
%0 Journal Article
%A Starr, G. J. 
%A Carthew, S. M. 
%T Genetic Differentiation in Isolated Populations of <emph type="2">Hakea carinata</emph> (Proteaceae)
%J Australian Journal of Botany
%D 1999/03/17
%V 46
%N 6
%P 671-682
%K 
%R https://doi.org/10.1071/BT97123
%U https://www.publish.csiro.au/paper/BT97123 
%X Fragmentation of the landscape by human activity has created small, isolated plant populations. Hakea carinata F. Muell. ex Meissner, a sclerophyllous shrub, is common in isolated fragments of vegetation in South Australia. This study investigated whether habitat fragmentation has caused restrictions to gene flow between populations. Gene diversity (HT = 0.317) is average for similar species but little is held within populations (HS = 0.168) and 46.9% of gene diversity is accounted for between populations. Estimates of gene flow are NM = 0.270 (based on FST) and NM = 0.129 (based on private alleles). Populations are substantially selfing (t = 0.111). Small isolated populations appears to be a long-term evolutionary condition in this species rather than a consequence of habitat fragmentation; however, population extinctions are occurring. Conservation will require the reservation of many populations to represent the genetic variation present in the species. 
