National recovery plan for the Christmas Island Spleenwort Asplenium listeri
Prepared by Mark Butz
Futures by Design
Department of the Environment and Heritage, 2004
ISBN 0 642 55049 2
Part E: Management practices
All occurrences of Asplenium listeri are considered to be important populations, and their environs are considered to be habitat critical to their survival. Because the numbers are so low and the range so restricted, any impact on any population of the species may be significant.
A significant impact on a critically endangered or endangered species may arise from:
- reducing the size of, or fragmenting, a population of the species
- reducing the area occupied by the species
- adversely affecting or decreasing availability or quality of habitat critical to survival of the species
- introducing invasive species that compete with, modify habitat for, or prey on, the species.
Any proposed development or maintenance activity in the vicinity of a known occurrence of Asplenium listeri or in an area identified as potential habitat needs to be preceded by:
- survey for the species; and
- (wherever it is found) comprehensive documentation of the population and site factors; and
- detailed attention to measures to avoid or mitigate impact on any population.
Specific attention needs to be paid to proposed developments and maintenance activities in areas of known or potential habitat on or near the tops of inland cliffs that may increase vulnerability of the species to:
- modification of habitat by mining or excavation, construction, clearing of native vegetation; or
- weed invasion, or exotic fauna; or
- dust deposition; or
- human traffic; or
- unauthorised collecting.
Mapping for EPBC public enquiry purposes needs to remain coarse, with at least a 1 kilometre buffer around known localities. If predictive models are developed, potential habitat should be mapped in a similar fashion for public enquiry.
Before you download
Some documents are available as PDF files. You will need a PDF reader to view PDF files.
List of PDF readers
If you are unable to access a publication, please contact us to organise a suitable alternative format.
Key
Links to another web site
Opens a pop-up window