The Sphingidae of Southeast-Asia
(incl. New Guinea, Bismarck & Solomon Islands) Back to diversity & distribution
by Jan Beck & Ian J. Kitching
Patterns of diversity and distribution: Cluster analysis based on Bray-Curtis distances
Single-linkage cluster analysis of 38 expected island faunas, based on Bray-Curtis distance measures. The Bray-Curtis index is closely related to the Sørensen index, particularely for presence-absence data as we used it (see e.g. Southwood & Henderson 2000). Superscript numbers indicate nested island faunas (i.e. faunas of small islands which are completely contained in the faunas of a nearby larger island), which were excluded from cluster analysis. A linkage diagram helps to understand the patterns.
Nested island faunas:
1) Damar, Leti, Roma & Sermatta ('Bandar Daya islands')
2) Adonara & Lembata ('Solor archipelago')
3) Sumba, Komodo
4) Yamdena, Selaru & Larat ('Tanimbar islands')
5) Kolombangara, New Georgia, Rendova & Vella Lavella
6) Florida, Isabel, Makira, Malaita, Rennel, San Jorge & Santa Cruz
7) Alu
8) Ambon & Kelang
9) Bacan & Gebi
10) Bangai, Sangir, Selayer & Sula
11) Dyaul, Lavongai, Manus & Mussau
12) Natuna
13) Banka, Sabang, Nias, Simeuloe, Pagai Pagai, Pini & Mentawi
14) Bali
15) Balabac, Calamian & Dumaran
16) Bohol & Siquijor
17) Sibuyan
18) Dinagat, Homohon, Panaon, Taytay & Samar
19) Burias, Camiguin de Luzon, Catanduanes, Marinduque, Masbate, Polillo & Ticao
20) Basilan, Camiguin de Mindanao & Calayan
21) Biak, Dampier, Ferguson, Goodenough, Mefor, Misol, Rossel, St. Aignan, Sudest, Trobriand, Woodlark & Waigeo
22) Nicobar