Biogeography of the fauna of French Polynesia: diversification within and between a series of hot spot archipelagos.
The islands of French Polynesia cover an area the size of Europe, though total land area is smaller than Rhode Island. Each hot spot archipelago (Societies, Marquesas, Australs) is chronologically arranged. With the advent of molecular techniques, relatively precise estimations of timing and source of colonization have become feasible. We compile data for the region, first examining colonization (some lineages dispersed from the west, others from the east). Within archipelagos, blackflies (Simulium) provide the best example of adaptive radiation in the Societies, though a similar radiation occurs in weevils (Rhyncogonus). Both lineages indicate that Tahiti hosts the highest diversity. The more remote Marquesas show clear examples of adaptive radiation in birds, arthropods and snails. The Austral Islands, though generally depauperate, host astonishing diversity on the single island of Rapa, while lineages on other islands are generally widespread but with large genetic distances between islands. More recent human colonization has changed the face of Polynesian biogeography. Molecular markers highlight the rapidity of Polynesian human (plus commensal) migrations and the importance of admixture from other populations during the period of prehistoric human voyages. However, recent increase in traffic has brought many new, invasive species to the region, with the future of the indigenous biota uncertain.
Gillespie
Rosemary G
RG
Department of Environmental Science, University of California, 137 Mulford Hall, Berkeley, CA 94720-3114, USA. gillespie@berkeley.edu
Claridge
Elin M
EM
Goodacre
Sara L
SL
D000818:Animals; D044822:Biodiversity; D005075:Biological Evolution; D005843:Geography; D055593:Geological Phenomena; D005844:Geology; D008957:Models, Genetic; D010802:Phylogeny; D011114:Polynesia; D011157:Population Dynamics
Mol Phylogenet Evol. 2002 Jan;22(1):31-42
11796027
Mol Ecol. 2002 Jan;11(1):55-68
11903904
Annu Rev Entomol. 2002;47:595-632
11729086
Syst Biol. 2001 Feb;50(1):18-38
12116592
Proc Biol Sci. 2006 Dec 7;273(1604):2935-44
17015360
Am J Hum Genet. 1995 Aug;57(2):403-14
7668267
Proc Biol Sci. 2001 Jan 7;268(1462):1-7
12123290
Curr Biol. 2007 Jul 3;17(13):R502-3
17610827
J Insect Sci. 2005 Dec 22;5:41
17119623
Am J Trop Med Hyg. 2000 Feb;62(2):217-24
10813476
Heredity (Edinb). 2007 Oct;99(4):452-9
17611492
Proc Natl Acad Sci U S A. 2007 Mar 20;104(12):4834-9
17360400
Am J Bot. 2007 Feb;94(2):210-8
21642223
Proc Natl Acad Sci U S A. 2000 Jul 18;97(15):8225-8
10899994
Mol Phylogenet Evol. 2006 Nov;41(2):472-95
16837219
Mol Ecol. 2008 Jan;17(1):45-57
17727622
Proc Natl Acad Sci U S A. 2000 Apr 11;97(8):4118-23
10725356
Proc Biol Sci. 2007 Nov 22;274(1627):2907-14
17848368
Proc Natl Acad Sci U S A. 2004 Jun 15;101(24):9167-72
15184658
Evolution. 1997 Jun;51(3):906-921
28568588