Table 5. Interpretation of the results of the NCA (Fig. 2 in the main text) by using the Templeton key of inference

Nested clade

Chain of inference

Clade A

Nested clade

Chain of inference

Clade B

4.1

1-2-11-12-13-YES

LDC out of Sierra Negra to Alcedo, Darwin, Cerro Azul

3.3

1-2-11-12-13-YES

LDC from southern to central volcanoes

3.1

1-2-3-4-NO

IBD from Santiago to Wolf

3.4

1-2-3-5-6-13-14-YES

LDC from Sierra Negra to Cerro Azul

3.2

1-2-11-17-4-NO

IBD from Sierra Negra to Cerro Azul

2.3

1-2-3-4-NO

IBD from Sierra Negra to Cerro Azul

2.1

1-2-3-5-6

LDC or LDD, origin ambiguous

2.7

1-2-11-17-4-NO

IBD from Sierra Negra to Cerro Azul

2.2

1-2-3-5-6

LDC or LDD, origin ambiguous

2.8

1-2-3-5-6

LDC or LDD in southern volcanoes

2.6

1-2-3-5-15-NO

PF into a Alcedo-Darwin and a Cerro Azul clade

1.8

1-2-11-12-13-14-YES

LDC from Cerro Azul to Sierra Negra

1.1

1-2-3-4-NO

IBD, origin ambiguous

1.9

1-2-11-12-13-14-YES

LDC from Sierra Negra to Cerro Azul

1.3

1-2-3-4-NO

IBD, origin ambiguous

1.18

1-2-11-12-13-14-YES

LDC from Cerro Azul to Sierra Negra

1.12

1-2-3-5-6

LDC or LDD between southern and central

1.14

1-2-11-12-13-14-YES

LDC between Darwin and Alcedo, origin ambiguous

1.7

1-2-3-5-6

LDC or LDD from Sierra Negra to Cerro Azul

Inferences are show from oldest (top) to most recent (bottom). LDC, range expansion with long distance colonization; IBD, gene flow restricted by isolation by distance; PF, past fragmentation into two allopatric groups; LDD, restricted gene flow with long-distance dispersal.