NSW National Parks and Wildlife Service, September 2001
ISBN 0 731 36281 0
Grevillea obtusiflora subsp. obtusiflora and subsp. fecunda are two attractive red-flowering Grevilleas with similar morphology but different ecological strategies, one of which reproduces primarily by vegetative means and the other by both vegetative and sexual means. The taxa are found in the Cudgegong and Capertee valleys north of Lithgow.
The main threats to Grevillea obtusiflora (the collective term for both subspecies) are vehicular access, inappropriate fire regimes and roadside management activities.
The Threatened Species Conservation Act 1995 is NSW's legislative framework to protect and encourage the recovery of threatened species, populations and communities. Under the TSC Act, the Director-General of National Parks and Wildlife has certain responsibilities including the preparation of recovery plans for threatened species, populations and ecological communities. This Recovery Plan considers the requirements of Grevillea obtusiflora and outlines management actions to be taken for the conservation of the taxon. Grevillea obtusiflora is also listed nationally as an endangered species pursuant to the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act).
Preparation of plan
This Recovery Plan has been prepared with the assistance of a recovery team, a non-statutory group of interested parties with relevant expertise, established to discuss and resolve issues relating to the plan. Components within the plan do not necessarily represent the views nor the official positions of all the individuals or agencies represented on the recovery team.
The plan will be reviewed and updated five years from the date of publication.
Implementation of plan
The TSC Act requires that a government agency must not undertake actions inconsistent with a recovery plan. The government agencies relevant to this plan are the NPWS and State Forests of NSW. Consequently, the NPWS and State Forests of NSW must, as the government agencies responsible for Grevillea obtusiflora, manage the taxon and it's habitat in accordance with this recovery plan.
The overall objective of this recovery plan is to stabilise G. obtusiflora's status as an endangered taxon pursuant to the provisions of the TSC Act. Recovery relates specifically to the prevention of the decline in the number of sub-populations and individuals of G. obtusiflora extant in the wild, by protecting sub-populations from threats.
Overall Performance Criteria
The overall performance criteria of the recovery plan is that the number of sub-populations and individuals of G. obtusiflora subsp. obtusiflora and subsp. fecunda extant in the wild does not decrease over the five years of plan operation.
Estimated cost of recovery
NPWS: National Parks and Wildlife Service
SF: State Forests of NSW
RSC: Rylstone Shire Council
|11.2||Survey and Monitoring||$9250|
Conservation of G. obtusiflora also conserves the habitat of the rare plant Persoonia marginata and the plant communities and habitats associated with these rare taxa.
Through awareness of G. obtusiflora the profile of all threatened taxa is raised in the general community. This in turn leads to greater opportunities for the conservation of threatened taxa and increased protection of biodiversity.
G. obtusiflora subsp. obtusiflora is a clonal plant that is not known to produce seed. Research into this plant will assist in accumulating knowledge of the ecology of clonal plants and their mechanisms for reproduction. The conservation and study of G. obtusiflora subsp. obtusiflora will also benefit other species that share the same habitat.
Grevillea obtusiflora subsp. fecunda is an attractive plant that produces a profuse number of flowers. Research into these taxa provides a very useful comparison to assist our understanding of reproduction in Grevillea.