Pandanus multispicatus

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
PLANTAE	TRACHEOPHYTA	LILIOPSIDA	PANDANALES	PANDANACEAE

Scientific Name:	Pandanus multispicatus
Species Authority:	Balf.f.

Assessment Information [top]

Red List Category & Criteria:

Near Threatened ver 3.1

Year Published:

2011

Assessor/s:

Ismail, S., Huber, M.J. & Mougal, J.

Reviewer/s:

Gibbs, D. & Lutz, M.L.

Contributor/s:

Justification:
Pandanus multispicatus is well distributed on six islands in the Seychelles (Mahé, Praslin, Silhouette, Curieuse, Frégate and Félicité). It is restricted to rocky outcrops and therefore has a very small area of suitable habitat. But nearly all glacis from sea level to high altitudes are occupied by P. multispicatus. This habitat type is not as heavily invaded as other habitats in Seychelles (Fleischmann 1997). However, it can be observed that the invasive species Alstonia macrophylla starts to establish in this habitat type. This development could rapidly change the threat status of this species. It is listed as Near Threatened.

History:

1998	–	Vulnerable (Oldfield et al. 1998)
1998	–	Vulnerable

Geographic Range [top]

Range Description:	Endemic to Seychelles, this species is well distributed on six islands (Mahé, Praslin, Silhouette, Curieuse, Frégate and Félicité) (Robertson 1989, Dogley and Matatiken 2006). The total area of these islands is 224 km² (National Statistics Bureau 2005). The extent of occurrence (EOO) is therefore less than 5,000 km² and the area of occupancy (AOO) less than 500 km². In 1994, it was found in 37 out of total 73 areas of special conservation value (Carlström 1996). It is most probable that it still occurs in these areas.
Countries:	Native: Seychelles (Seychelles (main island group))
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	Total population size in the wild is very likely to exceed 10,000 mature individuals. This species is locally abundant, frequently being one of the most common species in dry rocky outcrop communities (Carlström 1996). As the species is restricted to rocky outcrops it has a very small area of suitable habitat. But nearly all glacis from sea level to high altitudes are occupied by this species. This habitat type is not as heavily invaded as other habitats in Seychelles (Fleischmann 1997). These areas are mostly unsuitable for human development. No present or future declines are expected.
Population Trend:	Stable

Population:

Total population size in the wild is very likely to exceed 10,000 mature individuals. This species is locally abundant, frequently being one of the most common species in dry rocky outcrop communities (Carlström 1996). As the species is restricted to rocky outcrops it has a very small area of suitable habitat. But nearly all glacis from sea level to high altitudes are occupied by this species. This habitat type is not as heavily invaded as other habitats in Seychelles (Fleischmann 1997). These areas are mostly unsuitable for human development. No present or future declines are expected.

Population Trend:

Stable

Habitat and Ecology [top]

Habitat and Ecology:	Exposed rocky outcrops, on cliffs and on mountain summits, from near sea level to approximately 500 m. It is reported that reproduction could be disturbed by rats removing young fruits (Carström 1996). It is also observed that the invasive species, Alstonia macrophylla, is starting to establish in the glacis habitat type. This process could rapidly change the threat status of this species (RDLP workshop 2006).
Systems:	Terrestrial

Habitat and Ecology:

Exposed rocky outcrops, on cliffs and on mountain summits, from near sea level to approximately 500 m. It is reported that reproduction could be disturbed by rats removing young fruits (Carström 1996). It is also observed that the invasive species, Alstonia macrophylla, is starting to establish in the glacis habitat type. This process could rapidly change the threat status of this species (RDLP workshop 2006).

Systems:

Terrestrial

Threats [top]

Major Threat(s):	This species is not threatened at the moment, it is possible that reproduction sometimes is disturbed by rats removing young fruits (Carlström 1996). Furthermore, the invasive species, Alstonia macrophylla, is starting to establish in the glacis habitat type. This process could rapidly change the threat status of this species (RDLP workshop 2006).

Major Threat(s):

This species is not threatened at the moment, it is possible that reproduction sometimes is disturbed by rats removing young fruits (Carlström 1996). Furthermore, the invasive species, Alstonia macrophylla, is starting to establish in the glacis habitat type. This process could rapidly change the threat status of this species (RDLP workshop 2006).

Conservation Actions [top]

Conservation Actions:	The species is present in the Morne Seychellois National Park, Praslin National Park and Curieuse Marine National Park.

Conservation Actions:

The species is present in the Morne Seychellois National Park, Praslin National Park and Curieuse Marine National Park.

Citation:	Ismail, S., Huber, M.J. & Mougal, J. 2011. Pandanus multispicatus. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 21 May 2013.
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