Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Magnoliopsida Caryophyllales Cactaceae

Scientific Name: Rhipsalis russellii
Species Authority: Britton & Rose
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: Vulnerable B2ab(ii,iii,iv,v) ver 3.1
Year Published: 2013
Date Assessed: 2010-06-03
Assessor(s): Taylor, N.P. & Zappi, D.
Reviewer(s): Superina, M., Goettsch, B.K. & Chanson, J.S.
Facilitator/Compiler(s): Hilton-Taylor, C.
The range of Rhipsalis russellii is markedly disjunct. Its habitat has severely contracted, especially in southeastern Bahia, where the most recent collection was obtained in 1971. Elsewhere, it is found within some reasonably secure protected areas, such as Parque Nacional Chapada Diamantina in Bahia, but its ecological niches are invariably limited. The area of occupancy is estimated to be less than 2,000 km², the range is severely fragmented, and there is continuing decline in area of occupancy, number of locations and subpopulations, and loss of mature individuals. This cactus therefore qualifies for listing as Vulnerable under criterion B2.
Previously published Red List assessments:
2002 Vulnerable (VU)

Geographic Range [top]

Range Description: This species can be found from the Chapada Diamantina and Serra do Espinhaço eastwards in Bahia, Minas Gerais and Espírito Santo, as well as in central-western (Goiás, Mato Grosso, Mato Grosso do Sul and Paraná) and southeastern Brazil (São Paulo). It has also been recorded from eastern Paraguay. It grows at altitudes from 50 to 1,050 m asl.
Countries occurrence:
Brazil (Bahia, Espírito Santo, Mato Grosso, Mato Grosso do Sul, Minas Gerais, Paraná, São Paulo); Paraguay
Estimated area of occupancy (AOO) - km2: 500-1999
Continuing decline in area of occupancy (AOO): Yes
Estimated extent of occurrence (EOO) - km2:
Continuing decline in number of locations: Yes
Lower elevation limit (metres): 50
Upper elevation limit (metres): 1050
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: The populations tend to be very small and highly scattered, and the species is certainly declining due to habitat loss.
Current Population Trend: Decreasing
Additional data:
Continuing decline of mature individuals: Yes
Extreme fluctuations: No Population severely fragmented: Yes
Continuing decline in subpopulations: Yes

Habitat and Ecology [top]

Habitat and Ecology: This is a widespread humid forest/campo rupestre element: it grows epilithic or epiphytic in campo rupestre, mata de brejo and mata atlântica and their ecotones with caatinga-agreste. It occurs mostly in hot places.
Systems: Terrestrial
Continuing decline in area, extent and/or quality of habitat: Yes

Use and Trade [top]

Use and Trade: The species is not utilized.

Threats [top]

Major Threat(s): There has been extensive habitat loss, especially in Bahia, due to expanding agriculture and urbanization and logging of the forests.

Conservation Actions [top]

Conservation Actions: This cactus is listed on CITES Appendix II. It occurs in some protected areas, e.g.  Parque Nacional Chapada Diamantina and Parque Estadual do Ibitipoca.

Citation: Taylor, N.P. & Zappi, D. 2013. Rhipsalis russellii. The IUCN Red List of Threatened Species 2013: e.T40862A2937952. . Downloaded on 09 October 2015.
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