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Table 1 Gamma statistics and associated p values (two-tailed) for Blepharoneura and various subclades

From: Anatomy of a Neotropical insect radiation

Clade

Lineages

γ

p

Max % missing

(2-tailed)

All clades

all

1.45

0.147

ns

Clade A

all

1.21

0.225

ns

Clade B

all

−2.09

0.037

20%

Clade C

all

1.18

0.237

ns

All clades

>  1 Ma

−0.348

0.36

ns

Clade A

>  1 Ma

−1.25

0.11

ns

Clade B

>  1 Ma

−0.88

0.19

ns

Clade C

>  1 Ma

−0.45

0.33

ns

  1. Top four rows, “all” lineages = lineages differing by ≥ 3 observed mutations in mtCOI. Bottom four rows: results of analyses of tree truncated at 1 Ma. A significantly negative gamma indicates slowing of diversification near the present, and is most strongly affected by the most recent splits. P values shown assume complete taxon representation, calculated directly from the gamma statistics as shown by Pybus and Harvey [31]. The maximum percent missing column shows the highest percentage of missing taxa (in 10% increments) for simulations in which adjusted critical values for γ were higher than the γ value shown. ns indicates that the gamma value was not significant compared to the simulated null distribution even assuming complete taxon sampling