Journal article
Demographic structure, genetic diversity and habitat distribution of the endangered, Australian rainforest tree Macadamia jansenii help facilitate an introduction program
Australian Journal of Botany, Vol.59(3), pp.215-225
2011
Abstract
Macadamia jansenii is endemic to southeast Queensland, Australia and is currently known from a single population 180km north of the nearest wild population of its congener, the edible Macadamia integrifolia. A recently developed Macadamia recovery plan identified that this population was under significant threat and recommended a reintroduction program to safeguard against chance extinction of the single wild population. This study undertook demographic population census surveys, genetic analysis, habitat analysis and niche modelling to determine the potential long term viability for the species, and to guide search and reintroduction programs. We expanded the known population size of the species to approximately 60 individuals (1m and taller) spread over a 900m distance along a single creek clumped into three subpopulations. There was moderate genetic diversity in the species and the subpopulations showed little genetic differentiation. We developed a potential habitat model combining abiotic variables and vegetation associations, and mapped areas of potentially suitable habitat for M. jansenii within its local area. These maps are being used to target searches for other populations and to guide the location of introduction populations.
Details
- Title
- Demographic structure, genetic diversity and habitat distribution of the endangered, Australian rainforest tree Macadamia jansenii help facilitate an introduction program
- Authors
- Alison Shapcott (Author) - University of the Sunshine Coast - Faculty of Science, Health and EducationMichael A Powell (Author) - University of the Sunshine Coast - Faculty of Science, Health and Education
- Publication details
- Australian Journal of Botany, Vol.59(3), pp.215-225
- Publisher
- C S I R O Publishing
- Date published
- 2011
- DOI
- 10.1071/BT10132
- ISSN
- 0067-1924
- Organisation Unit
- Faculty of Science, Health, Education and Engineering; School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering; Centre for Bioinnovation
- Language
- English
- Record Identifier
- 99449492602621
- Output Type
- Journal article
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