Equability (increasing dominance) in relative frequencies of diatom species in NSB occurrence data over the Cenozoic.
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a) Dimensionless shape metric D(80), defined as fraction of total diversity reached in ranked frequency occurrence data at 80% of total area. For data with all frequencies equal (flat black line) D(80) = 0.8; D(80) decreases with increasingly unequal frequencies. b) D(80) vs time in Cenozoic NSB diatom data. Age scale: [43].
创建时间：
2016-02-23
