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ISLAND DIRECTORY


Islands of Seychelles

Aldabra     [969]
   Group: Archipelago: Seychelles Islands (Coralline)
   Country: Seychelles   Region: Comoro/Aldabra
Lat: 9.40º S   Long : 46.37º E
Area: 129.3 sq. km   Altitude: 3 m
Shoreline: 103.9 km (scale 1:1000000)   Coastal Index: 0.8036
Depth to nearest land: 4000 m
Nearest island: 420 km   group: 420 km
Nearest continent: Africa    Distance: 640 km    Isolation Index: 66
ISLAND TYPE: atoll with 4 main islands      Natural Protection Indicator: 0
GEOLOGY/SOILS:
Slightly raised coral atoll, large shallow lagoon with many islets
CLIMATE: semiarid  tropical  wet season November to April
ECOSYSTEMS:           Number of Ecosystems - Terrestrial: 2    Marine: 4
Atoll vegetation rich in species, mangroves; mudflats, windward and leeward atoll reefs and lagoon.   Coral reefs,  Mangroves
SPECIES NUMBERS: Total Endemic Threatened (EVRI)
Plants  273 19 0
Butterflies 0 0 0
Land snails 0 0 0
Rept/Amphib 0 0 0
Land birds 13 13 0
Mammals 0 0 0

SPECIES OF CONSERVATION INTEREST:
Plants: 273 flowering plants and ferns, including 19 endemics Peponium sublitorale, endemic only to south island Reptiles: Geochelone gigantea (Giant Tortoise) 152,000, self-sustaining Birds: 13 terrestrial species, all at least endemic subspecies Butorides striatus degens, endemic subspecies, 200-600 ? Caprimulgus madagascariensis aldabranis, endemic subspecies Centropus toulou insularis, endemic subspecies Dicrurus aldabranus (Aldabra Drongo) endemic Dryolimnas cuvieri aldabranus (Aldabra White-throated Rail) endemic subspecies, flightless, 7,000-9,000(1981), Rare Falco newtoni aldabranus (Aldabra Kestrel) endemic subspecies, 80-100 (1981) Rare Foudia eminentissima aldabrana, endemic subspecies Hypsipetes madagascariensis rostratus, endemic subspecies Nesillas aldabranus (Aldabra Brush Warbler) endemic, 5-11(1981) Indeterminate Streptopelia picturata coppingeri, endemic subspecies Threskiornis aethiopica abbott (Aldabra Sacred Ibis) endemic subspecies, 200-300 (1981)
SPECIES RICHNESS:   Species Richness Indicator - Terrestrial: 1  Marine: 0
moderate for plants
ENDEMISM: Terrestrial:   Terrestrial Endemism Indicator - Island: 2  Group: 2
    high for an atoll
  Marine endemic species: 0   Marine Endemism Indicator - Island: 0  Group: 0
SPECIAL FEATURES :   Special Features Indicator - Terrestrial: 3   Marine: 0
  seabird rookery turtle nesting area
  world's largest giant tortoise population
INVASIVE SPECIES:     Invasive Species Indicator: 3
  rats, cats, goats and some exotic plants

HUMAN OCCUPATION: Inhabited, small resident population and visitors
  Population: 12 (1981)   Density: 0.1 persons/sq. km
  Growth Rate: 0.0%/yr   Stable
  Major Human Activities: nature reserve, research
HUMAN IMPACTS:
Some past exploitation, but populations have recovered; research station, meteorological station.
Conservation support: leased from government as reserve
PROTECTED AREAS:    Protected Area Coverage Indicators - Terrestrial: 7  Marine: 0
  Number: 1   Area: Terrestrial: 129.3 sq. km    Marine: 0 sq. km
Aldabra is a strict nature reserve and a World Heritage Site (1982)
DATA RELIABILITY: well-researched    Data Rel. Indicator: 3
HUMAN IMPACT INDEX     HI: 3
CONSERVATION IMPORTANCE INDEX   CI-Terrestrial: 20   Very high
CI-Marine: 3   Low
REFERENCES:

Last updated: 06/11/88

Aride     [1417]
   Group: Praslin Group   Archipelago: Seychelles Islands (Granitic)
   Country: Seychelles
Lat: 4.22º S   Long : 55.67º E
Area: 0.0 sq. km   Altitude: ? m
Depth to nearest land: 4000 m
Nearest island: 7 km   group: 1100 km
Nearest continent: Africa    Distance: 1400 km    Isolation Index: 73
ISLAND TYPE: continental granitic      Natural Protection Indicator: 2
CLIMATE:   tropical 
ECOSYSTEMS:           

HUMAN OCCUPATION: Uninhabited, ?
  Population: 0    Density: 0.0 persons/sq. km
  Percent population in agr/mining/fishing: 21%   Human Threat Indicator: 1
  Gross Domestic Product: $ 2327 per capita    Economic Pressure Indicator: 1
Conservation support: government support, legislation
PROTECTED AREAS:    Protected Area Coverage Indicators - Terrestrial: 0  Marine: 0
  Number: 1   Area: Terrestrial: 0.7 sq. km    Marine: 0 sq. km
DATA RELIABILITY:    Data Rel. Indicator: 2
HUMAN IMPACT INDEX     HI: 2
CONSERVATION IMPORTANCE INDEX   CI-Terrestrial: 2   Low
CI-Marine: 2   Low
Last updated: 25/10/90

Bird     [1416]
Group: Archipelago: Seychelles Islands (Coralline)
Country: Seychelles: Indian
Lat: 3.6º SLong: 55.2º E
Area: 0.0 sq. km   Altitude: ? m
ISLAND TYPE: coralline ?

Cousin     [1420]
Group: Archipelago: Seychelles Islands (Granitic)
Country: Seychelles: Indian
Lat: 4.33º SLong: 55.67º E
Area: 0.0 sq. km   Altitude: ? m
ISLAND TYPE: continental granitic

Curieuse     [1418]
   Group: Praslin Group   Archipelago: Seychelles Islands (Granitic)
   Country: Seychelles
Lat: 4.25º S   Long : 55.73º E
Area: 0.0 sq. km   Altitude: ? m
Depth to nearest land: 4000 m
Nearest island: 1 km   group: 1100 km
Nearest continent: Africa    Distance: 1400 km    Isolation Index: 72
ISLAND TYPE: continental granitic      Natural Protection Indicator: 2
CLIMATE:   tropical 
ECOSYSTEMS:           

HUMAN OCCUPATION: Uninhabited, ?
  Population: 0    Density: 0.0 persons/sq. km
  Percent population in agr/mining/fishing: 21%   Human Threat Indicator: 1
  Gross Domestic Product: $ 2327 per capita    Economic Pressure Indicator: 1
Conservation support: government support, legislation
PROTECTED AREAS:    Protected Area Coverage Indicators - Terrestrial: 0  Marine: 0
  Number: 1   Area: Terrestrial: 9.8 sq. km    Marine: 5 sq. km
DATA RELIABILITY:    Data Rel. Indicator: 2
HUMAN IMPACT INDEX     HI: 2
CONSERVATION IMPORTANCE INDEX   CI-Terrestrial: 2   Low
CI-Marine: 2   Low
Last updated: 25/10/90

Denis     [1415]
Group: Archipelago: Seychelles Islands (Coralline)
Country: Seychelles: Indian
Lat: 3.78º SLong: 55.65º E
Area: 0.0 sq. km   Altitude: ? m
ISLAND TYPE: coralline

Frigate (Fregate)    [1412]
   Group: Frigate Group   Archipelago: Seychelles Islands (Granitic)
   Country: Seychelles
Lat: 4.58º S   Long : 55.93º E
Area: 0.0 sq. km   Altitude: ? m
Depth to nearest land: 4000 m
Nearest island: 25 km   group: 1100 km
Nearest continent: Africa    Distance: 1400 km    Isolation Index: 76
ISLAND TYPE: continental granitic      Natural Protection Indicator: 2
CLIMATE:   tropical 
ECOSYSTEMS:           

ENDEMISM: Terrestrial:   Terrestrial Endemism Indicator - Island: 0  Group: 0
    beetle
  Marine endemic species: 0   Marine Endemism Indicator - Island: 0  Group: 0
HUMAN OCCUPATION: Uninhabited, ?
  Population: 0    Density: 0.0 persons/sq. km
  Percent population in agr/mining/fishing: 21%   Human Threat Indicator: 1
  Gross Domestic Product: $ 2327 per capita    Economic Pressure Indicator: 1
Conservation support: government support, legislation
DATA RELIABILITY:    Data Rel. Indicator: 2
HUMAN IMPACT INDEX     HI: 2
CONSERVATION IMPORTANCE INDEX   CI-Terrestrial: 2   Low
CI-Marine: 2   Low
Last updated: 06/11/88

La Digue     [1419]
   Group: Archipelago: Seychelles Islands (Granitic)
   Country: Seychelles
Lat: 4.33º S   Long : 55.85º E
Area: 0.0 sq. km   Altitude: ? m
Depth to nearest land: 4000 m
Nearest island: 5 km   group: 1100 km
Nearest continent: Africa    Distance: 1400 km    Isolation Index: 73
ISLAND TYPE: continental granitic      Natural Protection Indicator: 0
CLIMATE:   tropical 
ECOSYSTEMS:           

HUMAN OCCUPATION: Inhabited
  Population: 1926 (1987)   Density: 0.0 persons/sq. km
  Maximum known population: 1980
  Growth Rate: 1.0%/yr   Increasing slowly
  Percent population in agr/mining/fishing: 21%   Human Threat Indicator: 1
  Gross Domestic Product: $ 2327 per capita    Economic Pressure Indicator: 1
Conservation support: government support, legislation
PROTECTED AREAS:    Protected Area Coverage Indicators - Terrestrial: 0  Marine: 0
  Number: 1   Area: Terrestrial: 0.1 sq. km    Marine: 0 sq. km
DATA RELIABILITY:    Data Rel. Indicator: 2
HUMAN IMPACT INDEX     HI: 2
Last updated: 25/10/90

Mahe   - including Conception, Therese, Vache    [1407]
   Group: Mahe Group   Archipelago: Seychelles Islands (Granitic)
   Country: Seychelles
Lat: 4.67º S   Long : 55.50º E
Area: 148.0 sq. km   Altitude: 905 m
Depth to nearest land: 4000 m
Nearest island: 40 km   group: 1100 km
Nearest continent: Africa    Distance: 1400 km    Isolation Index: 77
ISLAND TYPE: continental granitic      Natural Protection Indicator: 0
CLIMATE: wet  tropical  1700 to 3500 mm
ECOSYSTEMS:           
Lowland rain forest, submontane rain forest, cloud forest; mangroves; wide fringing reef, shallow lagoon, sandy bottom, algal beds   Forest  Coral reefs
HUMAN OCCUPATION: Inhabited
  Population: 61185 (1987)   Density: 413.4 persons/sq. km
  Maximum known population: 61185
  Growth Rate: 1.0%/yr   Increasing slowly
  Major Human Activities: tourism, fishing,, coconuts
  Accessibility: port, airport  Annual tourist arrivals: 77401
  Percent population in agr/mining/fishing: 21%   Human Threat Indicator: 1
  Gross Domestic Product: $ 2327 per capita    Economic Pressure Indicator: 1
Conservation support: government support, legislation
PROTECTED AREAS:    Protected Area Coverage Indicators - Terrestrial: 3  Marine: 0
  Number: 3   Area: Terrestrial: 32.8 sq. km    Marine: 0 sq. km
DATA RELIABILITY:    Data Rel. Indicator: 2
HUMAN IMPACT INDEX     HI: 16
CONSERVATION IMPORTANCE INDEX   CI-Terrestrial: 1   Low
CI-Marine: 0   Low
Last updated: 18/02/90

Mamelle     [1410]
   Group: Mahe Group   Archipelago: Seychelles Islands (Granitic)
   Country: Seychelles
Lat: 4.48º S   Long : 55.52º E
Area: 0.0 sq. km   Altitude: ? m
Depth to nearest land: 4000 m
Nearest island: 10 km   group: 1100 km
Nearest continent: Africa    Distance: 1400 km    Isolation Index: 74
ISLAND TYPE: continental granitic      Natural Protection Indicator: 2
CLIMATE:   tropical 
ECOSYSTEMS:           

HUMAN OCCUPATION: Uninhabited, ?
  Population: 0    Density: 0.0 persons/sq. km
  Percent population in agr/mining/fishing: 21%   Human Threat Indicator: 1
  Gross Domestic Product: $ 2327 per capita    Economic Pressure Indicator: 1
Conservation support: government support, legislation
PROTECTED AREAS:    Protected Area Coverage Indicators - Terrestrial: 0  Marine: 0
  Number: 1   Area: Terrestrial: 0.0 sq. km    Marine: 0 sq. km
DATA RELIABILITY:    Data Rel. Indicator: 2
HUMAN IMPACT INDEX     HI: 2
CONSERVATION IMPORTANCE INDEX   CI-Terrestrial: 2   Low
CI-Marine: 2   Low
Last updated: 25/10/90

Praslin   - including Booby    [1411]
   Group: Praslin Group   Archipelago: Seychelles Islands (Granitic)
   Country: Seychelles
Lat: 4.30º S   Long : 55.70º E
Area: 26.0 sq. km   Altitude: 340 m
Depth to nearest land: 4000 m
Nearest island: 16 km   group: 1100 km
Nearest continent: Africa    Distance: 1400 km    Isolation Index: 75
ISLAND TYPE: continental granitic      Natural Protection Indicator: 0
CLIMATE:   tropical 
ECOSYSTEMS:           

HUMAN OCCUPATION: Inhabited
  Population: 5002 (1987)   Density: 192.4 persons/sq. km
  Maximum known population: 5650
  Growth Rate: 1.0%/yr   Increasing slowly
  Major Human Activities: tourism
  Percent population in agr/mining/fishing: 21%   Human Threat Indicator: 1
  Gross Domestic Product: $ 2327 per capita    Economic Pressure Indicator: 1
Conservation support: government support, legislation
DATA RELIABILITY:    Data Rel. Indicator: 2
HUMAN IMPACT INDEX     HI: 8
Last updated: 18/02/90

Recif     [1413]
Group: Archipelago: Seychelles Islands (Granitic)
Country: Seychelles: Indian
Lat: 4.60º SLong: 55.70º E
Area: 0.0 sq. km   Altitude: ? m
ISLAND TYPE: continental granitic

Silhouette     [1409] - including North
Group: Silhouette Group, Archipelago: Seychelles Islands (Granitic)
Country: Seychelles: Indian
Lat: 4.48º SLong: 55.20º E
Area: 0.0 sq. km   Altitude: ? m
ISLAND TYPE: continental granitic

St Anne   - including Moyenne,Long,Cerf,Round,Cach‚e   [1408]
   Group: Mahe Group   Archipelago: Seychelles Islands (Granitic)
   Country: Seychelles
Lat: 4.60º S   Long : 55.50º E
Area: 14.2 sq. km   Altitude: 250 m
Depth to nearest land: 4000 m
Nearest island: 5 km   group: 1100 km
Nearest continent: Africa    Distance: 1400 km    Isolation Index: 73
ISLAND TYPE: continental granitic      Natural Protection Indicator: 2
CLIMATE:   tropical 
ECOSYSTEMS:           

HUMAN OCCUPATION: Inhabited
  Population: 0    Density: 0.0 persons/sq. km
  Major Human Activities: tourism, fishing
  Percent population in agr/mining/fishing: 21%   Human Threat Indicator: 1
  Gross Domestic Product: $ 2327 per capita    Economic Pressure Indicator: 1
Conservation support: government support, legislation, tenure
PROTECTED AREAS:    Protected Area Coverage Indicators - Terrestrial: 7  Marine: 0
  Number: 1   Area: Terrestrial: 14.2 sq. km    Marine: 0 sq. km
DATA RELIABILITY:    Data Rel. Indicator: 2
HUMAN IMPACT INDEX     HI: 2
CONSERVATION IMPORTANCE INDEX   CI-Terrestrial: 2   Low
CI-Marine: 2   Low
Last updated: 25/10/90



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Page last updated: 02/03/98