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原文連結
論文資訊
- 類型：已發表論文
- 日期：2011
摘要
We analyzed the 統計 distribution of intra- specific local abundances for a set North American breeding bird 物種. We constructed frequency plots for every 物種 and found that they showed long-tail power-law behavior, truncated at an upper abundance cut-off value. Based on finite size 縮放律 arguments, we investigated whether frequency curves may be considered scaled copies of each other. Data collapse was possible after taking powers of the total abundance of each 物種, in order to correct deviations from the underlying universal finite size 縮放律 function (UFSS). The UFSS 冪次定律 exponent oscillated in time within the regime of unbounded variance, which is consistent with the wild fluctuations that characterize ecological phenomena. We speculate that our results may eventually be linked to other law-lik
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