Comparative analysis of genetic diversity in wild and restored subtropical rainforest trees: Argyrodendron trifoliolatum, Ficus watkinsiana, and Diploglottis australis
Sally L. Cooper, Peter C. Bundock and Catherine Nock
Since European settlement of Australia, substantial areas of subtropical rainforest have been cleared. More recently, effort is being made to restore areas of this ecological community. The financial investment and increasing reliance on ecological restoration in biodiversity conservation justifies a need for better understanding of how to improve success at the genetic level. This research measures genetic diversity (allelic richness [Rs], expected heterozygosity [He], and inbreeding using Wright's coefficient [F-IS]) for expected neutral DNA markers in three Australian subtropical rainforest trees-White booyong (Argyrodendron trifoliolatum), Watkin's fig (Ficus watkinsiana), and Native tamarind (Diploglottis australis). Wild and restored populations of these species were compared in two neighboring regions in Northeast New South Wales (the Tweed Caldera and the Big Scrub). There were no statistically significant differences in Rs or He between wild and restored populations for any of the target species. Inbreeding was significantly higher in one of the restored versus wild population comparisons: F. watkinsiana in the Tweed (restored F = 0.20; wild F = -0.02; p = 0.01). The comparable levels of genetic diversity observed in restored and wild populations targeted in this study are likely due to informed practitioner perspectives and practices, staged plantings over several years, and high genetic diversity and low genetic differentiation within source populations.
Details
Title
Comparative analysis of genetic diversity in wild and restored subtropical rainforest trees: Argyrodendron trifoliolatum, Ficus watkinsiana, and Diploglottis australis
Creators
Sally L. Cooper - Southern Cross University
Peter C. Bundock - Southern Cross University
Catherine Nock - Southern Cross University
Publication Details
Restoration ecology, Vol.32(8), pp.1-11
Publisher
Wiley Periodicals LLC on behalf of Society for Ecological Restoration.
Number of pages
11
Grant note
Skyrail Rainforest Foundation Limited (Skyrail Rainforest Research Fund)
Tweed Shire Council (Biodiversity Grant)
Wiley - Southern Cross University agreement via the Council of Australian University Librarians
Big Scrub Landcare