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Macrozamia crassifolia 

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 crassifolia P.I.Forst. & D.L.Jones

Assessment Information [top]

Red List Category & Criteria: Vulnerable B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v) ver 3.1
Year Published: 2010
Date Assessed: 2009-10-31
Assessor(s): Forster, P.
Reviewer(s): Donaldson, J.S.; Bösenberg, J.D.
Justification:
Locally common but qualifies as Vulnerable based on relatively small extent of occurrence ( mapped as 160 km²) and occurrence at no more than ten locations. There has been an estimated population decline of 10-20% over the last fifty years.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species occurs in two small disjunct areas in the vicinity of Eidsvold and Mundubbera in Queensland, Australia. Found at 340 to 420 m asl.
Countries occurrence:
Native:
Australia (Queensland)
Additional data:
Number of Locations:10
Lower elevation limit (metres):340
Upper elevation limit (metres):420
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This species is locally common, with strong seedling recruitment. There are at least ten subpopulations.
Current Population Trend:Decreasing
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:This species grows among granite boulders on rugged slopes with open eucalypt forest which has a sparse under-storey.
Systems:Terrestrial
Generation Length (years):60

Threats [top]

Major Threat(s): All plants are on private land and occur within two restricted areas. The reasons for the decline are not known.

Conservation Actions [top]

Conservation Actions: This species is listed on Appendix II of the CITES Appendices.

Classifications [top]

1. Forest -> 1.4. Forest - Temperate
suitability:Suitable  
2. Savanna -> 2.1. Savanna - Dry
suitability:Marginal  
1. Land/water protection -> 1.1. Site/area protection
4. Education & awareness -> 4.3. Awareness & communications

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
In-Place Species Management
In-Place Education
  Included in international legislation:Yes
  Subject to any international management/trade controls:Yes
1. Research -> 1.2. Population size, distribution & trends
1. Research -> 1.6. Actions

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.

Forster, P. 2007. E-mail.

Hill, K. and Osborne, R. 2001. Cycads of Australia.

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.

Jones, D.L. and Forster, P.I. 1994. Seven new species of Macrozamia section Parazamia (Miq.) Miq. (Zamiaceae section Parazamia) from Queensland. Austrobaileya 4(2): 269-288.

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


Citation: Forster, P. 2010. Macrozamia crassifolia. The IUCN Red List of Threatened Species 2010: e.T41962A10585795. . Downloaded on 24 September 2018.
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