Fingerprint localisation for fine-scale wildlife tracking using automated radio telemetry

IF 6.3 2区 环境科学与生态学 Q1 ECOLOGY
Chris Tyson, Rita Fragueira, Emilio Sansano-Sansano, Hui Yu, Marc Naguib
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Abstract

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利用自动无线电遥测技术进行指纹定位以实现对野生动物的精细追踪
自动无线电遥测系统是在精细时空尺度上追踪野生动物的最广泛应用方法之一。一个日益增长的趋势是,这些系统应用大型接收器网络来检测无线电标记个体的无线电信号强度(RSS)。然而,在野生动物追踪领域,利用 RSS 定位得出位置估计值的分析方法还相对欠缺。在这里,我们应用室内定位系统的方法开发了一种新方法--无线电指纹法,用于在结构复杂的室外环境中定位无线电标记的动物。这种方法通过描述已知位置的 RSS 模式来生成研究区域的无线电地图,然后利用该地图预测新 RSS 模式的位置。我们进行了实地测试,以评估无线电指纹法相对于多方位定位法(一种常用的 RSS 定位方法)的定位精度。为此,我们建立了一个覆盖多种栖息地类型的实验接收器网络,并比较了无线电指纹定位与多射程定位的定位精度。此外,我们还评估了典型跟踪数据集的各种特征如何影响两种方法的准确性。虽然两种方法在理想条件下(约 30 米)的中位数误差相似,但无线电指纹定位法与多方位定位法相比具有一些优势。多方位定位估计值受距离测试点最近的接收器漏检的影响很大,漏检率高达 30%。在这些情况下,误差中值为 103 米,增加了 3.5 倍多。与最近接收器的距离也会对多站标定估算产生偏差,误差随着距离的增加而增大。此外,在植被更茂密的地区,多方位定位估算的误差也更大。与此相反,指纹定位估计值在上述各种情况下都非常稳健。自动无线电遥测技术能够对栖息在牧场的动物进行精细、连续的追踪。由于栖息地的异质性和漏检,标准定位方法容易出错。这种方法可应用于任何自动无线电遥测硬件和任何可生成无线电地图的研究系统。
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来源期刊
CiteScore
11.60
自引率
3.00%
发文量
236
审稿时长
4-8 weeks
期刊介绍: A British Ecological Society journal, Methods in Ecology and Evolution (MEE) promotes the development of new methods in ecology and evolution, and facilitates their dissemination and uptake by the research community. MEE brings together papers from previously disparate sub-disciplines to provide a single forum for tracking methodological developments in all areas. MEE publishes methodological papers in any area of ecology and evolution, including: -Phylogenetic analysis -Statistical methods -Conservation & management -Theoretical methods -Practical methods, including lab and field -This list is not exhaustive, and we welcome enquiries about possible submissions. Methods are defined in the widest terms and may be analytical, practical or conceptual. A primary aim of the journal is to maximise the uptake of techniques by the community. We recognise that a major stumbling block in the uptake and application of new methods is the accessibility of methods. For example, users may need computer code, example applications or demonstrations of methods.
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