The Admiralty Islands lowland rain forests cover the volcanic Admiralty Islands of Papua New Guinea, which make up Manus Province in the country's Islands Region, an isolated archipelago lying roughly 280 kilometers off the northern coast of New Guinea. Lowland tropical rainforest dominates the larger islands, with characteristic canopy trees including Calophyllum, Barringtonia, and Terminalia, fringed by coastal shrub zones of Sararanga and Pandanus. The climate is warm and wet year-round, with daytime highs near 30 to 32 degrees Celsius, cooler nights, and about 3,400 millimeters of annual rainfall that peaks during the June-to-August wet season. Long isolation from any landmass has produced notable endemism, including several endemic birds such as the superb pitta and Manus fantail, the Admiralty flying-fox, and the emerald green snail, the first land snail listed as vulnerable by the IUCN. Commercial logging and forest conversion now place heavy pressure on the remaining forests, especially in the interior of Manus Island.
Marker placed inside the RESOLVE 2017 polygon at 2.1°S, 146.9°E.
Climate snapshot for this ecoregion
°C
°F
Current zone range (2011–2040)
13b
Plotwright
CHELSA-derived typical winter month at this ecoregion's bbox grid.
Projected (2041–2070)
13b
Plotwright
Where the CHELSA models say the typical winter month is heading.
Average warming this ecoregion is on track for: +2.8°F by mid-century. SSP3-7.0 (current trajectory) · CHELSA v2.1 bio06 sampled across 10 of 10 points within this ecoregion's bounding box.
At a glance
Dominant biome
Tropical & Subtropical Moist Broadleaf Forests
Realm
Australasia
Approximate area
814 sq mi
Conservation tier
Nature Could Reach Half Protected (Dinerstein NNH 2)
About the tropical & subtropical moist broadleaf forests biome
Warm, wet, highly productive forests — including tropical rainforests — with closed canopies, near year-round growing seasons, and the richest terrestrial biodiversity on Earth. Low seasonality and high rainfall sustain dense, layered vegetation from canopy to forest floor.
Catalog plants suited to this ecoregion
No catalog plants intersect this ecoregion's zone range. As the catalog grows to cover this region's climate band, suggestions will surface here.
Collections for this ecoregion
No curated collection's plants all fit this ecoregion's zone range. We surface a collection only when every member would grow here — partial fits get filtered out rather than mislead. As the catalog and the curated set both grow, this section will fill in.
Related ecoregions
Other tropical & subtropical moist broadleaf forests ecoregions to explore: