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Creating benchmark measurements of tropical forest bird communities in large plots
The Condor: Ornithological Applications ( IF 2.4 ) Pub Date : 2020-04-15 , DOI: 10.1093/condor/duaa015 W Douglas Robinson 1 , Jenna R Curtis 1
The Condor: Ornithological Applications ( IF 2.4 ) Pub Date : 2020-04-15 , DOI: 10.1093/condor/duaa015 W Douglas Robinson 1 , Jenna R Curtis 1
Affiliation
An understanding of how tropical bird communities might respond to climate change and other types of environmental stressors seems particularly urgent, yet we still lack, except for a few sites, even snapshot inventories of avian richness and abundances across most of the tropics. Such benchmark measurements of tropical bird species richness and abundances could provide opportunities for future repeat surveys and, therefore, strong insight into degrees and pace of change in community organization over time. The challenges of creating a network of benchmarked sites include high variation in detectability among species, general rarity of many species that creates hurdles for use of modern bird counting methods aimed at controlling for variation in detectability, and lack of a standardized protocol to create repeatable inventories. We argue that reasonably complete inventories of tropical bird communities require use of multiple survey techniques to provide internal calibrations of abundance estimates and require multiple visits to improve completeness of richness inventories. We suggest that a network of large (50–100 ha) plots scattered across the tropics can also provide insights into geographic variation in and drivers of avian community structure analogous to insights provided by the Smithsonian Center for Tropical Forest Science Forest Global Earth Observatory network of forest dynamics plots. Perhaps most importantly, large plots provide opportunities for use of multiple survey techniques to estimate abundances while also using some exactly repeatable survey techniques that can greatly improve abilities to quantify change over time. We provide guidance on establishment of and survey methods for large tropical bird plots as well as important recommendations for collection and archiving of metadata to safeguard the long-term utility of valuable benchmark data.
中文翻译:
在大片土地上建立热带森林鸟类群落的基准测量
理解热带鸟类群落如何应对气候变化和其他类型的环境压力似乎尤为紧迫,但除少数地点外,我们仍然缺乏,甚至在大多数热带地区都没有禽类丰富度和丰富度的快照清单。这种热带鸟类物种丰富度和丰度的基准测量可以为将来的重复调查提供机会,因此,可以深入了解社区组织随时间变化的程度和速度。建立基准站点网络的挑战包括物种之间可检测性的高度差异,许多物种的普遍稀有性,这些缺陷为使用旨在控制可检测性变化的现代鸟类计数方法创造了障碍,并且缺乏创建可重复清单的标准化协议。我们认为,热带鸟类群落的合理完整清单需要使用多种调查技术来提供对丰度估计的内部校准,并且需要多次访问以提高丰富度清单的完整性。我们建议,散布在热带地区的大型(50–100公顷)地块网络还可以提供类似于史密森尼热带森林科学中心森林全球地球观测网提供的见解的洞察力,了解鸟类群落结构的地理变异和动因。森林动力学图。也许最重要的是,大型地块提供了使用多种调查技术估算丰度的机会,同时还使用了一些可重复的精确调查技术,这些技术可以大大提高量化随时间变化的能力。
更新日期:2020-04-15
中文翻译:
在大片土地上建立热带森林鸟类群落的基准测量
理解热带鸟类群落如何应对气候变化和其他类型的环境压力似乎尤为紧迫,但除少数地点外,我们仍然缺乏,甚至在大多数热带地区都没有禽类丰富度和丰富度的快照清单。这种热带鸟类物种丰富度和丰度的基准测量可以为将来的重复调查提供机会,因此,可以深入了解社区组织随时间变化的程度和速度。建立基准站点网络的挑战包括物种之间可检测性的高度差异,许多物种的普遍稀有性,这些缺陷为使用旨在控制可检测性变化的现代鸟类计数方法创造了障碍,并且缺乏创建可重复清单的标准化协议。我们认为,热带鸟类群落的合理完整清单需要使用多种调查技术来提供对丰度估计的内部校准,并且需要多次访问以提高丰富度清单的完整性。我们建议,散布在热带地区的大型(50–100公顷)地块网络还可以提供类似于史密森尼热带森林科学中心森林全球地球观测网提供的见解的洞察力,了解鸟类群落结构的地理变异和动因。森林动力学图。也许最重要的是,大型地块提供了使用多种调查技术估算丰度的机会,同时还使用了一些可重复的精确调查技术,这些技术可以大大提高量化随时间变化的能力。