Micranthocereus streckeri

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Taxonomy [top]

Kingdom Phylum Class Order Family
PLANTAE TRACHEOPHYTA MAGNOLIOPSIDA CARYOPHYLLALES CACTACEAE

Scientific Name: Micranthocereus streckeri
Species Authority: Van Heek & Van Criek.

Assessment Information [top]

Red List Category & Criteria: Critically Endangered B1ab(iii) ver 3.1
Year Published: 2013
Date Assessed: 2010-06-03
Assessor(s): Machado, M., Braun, P., Taylor, N.P. & Zappi, D.
Reviewer(s): Goettsch, B.K. & Superina, M.
Facilitator/Compiler(s): Bilz, M.
Justification:
Micranthocereus streckeri has a very restricted range. It is known from a single location in Bahia, Brazil, where its total extent of occurrence is no more than 100 km2. The population is declining due to factors that are known, but have not ceased. The species is therefore listed as Critically Endangered.
History:
2002 Critically Endangered

Geographic Range [top]

Range Description:Micranthocereus steckeri is restricted to the west of Seabra in central Bahia, Brazil. It is only known from one site, where it grows at elevations of 800 to 1,250 m asl.
Countries:
Native:
Brazil (Bahia)
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population: The number of mature individuals is between 250 and 1,000, with all individuals in one subpopulation. The population trend is slightly decreasing due to deforestation, fire, and recreational activities.
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: The species is a northern campo rupestre element, where it grows on rocks and quartz gravel and sand (Taylor and Zappi 2004). It has a generation length of 10 to 15 years.
Systems: Terrestrial

Use and Trade [top]

Use and Trade: The seeds are collected for ornamental use.

Threats [top]

Major Threat(s): The habitat of this cactus is being altered, as it is above a main highway (Taylor and Zappi 2004). There is a religious site within the species' range, and the species is negatively affected by the people frequenting the site as well as by clearing of vegetation for improved access. Logging and fires are additional threats in the area, while collection of plants and seeds is considered to be a minor threat.

Conservation Actions [top]

Conservation Actions: The species is not protected in any way. The site where it grows is used for religious pilgrimage, and a complete habitat conversion might therefore be unlikely. It is recommended to protect this site and to monitor the populations.

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: Machado, M., Braun, P., Taylor, N.P. & Zappi, D. 2013. Micranthocereus streckeri. In: The IUCN Red List of Threatened Species. Version 2014.3. <www.iucnredlist.org>. Downloaded on 21 December 2014.
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