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arXiv 1707.03047stat.AP
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动态时空生态过程的优化监测

Monitoring dynamic spatio-temporal ecological processes optimally

Perry J. Williams, Mevin B. Hooten, Jamie N. Womble, George G. Esslinger, Michael R. Bower

摘要:

人口动态在空间和时间上各不相同。忽略这些动态的调查设计可能是低效的,并且无法捕获过程的基本时空变异性。另外,动态调查设计明确纳入生态过程的知识,在这些过程中的相关不确定性,并可以优化监测目标。我们描述了一个有凝聚力的框架,监测人口的蔓延,明确联系动物运动模型与调查设计和监测目标。我们应用该框架开发一个最佳的调查设计海獭在冰川湾。海獭于1988年首次在冰川湾被发现,此后数量和分布都有所增加;数量估计从5只增加到5,000只以上,它们的传播速度超过每年2.7公里。通过明确地将动物运动模型和调查设计联系起来,我们能够减少与预测的占有率,丰度和分布相关的不确定性。我们描述的框架是一般的,我们概述了将其应用到新的系统和分类群的步骤。

英文摘要:

Population dynamics varies in space and time. Survey designs that ignore these dynamics may be inefficient and fail to capture essential spatio-temporal variability of a process. Alternatively, dynamic survey designs explicitly incorporate knowledge of ecological processes, the associated uncertainty in those processes, and can be optimized with respect to monitoring objectives. We describe a cohesive framework for monitoring a spreading population that explicitly links animal movement models with survey design and monitoring objectives. We apply the framework to develop an optimal survey design for sea otters in Glacier Bay. Sea otters were first detected in Glacier Bay in 1988 and have since increased in both abundance and distribution; abundance estimates increased from 5 otters to >5,000 otters, and they have spread faster than 2.7 km per year. By explicitly linking animal movement models and survey design, we were able to reduce uncertainty associated with predicted occupancy, abundance, and distribution. The framework we describe is general, and we outline steps to applying it to novel systems and taxa.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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