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ISLAND DIRECTORY


Islands of Palau

Babeldaob (Babelthuap)    [430]
   Group: Archipelago: Palau Islands
   Country: Palau   Region: Oceania 13
Lat: 7.50º N   Long : 134.58º E
Area: 374.1 sq. km   Altitude: 245 m
Shoreline: 143.7 km (scale 1:1000000)   Coastal Index: 0.3841
Depth to nearest land: 3000 m
Nearest island: 2 km   group: 850 km
Nearest continent: Asia    Distance: 2500 km    Isolation Index: 81
ISLAND TYPE: Continental(volc)/raised coral     Natural Protection Indicator: 0
GEOLOGY/SOILS:
Old weathered continental or volcanic rock, with some raised coral to south. Potential for gold mining.
CATASTROPHIC THREATS: cyclones
   Threat Indicator: 1
ECOSYSTEMS:           Number of Ecosystems - Terrestrial: 10    Marine: 10
Lowland rain forest rich in species, riverine, swamp and beach forests; mangroves; scrub, savanna and grasslands; freshwater habitats; fringing reefs, barrier reefs, seagrass beds and lagoons.
SPECIES OF CONSERVATION INTEREST:
Birds: Megapodius laperouse senex (Megapode) group endemic subspecies, Rare (RDB), precarious. Caloenas nicobarica pelewensis (Belau Nicobar Pigeon) group endemic subspecies, Endangered (RDB) Erythrura trichroa pelewensis (Belau Blue-faced Parrot Finch) group endemic subspecies, Indeterminate (RDB) or Rare. Artamus leucorhynchus pelewensis (Belau White-breasted Wood-swallow) group endemic subspecies, savanna woodlands, Rare (RDB) several hundred (1978).
SPECIES RICHNESS:   Species Richness Indicator - Terrestrial: 2  Marine: 5
moderate
ENDEMISM: Terrestrial:   Terrestrial Endemism Indicator - Island: 0  Group: 2
  Marine endemic species: 0   Marine Endemism Indicator - Island: 0  Group: 0
INVASIVE SPECIES:     Invasive Species Indicator: 0
  feral pigs

HUMAN OCCUPATION: Inhabited
  Population: 3336 (1980)   Density: 8.9 persons/sq. km
  Growth Rate: -0.3%/yr   Decreasing
  Major Human Activities: subsistence agriculture
HUMAN IMPACTS:
Heavily colonized by Japanese before W.W.II. Plans for large scale U.S. military activities and installations.
  Accessibility: airport
  Percent population in agr/mining/fishing: 70%   Human Threat Indicator: 2
  Gross Domestic Product: $ 811 per capita    Economic Pressure Indicator: 0
DATA RELIABILITY:    Data Rel. Indicator: 1
HUMAN IMPACT INDEX     HI: 2
CONSERVATION IMPORTANCE INDEX   CI-Terrestrial: 9   Moderate
CI-Marine: 18   High
REFERENCES:

Last updated: 11/09/88

Beliliou (Peleliu)    [1313]
   Group: Archipelago: Palau Islands
   Country: Palau   Region: Oceania 13
Lat: 7.03º N   Long : 134.25º E
Area: 12.7 sq. km   Altitude: 30 m
Depth to nearest land: 3000 m
Nearest island: 19 km   group: 850 km
Nearest continent: Asia    Distance: 2500 km    Isolation Index: 84
ISLAND TYPE: raised coral      Natural Protection Indicator: 0
GEOLOGY/SOILS:

CATASTROPHIC THREATS: cyclones
   Threat Indicator: 1
ECOSYSTEMS:           Number of Ecosystems - Terrestrial: 4
Limestone forest (mostly secondary regrowth), scrub; 2 tidal creeks with mangroves; fringing and barrier reefs.   Coral reefs
SPECIES OF CONSERVATION INTEREST:
Birds: Pyrroglaux podargina (Belau Scops Owl) group endemic Megapodius laperouse senex group endemic subspecies, Rare (RDB), still common locally (1980). Caloenas nicobarica pelewensis (Belau Nicobar Pigeon) group endemic subspecies, Endangered (RDB), low numbers (1980).   Species Richness Indicator - Terrestrial: 2  Marine: 5
ENDEMISM: Terrestrial:   Terrestrial Endemism Indicator - Island: 0  Group: 2
  Marine endemic species: 0   Marine Endemism Indicator - Island: 0  Group: 0
HUMAN OCCUPATION: Inhabited, former mining
  Population: 617 (1980)   Density: 48.6 persons/sq. km
  Growth Rate: -0.3%/yr   Decreasing
  Major Human Activities: former phoshate mining, heavy W.W.II fighting
HUMAN IMPACTS:

  Gross Domestic Product: $ 811 per capita    Economic Pressure Indicator: 0
DATA RELIABILITY:    Data Rel. Indicator: 1
CONSERVATION IMPORTANCE INDEX   CI-Terrestrial: 8   Moderate
CI-Marine: 11   Moderate
REFERENCES:

Last updated: 11/09/88

Chelbacheb (Rock Islands)  - Ulebsechel,Ngeruktabel,Ulong,Mecherchar    [1311]
   Group: Archipelago: Palau Islands
   Country: Palau   Region: Oceania 13
Lat: 7.25º N   Long : 134.40º E
Area: 100.0 sq. km   Altitude: 207 m
Depth to nearest land: 3000 m
Nearest island: 1 km   group: 850 km
Nearest continent: Asia    Distance: 2500 km    Isolation Index: 80
ISLAND TYPE: raised coral      Natural Protection Indicator: 0
GEOLOGY/SOILS:

CATASTROPHIC THREATS: cyclones
   Threat Indicator: 1
ECOSYSTEMS:           Number of Ecosystems - Terrestrial: 3

   Percent shoreline: Coral Reef: 99%  Mangrove: 0%
SPECIES OF CONSERVATION INTEREST:
Birds: Megapodius laperouse senex group endemic subspecies, Rare (RDB), still common on Ngeruktabel and Macharchar (1980). Caloenas nicobarica pelewensis (Belau Nicobar Pigeon) group endemic subspecies, Ngeruktabel, Macharchar, Endangered (RDB) Erythrura trichroa pelewensis (Belau Blue-faced Parrot Finch) group endemic subspecies, Indeterminate (RDB) or Rare.   Species Richness Indicator - Terrestrial: 2  Marine: 5
ENDEMISM: Terrestrial:   Terrestrial Endemism Indicator - Island: 0  Group: 2
  Marine endemic species: 0   Marine Endemism Indicator - Island: 0  Group: 0
SPECIAL FEATURES :   Special Features Indicator - Terrestrial: 1   Marine: 0
  some unique marine lakes with distinctive ecosystems
HUMAN OCCUPATION: Inhabited
  Population: 0    Density: 0.0 persons/sq. km
HUMAN IMPACTS:

  Gross Domestic Product: $ 811 per capita    Economic Pressure Indicator: 0
DATA RELIABILITY:    Data Rel. Indicator: 1
CONSERVATION IMPORTANCE INDEX   CI-Terrestrial: 9   Moderate
CI-Marine: 11   Moderate
REFERENCES:

Last updated: 11/09/88

Helen (Helen Reef)    [1316]
   Group:
   Country: Palau   Region: Oceania 13
Lat: 2.72º N   Long : 131.77º E
Area: 1.9 sq. km   Altitude: ? m
Land < 5 m elevation: 1.9 sq. km   Sea level rise risk: 9
Submerged area <100 m: 0 sq. km   Reef area: 0 sq. km   Lagoon area: 216 sq. km
Depth to nearest land: 3000 m
Nearest island: 75 km   group: 300 km
Nearest continent: Asia    Distance: 2600 km    Isolation Index: 77
ISLAND TYPE: atoll with 1 islet to north      Natural Protection Indicator: 2
CATASTROPHIC THREATS: cyclones
   Threat Indicator: 1
ECOSYSTEMS:           Number of Ecosystems - Terrestrial: 1
Coconuts and atoll scrub; lagoon 60 m deep, wide atoll reefs (1,200 m).
   Percent shoreline: Coral Reef: 99%  Mangrove: 0%   Species Richness Indicator - Terrestrial: 0  Marine: 3
SPECIAL FEATURES :   Special Features Indicator - Terrestrial: 1   Marine: 0
   turtle nesting area
HUMAN OCCUPATION: Uninhabited, visited by fishing boats for poaching
  Population: 0    Density: 0.0 persons/sq. km
  Major Human Activities: poaching of giant clams
DATA RELIABILITY:    Data Rel. Indicator: 2
CONSERVATION IMPORTANCE INDEX   CI-Terrestrial: 4   Low
CI-Marine: 9   Moderate
Last updated: 11/09/88

Ngcheangel (Kayangel)    [1308]
   Group: Archipelago: Palau Islands
   Country: Palau   Region: Oceania 13
Lat: 8.14º N   Long : 134.71º E
Area: 1.7 sq. km   Altitude: 2 m
Land < 5 m elevation: 1.7 sq. km   Sea level rise risk: 9
Depth to nearest land: 3000 m
Nearest island: 40 km   group: 850 km
Nearest continent: Asia    Distance: 2500 km    Isolation Index: 85
ISLAND TYPE: Small atoll with 4 islets      Natural Protection Indicator: 0
CLIMATE:   tropical 
CATASTROPHIC THREATS: cyclones
   Threat Indicator: 1
ECOSYSTEMS:           Number of Ecosystems - Terrestrial: 3    Marine: 4
Atoll vegetation, coconuts; windward and leeward atoll reef, lagoon   Coral reefs
SPECIES NUMBERS: Total Endemic Threatened (EVRI)
Plants  31 0 0
Butterflies 0 0 0
Land snails 0 0 0
Rept/Amphib 0 0 0
Land birds 0 0 0
Mammals 0 0 0

SPECIES RICHNESS:   Species Richness Indicator - Terrestrial: 0  Marine: 4
high marine species diversity
ENDEMISM: Terrestrial:   Terrestrial Endemism Indicator - Island: 0  Group: 1
  Marine endemic species: 0   Marine Endemism Indicator - Island: 0  Group: 0
SPECIAL FEATURES :   Special Features Indicator - Terrestrial: 1   Marine: 0
  some seabirds marine turtles
INVASIVE SPECIES:     Invasive Species Indicator: 0
  Bufo marinus (cane toad), Varanus indicus (Monitor
HUMAN OCCUPATION: Inhabited
  Population: 140 (1980)   Density: 82.4 persons/sq. km
  Growth Rate: -0.3%/yr   Decreasing
  Major Human Activities: coconuts, subsistence agriculture
  Percent population in agr/mining/fishing: 90%   Human Threat Indicator: 3
  Gross Domestic Product: $ 811 per capita    Economic Pressure Indicator: 0
DATA RELIABILITY:    Data Rel. Indicator: 1
HUMAN IMPACT INDEX     HI: 4
CONSERVATION IMPORTANCE INDEX   CI-Terrestrial: 4   Low
CI-Marine: 12   Moderate
Last updated: 11/09/88

Ngeaur (Angaur)    [1314]
   Group: Archipelago: Palau Islands
   Country: Palau   Region: Oceania 13
Lat: 6.92º N   Long : 134.15º E
Area: 8.4 sq. km   Altitude: 61 m
Depth to nearest land: 3000 m
Nearest island: 11 km   group: 850 km
Nearest continent: Asia    Distance: 2500 km    Isolation Index: 82
ISLAND TYPE: raised coral, no surface water     Natural Protection Indicator: 0
GEOLOGY/SOILS:

CATASTROPHIC THREATS: cyclones
   Threat Indicator: 1
ECOSYSTEMS:           Number of Ecosystems - Terrestrial: 3

SPECIES OF CONSERVATION INTEREST:
Birds Megapodius laperouse senex, group endemic subspecies, Rare (RDB), still common locally (1980).   Species Richness Indicator - Terrestrial: 2  Marine: 5
ENDEMISM: Terrestrial:   Terrestrial Endemism Indicator - Island: 0  Group: 2
  Marine endemic species: 0   Marine Endemism Indicator - Island: 0  Group: 0
HUMAN OCCUPATION: Inhabited, decreasing population
  Population: 243 (1980)   Density: 28.9 persons/sq. km
  Growth Rate: -0.3%/yr   Decreasing
  Major Human Activities: former phosphate mining
HUMAN IMPACTS:
Heavily mined for phosphate until 1955, abandoned mining facilities; large airstrip.
  Accessibility: airport
  Gross Domestic Product: $ 811 per capita    Economic Pressure Indicator: 0
DATA RELIABILITY:    Data Rel. Indicator: 1
CONSERVATION IMPORTANCE INDEX   CI-Terrestrial: 8   Moderate
CI-Marine: 11   Moderate
REFERENCES:

Last updated: 11/09/88

Ngerekebesang (Arakabesan)    [1310]
   Group: Archipelago: Palau Islands
   Country: Palau   Region: Oceania 13
Lat: 7.37º N   Long : 134.47º E
Area: 5.2 sq. km   Altitude: ? m
Depth to nearest land: 3000 m
Nearest island: 1 km   group: 850 km
Nearest continent: Asia    Distance: 2500 km    Isolation Index: 80
ISLAND TYPE: volcanic      Natural Protection Indicator: 0
GEOLOGY/SOILS:

CATASTROPHIC THREATS: cyclones
   Threat Indicator: 1
ECOSYSTEMS:           Number of Ecosystems - Terrestrial: 10

SPECIES OF CONSERVATION INTEREST:
Birds: Caloenas nicobarica pelewensis (Belau Nicobar Pigeon) group endemic subspecies, Endangered (RDB) Erythrura trichroa pelewensis (Belau Blue-faced Parrot Finch) group endemic subspecies, Indeterminate (RDB) or Rare. Marine life: 117 corals in 40 genera; bivalves abundant; 125 fish species.   Species Richness Indicator - Terrestrial: 2  Marine: 2
ENDEMISM: Terrestrial:   Terrestrial Endemism Indicator - Island: 0  Group: 2
  Marine endemic species: 0   Marine Endemism Indicator - Island: 0  Group: 0
HUMAN OCCUPATION: Inhabited, large resort
  Population: 0    Density: 0.0 persons/sq. km
  Major Human Activities: tourism
HUMAN IMPACTS:

  Gross Domestic Product: $ 811 per capita    Economic Pressure Indicator: 0
DATA RELIABILITY:    Data Rel. Indicator: 1
CONSERVATION IMPORTANCE INDEX   CI-Terrestrial: 9   Moderate
CI-Marine: 5   Moderate
REFERENCES:

Last updated: 11/09/88

Ngerukuid (Seventy Islands, Ngerukewid, Orukuizu)    [1312]
   Group: Archipelago: Palau Islands
   Country: Palau   Region: Oceania 13
Lat: 7.18º N   Long : 134.28º E
Area: 0.9 sq. km   Altitude: 80 m
Submerged area <100 m: 2 sq. km   Reef area: 0 sq. km   Lagoon area: 0 sq. km
Depth to nearest land: 3000 m
Nearest island: 7 km   group: 850 km
Nearest continent: Asia    Distance: 2500 km    Isolation Index: 82
ISLAND TYPE: 37 small raised coral      Natural Protection Indicator: 1
GEOLOGY/SOILS:
Steep raised coral islets usually undercut at the waterline, ranging in size from 0.1 to 48.5 ha
CLIMATE: wet  tropical 
CATASTROPHIC THREATS: cyclones
   Threat Indicator: 1
ECOSYSTEMS:           Number of Ecosystems - Terrestrial: 4    Marine: 1
Limestone rain forest inland, thickets on vertical cliffs, coastal strand forest and scrub on narrow beaches, two small areas of mangrove (Rhizophora), fringing coral reefs, undercut shores.   Mangroves
   Percent of land: Forested: 90%  Developed: 0%  Degraded: 0%
   Percent shoreline: Coral Reef: 99%  Mangrove: -9%
SPECIES NUMBERS: Total Endemic Threatened (EVRI)
Plants  0 0 0
Butterflies 0 0 0
Land snails 0 0 0
Rept/Amphib 7 0 0
Land birds 17 0 0
Mammals 2 0 0

SPECIES OF CONSERVATION INTEREST:
Plants: endemic palms Reptiles/Amphibians: Platymantis pelewensis (Belau Frog) group endemic 4 skinks 2 land snakes and 1 sea snake Birds: 17 land birds, 11 seabirds Pyrroglaux (Otus) podargina (Belau Scops Owl) group endemic (unconfirmed, not detected in 1988 survey) Megapodius laperouse (Micronesian Megapode) endemic to Marianas and Belau, Rare, 50-80 (1988) Mammals: 2 bats Dugong dugon (Dugong) Vulnerable (RDB) reported extirpated 1987   Species Richness Indicator - Terrestrial: 1  Marine: 5
ENDEMISM: Terrestrial:   Terrestrial Endemism Indicator - Island: 0  Group: 2
  Marine endemic species: 0   Marine Endemism Indicator - Island: 0  Group: 0
SPECIAL FEATURES :   Special Features Indicator - Terrestrial: 2   Marine: 0
  some seabird breeding, turtle nesting area
INVASIVE SPECIES:     Invasive Species Indicator: 1
  cockatoo, no introduced rodents
Cacatua galerita (Greater Sulphur-crested Cockatoo) kills endemic palms by feeding on the hearts
HUMAN OCCUPATION: Uninhabited
  Population: 0    Density: 0.0 persons/sq. km
  Major Human Activities: tourism, illegal poaching, dynamiting for fish
HUMAN IMPACTS:

Conservation support: tenure, government support, legislation
PROTECTED AREAS:    Protected Area Coverage Indicators - Terrestrial: 7  Marine: 7
  Number: 1   Area: Terrestrial: 0.9 sq. km    Marine: 2 sq. km
Ngerekuid Islands Wildlife Preserve (87.3 ha land, 259 ha total) Created 1956. Listed in 1987 on World Register of Threatened Parks and Protected Areas because of dynamiting of reefs, extirpation of dugong, and poaching of turtle eggs and coconut crabs. Management plan in preparation. Suggested for World Heritage status.
DATA RELIABILITY: good    Data Rel. Indicator: 3
HUMAN IMPACT INDEX     HI: 1
CONSERVATION IMPORTANCE INDEX   CI-Terrestrial: 18   High
CI-Marine: 13   Moderate
REFERENCES:
Wiles, G.J. and Conry, P.J. 1990. Terrestrial vertebrates of the Ngerukewid Islands Wildlife Preserve, Palau Islands. Micronesica 23(1):41-66.
Last updated: 05/08/90

Oreor (Koror)    [1309]
   Group: Archipelago: Palau Islands
   Country: Palau   Region: Oceania 13
Lat: 7.35º N   Long : 134.52º E
Area: 9.3 sq. km   Altitude: ? m
Depth to nearest land: 3000 m
Nearest island: 2 km   group: 850 km
Nearest continent: Asia    Distance: 2500 km    Isolation Index: 81
ISLAND TYPE: volcanic and raised coral      Natural Protection Indicator: 0
GEOLOGY/SOILS:
Volcanic to west and raised coral to east.
CATASTROPHIC THREATS: cyclones
   Threat Indicator: 1
ECOSYSTEMS:           Number of Ecosystems - Terrestrial: 5    Marine: 5
Lowland rain forest, mangroves, coral reefs and lagoons.
SPECIES OF CONSERVATION INTEREST:
Birds: Megapodius laperouse senex, group endemic subspecies, Rare (RDB), locally rare Gallicolumba canifrons (Belau Ground Dove) group endemic Pyrroglaux podargina (Belau Scops Owl) group endemic Caloenas nicobarica pelewensis (Belau Nicobar Pigeon) group endemic subspecies, Endangered (RDB), small flock observed (1980).   Species Richness Indicator - Terrestrial: 2  Marine: 3
ENDEMISM: Terrestrial:   Terrestrial Endemism Indicator - Island: 0  Group: 2
  Marine endemic species: 0   Marine Endemism Indicator - Island: 0  Group: 0
HUMAN OCCUPATION: Inhabited, capital and urban center
  Population: 7685 (1980)   Density: 826.3 persons/sq. km
  Growth Rate: -0.3%/yr   Decreasing
  Major Human Activities: government, tourism, aquaculture
HUMAN IMPACTS:
Japanese town of 20,000 destroyed in W.W.II; capital of Belau with some urbanization.
  Habitat:   Urban Pop: 7000  Urban Indicator: 8
  Accessibility: port
  Percent population in agr/mining/fishing: 10%   Human Threat Indicator: 0
  Gross Domestic Product: $ 811 per capita    Economic Pressure Indicator: 0
DATA RELIABILITY:    Data Rel. Indicator: 1
HUMAN IMPACT INDEX     HI: 16
CONSERVATION IMPORTANCE INDEX   CI-Terrestrial: 8   Moderate
CI-Marine: 10   Moderate
REFERENCES:

Last updated: 11/09/88

Sonsorol     [1315]
   Group:
   Country: Palau   Region: Oceania 13
Lat: 5.33º N   Long : 132.22º E
Area: 1.9 sq. km   Altitude: ? m
Depth to nearest land: 3000 m
Nearest island: 100 km   group: 500 km
Nearest continent: Asia    Distance: 2600 km    Isolation Index: 83
ISLAND TYPE: low coral islands on reef      Natural Protection Indicator: 0
CATASTROPHIC THREATS: cyclones
   Threat Indicator: 1
ECOSYSTEMS:           Number of Ecosystems - Terrestrial: 2
  Species Richness Indicator - Terrestrial: 1  Marine: 3
HUMAN OCCUPATION: Inhabited
  Population: 79 (1980)   Density: 41.6 persons/sq. km
  Growth Rate: -0.3%/yr   Decreasing
  Major Human Activities: subsistence agriculture, fishing
  Percent population in agr/mining/fishing: 90%   Human Threat Indicator: 3
  Gross Domestic Product: $ 811 per capita    Economic Pressure Indicator: 0
DATA RELIABILITY:    Data Rel. Indicator: 1
HUMAN IMPACT INDEX     HI: 3
CONSERVATION IMPORTANCE INDEX   CI-Terrestrial: 3   Low
CI-Marine: 7   Moderate
Last updated: 11/09/88

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