Acacia bynoeana (a shrub) - endangered species listing
The Scientific Committee, established by the Threatened Species Conservation Act, has made a Final Determination to list the shrub Acacia bynoeana Benth. as an ENDANGERED SPECIES on Part 1 of Schedule 1 of the Threatened Species Conservation Act and as a consequence to omit reference to that species as a VULNERABLE SPECIES on Schedule 2 of the Act. Listing is provided for by Part 2 of the Act.
NSW Scientific Committee - final determination
The Scientific Committee has found that:
1. Acacia bynoeana Benth. (Family Fabaceae) has been described (Flora of New South Wales, Vol 2, Harden 1991) as: Erect or spreading shrub, 0.2-1m high; branchlets more or less terete, more or less hairy. Phyllodes rigid, straight or subfalcate, 1-4 cm long, 1-2 mm wide, 3 longitudinal veins prominent, apex pungent-pointed; glands absent or 1 gland at base; pulvinus
2. The species is currently known from about 30 locations. The size of populations where known is very small (1-5 plants) with only a few sites with 30-50 individuals.
3. Most of the known sites are not reserved, although populations are known from several reserves including Marramarra National Park, Castlereagh Nature Reserve, Lake Macquarie SRA, Blue Mountains National Park. Recent vegetation surveys in Royal National Park have not located the species. The species was also known from one site within Ku-ring-gai Chase National Park, but several subsequent searches of the site have failed to find any plants.
4. The main threats to A. bynoeanaare habitat disturbance (including road, trail and powerline maintenance, recreational vehicle use), clearing, weed invasion and too frequent fire. Due to the fragmented nature of the populations, their small size, fire mitigation activities and the proximity of urbanisation, the species is susceptible to catastrophic events and localised extinction.
5. In view of 2, 3 & 4 above the Scientific Committee is of the opinion that the species is likely to become extinct in nature in NSW unless the circumstances and factors threatening its survival or evolutionary development cease to operate.
Proposed Gazettal date: 17/9/99
Exhibition period: 17/9/99 - 22/10/99