Nepenthes aristolochioides 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Magnoliopsida Nepenthales Nepenthaceae

Scientific Name: Nepenthes aristolochioides M.Jebb & M.Cheek
Taxonomic Source(s): Jebb, M. and Cheek, M. 1997. A skeletal revision of Nepenthes (Nepenthaceae). Blumea 42(1): 1-106.

Assessment Information [top]

Red List Category & Criteria: Critically Endangered A2a; B1ab(v); C2a(i) ver 3.1
Year Published: 2013
Date Assessed: 2013-06-10
Assessor(s): Clarke, C.M.
Reviewer(s): Cantley, R.
Contributor(s): Sarunday, C., Akriadi, P., Hernawati, N. & Holden, J.
Based on the most recent and thorough observations of this species in its natural habitat, it is possible to conclude that Nepenthes aristolochioides is among the rarest and most threatened of all Nepenthes species. Fortunately, all subpopulations lie within Kerinci Seblat National Park in Jambi, and local naturalists are aware of this species' rarity and threatened status. Local scientists and naturalists who work in the region regularly observe several of the known subpopulations, as well as checking other areas for new subpopulations. Despite very extensive surveys of the Mount Kerinci - Mount Tujuh area, this species has proved to be very rare, despite the existence of large areas of apparently suitable habitat. The striking shape of the pitchers of N. aristolochioides make it a high-profile target for enthusiasts, and in the late 1990s or early 2000s a substantial number of plants were removed from the largest subpopulation by collectors. Although the rate of collection of wild plants has slowed in recent years, this threat has not been removed and due to the very small population size, even the collection of small numbers of wild plants has the potential to cause a significant drop in the population size. This, coupled with its very small geographical range, means that N. aristolochioides is Critically Endangered in the wild.
Previously published Red List assessments:

Geographic Range [top]

Range Description:N. aristolochioides has only been recorded from a very small geographic area in Jambi Province, Sumatra, Indonesia. It is known to occur on two mountains, Mount Kerinci and Mount Tujuh at altitudes between 2,000 and 2,400 m above sea level.
Countries occurrence:
Indonesia (Sumatera)
Additional data:
Estimated area of occupancy (AOO) - km2:20.00Continuing decline in area of occupancy (AOO):No
Estimated extent of occurrence (EOO) - km2:46.86
Continuing decline in extent of occurrence (EOO):No
Number of Locations:6Continuing decline in number of locations:No
Extreme fluctuations in the number of locations:UnknownLower elevation limit (metres):2000
Upper elevation limit (metres):2400
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:The six subpopulations of N. aristolochioides range in size from one to approximately 30 mature individuals. Three of the subpopulations were surveyed in the field in 2013, whereas the remainder are remote and have not been surveyed for several years. This taxon seems to be fastidious, growing only in the wettest sites in the Mt Kerinci-Mt Tujuh area.
Current Population Trend:Decreasing
Additional data:
Number of mature individuals:60Continuing decline of mature individuals:Yes
Population severely fragmented:Yes
No. of subpopulations:6Continuing decline in subpopulations:No
All individuals in one subpopulation:No

Habitat and Ecology [top]

Habitat and Ecology:Five of the six subpopulations occur on and slightly below the tops of steep ridges, growing in both mossy forest and in more open vegetation on the steepest slopes just below the ridge line. The third subpopulation grows in a relatively flat, open swampy area. All sites are extremely moist, year-round. N. aristolochioides is generally terrestrial, but some plants are known to be epiphytic in mossy forest.
Continuing decline in area, extent and/or quality of habitat:No
Generation Length (years):3-5

Use and Trade [top]

Use and Trade: N. aristolochioides has horticultural value and is cultivated by enthusiasts of Nepenthes worldwide. Despite the fact that artificially propagated plants are readily available from several reputable suppliers, the removal of wild plants continues. Apart from horticulture, there are no other known uses for this species.

Threats [top]

Major Threat(s): Although the horticultural market for this species is small and specialized, the fact that this species is rare in the wild means that even low rates of collection of plants from the wild can result in significant reductions to the overall population size. Despite the fact that artificially propagated plants are readily available from several reputable suppliers, the removal of wild plants continues. No other threats, actual or perceived, appear to affect N. aristolochioides at present.

Conservation Actions [top]

Conservation Actions: N. aristolochioides is currently listed on CITES Appendix II. All subpopulations lie within Kerinci-Seblat National Park. No other species-specific conservation actions exist.

Citation: Clarke, C.M. 2013. Nepenthes aristolochioides. The IUCN Red List of Threatened Species 2013: e.T39644A19630981. . Downloaded on 19 June 2018.
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