Across sub-Saharan Africa, fields of maize, rows of citrus, and vast cattle ranches are steadily replacing the bush. For pangolins, the world's most trafficked wild mammals, the conversion of natural land to agriculture is not merely a backdrop to their crisis. It is one of its primary causes.
Africa's four pangolin species — the ground, giant, white-bellied, and black-bellied pangolin — depend on intact habitats offering undisturbed soil for burrowing, dense ground cover for shelter, and a thriving community of ants and termites for food. Agricultural expansion dismantles each of these requirements, often simultaneously.
The Scale of Agricultural Expansion in Sub-Saharan Africa
Sub-Saharan Africa has experienced some of the fastest rates of agricultural land conversion on the planet over the past four decades. The Food and Agriculture Organization estimates the region added roughly 50 million hectares of cropland between 1990 and 2020, much of it at the expense of savanna woodland, dry forest, and bushveld — the ecosystems African pangolins call home. Population growth, food security pressures, and commodity export markets have all driven this expansion, with smallholder subsistence clearing and large-scale commercial operations alike transforming habitats in ways that pangolins cannot easily survive.
How Habitat Fragmentation Isolates Pangolin Populations
Pangolins are solitary, wide-ranging animals. Male ground pangolins have been recorded covering home ranges of up to 36 square kilometres. When agricultural parcels carve up continuous habitat, the result is a mosaic of isolated patches that pangolins struggle to move between safely. Fragmentation severs the corridors that allow individuals to find mates, juveniles to disperse, and populations to recover from local losses. A group trapped in a 500-hectare remnant surrounded by cropland is functionally cut off from neighbours just a few kilometres away, eroding genetic diversity and heightening extinction risk over time.
Pesticides and the Collapse of the Ant and Termite Food Supply
Pangolins are obligate myrmecophages: they eat almost exclusively ants and termites, and a single ground pangolin may consume tens of thousands of insects in a single night. Anything that reduces ant and termite populations therefore strikes directly at pangolin survival.
Modern crop production relies on broad-spectrum insecticides and herbicides that do not distinguish between crop pests and the insects pangolins eat. Residues drift from treated fields via wind and runoff, reducing insect biomass across the surrounding landscape. Herbicides compound the problem by altering the vegetation that many ant and termite species depend on, further depleting prey in areas that appear structurally intact.
Ground Clearing, Burrow Destruction, and Loss of Cover
Preparing land for cultivation involves the mechanical removal of all vegetation and disturbance of the soil profile. For ground pangolins, which excavate deep burrows and rely on dense ground cover for daytime shelter, this is immediately destructive. Burrow systems represent months or years of investment; when clearing machinery destroys them, displaced animals are pushed into already-occupied territories and exposed to greater predator and human pressure. The removal of shrubs, logs, and grass cover also eliminates the microhabitats that support ant and termite colonies, rendering even edge vegetation largely unusable for foraging.
Bushmeat Hunting and the Opportunism of Land Clearing
The clearing process itself creates concentrated wildlife vulnerability. Machinery moving through bush flushes animals from cover, making them easy targets. Pangolins encountered are often captured for bushmeat or the illegal wildlife trade. This pressure is difficult to monitor: it occurs in remote areas, involves transient labour forces, and leaves little trace. In regions where bushmeat is culturally embedded, the appearance of a pangolin during clearing operations is rarely ignored.
Road Networks, Agricultural Infrastructure, and Poaching Access
Agricultural expansion requires new roads, irrigation channels, and power lines that penetrate previously inaccessible terrain. These do not disappear when the land is developed; they become permanent features that poachers and traders use long after construction. Research on wildlife trafficking in southern Africa consistently finds that road density correlates with poaching pressure. Pangolins that once occupied remote bushveld become newly accessible as farm roads push deeper into the landscape, compounding the threat habitat loss already presents.
The South African Context: Citrus, Maize, and Game Farms
South Africa illustrates these pressures converging. The commercial citrus industry, centred in Limpopo but expanding into marginal savanna, has converted extensive bushveld to intensively managed orchards whose pesticide regimes reduce insect prey in surrounding areas. Maize production across the highveld and into savanna margins similarly eliminates ground pangolin habitat. Game farming, though often portrayed as conservation-compatible, frequently involves perimeter fencing that bisects home ranges; even where game farms retain natural vegetation, their fences deepen the fragmentation problem.
Conservation Strategies: Corridors, Buffer Zones, and Farmer Incentives
Wildlife Corridors
Reconnecting fragmented habitat through wildlife corridors is among the most widely supported strategies in conservation biology. For pangolins, corridors need not be wide: strips of natural vegetation along drainage lines or farm boundaries can provide meaningful movement paths if they offer adequate cover and insect food. Landowner agreements backed by payments for ecosystem services have shown promise in southern Africa.
Buffer Zones and Reduced-Input Farming
Buffer zones of reduced or zero pesticide application around protected areas help sustain the insect communities pangolins depend on. Integrated pest management that reduces reliance on broad-spectrum insecticides benefits both long-term agricultural productivity and surrounding wildlife communities.
Incentives for Conservation-Friendly Farming
Financial incentives for pangolin-friendly land management are emerging through biodiversity offset schemes, voluntary carbon markets, and government programmes. Payments for retaining natural vegetation, restrictions on certain pesticide types, and support for wildlife-friendly fencing can align farmer interests with conservation goals.
What Landowners Can Do
Individual landowners have meaningful capacity to reduce the impact of their operations on pangolins. Practical steps include retaining natural vegetation along watercourses, switching to targeted insecticide applications and avoiding organophosphates near natural areas, and installing low-gap fencing that allows pangolins to pass beneath boundary fences. Reporting sightings to the African Pangolin Working Group and participating in biodiversity audits are also valuable. None of these measures requires the abandonment of productive farming, but they do require recognising that the landscape a farm occupies is the same landscape pangolins depend on.
A Shared Landscape
The relationship between agriculture and pangolin conservation is not simply adversarial. What the evidence demands is a more deliberate approach to how farmland is developed and situated within the broader landscape. Agricultural expansion will continue in sub-Saharan Africa; the question is whether it can be guided by a clearer understanding of its ecological costs. Without conservation tools applied at meaningful scale — corridors, buffer zones, incentive programmes, and better land-use planning — the contraction of viable pangolin habitat will continue, and with it the prospects for long-term pangolin survival across the continent.