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Macrozamia occidua 

Scope: Global
Language: English
Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_onStatus_en_offStatus_cr_offStatus_ew_offStatus_ex_off

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Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Cycadopsida Cycadales Zamiaceae

Scientific Name: Macrozamia occidua D.L.Jones & P.I.Forst

Assessment Information [top]

Red List Category & Criteria: Vulnerable D2 ver 3.1
Year Published: 2010
Date Assessed: 2009-10-31
Assessor(s): Forster, P.
Reviewer(s): Donaldson, J.S. & Bösenberg, J.D.
Justification:
This species is assessed as Vulnerable (VU) under criterion D2 because it has a very small area of occupancy (the extent of occurrence is only 10 km²) and it is only known from three locations. If there was any evidence of decline, the species would qualify as Endangered under criterion B1+2. Based on the lower population size estimate , the species comes very close to qualifying for listing as VU under criterion D1.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species occurs in southern Queensland, Australia, where it is known from only three subpopulations in Sundown National Park and nearby. Recorded from 800 up to 1,000 m asl.
Countries occurrence:
Native:
Australia (Queensland)
Additional data:
Number of Locations:3
Lower elevation limit (metres):800
Upper elevation limit (metres):1000
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This species is known from only two to three subpopulations, comprising in total between 1,000 and 2,500 mature individuals.
Current Population Trend:Stable
Additional data:
Number of mature individuals:1000-2500
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:This species grows in open eucalypt forest in sandy soil derived from acid-intermediate volcanics of greywacke and mudstone.
Systems:Terrestrial
Generation Length (years):60

Threats [top]

Major Threat(s): Poaching of plants has occurred.

Conservation Actions [top]

Conservation Actions: This species is listed on Appendix II of the CITES Appendices. Most of the plants are protected in the Sundown National Park.

Classifications [top]

1. Forest -> 1.4. Forest - Temperate
suitability:Suitable  
1. Forest -> 1.5. Forest - Subtropical/Tropical Dry
suitability:Suitable  
3. Species management -> 3.4. Ex-situ conservation -> 3.4.1. Captive breeding/artificial propagation
4. Education & awareness -> 4.3. Awareness & communications

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
  Occur in at least one PA:Yes
In-Place Species Management
In-Place Education
  Included in international legislation:Yes
  Subject to any international management/trade controls:Yes
5. Biological resource use -> 5.2. Gathering terrestrial plants -> 5.2.1. Intentional use (species is the target)
♦ timing:Ongoing    
→ Stresses
  • 2. Species Stresses -> 2.1. Species mortality

1. Research -> 1.2. Population size, distribution & trends
1. Research -> 1.6. Actions

♦  Pets/display animals, horticulture
 National : ✓  International : ✓ 

Bibliography [top]

Donaldson, J.S. (ed.). 2003. Cycads. Status Survey and Conservation Action Plan. IUCN/SSC Cycad Specialist Group. IUCN, Gland, Switzerland and Cambridge, UK.

Hill, K.D. and Stevenson, D.W. 1998-2006. The Cycad Pages. Available at: http://plantnet.rbgsyd.gov.au/PlantNet/cycad/.

IUCN. 2010. IUCN Red List of Threatened Species (ver. 2010.3). Available at: http://www.iucnredlist.org. (Accessed: 2 September 2010).

Jones, D.L. 1993. Cycads of the World. Reed, New Holland, Frenchs Forest, N.S.W., Australia.

Whitelock, L.M. 2002. The Cycads. Timber Press, Portland, Oregon.


Citation: Forster, P. 2010. Macrozamia occidua. The IUCN Red List of Threatened Species 2010: e.T41965A10612078. . Downloaded on 19 September 2018.
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