Subdepartment of Veterinary Anatomy, University of Cambridge, Tennis Court Road, Cambridge CB2 1QS. United Kingdom.
Am J Primatol. 1985;8(1):31-36. doi: 10.1002/ajp.1350080104.
Much information has been published concerning the accurary of various techniques commonly used for censusing primates. The sources of bias may vary according to the technique used. Accuracy may depend on population density as well as on differential visibility and hence detectability between areas. This paper provides evidence that primates may alter their behavior between areas of primary and selectively logged habitat, which in turn could affect census results. Adoption of cryptic behavior, changes in behavioral profile, and reduction in calling rates reduce the detectability of certain species. Increases in the frequency of subgrouping or in group dispersion may introduce a danger of overestimation of other species, unless differences in the size of foraging units are taken into account.
关于常用于灵长类动物计数的各种技术的准确性，已经发表了很多信息。偏差的来源可能因所使用的技术而异。准确性可能取决于种群密度，以及不同地区之间的可见度和可检测性差异。本文提供的证据表明，灵长类动物可能会在主要栖息地和选择性采伐栖息地之间改变行为，这反过来又可能影响计数结果。采用隐匿行为、行为特征的变化以及叫声频率的降低，会降低某些物种的可检测性。除非考虑到觅食单位大小的差异，否则分组频率的增加或群体分散可能会导致对其他物种的高估。
