Pinnate-leaved Eremophila (Eremophila pinnatifida ms) Interim Recovery Plan 2002-2007

Interim recovery plan no. 124
>Gillian Stack and Andrew Brown
Department of Conservation and Land Management, WA, 2003

Summary

Scientific Name: Eremophila pinnatifida Common Name: Pinnate-leaved Eremophila
Family: Myoporaceae Flowering Period: September - late January
Dept Region: Wheatbelt Dept District: Merredin
Shire: Dalwallinu Recovery Team: Merredin Threatened Flora Recovery Team (MDTFRT)

Illustrations and/or further information: A. Brown, C. Thomson-Dans and N. Marchant (Eds) (1998) Western Australia's Threatened Flora

Current status: Eremophila pinnatifida ms was Declared as Rare Flora in November 1997, and ranked as Critically Endangered (CR) in November 1998. It currently meets World Conservation Union (IUCN, 2000) Red List Category 'CR' under criteria B1ab(iii)+2ab(iii) due to the severe fragmentation of populations and continuing decline in the quality of its habitat. The main threats are housing development, road maintenance, erosion, weeds, degraded habitat and inappropriate fire regimes.

Critical habitat: The critical habitat for Eremophila pinnatifida ms comprises the area of occupancy of the known populations; similar habitat within 200 metres of known populations; remnant vegetation that links populations and additional nearby occurrences of similar habitat that do not currently contain the species but may have done so and may be suitable for translocations.

Habitat critical to the survival of the species, and important populations: Given that this species is listed as Critically Endangered it is considered that all known habitat for wild and translocated populations is habitat critical.

Benefits to other species/ecological communities: There are no ecological communities or other threatened species in the immediate vicinity of Eremophila pinnatifida ms. However, recovery actions implemented to improve the quality or security of the habitat of the species, such as weed control and rehabilitation, will benefit the habitat in which it occurs.

International Obligations: This plan is fully consistent with the aims and recommendations of the Convention on Biological Diversity, ratified by Australia in June 1993, and will assist in implementing Australia's responsibilities under that Convention. However, as Eremophila pinnatifida ms is not listed under any international agreement, the implementation of other international environmental responsibilities is not affected by this plan.

Role and interests of indigenous people: There are no known indigenous communities interested or involved in the management of areas affected by this plan. Therefore no role has been identified for indigenous communities in the recovery of this species.

Social and economic impacts: The implementation of this recovery plan is unlikely to cause significant adverse social and economic impacts. One population of Eremophila pinnatifida ms occurs in an area of Shire land that had been set aside for possible future housing development However, negotiations between relevant parties have ensured that the area directly supporting this species will be set aside as Public Open Space, and subsequently vested in the Conservation Commission for the purpose of Conservation.

Evaluation of the Plans Performance: The Department of Conservation and Land Management, in conjunction with the Recovery Team will evaluate the performance of this IRP. In addition to annual reporting on progress with listed actions and comparison against the criteria for success and failure, the plan is to be reviewed within five years of its implementation.

Habitat requirements: E. pinnatifida ms occurs in tall open Eucalyptus salmonophloia and E. loxophleba woodland over sparse mixed shrubland of Santalum acuminatum, Eremophila drummondii and Acacia species over mixed chenopods and perennial grass on brown clay loams. Plants occur in highly disturbed situations on road verges and on a Shire Reserve. E. pinnatifida ms is endemic to the Dalwallinu area of Western Australia.

Existing Recovery Actions: The following recovery actions have been or are currently being implemented -

  • Land managers have been made aware of the location and threatened status of the species.
  • Declared Rare Flora markers have been installed at Populations 2 and 3.
  • Approximately 1300 seeds from Populations 1a and 3 are stored in the Department's Threatened Flora Seed Centre.
  • The Botanic Garden and Parks Authority (BGPA) currently hold 13 living plants of E. pinnatifida ms from five clones.
  • BGPA also hold several clones as tissue cultured material.
  • Weed control has commenced at Populations 1 and 2.
  • Roadwork completed near Population 2 without damage.
  • Assessment of erosion at Population 3.
  • An information sheet describing and illustrating this species has been produced.
  • Staff from the Department's Merredin District regularly monitor populations of the species.
  • The Merredin District Threatened Flora Recovery Team is overseeing the implementation of this IRP and will include information on progress in an annual report to the Department's Corporate Executive and funding bodies.

IRP Objective: The objective of this Interim Recovery Plan is to abate identified threats and maintain or enhance in situ populations to ensure the long-term preservation of the species in the wild.

Recovery criteria
Criteria for success: The number of individuals within populations and/or the number of populations have increased by 10% or more.
Criteria for failure: The number of individuals within populations and/or the number of populations have decreased by 10% or more.

Recovery actions
1. Coordinate recovery actions 8. Monitor populations
2. Undertake weed control 9. Develop and implement a fire management strategy
3. Stimulate germination of soil-stored seed 10. Obtain biological and ecological information
4. Achieve long-term protection of habitat 11. Start translocation process
5. Establish nature reserve 12. Promote awareness
6. Collect seed and cutting material 13. Review the need for a full Recovery Plan
7. Conduct further surveys