Table 3 Tribes (subtribes) and genera (clades) that were chosen to represent the study habitat type at global scale and within biogeographical realms (Afrotropics, Australasia/IndoMalaya, and Neotropics), respectively.

From: Higher evolutionary rates in life-history traits in insular than in mainland palms

 

Habitat type

Clade

Height (n) − Fruit size (n)

Description*

Global

Continental Islands

Dypsidinae (n = 167)

(158) − (110)

The subtribe is confined primarily to Madagascar (a continental island), but with outliers in eastern Africa and islands of the Indian ocean

Mainland

Iriarteeae (n = 32)

(31) − (31)

The tribe is confined to the Neotropical mainland, especially in South America

Volcanic Islands

Ptychospermatinae (n = 67)

(53) − (44)

This subtribe is widespread in volcanic islands and atolls (e.g. Caroline, Fiji, Mollucas, Samoa, Solomon, and some Philippines islands)**. However, some genera such as the Ptychosperma occurs primarily in the New Guinea (a continental island)**, as well as in East Malesia, Australia

Afrotropics

Continental Islands

Dypsis (n = 162)

(155) − (105)

The genus is confined primarily to Madagascar

Mainland

Raphia (n = 20)

(17) − (17)

The genus is confined primarily to the African mainland

Volcanic Islands

na

 

Australasia/IndoMalaya

Continental Islands

Calyptrocalyx (n = 26)

(26) − (25)

The genus is confined primarily to New Guinea

Mainland

Livistona (n = 28)

(26) − (26)

The great diversity of species occurs in Australia, but the genus is widespread in the Australasia realm including some islands, such as New Guinea and Solomon, as well as an outlier on Africa (Livistonia carinensis)

Volcanic Islands

Clinostigma (n = 10)

(10) − na

The genus is widespread throughout the volcanic islands and atolls** from the Pacific (e.g. Caroline, Fiji, New Ireland, Samoa, Solomon, Vanuatu)

Neotropics

Continental Islands

Coccothrinax (n = 51)

(27) − (17)

Species ranging from south Florida to Colombia, but the majority of species are confined to Cuba (a continental island)**

Mainland

Chamaedorea (n = 106)

(101) − (84)

Species are confined to the Neotropics mainland ranging from central Mexico to Brazil and Bolivia

Volcanic Islands

Pritchardia (n = 28)

(26) − (26)

Species are confined primarily to Hawaii

  1. Height: Maximum stem height (m); Fruit size: fruit diameter (m), n: the total number of species from clade51 and with trait (height and fruit size) data, na: lack of sufficient data {i.e. lack of clades representing a given habitat type (Afrotropics volcanic island) or less than 10 species with available fruit size data (Clinostigma).
  2. *Dransfield et al.23, Essig59.
  3. **UNEP (http://islands.unep.ch/isldir.htm).