Sustainable Forest Development In Borneo

Some surviving forests in tropical developing nations were under growing pressures from human activities. Thus, it's necessary to make some research on forest ecology and conservation so that sustainable development goals can be achieved in forest. By William F Laurance, James Cook University

The forests of Borneo harbour exceptional biological diversity and endemism, and also provide key ecosystem services such as large-scale carbon storage that would otherwise contribute to harmful climatic change. 


However, Borneo’s forests have been rapidly cleared, fragmented, and degraded by a range of human activities, with industrial oil palm and wood-pulp plantations being among the greatest current threats, often following intensive industrial logging.


Recent research in tropical ecology and conservation biology has provided important information for guiding forest conservation and development activities in Borneo. In this brief essay, a snapshot of key points will be provided from the perspective of maintaining the region’s remarkably rich terrestrial biodiversity, especially that in Sabah, Malaysia.


Save Logged Forests

With the exception of protected areas, most physically accessible forests in Borneo have been selectively logged, often repeatedly, and often with heavy harvest intensities. 


Selectively logged native forests can sustain considerable biodiversity and environmental valuesbut are highly vulnerable to subsequent forest conversion for other uses, such as industrial plantations and swidden farming. For these reasons, protecting logged native forests is a crucial priority. 


This is probably the greatest challenge and priority for Sabah, given the extent of its logged forests. Conserving selectively logged forests also has great generality given that some 400 million ha of tropical forests worldwide are currently held in logging estates.


Combat Hunting in Protected Areas

Hunting is disappearing for some fauna, particularly larger-bodied species whose declines can have serious impacts on forest ecology and functioning. It is vital to limit hunting in protected areas and other habitats for sensitive wildlife. 


Some national parks in Borneo, such as Lambir Hills National Park in Sarawak, Malaysia, are being severely degraded by poaching, with major declines of wildlife and a collapse of basic ecological services such as seed dispersal.


There is a dire need to enforce anti-hunting regulations in protected areas. Logistical support and guidance from conservationist interests such the Borneo Futures Initiativeand groups combating the illegal wildlife trade are important for augmenting limited government resources for reserve protection. 


Public-education campaigns and the first-ever fatwa (Islamic religious ban) on illegal trafficking in endangered speciesare also useful.


Maintain Forest Connectivity

Many protected areas across the tropics are suffering biologically as they become increasingly isolated from surrounding forests. Therefore, it is essential to reduce forest loss and maintain biological connectivity wherever possible in the vulnerable lands surrounding protected areas. 


Particularly notable are efforts by the Sabah Forestry Department and Sabah Foundation to establish forest corridors and buffer zones in the greater Danum Valley area. It is notable for containing some of the last remaining tracts of unhunted forests in all of Borneo, parts of which have never been logged.


The corridors are linking together several protected areas in eastern Sabah while attempting to provide linkages between surviving lowland and upland forests. Because they harbour considerable biodiversity, selectively logged forests can provide effective buffer zones and connecting elements for such forest-conservation networks.


Limit Infrastructure Expansion 

Resisting environmental threats, such as hunting and habitat destruction or logging and fires, are major drivers of species declines and extinctions. 


It is difficult to limit such threats where human influences are strong, and thus conserving nature requires retaining extensive remote areas free from roads and other infrastructure that can greatly increase encroachment, hunting, fires, and other human impacts on forests. 

For such reasons road expansion should be greatly limited in forested areas wherever possible.


In Borneo, of particular concern are efforts to dramatically expand roads across much of Malaysian Borneo (Sarawak and Sabah) under the auspices of the ambitious ‘Pan-Borneo Highway Program’ and across Indonesian Borneo (Kalimantan) via the massive ‘Trans-Kalimantan Highway and Economic Corridor’. 


Under this background, proactive land-use planning that seeks to optimise the economic benefits of new infrastructure while reducing its impacts on wilderness and protected areas is vital.


Climate Change In Conservation Planning

A key priority is to consider both natural climatic variability and the prospects of future climatic change in conservation planning. Current climate models suggest that El Niño droughts will increase in intensity in the western Pacific region, which includes Borneo.


Such droughts, in concert with logging, forest fragmentation, and fire-based swidden farming, can lead to intense forest fires which have severe impacts both on forests and on agricultural lands and human livelihoods. Special measures, such as effectively enforced government bans on burning, may become essential during future droughts.


Climate change should also be incorporated into the design of nature reserves and reserve networks. By conserving major elevational gradients for Borneo’s migratory birds, mammals, and insects and providing refugia for species that are vulnerable to extreme weather events, the growing conservation network around Danum Valley in eastern Sabah could help to buffer wildlife populations and biodiversity from future climatic change. 


Make Research For Conservation

The presence of researchers is often a valuable means to defend parks from illegal encroachment and hunting and to advocate persuasively for the importance of forest conservation. Hence, promoting long-term research may be one of the most effective ways to ensure that parks remain biologically viable.


For example, under the auspices of the Southeast Asian Rainforest Research Partnership (SEARRP), the British Royal Society and other scientists have played a very active role in promoting forest conservation in Sabah. Among their most effective initiatives has been the close liaison between SEARRP researchers and the Sabah Forestry Department to design and promote the linked network of protected areas in the greater Danum Valley area.


The success of this effort underscores the vital potential for long-term research programs to build successful relationships with local land-use managers and government authorities. A related SEARRP research effort in Sabah, known as the Stability of Altered Forest Ecosystems (SAFE) Project, is providing key insights into the effects of forest fragmentation by oil palm plantations on a variety of plant and animal species and ecological processes.



The forests of insular Southeast Asia are among the biologically richest and most imperilled ecosystems on Earth. Ideally, one would hope to conserve large, pristine blocks of forest that represent the region’s great diversity of biogeographic regions. 


In reality, conservationists are scrambling to protect dwindling areas of logged forests before they are bulldozed or razed for industrial plantations or swidden farming. In a perfect world the region’s protected areas would be well managed, yet many reserves suffer from illegal encroachment, hunting, and mining—chronic threats that must be battled. One would also hope to have strong legacies of research across the archipelago to inform land-use and conservation decisions—yet scientific efforts are spotty, underfunded, and frequently inadequate.


These are the environmental realities one faces in Southeast Asia, and indeed across much of the tropics. Yet we are not powerless. We know enough right now to set clear conservation priorities. The question is whether we will have the perseverance and determination needed to achieve them.


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