Borneo

By Rhett A. Butler [Last update June 29, 2020]



Facts on Borneo

Land Areas: 743,330 square kilometers (287,000 square miles, 74.33 million hectares, or 183.68 million acres)
Human Population: 17.7 million, of which 17% or 2.2 million is indigenous Dayak
Countries:

  • Malaysia (states of Sabah and Sarawak) (26.7%)
  • Brunei (Sultanate) (0.6%)
  • Indonesia (Kalimantan - West, Central, South, and East) (72.6%)
Biodiversity: 15,000 plant species, more than 1400 amphibians, birds, fish, mammals, and reptiles, unknown insects

Satellite image of Borneo island

An overview on Borneo

Borneo, the third largest island in the world, was once covered with dense rainforests. With swampy coastal areas fringed with mangrove forests and a mountainous interior, much of the terrain was virtually impassable and unexplored. Headhunters ruled the remote parts of the island until a century ago.

In the 1980s and 1990s Borneo underwent a remarkable transition. Its forests were leveled at a rate unparalleled in human history. Borneo's rainforests went to industrialized countries like Japan and the United States in the form of garden furniture, paper pulp and chopsticks. Initially most of the timber was taken from the Malaysian part of the island in the northern states of Sabah and Sarawak. Later forests in the southern part of Borneo, an area belonging to Indonesia and known as Kalimantan, became the primary source for tropical timber. Today the forests of Borneo are but a shadow of those of legend and those that remain are rapidly being converted to industrial oil palm and timber plantations.

Oil palm is the most productive oil seed in the world. A single hectare of oil palm may yield 5,000 kilograms of crude oil, or nearly 6,000 liters of crude, making the crop remarkably profitable when grown in large plantations. As such, vast swathes of land are being converted for oil palm plantations. Oil palm cultivation has expanded in Indonesia from 600,000 hectares in 1985 to more than 8.6 million hectares by 2015, according to U.N. FAOSTAT.

Borneo, especially Kalimantan, has also been heavily affect by peat fires set for land-clearing purposes. Millions of hectares of peat, scrub, degraded forest, and rainforest have gone up in flames over the past 30 years.

Bornean orangutan in Central Kalimantan, Indonesia. Photo by Rhett A. Butler.

Borneo's Geography

Borneo is the third largest island in the world, covering an area of 743,330 square kilometers (287,000 square miles), or a little more than the twice the size of Germany. Politically, the island is divided between Indonesia, Malaysia and Brunei. Indonesian Borneo is known as Kalimantan, while Malaysian Borneo is known as East Malaysia. The name Borneo itself is a Western reference first used by the Dutch during their colonial rule of the island.

Geographically the island is divided by central highlands that run diagonally from Sabah state (Malaysia) in northeastern Borneo to southwestern Borneo, roughly forming the border between West and Central Kalimantan (Indonesia). The range is not volcanic — the whole of Borneo has only a single extinct volcano — but does feature the highest mountain in Southeast Asia: Mount Kinabalu in Sabah, which reaches 4,095 meters (13,435 feet).

Rainforest in Central Kalimantan, near the Indonesia-Malaysia border. Photo by Rhett A. Butler.

BORNEO'S FORESTS

Borneo's forests are some of the most biodiverse on the planet, home to more than 230 species of mammals (44 of which are endemic), 420 resident birds (37 endemic), 100 amphibians, 394 fish (19 endemic), and 15,000 plants (6,000 endemic). Surveys have found more than 700 species of trees in a 10 hectare plot — a number equal to the total number of trees in Canada and the United States combined.

Several distinct ecosystems are found across Borneo. These are reviewed in WWF's "Borneo: Treasure Island at Risk" report (2005).

Mangroves

Mangroves are found in estuaries and coastal regions. These are estimated to cover around 1 million hectares in Borneo, a small fraction of their original extent due to conversion for agriculture.

Peat Swamp Forests

Peat swamp forests are the dominant form of remaining lowland forest in Borneo today. These swamp forests appear in places where dead vegetation becomes waterlogged and, too wet to decompose, accumulates as peat.

Tropical peatlands, which form over hundreds of years, are giant stores of carbon. Draining and/or burning these areas releases large amounts of carbon dioxide into the atmosphere.

Drained peatlands are also highly susceptible to combustion. Under dry el Niño conditions, which affect Southeast Asia periodically, thousands of fires can burn across Kalimantan, causing large-scale air pollution known regionally as "haze".

Fires in peat swamps are difficult to extinguish because they can burn below ground virtually undetected.

Peat forest that's been cleared and burned in West Kalimantan. Photo by Rhett A. Butler.

Montane Forests

Montane forests are generally found at an elevation from 900 meters to 3300 meters in Borneo. Trees in these forests are typically shorter than those of lowland forest, resulting in a less-developed forest canopy. Langner and Siegert (2005) estimate that in 2002 about 70 percent (1.6 million ha) of Borneo's original montane forests (2.27 million hectares) remained.

Cloud forests are a type of montane forests.

Heath Forests

Heath or kerangas forest are found on well-drained, sandy soils that are extremely nutrient-poor ("kerangas" is the indigenous Iban word for "land that will not grow rice"). These forests are characterized by certain tree species tolerant of the poor, acidic soil conditions and are considerably "stunted" in comparison with typical rainforests. Heath forests are also less biodiverse the other tropical plant communities. MacKinnon et al. (1997) estimate that Borneo was once covered with by 6,688,200 hectares of heath forests. Today this area is so diminished the World Bank estimates that almost no heath forests will remain in Borneo by 2010.

Dipterocarp Forests

Lowland Dipterocarp forests are the most biodiverse and most threatened forests in Borneo. These giant trees, often exceeding 45 meters in height, are the most valuable source of timber in Borneo and have been heavily logged since the 1970s. Langner and Siegert (2005) estimated that just under 30 million hectares of lowland Dipterocarp forest remained in Borneo in 2002.

The
prevalence of Dipterocarps gives Borneo's forests an unusual dynamic that is tightly linked with the ocean-atmosphere phenomenon called the El Niño-Southern Oscillation (also known as ENSO or "El Niño"). According to biologist Lisa Curran, Dipterocarp reproduction is inextricably tied to the arrival of El Niño, with 80-93% of species synchronizing their flowering to the onset of the dry weather conditions, which traditionally occur on a roughly 4 year basis. During a "Dipterocarp year" in Kalimantan, the canopy bursts into color as countless emergent Dipterocarp trees — each of which may have 4 million flowers — bloom during a six-week period, a strategy that intermittently starves and swamps seed predators so that at least some seeds survive to germination.

The mass blooming and subsequent fruiting — which has been known to synchronize over an area of 150 million hectares (370 million acres) and involve 1870 species — is a boon to seed predators, including wild boar, the keystone seed predator in the ecosystem. Seeds and wild boar are so prevalent during these intervals that local populations have long viewed el Niño events as times of plenty, collecting Illipe nuts for export and gorging on pork. The relationship has lasted for as long as humans have inhabited Borneo and is ingrained in the cultures of people ranging from the tribes of the forested interior to coastal traders.

In recent years however, the system has been breaking down due to land-use change. Curran says that intensive logging has taken a heavy toll on this reproductive cycle. Curran found that seed production fell from 175 pounds per acre in 1991 to 16.5 pounds per acre in 1998, even though it was a one of the strongest El Niño years on record. It appears that logging has reduced the local density and biomass of mature trees below some critical threshold that limits masting.

Fire is also a factor. A sharp increase in the incidence of fires in an ecosystem that is accustomed to fire has exacerbated drought stress and forest die-off. Instead of el Niño years being times of plenty, they are now plagued by raging infernos and severe air pollution.

"El Niño has become the great destroyer instead of the great provider," said Curran. Land use change has broken the once tightly linked cycle of the ecosystem.

The impact extends well beyond Borneo with annual fires driving widespread pollution that can spread as far as Australia, China, and India. The fires release massive amounts of carbon dioxide, especially when Borneo's peat forests burn. With over 500 tons of carbon per hectare — one of the highest levels of biomass on the planet — these ecosystems can contribute up to 2 billion tons of carbon dioxide to the atmosphere in bad fire years, making Indonesia the third largest greenhouse gas polluter, far larger than its emissions from fossil fuels. Some scientists fear that fires and climate change could be a positive feedback loop that only worsens conditions, producing ever drier climate, more frequent fires, and higher carbon emissions.

Deforestation in Borneo

Deforestation in Borneo was historically low due to infertile soils (relative to surrounding islands), unfavorable climate, and the presence of disease. Deforestation began in earnest during the mid-twentieth century with the establishment of rubber plantations, though these had a limited impact. Industrial logging rose in the 1970s as Malaysia depleted its peninsular forests, and former Indonesian strongman Suharto distributed large tracts of forest to cement political relationships with army generals. Logging expanded significantly in the 1980s, with logging roads providing access to remote lands for settlers and developers. At the same time, the Indonesian government's transmigration program was in full swing, sending more than 18,000 people per year during the decade to settle in Kalimantan. These transmigrants, mostly young landless poor from the crowded central islands of Java and Bali, were resettled at government expense on lands that were often inadequate for traditional farming. Unable to support themselves with subsistence agriculture, many of these people went to work for logging companies.

Primary forest Tree cover
Country 2001 2020 2002-2019 loss (% loss) 2001 2020 2002-2019 loss (% loss)
Brunei 431,455417,72213,733 (3.2%)528,094512,98026,198 ( 5.0%)
Indonesia 28,903,32024,937,5543,965,766 (13.7%)49,001,19840,860,09910,744,758 ( 21.9%)
Malaysia 10,611,8158,708,7371,903,078 (17.9%)18,164,11815,243,9714,403,860 ( 24.2%)

 

LOGGING & TRANSMIGRATION

Logging in Borneo in the 1980s and 1990s was some of the most intensive the world has ever seen, with 60-240 cubic meters of wood being harvested per hectare versus 23 cubic meters per hectare in the Amazon. According to Curran, more timber exported was from Borneo during that time than from Latin America and Africa combined. In Kalimantan, some 80% of lowlands went to timber concessions, including most of its mangrove forests. More on logging.

OIL PALM

At the same time that valuable timber became increasingly scarce, interest in oil palm plantations began to spread in Borneo. Though it was first planted in Indonesia in 1848, it wasn't until the mid-1990s that oil palm cultivation really started to accelerate. In Malaysia, today the world's largest producer of palm oil, oil palm plantations grew from 60,000 hectares in 1960 to more than 3 million hectares in 2001. In 2004, 30% of these of these were located in Sabah, which has ideal growing conditions for the plant, and 13% were in Sarawak. However, because virtually all suitable land is used in Peninsular Malaysia, expansion is expected mostly to occur in Malaysian Borneo and, to a greater extent, Kalimantan. Oil palm cultivation has increased from 186,744 hectares in Sabah and Sarawak in 1984 to 1,673,721 hectares at the close of 2003.

In Kalimantan, oil palm has expanded even faster: from 13,140 hectares in 1984 to nearly one million hectares at the end of 2003. While much of this new land brought under cultivation is less than ideal for oil palm, the crop's low maintenance, combined with growing demand and lack of other viable economic options in the region, make it a low-risk investment for large estate owners. Large plantations owners are aided by subsidies that include crude processing facilities and roads.

Palm oil is derived from the plant's fruit, which grow in clusters that may weigh 40-50 kilograms. A hundred kilograms of oil seeds typically produce 20 kilograms of oil, while a single hectare of oil palm may yield 5,000 kilograms of crude oil, or nearly 6,000 liters of crude oil that can be used in biodiesel production.

Related articles
Why oil palm is replacing tropical rainforests | Social impact of oil palm in Borneo | Greening the world with palm oil

FIRES

Dense tropical forests in Borneo have historically not been prone to fires. But that has changed since the early 1980s with increased degradation of forests and peatlands, which has created conditions that exacerbate fire risk. When fires are set for land-clearing purposes, they can quickly spread out-of-control into adjacent areas, including healthy forests. Research has indicated that industrial plantation development on peatlands is one of the most important drivers of fire in Borneo.

Fires during the el Niño on 1997-1998 captured the world's attention. These burned some 9.7 million hectares and caused estimated economic damage of more than 9 billion dollars. Up to 2.5 gigatons of CO2 was released into the atmosphere. Fires have continued to burn on an increasingly frequent basis since then, usually set to clear land for oil palm plantations.

A 2005 report from WWF explained why fires are so damaging in Borneo:

    While fires play an important role in forest ecosystems in many areas of the world, tropical rainforests have by and large been spared, prior the rise of widespread unsustainable management practices. Normally, tropical rainforests will not burn, due to dampness. The dense canopy usually keeps everything underneath it humid, even in times of drought. In addition, biological material decomposes very quickly in the damp climate. As a result, that very little flammable material covers the ground. The trees in wet tropical climate zones are not adapted to forest fires. They have a thin bark, compared to the much thicker, fire resistant, bark of trees in monsoon or more temperate climates.

POACHING

Poaching is a significant issue for wildlife in Borneo. A wide range of species are targeted songbirds for pet markets, game species and orangutans for bushmeat, elephants as crop pests, pangolins and sunbar for traditional Chinese medicine.

Related articles
Borneo Wildlife

CONSERVATION

Conservation areas have had mixed success in Borneo. For example, protected areas in Sabah, a state in Malaysian Borneo, have generally fared better than reserves in Indonesia, where illegal logging, encroachment, and poaching can be frequent.

A few other examples:

  • Between 1985 and 2001, Kalimantan's protected lowland forests declined by about 56%
  • Indonesia's Kutai National Park was established in 1936 as a 306,000 hectare preserve, but suffered from reductions in extent, large-scale illegal logging, and encroachment. Fires in 1997-1998 burned 92% of the park's area.
  • 70% of Gunung Palung National Park's lowland buffer zone was deforested in just four years, 1998-2002. During that period, nearly 40% of the park's lowland forest was cleared.

Sabah
Of Sabah's 7.37 million hectares of land, 60 percent is zoned for forest to the State Environmental Conservation Department. 3.6 million hectares of this forested area (known as the Permanent Forest Estate) can be broken down as follows:

Area (ha)ClassificationWhat it means
342,000Class I: ProtectionWatershed and other "functional" forests. Cannot be logged
2,685,000Class II: CommercialForests that can be exploited
7,000Class III DomesticForests that can be logged for local consumption
21,000Class IV: AmenityRecreational forests, often degraded
316,000Class V: MangroveCan be harvested
90,000Class VI: Virgin JungleConserved for scientific purposes
133,000Class VII: WildlifeConserved as wildlife habitat


According to these figures, 16 percent of Sabah's total forest area is under some form of protection.

Sarawak
According to the state government, about two-thirds of Sarawak's 8.22 million hectares are covered with natural forest. The government says it seeks to protect about 8 percent of the state's natural forests with the rest of the land, in equal parts, devoted to commercial forest and agriculture.

Kalimantan
Almost all forests in Kalimantan are owned by the state. In recent years centralization means that forests once controlled by the national government are now controlled at the district level. On paper, forests have been mapped and allocated for various uses, but reality bears little resemblance to the actual situation, according to WWF, which notes "the actual size and state of Indonesia's remaining forests are difficult to establish from official statistics."

Officially, Kalimantan is broken down into the following divisions (WWF):

ClassificationWhat it meansArea (M ha) Conservation ForestProtected4.6 Protection ForestForests that serve environmental functions6.4 Production ForestTimber concessions14.2 Limited Production Forest Gazetted for low-intensity logging. Often located on steep slopes.10.6 Conversion Forest Designated for permanent clearance and conversion, usually for agricultural purposes5.1


Thus on paper about 11 million hectares of forest are under some form of protection in Kalimantan.

In areas that have been set aside as "production forest" there are three types of industrial timber plantations: Hutan Tanaman Industri (HTI) pertukangan for hardwoods, HTI kayu energy for fuelwood and charcoal, and HTI kayu serat for pulp and paper. The system was reformed in 1999 under the Indonesian decentralization policy and licenses are now issued at the district level.

THE PROBLEMS

In a 2005 report, WWF argued there are four big direct threats to Borneo's forests: land conversion, illegal logging, poor forest management, and forest fires. Secondary threats include large-scale industrial projects (roads and hydroelectric projects), hunting, and the climate of corruption which permeates virtually all levels of government in Kalimantan.

A fundamental problem is that "development" in Borneo is driven by extractive industries.

SOLUTIONS

The causes of deforestation in Borneo are not complex; but the solutions are. The combination of large-scale deforestation in the lowlands and the importation of millions of people through poorly-executed transmigration programs have made it challenging to a imagine a future where many of Borneo's most biologically diverse forests survive into the next century.

If Borneo's lowland forests are to be saved, it will require broad recognition of the value of forests as healthy and productive ecosystems. This recognition needs to be followed by the political will to make tough decisions, including challenging business-as-usual interests that work to destroy forests, accounting for the true costs of environmental degradation, and creating financial incentives for local people to shift behavior.

Among provinces and states on Borneo, Sabah is arguably the furthest along in integrating conservation goals into high-level policy planning. Sabah has the highest proportion of forest under some form of protection and the government is starting to work to encourage a knowledge-based services economy over an extractive one.

BORNEO RAINFOREST PHOTOS


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REFERENCES


  • WWF Germany, Borneo: Treasure Island at Risk, June 2005 [pdf, 773 KB]
  • Curran L.M., personal communication, January 2007
  • Curran L.M., Trigg S.N., McDonald A.K., Astiani D., Hardiono Y.M., Siregar P., Caniago E. and Kasischke E.: Lowland Forest Loss in
  • Protected Areas of Indonesian Borneo; Science, 13 February 2004; VOL303: 1000-1003
  • Davis W., Mackenzie I., Kennedy S.: Nomads of the Dawn, Pomegranate Artbooks, 1995
  • Environmental Investigation Agency (EIA) and Telapak: Timber Traffickers: How Malaysia and Singapore are reaping a profit from the illegal destruction of Indonesia's tropical forests; May 2003
  • Environmental Investigation Agency 2004, Profiting from Plunder: How Malaysia Smuggles Endangered Wood, https://www.eia-international.org...pdf
  • Fuller D.O, Jessup T.C and Salim, A.: Loss of Forest Cover in Kalimantan, Indonesia, since the 1997-1998 El Niño. Conservation Biology, pp.249-254 Volume 18, No1, February 2004
  • Global Forest Watch, Global Forest Watch Indonesia, World Resources Institute: The State of the Forest, Indonesia, 2002
  • Government of Sabah: https://www.sabah.gov.mv
  • Government of Sarawak: https://www.sarawak.gov.mv
  • Holmes, D.A.: Indonesia - Where have all the forests gone? Environment and Social Development East Asia and Pacific Region. World
  • Bank Discussion Paper. Written 2000, published June 2002 Protected Animals Smuggling Reaches $547.5m Annually; Jakarta Post: 28/3/2003
  • Langner A. and Siegert F.: Assessment of Rainforest Ecosystems in Borneo using MODIS satellite imagery. Remote Sensing Solutions GmbH & GeoBio Center of Ludwig-Maximilians-University Munich, in preparation, June 2005
  • MacKinnon K., Hatta G., Halim H. and Mangalik A.: The Ecology of Kalimantan; Oxford University Press, 1997
  • Sabah Forestry Department: Forests Resource in Sabah; https://www.sabah.gov.my/htan/data_1/a_toppage_main/frames.htm accessed February 2, 2007
  • Sarawak Forest Department: Permanent Forests Estate https://www.forestry.sarawak.gov.my/forweb/sfm/pfe.htm accessed February 2, 2007
  • Stibig H.J. and Malingreau J.P.: Forest Cover of Insular Southeast Asia Mapped from Recent Satellite Images of Coarse Spatial Resolution; Ambio Vol. 32 No 7, Nov. 2003, Royal Swedish Academy of Sciences, 2003
  • The World Bank: Indonesia: Environment and Natural Resource Management in a Time of Transition, February 2001
  • UNEP World Conservation Monitoring Centre: https://www.wcmc.org accessed February 2, 2007
  • WWF: Borneo's Lost World: Newly Discovered Species on Borneo; written by Pio D. and D'Cruz R. (ed) for WWF, April 2005
  • The World Bank Group: Transmigration in Indonesia: worldbank.org 1994, accessed Jan 27, 2007
  •  

    BORNEO RAINFOREST NEWS

    Local leaders in Indonesia make forest and peatland protection pledge (15 Jul 2021 14:20:19 +0000)
    - Nine districts across three islands in Indonesia have pledged to protect 50% of their forests, peatlands and other “important ecosystems” by 2030.
    - The pledge encompasses a total of 5.8 million hectares (14.3 million acres) of forest and 1.9 million hectares (4.7 million acres) of peat — a total area the size of South Carolina.
    - The declaration mirrors the 2018 Manokwari Declaration by the governors of Papua and West Papua provinces, who pledged to protect 70% of the forestland in those two provinces.

    NGOs call for alternative routes for Bornean road to avoid wildlife habitat (29 Jun 2021 12:29:18 +0000)
    - Coalition Humans Habitats Highways has urged authorities in the Malaysian state of Sabah to adopt alternative routes to a 13-kilometer (8-mile) stretch of the Pan Borneo Highway.
    - That particular stretch cuts through a protected forest reserve and overlaps extensively with heavily used elephant migration paths.
    - Experts say constructing the highway as currently planned would increase wildlife-vehicle collisions, including deadly accidents involving elephants, as well as human-elephant conflict.
    - It would also derail progress made by local community efforts encouraging humans and elephants to coexist in harmony.

    Malaysian council opens hearing into claims of timber certification flaws (17 Jun 2021 10:47:44 +0000)
    - For more than a year, Indigenous communities in Malaysian Borneo have been campaigning against timber conglomerate Samling’s certified-sustainable production plantations.
    - They allege the certification processes for the plantations, which overlap with their traditional territory, were flawed and carried out without proper community consent; Samling has denied the allegations.
    - The Malaysian Timber Certification Council last month launched a dispute resolution case between the two sides, giving the communities a chance to formally air their complaints.
    - The conflict comes as the local government works toward a 2022 goal to have all timber companies obtain sustainable forest management certification.

    ‘Listening to communities must go beyond ticking compliance boxes’, says Peter Kallang, a Kenyah leader (09 Jun 2021 15:51:18 +0000)
    - The Malaysian state of Sarawak was until recently home to some of the last nomadic peoples of Borneo, who roamed its wild and rich rainforests as they had done since time immemorial. Starting in the early 1980s, industrial logging companies moved deep into Sarawak’s hinterland, tearing down forests, forcing forest peoples from their traditional lands, and laying the groundwork for large-scale conversion of biodiverse ecosystems into monoculture plantations.
    - Sarawak’s Indigenous peoples put up resistance against these state-backed incursions into their traditional territories. One of the most dramatic outcomes of these efforts came in 2016, when the Chief Minister of Sarawak cancelled the Baram mega-dam project.
    - Peter Kallang, a member of the Kenyah people who runs the NGO SAVE Rivers, was one of the leaders of the Baram campaign, helping coordinate, organize, and mobilize Indigenous communities that would have been most impacted by the dam. Now Kallang, SAVE Rivers, and other groups are fighting to defend traditional Indigenous lands against logging by Samling, a Malaysian timber company.
    - Kallang spoke about his background, Indigenous-led advocacy, the conservation sector’s shortcomings in recognizing Indigenous rights, and other topics during a June 2021 interview with Mongabay founder Rhett A. Butler.

    Threat of legal action against Indigenous Borneans protesting timber company (01 Jun 2021 23:44:43 +0000)
    - For more than a year, Indigenous communities in Malaysian Borneo have been campaigning against timber conglomerate Samling and its subsidiaries.
    - Indigenous groups and environmental NGOs allege the company failed to obtain free, prior and informed consent of communities affected by its certified-sustainable timber production plantations; the company denies the allegations.
    - In late May, Samling subsidiaries threatened to take legal action against Indigenous communities alleging the company was involved in trespass, damage or destruction of forest.
    - NGOs describe the letters as an attempt to silence Indigenous communities who have spoken out against the company.

    Chocolate giant funds high resolution carbon map to protect forests (01 Jun 2021 14:17:34 +0000)
    - A new carbon map based on high resolution satellite imagery that will help companies avoid deforestation in their supplies chains is expected to be published by the end of 2021.
    - The map builds on the High Carbon Stock (HCS) approach, a methodology that differentiates between six categories of vegetation cover, from native forest areas that conservationists say should be protected to degraded lands low in carbon and biodiversity that may be appropriate for conversion to other uses.
    - The map was developed by the EcoVision Lab at ETH Zurich and financed by Barry Callebaut, the world’s largest chocolate maker.
    - The initial release of the map covers Indonesia, the Philippines, and Malaysia.

    To keep tabs on ecosystem health in Borneo, follow these birds: Study (14 May 2021 14:20:10 +0000)
    - A recently published study has suggested looking at the wild populations of a key bird species as a gauge for ecosystem health in Borneo.
    - The researchers found six Bornean bird species are strong indicators of intact forests, three species indicated the state of a depleted forest, one for mixed gardens, and none for oil palm plantations.
    - The results endorse the general trend found across the tropics of a significant reduction in bird species richness, from complex natural and old secondary forest structures to simplified monoculture habitats.
    - Borneo is considered a significant biodiversity evolutionary hotspot, but logging, mining and conversion to monoculture agriculture have drastically impacted its rainforests, and modified landscape structure through fragmentation and habitat loss.

    Global forest loss increased in 2020 (31 Mar 2021 04:01:10 +0000)
    - The planet lost an area of tree cover larger than the United Kingdom in 2020, including more than 4.2 million hectares of primary tropical forests, according to data released today by the University of Maryland.
    - Tree cover loss rose in both the tropics and temperate regions, but the rate of increase in loss was greatest in primary tropical forests, led by rising deforestation and incidence of fire in the Amazon, Earth’s largest rainforest.
    - The data, which is now available on World Resource Institute’s Global Forest Watch, indicate that forest loss remained persistently high in the immediate aftermath of the pandemic, but “does not show obvious, systemic shifts in forest loss as a result of the COVID-19 pandemic,” according to WRI.
    - Destruction of primary tropical forests, the world’s most biologically diverse ecosystems, released 2.64 billion tons of carbon, an amount equivalent to the annual emissions of 570 million cars.

    Indonesian campaigners triumph against a coal mine in top court (23 Mar 2021 09:55:56 +0000)
    - Indonesia’s Supreme Court has rejected a final appeal from a coal company after it and the ministry of energy and mines lost a lawsuit filed by the Indonesian NGO Walhi three years earlier.
    - The company, PT Mantimin Coal Mining (MCM), had received an operating permit in South Kalimantan province without completing an environmental permit, which Walhi successfully argued was illegal.
    - Walhi urged the ministry of mines to obey and implement the Supreme Court’s decision. 
    - Walhi has also asked President Joko Widodo to immediately evaluate problematic mining permits in the province, especially after a disastrous flood this year was tied to operating and abandoned mines.

    Forest patches amid agriculture are key to orangutan survival: Study (26 Feb 2021 14:18:07 +0000)
    - A recent study highlights the importance of small fragments of forest amid landscapes dominated by agriculture for the survival of orangutans in Southeast Asia.
    - The research, drawing on several decades of ground and aerial surveys in Borneo, found that orangutans are adapting to the presence of oil palm plantations — if they have access to nearby patches of forest.
    - The authors say agricultural plantations could serve as corridors allowing for better connectivity and gene flow within the broader orangutan population.