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Puma Puma concolor density estimation in the Mediterranean Andes of Chile

机译：智利地中海安第斯山脉的美洲豹美洲豹全色密度估计

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摘要

Knowledge about the puma Puma concolor in the Mediterranean Andes of South America is scarce, with little information available about its distribution and ecology. The species has been hunted in the region for centuries and seems to be relegated to remote areas, where it still comes into conflict with rural communities. Camera-trap surveys have been used to estimate puma density across the species' distribution, and this is a relatively cost-effective approach to generate information about species abundance. We tested the performance of this method in the Andes of central Chile, where the rugged topography, unknown detection probability, and an expected low density make abundance estimation by other methods unreliable or expensive. Using a rotation of 17 camera-trap stations, for a total of 680 camera-days, we obtained 16 records of pumas and were able to identify four individuals in an effective sampling area of 628 km(2) (1/2 mean maximum distance moved) or 1,518 km(2) (mean maximum distance moved). Capture-recapture models estimated a minimum density of 0.3 +/- SE 0.07 to 0.75 +/- SE 0.17 adult pumas per 100 km(2). This is the first estimate of the density of the puma in the Mediterranean Andes, and one of the lowest reported for the Neotropics. Although this low abundance does not necessarily imply a threat to the species, it suggests that the population is potentially vulnerable to threats such as illegal hunting. Our findings demonstrate that camera trapping is an effective technique in difficult field conditions and may be the most appropriate method to assess puma densities in this region.
机译：关于南美美洲安第斯山脉美洲狮美洲豹的知识很少，几乎没有关于其分布和生态的信息。该物种已经在该地区被捕猎了多个世纪，并且似乎被放逐到偏远地区，在那里仍然与农村社区发生冲突。相机诱集调查已被用来估计整个物种分布中的美洲豹密度，这是一种相对经济有效的方法，可产生有关物种丰富度的信息。我们在智利中部的安第斯山脉测试了该方法的性能，那里崎top的地形，未知的检测概率以及预期的低密度，使得采用其他方法估算的丰度不可靠或昂贵。使用17个摄影机捕获站的旋转，总共680个摄影日，我们获得了16条美洲狮记录，并能够在628 km（2）的有效采样区域（平均最大距离的1/2）中识别出4个人移动）或1,518 km（2）（平均最大移动距离）。捕获-捕获模型估计的最小密度为每100 km（0.3±SE 0.07至0.75 +/- SE 0.17）成年美洲豹（2）。这是对地中海安第斯山脉美洲狮密度的首次估计，也是新热带地区报道的最低密度之一。尽管这种低丰度并不一定意味着对该物种构成威胁，但它表明该种群可能容易受到诸如非法狩猎等威胁的威胁。我们的发现表明，在困难的野外条件下，相机诱捕是一种有效的技术，并且可能是评估该地区美洲豹密度的最合适方法。

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  • 来源
    《Oryx》 |2017年第2期|263-267|共5页
  • 作者

    Guarda Nicolas; Galvez Nicolas; Leichtle Jorge; Osorio Christian; Bonacic Cristian;

  • 作者单位

    Pontificia Univ Catolica Chile, Fac Agron & Forestry, Dept Ecosyst & Environm, Fauna Australis Wildlife Lab, El Monasterio 932, Santiago, Chile;

    Pontificia Univ Catolica Chile, Fac Agron & Forestry, Dept Ecosyst & Environm, Fauna Australis Wildlife Lab, El Monasterio 932, Santiago, Chile|Pontificia Univ Catolica Chile, Dept Nat Sci, Campus Villarrica, Santiago, Chile|Pontificia Univ Catolica Chile, Ctr Local Dev, Campus Villarrica, Santiago, Chile;

    Pontificia Univ Catolica Chile, Fac Agron & Forestry, Dept Ecosyst & Environm, Fauna Australis Wildlife Lab, El Monasterio 932, Santiago, Chile;

    Pontificia Univ Catolica Chile, Fac Agron & Forestry, Dept Ecosyst & Environm, Fauna Australis Wildlife Lab, El Monasterio 932, Santiago, Chile;

    Pontificia Univ Catolica Chile, Fac Agron & Forestry, Dept Ecosyst & Environm, Fauna Australis Wildlife Lab, El Monasterio 932, Santiago, Chile;

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  • 正文语种 eng
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  • 关键词

    Camera trap; Chile; density; mean maximum distance moved; Mediterranean Andes; Puma concolor;

    机译：相机陷阱;智利;密度;平均最大移动距离;地中海安第斯山脉;美洲豹彩色;

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