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Australian Journal of Botany Australian Journal of Botany Society
Southern hemisphere botanical ecosystems
RESEARCH ARTICLE

Biological survey and setting priorities for flora conservation in Western Australia

Greg J. Keighery A , Neil Gibson A , Stephen van Leeuwen A , Michael N. Lyons A C and Sue Patrick B
+ Author Affiliations
- Author Affiliations

A Science Division, Western Australian Department of Environment and Conservation, PO Box 51, Wanneroo, WA 6946, Australia.

B Science Division, Western Australian Department of Environment and Conservation, Locked Bag 104, WA 6983, Australia.

C Corresponding author. Email: Mike.Lyons@dec.wa.gov.au

Australian Journal of Botany 55(3) 308-315 https://doi.org/10.1071/BT06102
Submitted: 24 May 2006  Accepted: 5 February 2007   Published: 18 May 2007

Abstract

Biological survey has been an integral component of conservation planning in Western Australia for >30 years, providing baseline data for reserve selection and the management of biodiversity at the genetic, species and community levels. Flora surveys are particularly important, given the diverse and poorly documented nature of the state’s vascular flora. Surveys have been conducted at the following four scales: regional, subregional, local and individual species. At all scales, flora surveys have provided detail on individual taxon distribution, have identified previously unknown or unrecognised taxa, have located presumed extinct taxa and have substantially contributed to information on the distribution of threatened flora. Regional-scale surveys normally involve multidisciplinary teams studying a broad selection of the biota. These combined plot-based data are used to develop a ‘classify-then-model’ approach to assessment of comprehensiveness, adequacy and representativeness of the regional conservation reserve system. These regional models describe the broad-scale patterning of common taxa but their utility in reflecting patterns in naturally rare or highly restricted taxa is uncertain. Results from recent surveys show poor correlations between floristic patterning and other components of the biota.


Acknowledgements

Grant Wardell-Johnson provided data for the Tingle Mosaic and Natalia Huang prepared the map. We also acknowledge assistance from many taxonomists across Australia and thank the numerous volunteers who have helped in flora surveys over the last 20 years.


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