...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Methods in Ecology and Evolution >Towards good practice guidance in using camera-traps in ecology: influence of sampling design on validity of ecological inferences
【24h】

Towards good practice guidance in using camera-traps in ecology: influence of sampling design on validity of ecological inferences

机译：朝着在生态环境中使用相机陷阱的良好做法指南：抽样设计对生态推断有效性的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The development of camera-traps has provided an opportunity to study ecological relationships and population dynamics of species that are rare, difficult to observe or capture. Their use has seen a major increase recently, particularly with the recent progress in methods adapted to species for which individuals cannot be identified. We took advantage of extensive camera-trap data sets from large spatiotemporal-scale studies of a diverse assemblage of avian and mammalian scavengers in subarctic/arctic tundra to determine sampling designs that minimize detection errors (false-negative) and to evaluate the influence of sampling design on estimation of site occupancy. Results showed that raw error rates in daily presence varied between 5 and 30% among species when using time-triggered cameras with a 5-min interval. Using movement-triggered cameras resulted in larger raw error rates, between 30 and 70%, as well as a lower number of daily presences detected. Increasing the time interval from 5 to 20min greatly increased the raw error rate in daily presence, but it had negligible impacts on estimates and precision of occupancy and detection probability. Occupancy estimates were mostly influenced by variation in the number of days included during the sampling period. For most species, a threshold of between 20 and 30 problem-free days (i.e. without camera-related technical problems) was required to stabilize occupancy and detection probability, as well as to maximize their precision. Based on the results, we discuss guidelines for establishing sampling designs according to the different ecological questions researchers might want to answer. To our knowledge, our study is the first to directly test the influence of sampling design in camera-trap studies, providing guidelines that are likely to be directly applicable to a large range of species and ecosystems.
机译：相机陷阱的发展为研究稀有，难以观察或捕获的物种的生态关系和种群动态提供了机会。近来，特别是随着适应无法识别个体的物种的方法的进步，它们的使用已大大增加。我们利用来自大型时空研究的大量相机陷阱数据集，来研究北极和北极苔原中各种鸟类和哺乳动物的清道夫组合，从而确定可最大程度减少检测误差（假阴性）的采样设计，并评估采样的影响场地占用估算的设计。结果显示，当使用间隔为5分钟的时间触发相机时，物种之间每天存在的原始错误率在5％到30％之间变化。使用移动触发式摄像机会导致较大的原始错误率，介于30％到70％之间，并且每天检测到的次数更少。将时间间隔从5分钟增加到20分钟会极大地增加日常工作中的原始错误率，但对占用率和检测概率的估计，精确度的影响可以忽略不计。占用估计数主要受采样期间内天数变化的影响。对于大多数物种而言，需要一个介于20到30天之间的无问题天数（即没有相机相关的技术问题）的阈值，以稳定占用率和检测概率，并最大程度地提高其准确性。基于结果，我们讨论了根据研究人员可能想回答的不同生态问题建立抽样设计的准则。据我们所知，我们的研究是第一个直接测试相机陷阱研究中采样设计的影响的研究，提供了可能直接适用于大范围物种和生态系统的指南。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号