Podocarpus rostratus 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Pinopsida Pinales Podocarpaceae

Scientific Name: Podocarpus rostratus L.Laurent
Taxonomic Source(s): Farjon, A. 2010. A Handbook of the World's Conifers. Koninklijke Brill, Leiden.
Taxonomic Notes: This assessment includes collections determined as Podocarpus woltzii, which is regarded by David J. de Laubenfels as a synonym of P. rostratus.

Assessment Information [top]

Red List Category & Criteria: Endangered B2ab(ii,iii,v) ver 3.1
Year Published: 2013
Date Assessed: 2011-07-11
Assessor(s): Farjon, A.
Reviewer(s): Thomas, P. & Luscombe, D
The area of occupancy estimated here (175 km2) may already be much less in the field, as some localities are based on historical herbarium collections, where it has not been collected since. There is no doubt about the continuing decline, so the species meets criterion B2  for listing as Endangered.
Previously published Red List assessments:

Geographic Range [top]

Range Description:Endemic to Madagascar occurring in  Antsiranana, Fianarantsoa, Mahajanga, and Toamasina Provinces.
Countries occurrence:
Additional data:
Estimated area of occupancy (AOO) - km2:175Continuing decline in area of occupancy (AOO):Yes
Estimated extent of occurrence (EOO) - km2:21229
Number of Locations:3
Lower elevation limit (metres):1800
Upper elevation limit (metres):2400
Range Map:Click here to open the map viewer and explore range.

Population [top]

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

Habitat and Ecology [top]

Habitat and Ecology:Podocarpus rostratus is recorded from rocky slopes on silicious rocks; the elevation is given as 1,800-2,400 m a.s.l. (herbarium data), but the range may be greater according to GIS calculations and information from literature. It occurs in ericaceous scrubland near the summits of mountains, a vegetation type prone to fires. It is not well adapted to fires and therefore occupies either open, rocky places with little vegetation, or wetter sites along streams.
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): This species is known from three highly disjunct subpopulations. The greater number of herbarium collections is from the northern subpopulation and only one from each of the eastern and southern subpopulations (over 1,000 km apart), made in 1924-25 at locations which have probably since been cleared. All but one of the collections were made more than 50 years ago. The area of occupancy (AOO) of the northern population is less than 175 km2 and only one subpopulation is inside a protected area, a collection was made there recently (2005). Serious decline of small subpopulations is therefore inferred for this species, which is susceptible to fires.

Conservation Actions [top]

Conservation Actions: One locality is in a protected area: near Sofia in Mahajanga Province.

Citation: Farjon, A. 2013. Podocarpus rostratus. The IUCN Red List of Threatened Species 2013: e.T34096A2845405. . Downloaded on 23 April 2018.
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