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. Author manuscript; available in PMC: 2008 Dec 10.
Published in final edited form as: Mol Ecol. 2004 Jun;13(6):1341–1356. doi: 10.1111/j.1365-294X.2004.02164.x

Table 5.

Summary statistics of selection gradients (β) and selection differentials (i) for phenotypic traits reported from 26 experimental studies

β
i
Taxonomic group Trait (n) Mean ± SE Median Trait (n) Mean ± SE Median
Plants 62 0.23 ± 0.02 0.19 58 0.37 ± 0.03 0.33
Animals 71 0.11 ± 0.02 0.09 5 0.33 ± 0.10 0.30
Fungi 0 29 0.57 ± 0.19 0.28