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Evaluating the ecological integrity of Atlantic forest remnants by using rapid ecological assessment

机译：通过快速生态评估来评估大西洋森林残留物的生态完整性

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摘要

The need for quick identification of priority areas for biodiversity protection makes rapid assessment methods important management tools for defining conservation strategies. An increasingly used rapid assessment method is rapid ecological assessment (REA), a fast and flexible survey directed toward selected indicator species and vegetation forms. The purpose of this study was to propose and test REA based on plant community features of the semidecid-uous Atlantic forest (SAF). Correlation tests were performed between data collected by REA and plant species diversity, richness, and abundance collected by conventional woody plant inventory methods. The study was conducted in 21 SAF patches in Northern Parana State, Brazil. The phytosociological inventory was conducted along a single transect and required 2 days to complete (excluding time spent for herbarium identification), whereas REA was conducted along three to four transects per working day. REA results correlated positively with woody plant diversity, proving REA to be an efficient method for defining the conservation status of SAF fragments, but accuracy of evaluations of threats to biological integrity are relatively low. Both the selection of appropriate variables and the skill level of field staff are critical and can strongly influence REA results.
机译：快速识别生物多样性保护优先领域的需求使快速评估方法成为定义保护战略的重要管理工具。快速使用的快速评估方法是快速生态评估（REA），它是针对所选指示物种和植被形式的快速灵活的调查。这项研究的目的是基于半落叶大西洋森林（SAF）的植物群落特征提出并测试REA。在通过REA收集的数据与通过常规木本植物清点方法收集的植物物种多样性，丰富度和丰度之间进行了相关性测试。该研究在巴西北帕拉纳州的21个SAF斑块中进行。植物生理学调查是沿着一个样条进行的，需要2天才能完成（不包括用于标本室识别的时间），而REA是每个工作日进行3到4个样条进行的。 REA结果与木本植物多样性呈正相关，证明REA是定义SAF片段保护状态的有效方法，但对生物完整性威胁评估的准确性相对较低。选择合适的变量和现场人员的技能水平都至关重要，并且会严重影响REA结果。

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