Department of Anthropology, University of Missouri.
Am J Hum Biol. 2014 Jul-Aug;26(4):570-2. doi: 10.1002/ajhb.22552. Epub 2014 Apr 21.
Greater Amazonia harbors as many as 100 locations of isolated indigenous peoples. Few options are available to assess the demographic health of these populations given their limited contact with the outside world. Remote sensing offers one option.
An isolated village in Brazil near the Peruvian border is visible with Google Earth imagery from 2006. The area of the fields and village, as well as the living area of the four longhouses, are measured and compared to population-by-area measurements for 71 other Brazilian indigenous communities.
The estimated population of the village is no more than 40 people. A village as small as this one, if it has become disconnected from a metapopulation, risks imminent extinction if it has fallen below a minimum viable population size.
An active remote surveillance program is urgently needed to track the movements and demographic health of isolated peoples in hopes of improving their dire chances for long-term survival. They need protected areas that are large enough to mitigate against external threats.
亚马逊河流域拥有多达 100 个与世隔绝的土著人居住地。由于这些人群与外界的接触有限，评估其人口健康状况的选择很少。遥感提供了一种选择。
利用谷歌地球图像，可以从 2006 年的视角看到巴西与秘鲁边境附近的一个孤立村庄。测量了田野和村庄的面积，以及四座长屋的居住面积，并将其与其他 71 个巴西土著社区的面积与人口比进行了比较。
这个村庄的估计人口不超过 40 人。如果像这样一个小村庄已经与汇群隔绝，那么如果它的人口已经低于最小生存种群规模，就有灭绝的危险。
迫切需要开展积极的远程监测计划，以跟踪与世隔绝的人群的迁徙和人口健康状况，希望能提高他们长期生存的渺茫机会。他们需要有足够大的保护区，以减轻外部威胁。
