Ecology, evolution and 1/f-noise
Ecology, evolution and 1/f-noise
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DOI：
10.1016/0169-5347(96)81067-6
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发表时间：
1996-01-01
影响因子：
16.8
通讯作者：
Halley, JM
中科院分区：
文献类型：
--
作者：
Halley, JM
在生态学家中，越来越多的人认识到环境时间序列中长期相关性的重要性，1/f噪声家族-根据不同时间尺度定义的波动-是解决这个问题的有用方法，白噪声和随机漫步，目前最受欢迎的两种环境波动描述，位于这一过程家族的极端末端，最近的数据分析，模型结果，以及对基本1/f噪声特性的检验表明，位于白噪声和随机游走之间的粉红色1/f噪声可能是环境变化的最佳零模型。如果这是真的，这将对生态时间序列的解释以及生态和进化模型产生重要影响。
Among ecologists, there has been a growing recognition of the importance of long-term correlations in environmental time series, The family of 1/f-noises-fluctuations defined in terms of the different timescales present - is a useful approach to this problem, White noise and the random walk, the two currently favoured descriptions of environmental fluctuations, lie at extreme ends of this family of processes, Recent analyses of data, results of models, and examination of basic 1/f-noise properties, suggest that pink 1/f-noise, which lies midway between white noise and the random walk, might be the best null model of environmental variation, If true, this would have important consequences for the interpretation of ecological time series and for ecological and evolutionary modelling.