Podocarpus ridleyi 


Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Pinopsida Pinales Podocarpaceae

Scientific Name: Podocarpus ridleyi
Species Authority: (Wasscher) N.E.Gray
Podocarpus neriifolius D.Don variety ridleyi Wasscher
Taxonomic Source(s): Farjon, A. 2010. A Handbook of the World's Conifers. Koninklijke Brill, Leiden.

Assessment Information [top]

Red List Category & Criteria: Vulnerable B2ab(ii,iii,v) ver 3.1
Year Published: 2013
Date Assessed: 2010-12-16
Assessor(s): Farjon, A.
Reviewer(s): Thomas, P. & Carter, G.
Rapid change in land use involving the conversion of rainforest into rubber tree plantations have had an impact on the trees that occurred on the lower slopes of at least the southern subpopulations of this species, restricting them to the higher summit areas. This must have reduced the area of occupancy (estimated as 700 km2) as well as the habitat and numbers of mature trees; the population is now severely fragmented and the declines are continuing. On this Podocarpus ridelyi basis it is assessed as Vulnerable under the B2 criterion.
Previously published Red List assessments:
1998 Lower Risk/least concern (LR/lc)

Geographic Range [top]

Range Description: Endemic to Peninsular Malaysia.
Countries occurrence:
Malaysia (Peninsular Malaysia)
Estimated area of occupancy (AOO) - km2: 700
Continuing decline in area of occupancy (AOO): Yes
Estimated extent of occurrence (EOO) - km2: 64356
Lower elevation limit (metres): 480
Upper elevation limit (metres): 1500
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: The population is thought to be decreasing.
Current Population Trend: Decreasing
Additional data:
Continuing decline of mature individuals: Yes
Population severely fragmented: Yes

Habitat and Ecology [top]

Habitat and Ecology: Podocarpus ridleyi occurs localized on several mountain summits and ridges in somewhat stunted rain forest; it may attain greater size when it occurs in forest on slopes below these summits. Its altitudinal range is from 480 m to 1,500 m (possibly to 2,100 m) a.s.l. It grows in impoverished soils derived from sandstone or granite (Mt. Ophir) and can be the dominant tree in these localities.
Systems: Terrestrial
Continuing decline in area, extent and/or quality of habitat: Yes
Generation Length (years): 40

Use and Trade [top]

Use and Trade:  No uses have been recorded of this species.

Threats [top]

Major Threat(s): Deforestation, logging (to a lesser extent), and conversion of forests to plantations of rubber trees are the main threats.

Conservation Actions [top]

Conservation Actions: This species has been recorded from some protected areas. Further field work is required to assess its distribution and population size.

Citation: Farjon, A. 2013. Podocarpus ridleyi. The IUCN Red List of Threatened Species 2013: e.T42527A2985283. . Downloaded on 29 November 2015.
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