Micranthocereus auriazureus 

Scope:Global
Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_offStatus_en_onStatus_cr_offStatus_ew_offStatus_ex_off

Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Magnoliopsida Caryophyllales Cactaceae

Scientific Name: Micranthocereus auriazureus
Species Authority: Buining & Brederoo
Taxonomic Source(s): Hunt, D., Taylor, N. and Charles, G. (compilers and editors). 2006. The New Cactus Lexicon. dh Books, Milborne Port, UK.

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(iii) ver 3.1
Year Published: 2013
Date Assessed: 2010-06-03
Assessor(s): Taylor, N.P., Machado, M., Braun, P. & Zappi, D.
Reviewer(s): Goettsch, B.K.
Facilitator/Compiler(s): Hilton-Taylor, C.
Justification:
Micranthocereus auriazureus is listed as Endangered due to its very restricted distribution, the extent of occurrence below the threshold for this category and the species has less than five locations. Although more than half of the population is within a protected area, the quality of habitat for the species outside is continuously declining due to fires, deforestation, forest plantations and agriculture.
Previously published Red List assessments:
2002 Endangered (EN)

Geographic Range [top]

Range Description:Micranthocereus auriazureus is native from Grao Mogol Cristalia and the northernmost part of Botumirim, northern Minas Gerais. It is endemic to the core area within Minas Gerais. It grows at elevations of 750-1,000 m asl.
Countries occurrence:
Native:
Brazil (Minas Gerais)
Number of Locations:4
Lower elevation limit (metres):750
Upper elevation limit (metres):1000
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This species has a very restricted range but is locally abundant.
Current Population Trend:Decreasing
Additional data:

Habitat and Ecology [top]

Habitat and Ecology:This cactus is an element of south-eastern campo rupestre (GrĂ£o Mogol, Cristalia and Botumirim), where it grows between crystalline rocks and in quartz gravel (Taylor and Zappi 2004).
Systems:Terrestrial
Continuing decline in area, extent and/or quality of habitat:Yes
Generation Length (years):10-15

Use and Trade [top]

Use and Trade: This plant is not utilised.

Threats [top]

Major Threat(s): Micranthocereus auriazureus is mainly affected by deforestation for charcoal production, conversion of the habitat into agricultural land or Eucalyptus plantations and man-made fires are the main threats to the species.

Conservation Actions [top]

Conservation Actions: Part of the population of this cactus species occurs in a protected area, Parque Estadual de Grao Mogol.

Classifications [top]

2. Savanna -> 2.1. Savanna - Dry
suitability: Suitable  
0. Root -> 6. Rocky areas (eg. inland cliffs, mountain peaks)
suitability: Suitable  

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
  Occur in at least one PA:Yes
  Percentage of population protected by PAs (0-100):50-60
In-Place Species Management
In-Place Education
  Included in international legislation:Yes
  Subject to any international management/trade controls:Yes
2. Agriculture & aquaculture -> 2.1. Annual & perennial non-timber crops -> 2.1.2. Small-holder farming
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

2. Agriculture & aquaculture -> 2.1. Annual & perennial non-timber crops -> 2.1.3. Agro-industry farming
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

2. Agriculture & aquaculture -> 2.2. Wood & pulp plantations -> 2.2.2. Agro-industry plantations
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

5. Biological resource use -> 5.3. Logging & wood harvesting -> 5.3.3. Unintentional effects: (subsistence/small scale)
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

7. Natural system modifications -> 7.1. Fire & fire suppression -> 7.1.1. Increase in fire frequency/intensity
♦ timing: Ongoing    
→ Stresses
  • 2. Species Stresses -> 2.1. Species mortality

Bibliography [top]

IUCN. 2013. IUCN Red List of Threatened Species (ver. 2013.1). Available at: http://www.iucnredlist.org. (Accessed: 12 June 2013).

Taylor, N.P. and Zappi, D.C. 2004. Cacti of Eastern Brazil. Royal Botanic Gardens, Kew.


Citation: Taylor, N.P., Machado, M., Braun, P. & Zappi, D. 2013. Micranthocereus auriazureus. In: The IUCN Red List of Threatened Species 2013: e.T40906A2942367. . Downloaded on 27 June 2016.
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