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Podocarpus dispermus

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Taxonomy [top]

Kingdom Phylum Class Order Family
PLANTAE TRACHEOPHYTA PINOPSIDA PINALES PODOCARPACEAE

Scientific Name: Podocarpus dispermus
Species Authority: C.T.White
Common Name(s):
English Broad-leaved Brown Pine

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2013
Date Assessed: 2010-11-19
Assessor(s): Thomas, P.
Reviewer(s): Farjon, A.
Contributor(s): Pye, M. & Luscombe, D
Justification:
Although Podocarpus dispermus has a restricted range (extent of occurrence (EOO) = 2,670 km2; area of occupancy (AOO) = ca. 170 km2) that is within the thresholds for Endangered, it is known from at least twelve localities and subpopulations are not severely fragmented. The population is thought to be stable although its total size is unknown. Loss of dispersal vectors and seedling herbivory by introduced pigs are potential but not yet realised threats to regeneration. However, there is no current evidence for decline or exploitation and the vast majority of locations are within protected areas. The future effects of climate change may represent a future threat but have not been evaluated or quantified at this time. In the absence of any decline, this species is assessed as Least Concern rather than as Near Threatened (as was previously the case).
History:
2007 Near Threatened
1998 Data Deficient (Oldfield et al. 1998)
1998 Data Deficient
1997 Rare (Walter and Gillett 1998)

Geographic Range [top]

Range Description: The species is confined to the eastern edge and escarpment of the Atherton Tableland in northeast Queensland, Australia. The extent of occurrence is estimated to be about 2,670 km2, based on recent herbarium specimens. Its altitudinal range is from near sea level up to about 800 m.  Recent (post 1979) specimens compared to historic specimens (pre 1979) indicate that it still occurs within most of its historic range. Some lowland sites may have been lost.
Countries:
Native:
Australia (Queensland)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: Subpopulations are usually small and individuals are scattered.
Population Trend: Stable

Habitat and Ecology [top]

Habitat and Ecology: Grows in mesophyll vine forest (rainforest) in which it is a small understorey tree with large leaves. Seed may be dispersed by Southern Cassowary (Casuarius casuarius) or Musky Rat-Kangaroos (Hypsiprymnodon moschatus).
Systems: Terrestrial

Use and Trade [top]

Use and Trade: The species would have been used by early European settlers for light construction work.

Threats [top]

Major Threat(s): Due to its relatively restricted range and the degree of historic fragmentation of its habitat, P. dispermus could be susceptible to to stochastic threats such as forest fires and cyclones. Loss of dispersal vectors and seedling herbivory by introduced pigs are potential threats to regeneration.

Conservation Actions [top]

Conservation Actions: The majority of locations are within the Wet Tropics of Queensland World Heritage Site and most of these are within protected areas such as national parks or forest reserves.

Citation: Thomas, P. 2013. Podocarpus dispermus. The IUCN Red List of Threatened Species. Version 2014.3. <www.iucnredlist.org>. Downloaded on 19 December 2014.
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