Table 2 Hypotheses tested and best model comparison

From: Aridification and major geotectonic landscape change shaped an extraordinary species radiation across a world’s extreme elevational gradient

Hypotheses

Assumption

Best model

AICc

Root areas

M0

- Unguided analysis

DEC

128.5

BCDE

M1

- Standard origin of New Guinean

- Custom dispersal matrix (standard)

DEC + J

116

ABCD

M2

- Standard origin of New Guinean

- Custom dispersal matrix (standard)

- w parameter

DEC + J

118.1

ABCD

M3

- Relaxed origin of New Guinean

- Custom dispersal matrix (relaxed)

DEC

127

BCDE

M4

- Relaxed origin of New Guinea

- Custom dispersal matrix (relaxed)

- w parameter

DEC + J

118.1

ABCD

  1. By standard origin, or New Guinea, we refer to the first emerged landmasses during the Miocene19, and the relaxed origin, or New Guinea, refers to the first emerged landmasses during the Oligocene23. Root areas represent the following states: East Asia (A), Australia (B), New Guinea (C), Pacific archipelagos (D), and New Zealand (E).
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