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首页> 外文期刊>European Journal of Wildlife Research >Comparing methods for sampling large- and medium-sized mammals: camera traps and track plots
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Comparing methods for sampling large- and medium-sized mammals: camera traps and track plots

机译：比较大中型哺乳动物的采样方法：相机陷阱和轨迹图

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摘要

Activities involving fauna monitoring are usually limited by the lack of resources; therefore, the choice of a proper and efficient methodology is fundamental to maximize the cost–benefit ratio. Both direct and indirect methods can be used to survey mammals, but the latter are preferred due to the difficulty to come in sight of and/or to capture the individuals, besides being cheaper. We compared the performance of two methods to survey medium and large-sized mammal: track plot recording and camera trapping, and their costs were assessed. At Jataí Ecological Station (S21°31'15"–W47°34'42"-Brazil) we installed ten camera traps along a dirt road directly in front of ten track plots, and monitored them for 10 days. We cleaned the plots, adjusted the cameras, and noted down the recorded species daily. Records taken by both methods showed they sample the local richness in different ways (Wilcoxon, T = 231; p ;; 0.01). The track plot method performed better on registering individuals whereas camera trapping provided records which permitted more accurate species identification. The type of infra-red sensor camera used showed a strong bias towards individual body mass (R 2 = 0.70; p = 0.017), and the variable expenses of this method in a 10-day survey were estimated about 2.04 times higher compared to track plot method; however, in a long run camera trapping becomes cheaper than track plot recording. Concluding, track plot recording is good enough for quick surveys under a limited budget, and camera trapping is best for precise species identification and the investigation of species details, performing better for large animals. When used together, these methods can be complementary.
机译：涉及动物监测的活动通常因缺乏资源而受到限制；因此，选择合适而有效的方法对于最大化成本效益比至关重要。直接和间接方法都可用于调查哺乳动物，但后者是首选，因为它不仅成本低廉，而且难以看到和/或捕获个体。我们比较了两种方法对中型和大型哺乳动物的调查性能：轨迹图记录和相机诱捕，并评估了它们的成本。在贾塔伊生态站（S21°31'15“ –W47°34'42”-巴西），我们沿着一条土路在十条田径场的正前方安装了十个摄像头陷阱，并对其进行了10天的监控。我们清理了地块，调整了摄像机，并每天记录下来的物种。两种方法的记录表明，他们以不同的方式采样了当地的丰富度（Wilcoxon，T = 231； p ；； 0.01）。轨迹图方法在注册个人时表现更好，而相机诱捕则提供了记录，可以更准确地识别物种。所使用的红外传感器相机类型显示出对个体体重的强烈偏见（R 2 = 0.70; p = 0.017），并且在10天的调查中此方法的可变费用约为2.04倍比轨迹图法更高但是，从长远来看，摄像头陷印要比轨迹图记录便宜。最后，轨迹图记录足以在有限的预算内进行快速勘测，而相机诱集最适合用于精确的物种识别和物种细节调查，对大型动物而言表现更好。当一起使用时，这些方法可以互补。

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  • 来源
    《European Journal of Wildlife Research》 |2008年第4期|739-744|共6页
  • 作者

    Maria Carolina Lyra-Jorge; Giordano Ciocheti; Vânia Regina Pivello; Sérgio Tadeu Meirelles;

  • 作者单位

    Departamento de Ecologia Universidade de São Paulo Rua do Matão Travessa 14 321 CEP 05508900 Cidade Universitária São Paulo Brazil;

    Departamento de Ecologia Universidade de São Paulo Rua do Matão Travessa 14 321 CEP 05508900 Cidade Universitária São Paulo Brazil;

    Departamento de Ecologia Universidade de São Paulo Rua do Matão Travessa 14 321 CEP 05508900 Cidade Universitária São Paulo Brazil;

    Departamento de Ecologia Universidade de São Paulo Rua do Matão Travessa 14 321 CEP 05508900 Cidade Universitária São Paulo Brazil;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Animal survey method; Camera trap; Track plot;

    机译：动物调查方法;相机陷阱;轨迹图;

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