Biodiversity

Species Profile and Threats Database


For information to assist proponents in referral, environmental assessments and compliance issues, refer to the Policy Statements and Guidelines (where available), the Conservation Advice (where available) or the Listing Advice (where available).
 
In addition, proponents and land managers should refer to the Recovery Plan (where available) or the Conservation Advice (where available) for recovery, mitigation and conservation information.

EPBC Act Listing Status Listed as Critically Endangered
Listing and Conservation Advices Commonwealth Conservation Advice on Hibbertia priceana (a shrub) (Threatened Species Scientific Committee (TSSC), 2009ag) [Conservation Advice].
 
Commonwealth Listing Advice on Hibbertia priceana (a shrub) (Threatened Species Scientific Committee (TSSC), 2009ah) [Listing Advice].
 
Recovery Plan Decision Recovery Plan not required, the approved conservation advice provides sufficient direction to implement priority actions and mitigate against threats (26/05/2009).
 
Adopted/Made Recovery Plans
Federal Register of
    Legislative Instruments
Inclusion of species in the list of threatened species under section 178 of the Environment Protection and Biodiversity Conservation Act 1999 (77) (26/05/2009) (Commonwealth of Australia, 2009k) [Legislative Instrument].
 
State Listing Status
WA: Listed as Endangered (Wildlife Conservation Act 1950 (Western Australia): September 2013 list)
Scientific name Hibbertia priceana [82694]
Family Dilleniaceae:Dilleniales:Magnoliopsida:Magnoliophyta:Plantae
Species author J.R.Wheeler
Infraspecies author  
Reference Wheeler, J.R. (2002) Nuytsia 15(1): 136, figs. 2 (map), 5 [tax. nov.]
Distribution map Species Distribution Map

This is an indicative distribution map of the present distribution of the species based on best available knowledge. See map caveat for more information.

Illustrations Google Images

Scientific name: Hibbertia priceana

The species is conventionally accepted as Hibbertia priceana (Wheeler 2002).

Hibbertia priceana is a dwarf shrub that can grow to 0.15 m in height (Western Australian Herbarium 2006). It is usually compact, but is sometimes sprawling, and typically occurs on sandy clay with laterite gravel. The flowers are yellow, and the flowering period is from June to August (Western Australian Herbarium 2006). Leaves are bluish, grey-tinged and are flat, narrowly oblong-elliptic and not clustered (WA CALM 2006).

Hibbertia priceana is endemic to Western Australia, and is known from four subpopulations approximately 20 km east of the town of Borden, which is approximately 110 km north-east of Albany. The species is located within the South Coast Natural Resource Management Region (TSSC 2009ah).

The extent of occurrence of Hibbertia priceana is estimated to be 17 km² and its area of occupancy is estimated to be less than 1 km² (WA DEC 2008).

The geographic distribution of Hibbertia priceana is highly fragmented and the species occurs within patches of remnant vegetation surrounded by cleared areas. This lack of suitable habitat surrounding the species' known area of occupancy limits the geographic distribution of the species (TSSC 2009ah).

The four subpopulations of Hibbertia priceana do not occur on protected or reserved land, nor are they protected under any conservation covenants with landholders (TSSC 2009ah).

The total population size of the species is approximately 1100 mature plants (WA DEC 2008).

Hibbertia priceana occurs on sandy clay with laterite gravel and occurs primarily on ridges (Western Australian Herbarium 2006).

The species occurs with Banksia pseudoplumosa and Leucopogon sp. Ongerup (TSSC 2009ah).

Little is known about the levels of flower and fruit production, but it is thought the species may recruit more vigorously following disturbance (WA CALM 2006).

Hibbertia priceana is most closely related to Hibbertia depressa and Hibbertia helianthemoides, but differs in its more compact form and its bluish, grey-tinged leaves which are flat, narrowly oblong-elliptic and not clustered (WA CALM 2006).

The main identified threats to Hibbertia priceana are road maintenance works, competition from weeds, stock grazing and trampling and salinity.

Road maintenance
A number of the subpopulations occur on road verges, and are particularly vulnerable to road widening and maintenance works, such as grading and clearing, and soil compaction by vehicle movement (TSSC 2009ah).

Weeds
Weeds can compete with Hibbertia priceana, particularly seedlings, for resources. Weeds suppress early plant growth by competing for soil moisture, nutrients and light. They also increase the fire hazard due to the easy ignition of high fuel loads, which are produced annually by many weed species (TSSC 2009ah).

Grazing
Subpopulations on private property can be under threat from grazing by stock. This can be due to inadequate fencing or instances where stock are given access to sites where they may graze or trample on seedlings (TSSC 2009ah).

Salinity
Salinity may be a potential future threat to the species, particularly where it occupies lower slopes (WA CALM 2006). It has the potential to affect plant growth and degrade soil structure (TSSC 2009ah).

Land clearing
A past threat to Hibbertia priceana is land clearing. The clearing of land for agriculture, primarily for crops, has reduced the amount of suitable habitat for this species (TSSC 2009ah).

Minister's Reasons for Recovery Plan Decision
A recovery plan for this species is not considered to be necessary at this time as the approved conservation advice provides sufficient direction to implement priority actions and mitigate against threats (2009).

The Commonwealth Conservation Advice on Hibbertia priceana (a shrub) (TSSC2009ag) outlines the following research priorities:

  • Design and implement a monitoring program for the species.
  • More precisely assess population size, geographic distribution and ecological requirements, including:
    • factors that trigger or influence germination and recruitment
    • factors that influence the levels of flower and fruit production for the species
    • the species' response to disturbance
    • other relevant mortality and morphological data for the species.
  • Undertake survey work in suitable habitat and potential habitat during the June to August flowering period to locate any additional populations.
  • Undertake seed germination and/or vegetative propagation trials to determine the requirement for successful establishment.

In addition, the Commonwealth Conservation Advice on Hibbertia priceana (a shrub) (TSSC2009ag) outlines the following priority actions:

  • Ensure road widening and maintenance activities, involving substrate or vegetative disturbance in areas where Hibbertia priceana occurs, do not adversely impact on the known subpopulations.
  • Manage any changes to hydrology, particularly where the species occupies lower slopes, that may result in changes to the water table levels, increased run-off or salinity.
  • Monitor the progress of recovery, including the effectiveness of management actions and the need to adapt them if necessary.
  • Investigate formal conservation arrangements, management agreements and covenants on private land, and for crown and private land investigate inclusion in reserve tenure if possible.
  • Identify and remove weeds in the local area, which could become a threat to Hibbertia priceana, using appropriate methods.
  • Ensure chemicals or other mechanisms used to eradicate weeds do not have a significant adverse impact on the species.
  • Manage sites to prevent introduction of invasive weeds, which could become a threat to Hibbertia priceana, using appropriate methods.
  • Where appropriate, manage total grazing pressure at important/significant sites through exclusion fencing or other barriers.
  • Raise awareness of Hibbertia priceana within the local community through site visits, signage (such as Declared Rare Flora markers to help prevent disturbance at sites), and fact sheets/information brochures.
  • Maintain liaison with private landholders and land managers of land on which populations occur.
  • Undertake appropriate seed collection and storage.
  • Investigate options for linking, enhancing or establishing additional populations.
  • Implement national translocation protocols if establishing additional populations is considered necessary and feasible.

The Commonwealth Conservation Advice on Hibbertia priceana (a shrub) (TSSC2009ag) provides a brief biological overview and management recommendations.

The following table lists known and perceived threats to this species. Threats are based on the International Union for Conservation of Nature and Natural Resources (IUCN) threat classification version 1.1.

Threat Class Threatening Species References
Agriculture and Aquaculture:Livestock Farming and Grazing:Grazing pressures and associated habitat changes Commonwealth Conservation Advice on Hibbertia priceana (a shrub) (Threatened Species Scientific Committee (TSSC), 2009ag) [Conservation Advice].
Commonwealth Listing Advice on Hibbertia priceana (a shrub) (Threatened Species Scientific Committee (TSSC), 2009ah) [Listing Advice].
Agriculture and Aquaculture:Livestock Farming and Grazing:Habitat alteration (vegetation, soil, hydrology) due to trampling and grazing by livestock Commonwealth Conservation Advice on Hibbertia priceana (a shrub) (Threatened Species Scientific Committee (TSSC), 2009ag) [Conservation Advice].
Commonwealth Listing Advice on Hibbertia priceana (a shrub) (Threatened Species Scientific Committee (TSSC), 2009ah) [Listing Advice].
Climate Change and Severe Weather:Habitat Shifting and Alteration:Habitat loss, modification and/or degradation Commonwealth Listing Advice on Hibbertia priceana (a shrub) (Threatened Species Scientific Committee (TSSC), 2009ah) [Listing Advice].
Invasive and Other Problematic Species and Genes:Invasive Non-Native/Alien Species:Competition and/or habitat degradation by weeds Commonwealth Conservation Advice on Hibbertia priceana (a shrub) (Threatened Species Scientific Committee (TSSC), 2009ag) [Conservation Advice].
Natural System Modifications:Dams and Water Management/Use:Salinity Commonwealth Listing Advice on Hibbertia priceana (a shrub) (Threatened Species Scientific Committee (TSSC), 2009ah) [Listing Advice].
Natural System Modifications:Other Ecosystem Modifications:Changes in hydrology leading to rising water tables and dryland salinity Commonwealth Conservation Advice on Hibbertia priceana (a shrub) (Threatened Species Scientific Committee (TSSC), 2009ag) [Conservation Advice].
Transportation and Service Corridors:Roads and Railroads:Development and/or maintenance of roads Commonwealth Conservation Advice on Hibbertia priceana (a shrub) (Threatened Species Scientific Committee (TSSC), 2009ag) [Conservation Advice].
Commonwealth Listing Advice on Hibbertia priceana (a shrub) (Threatened Species Scientific Committee (TSSC), 2009ah) [Listing Advice].

Threatened Species Scientific Committee (TSSC) (2009ag). Commonwealth Conservation Advice on Hibbertia priceana (a shrub). [Online]. Department of the Environment, Water, Heritage and the Arts. Available from: http://www.environment.gov.au/biodiversity/threatened/species/pubs/82694-conservation-advice.pdf.

Threatened Species Scientific Committee (TSSC) (2009ah). Commonwealth Listing Advice on Hibbertia priceana (a shrub). [Online]. Department of the Environment, Water, Heritage and the Arts. Available from: http://www.environment.gov.au/biodiversity/threatened/species/pubs/82694-listing-advice.pdf.

Western Australia Department of Conservation and Land Management (WA CALM) (2006). Records held in CALM's Declared Flora Database and rare flora files. Perth, Western Australia: WA CALM.

Western Australia Department of Environment and Conservation (WA DEC) (2008). Records held in DEC's Declared Flora Database and rare flora files. Perth, Western Australia: WA DEC.

Western Australian Herbarium (2006). Florabase - The Western Australian Flora. [Online]. Perth, Western Australia: Department of Conservation and Land Management. Available from: http://florabase.calm.wa.gov.au/.

Wheeler, J.R. (2002). A revision of Hibbertia depressa and its allies (Dilleniaceae) from Western Australia. Nuytsia. 15:136-138.

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This database is designed to provide statutory, biological and ecological information on species and ecological communities, migratory species, marine species, and species and species products subject to international trade and commercial use protected under the Environment Protection and Biodiversity Conservation Act 1999 (the EPBC Act). It has been compiled from a range of sources including listing advice, recovery plans, published literature and individual experts. While reasonable efforts have been made to ensure the accuracy of the information, no guarantee is given, nor responsibility taken, by the Commonwealth for its accuracy, currency or completeness. The Commonwealth does not accept any responsibility for any loss or damage that may be occasioned directly or indirectly through the use of, or reliance on, the information contained in this database. The information contained in this database does not necessarily represent the views of the Commonwealth. This database is not intended to be a complete source of information on the matters it deals with. Individuals and organisations should consider all the available information, including that available from other sources, in deciding whether there is a need to make a referral or apply for a permit or exemption under the EPBC Act.

Citation: Department of the Environment (2014). Hibbertia priceana in Species Profile and Threats Database, Department of the Environment, Canberra. Available from: http://www.environment.gov.au/sprat. Accessed Fri, 25 Jul 2014 00:06:27 +1000.