关于外来物种的统计机制
On the statistical machinery of alien species
摘要：
许多植物物种都是在它们不熟悉的地区被发现的，它们的全球分布被发现表现出几种显著的模式，其特征是通过麦克阿瑟的断棒版本可能出现的那种指数函数。我们在这里表明，这些不同的模式都是定量再现一个简单的算法，在一个单一的参数-一个单一的坚持要打破。该算法承认生态位结构随时间和生产力波动的生物学解释，与网站和物种高度特异性。从技术上讲，这是统计力学在生态学中的应用，与我们熟悉的在物种丰度分布中的应用大不相同。
英文摘要：
Many species of plants are found in regions to which they are alien and their global distribution has been found to exhibit several remarkable patterns,characterised by exponential functions of the kind that could arise through versions of MacArthur's broken stick. We show here that these various patterns are all quantitatively reproduced by a simple algorithm, in terms of a single parameter- a single stick to be broken. This algorithm admits a biological interpretation in terms of niche structures fluctuating with time and productivity; with sites and species highly idiosyncratic. Technically, this is an application of statistical mechanics to ecology quite different from the familiar application to species abundance distributions.
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。
