要的，这些反映了土壤消耗对叶猴的重要性。
