Kunin WE
Centre for Biodiversity and Conservation, School of Biology, University of Leeds, Leeds, LS2 9JT, UK. E-mail:
Science. 1998 Sep 4;281(5382):1513-5. doi: 10.1126/science.281.5382.1513.
The analysis, measurement, and management of species abundance is central to ecology and conservation biology, but it has proved difficult to find a single index that adequately reflects the commonness or rarity of species across a range of spatial scales. Here, a scale-independent measure of species abundance is developed, using presence-absence maps at varying spatial resolutions. By extrapolating such "scale-area" curves, species abundance can be estimated accurately even at scales finer than those used to parameterize the model, a task that had previously been deemed impossible in principle.
物种丰度的分析、测量和管理是生态学和保护生物学的核心，但事实证明，很难找到一个单一指标来充分反映物种在一系列空间尺度上的常见或稀有程度。在此，利用不同空间分辨率下的存在-缺失图，开发了一种与尺度无关的物种丰度测量方法。通过外推此类“尺度-面积”曲线，即使在比用于参数化模型的尺度更精细的尺度上，也能准确估计物种丰度，而这一任务此前在原则上被认为是不可能的。
