USP Electronic Research Repository

Cycads in the insular south-west Pacific: dispersal or vicariance?

Keppel, Gunnar and Hodgskiss, P.D. and Plunkett, G.M. (2008) Cycads in the insular south-west Pacific: dispersal or vicariance? Journal of Biogeography, 35 (6). pp. 1004-1015. ISSN 0305-0270

Full text not available from this repository.


Cycads constitute an ancient plant group that is generally believed to disperse poorly. However, one group of cycads (subsection Rumphiae) is thought to have dispersed relatively recently from a Malesian source area westwards to East Africa and eastwards into the Pacific, using a floatation-facilitating layer in their seeds. We use morphological and allozyme characters to investigate the relationships among the species within this group and to deduce whether the wide distribution was achieved by recent dispersal (as evidenced by high genetic similarity) or more distant vicariance events (high genetic differentiation).

Item Type: Journal Article
Subjects: Q Science > QK Botany
Divisions: Faculty of Science, Technology and Environment (FSTE) > School of Biological and Chemical Sciences
Depositing User: Ms Neha Harakh
Date Deposited: 11 Jan 2008 00:33
Last Modified: 24 Jul 2012 04:15

Actions (login required)

View Item View Item