C.2 Identification of threatsC.2 Identification of threats

C.2 Identification of threats

Potential threatening processes for Asplenium listeri include:

• removal or modification of actual or potential habitat by phosphate mining or by construction of roads or other developments
• weed invasion arising from rehabilitation of mined areas or from construction
• predation by exotic species or changes in native species composition arising from activity of exotic species
• human traffic
• unauthorised collecting of specimens
• stochastic disturbance events e.g. cyclones, severe dry seasons
• fire.

The factors that have led to the limited occurrence and loss of locations for the species are not clear. At the time of initial listing, stochastic events were presumed to be significant (TSSC 2002).