Map_thumbnail_large_font

Canavalia veillonii 

Scope: Global
Language: English
Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_offStatus_en_offStatus_cr_onStatus_ew_offStatus_ex_off

Translate page into:

Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Magnoliopsida Fabales Leguminosae

Scientific Name: Canavalia veillonii I.C.Nielsen
Taxonomic Notes: This unique specimen might be an ecotype of C. rosea. More material would be necessary to confirm the validity of the taxon.

Assessment Information [top]

Red List Category & Criteria: Critically Endangered (Possibly Extinct) A2ce; B1ab(iii)+2ab(iii) ver 3.1
Year Published: 2010
Date Assessed: 2007-05-15
Assessor(s): Hequet, V.
Reviewer(s): Pollock, C.M. & Hilton-Taylor, C.
Justification:
Canavalia veillonii has an extent of occurrence (EOO) and an area of occupancy (AOO) of 4 km². The species is endemic to a single dry forest in New Caledonia. Its habitat is among the most threatened in the country; dry forests have been reduced dramatically, both in size and quality. They have been severely cleared for agricultural purposes over the last century and what remains today are highly fragmented patches that suffer intense predation by the introduced Rusa Deer (Cervus timorensis russa) and uncontrolled fires. Reduction of this habitat has been estimated at 95% over the last 150 years (Bouchet 1995) and degradation continues today. From this it is suspected that a population reduction of at least 80% has occurred; in fact C. veillonii has not been seen since it was first collected in 1990 (hence it is considered to be Critically Endangered (Possibly Extinct).
Date last seen: 1990

Geographic Range [top]

Range Description:This species is endemic to New Caledonia where it is known from a single collection from a dry forest in Bourail region. Its total extent of occurrence and area of occupancy are 4 km².
Countries occurrence:
Possibly extinct:
New Caledonia
Additional data:
Estimated area of occupancy (AOO) - km2:4
Number of Locations:1
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This species is known from a single herbarium specimen.
Current Population Trend:Unknown
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:This species is endemic to New Caledonian dry forests. Tropical dry forests are probably among the world’s most endangered of all lowland tropical forests. Because of their propensity to become pastures and their susceptibility to fire, dry forests have reduced dramatically, in size as well as in quality. In New Caledonia, they’ve been intensively cut for agricultural purposes for a century; what remains today are highly fragmented patches that have been estimated at 2% of the original area.
Systems:Terrestrial
Continuing decline in area, extent and/or quality of habitat:Yes

Threats [top]

Major Threat(s): The major threat is lowland clearing for cattle grazing and agriculture, which began in the 1850s and is ongoing. Another threat comes from the Rusa Deer (Cervus timorensis russa), which was introduced in the 1880s and adapted extremely well to the Caledonian habitats. Its population may have reached 105,000–110,000 individuals in the wild. This deer consumes a wide variety of plant species and also causes severe damage to trees by rubbing antlers against tree stems. The third major threat is uncontrolled fires that sweep across lowlands of New Caledonia each year during the dry season and have slowly transformed remnant patches of dry forest into shrubland dominated by Acacia spirorbis and Leucaena leucocephala, or Niaouli (Melaleuca quinquenervia) savannas.

Conservation Actions [top]

Conservation Actions: Site based actions are impending, but nothing has been done for the conservation of this species yet. Survey targeting this species are needed.

Citation: Hequet, V. 2010. Canavalia veillonii. The IUCN Red List of Threatened Species 2010: e.T177879A7474849. . Downloaded on 21 November 2017.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please provide us with feedback so that we can correct or extend the information provided