🔀 For Everyone

Sabah Biodiversity 2026 — Species, Endemics & Conservation

Q: What is the Heart of Borneo initiative?

The Heart of Borneo is a tri-national conservation agreement (2007) signed by Brunei, Indonesia, and Malaysia to protect 22 million hectares of forest across Borneo. Sabah is a signatory and has committed land within this zone. The goal is to maintain forest connectivity, protect watersheds, and preserve biodiversity across borders.

Q: What is the most endangered species in Sabah?

The Sumatran rhino is critically endangered — functionally extinct in Sabah after the last female (Iman) died in November 2019. Only a handful remain in Indonesia. Other critically endangered species include the Bornean orangutan (~11,000 in Sabah, 80% in protected forests) and the Malayan pangolin (world's most trafficked mammal).

Q: Where is the best place to see Sabah's biodiversity?

For maximum biodiversity: Danum Valley Conservation Area (lowland rainforest, 340 bird species), Kinabalu Park (alpine flora, endemics), Lower Kinabatangan River (elephants, proboscis monkeys, 203 bird species), and Tun Sakaran Marine Park (528 fish species, 255 coral species). Book licensed guides; wildlife is most active at dawn and dusk.

Q: Are there citizen science programs for biodiversity monitoring?

Yes. Organizations like HUTAN, Danau Girang Field Centre, and Sabah Wildlife Department run community-based conservation and monitoring programs. Visitors and resident scientists contribute to long-term biodiversity tracking and habitat protection. Research stations like Danum Valley welcome visiting researchers.

Last updated: 11 April 2026

Lush Borneo rainforest canopy with diverse vegetation and tropical light

ℹ️ The quick answer

Sabah is a global biodiversity hotspot with 6,000+ plant species, 680+ birds, 210+ mammals. The state harbours 100+ endemic species found nowhere else on Earth. Forest cover is ~50% of remaining state area; 30% is totally protected (30% TPA target achieved Feb 2026). Threats include deforestation, illegal wildlife trade, and climate change.

🌿

6,000+

Plant species

vascular plants

🦅

680+

Bird species

Borneo endemics 52–66

🦁

210+

Mammal species

2/3 conservation-concern

⭐

100+

Endemic species

found nowhere else

🏞️

30%

Protected land

2.23M hectares TPA

🌳

~50%

Forest cover

of state area (~3.7M ha)

Species Counts by Taxonomy in Sabah

Sabah’s biodiversity spans all major taxa. Fish and invertebrates dominate marine ecosystems; plants and birds lead terrestrial diversity.

Source: Sabah Wildlife Dept, IUCN, research institutions

Sabah\u2019s Biodiversity Hotspot Status

Sabah is recognized as one of the world\u2019s most biodiverse regions — a hotspot where evolution, isolation on Borneo, and tropical climate have created exceptional endemism and species richness. Sabah alone contains roughly one-third of Borneo\u2019s total plant species despite occupying only one-third of the island\u2019s land area.

This concentration of biodiversity is driven by:

Tropical rainforests: Ancient, undisturbed ecosystems spanning from sea-level to alpine zones.
Elevation gradients: Mount Kinabalu and other mountains create distinct ecological zones — each with specialized species.
Coral Triangle edge: Marine biodiversity rivaling terrestrial forests — 600+ coral species, 2,500+ reef fish.
Isolation: Borneo\u2019s separation from mainland Asia has allowed millions of years of endemic speciation.

Flora

6,000+ vascular plant species are documented in Sabah. Highlights include:

Mount Kinabalu: 4,000+ species on one mountain — including 800+ orchids (Borneo total: 1,500+), 500+ ferns, 50+ pitcher plants (Nepenthes), and 24 rhododendron species (5 endemic to Kinabalu alone).
Lowland dipterocarp forest: Giant hardwood trees (dipterocarps) over 60m tall. Dominated the pre-logging landscape; now heavily reduced.
Rafflesia: 6 species in Sabah (R. keithii, R. pricei, etc.). World\u2019s largest flower (up to 1m diameter). Parasitic, rare, increasingly threatened.
Mangroves: Coastal ecosystems now under pressure from development and sea-level rise.

Proboscis monkey with distinctive long nose in mangrove tree — Proboscis monkey — uniquely Bornean, ~5,900 in Sabah

Rare Rafflesia flower in full bloom on forest floor — Rafflesia — world's largest flower, critically endangered

Pygmy elephant wading in river with thick forest in background — Pygmy elephant — ~1,500 in Sabah, endangered

Birds

680+ bird species are recorded in Sabah. Highlights:

Borneo endemics: 52–66 species (depending on taxonomy) found only on the island. Examples: Kinabalu Serpent-Eagle, Scarlet-rumped Trogon, Blue-headed Pitta.
Hornbills: 9 species, including the iconic Rhinoceros Hornbill. Massive casqued beaks; monogamous; sighted in pairs year-round.
Kingfishers, pittas, babblers: High diversity of forest birds; numerous endemic subspecies.
Best locations: Kinabalu Park (alpine endemics), Danum Valley (340 species), Lower Kinabatangan (203 species).

Marine Biodiversity

Conservation Status of Key Sabah Species

Many of Sabah’s iconic species are under threat. Only a small fraction are stable (Least Concern).

Source: IUCN Red List assessments, Sabah Wildlife Dept

Sabah\u2019s marine realm sits at the edge of the Coral Triangle, the world\u2019s epicenter of marine biodiversity:

Coral species: 600+ species — Tun Sakaran Marine Park alone has 255 coral species.
Fish diversity: 2,500+ reef fish species in Sabah waters. Tun Sakaran: 528 species. Sipadan waters: 3,000+ species.
Sea turtles: Green turtle, Hawksbill — 13 nesting beaches across Sabah. Turtle Islands Park is Malaysia\u2019s largest sea turtle rookery.
Whale sharks: World\u2019s largest fish; seasonal visitors (peak Apr–May) around Sipadan and Semporna.
Sharks & rays: 68 shark species, manta rays, eagle rays.

Habitat Types & Conservation

Sabah Habitat Types by Area Coverage

Lowland forest (historically the most biodiverse) has been most heavily cleared. Mountain and wetland habitats retain higher percentages.

Source: Sabah Forestry Department, habitat mapping 2024

Conservation Status

⚠️ Habitat loss is the primary threat

Over 50% of Borneo\u2019s original forest has been cleared. Sabah\u2019s forest cover has declined from ~87% (1970s) to ~50% today. The remaining forests face continued pressure from logging, plantations, and development. Protected areas (30% TPA) are critical refugia, but fragmentation isolates wildlife populations.

Key conservation outcomes:

30% TPA achieved (Feb 2026): Sabah is the first Malaysian state to reach the 30% totally protected area target — a major conservation milestone protecting 2.23 million hectares.
Protected area network: Kinabalu Park (UNESCO World Heritage + Biosphere + Geopark), Crocker Range, Danum Valley, Maliau Basin, Lower Kinabatangan Ramsar site, marine parks.
Wildlife corridors: Ulu Segama Malua (UNESCO conservation model) connects habitat fragments, allowing species migration and genetic exchange.
Research & monitoring: Danau Girang Field Centre, Danum Valley Research Station, and HUTAN conduct long-term population monitoring.
Anti-poaching efforts: Enforcement against illegal wildlife trade of orangutans, pangolins, rhinos, and bird species — though demand remains high globally.

Frequently asked questions

Q How does Sabah compare to Borneo overall in biodiversity?

Sabah occupies the northern third of Borneo and holds a disproportionately high share of Borneo's total biodiversity. Borneo has ~15,000 plant species; Sabah is home to an estimated 6,000+. Borneo has 44 endemic mammals; Sabah has most of them. Mount Kinabalu alone contains 4,000+ vascular plant species — roughly one-third of Borneo's total flora.

Q What is the Heart of Borneo initiative?

The Heart of Borneo is a tri-national conservation agreement (2007) signed by Brunei, Indonesia, and Malaysia to protect 22 million hectares of forest across Borneo. Sabah is a signatory and has committed land within this zone. The goal is to maintain forest connectivity, protect watersheds, and preserve biodiversity across borders.

Q What is the most endangered species in Sabah?

The Sumatran rhino is critically endangered — functionally extinct in Sabah after the last female (Iman) died in November 2019. Only a handful remain in Indonesia. Other critically endangered species include the Bornean orangutan (~11,000 in Sabah, 80% in protected forests) and the Malayan pangolin (world's most trafficked mammal).

Q Where is the best place to see Sabah's biodiversity?

For maximum biodiversity: Danum Valley Conservation Area (lowland rainforest, 340 bird species), Kinabalu Park (alpine flora, endemics), Lower Kinabatangan River (elephants, proboscis monkeys, 203 bird species), and Tun Sakaran Marine Park (528 fish species, 255 coral species). Book licensed guides; wildlife is most active at dawn and dusk.

Q Are there citizen science programs for biodiversity monitoring?

Yes. Organizations like HUTAN, Danau Girang Field Centre, and Sabah Wildlife Department run community-based conservation and monitoring programs. Visitors and resident scientists contribute to long-term biodiversity tracking and habitat protection. Research stations like Danum Valley welcome visiting researchers.

Q How is climate change threatening Sabah's biodiversity?

Rising temperatures are shifting species ranges upward (alpine species have nowhere higher to go). Erratic rainfall patterns stress water-dependent species. Coral bleaching events are increasing. Forest droughts trigger fires. Mangrove loss from sea-level rise threatens coastal ecosystems. Protected areas and wildlife corridors are critical buffers.

Q How does Sabah combat illegal wildlife trade?

Sabah Wildlife Department, ENFORCEMENT units, and international partners (CITES, Interpol) work to prevent poaching and trafficking of orangutans, pangolins, rhinos, and bird species. Community awareness, ranger patrols, and legal penalties deter trafficking. International demand (pets, traditional medicine) remains the core driver.

Sources & References 6 sources

Last verified: 11 April 2026