Arthrocereus melanurus 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Magnoliopsida Caryophyllales Cactaceae

Scientific Name: Arthrocereus melanurus (K.Schum.) L.Diers, P.J.Braun & Esteves
Cereus melanurus K.Schum.
Taxonomic Source(s): Hunt, D., Taylor, N. and Charles, G. (compilers and editors). 2006. The New Cactus Lexicon. dh Books, Milborne Port, UK.
Taxonomic Notes: Three subspecies are recognized, the nominate, subsp. magnus  N.P.Taylor & Zappi and subsp. odorus (F.Ritter) N.P.Taylor & Zappi. All the subspecies were previously assessed in 2002, but as they have not been reassessed they are now excluded. Subspecies magnus was listed as NT and the other two as VU.

Assessment Information [top]

Red List Category & Criteria: Vulnerable B2ab(iii) ver 3.1
Year Published: 2017
Date Assessed: 2010-08-09
Assessor(s): Taylor, N.P. & Braun, P.
Reviewer(s): Superina, M., Goettsch, B.K. & Chanson, J.S.
Facilitator/Compiler(s): Goettsch, B.K.
Arthrocereus melanurus has a large extent of occurrence (EOO ca 75,000 km2). However, based on expert opinion the species area of occupancy is certainly less than 500 km2. The population has a continuing decline and is under threat by mining activities, urbanization and agriculture, severely fragmented, not abundant, and only one subpopulation is protected. Hence, the species is listed as Vulnerable.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species is endemic to Brazil, where it occurs in central, southern and south-western Minas Gerais, at elevations of 700 to 1,700 m asl.
Countries occurrence:
Brazil (Minas Gerais)
Additional data:
Estimated area of occupancy (AOO) - km2:1999
Number of Locations:2
Lower elevation limit (metres):700
Upper elevation limit (metres):1700
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:Most of the subpopulations have numbers in the order of tens of individuals, with one exception that consists of hundreds of individuals. The latter is the only subpopulation occurring within a protected area.
Current Population Trend:Decreasing
Additional data:
Population severely fragmented:Yes

Habitat and Ecology [top]

Habitat and Ecology:This is a south-eastern campo rupestre element. It grows in sandy, gravelly and rocky places in campo rupestre. The species also occurs in cerrado.
Continuing decline in area, extent and/or quality of habitat:Yes

Use and Trade [top]

Use and Trade: There is no known use or trade of this species.

Threats [top]

Major Threat(s): The major threats are mining for tin, urbanization and agriculture.

Conservation Actions [top]

Conservation Actions: The largest population occurs within Parque Estadual de Ibitipoca.

Amended [top]

Amended reason: The species distribution map has been included.

Citation: Taylor, N.P. & Braun, P. 2017. Arthrocereus melanurus (amended version of 2013 assessment). The IUCN Red List of Threatened Species 2017: e.T40934A121437273. . Downloaded on 23 June 2018.
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