Climate Change Threatens Africa's Ground Pangolin

The pangolin has survived on Earth for over 80 million years. Ice ages, mass extinction events, continental drift — none of it ended the lineage. But a warming Africa is presenting challenges that even 80 million years of adaptation may not have prepared this species for.

Conservation attention has long focused, correctly, on illegal poaching and trafficking. That remains the dominant crisis. But climate change is emerging as a compounding stressor — one that is quietly eroding the habitat quality, food availability, and thermal safety margins that pangolins depend on. Understanding how a changing climate affects this already-threatened species is essential for designing conservation strategies that work across the coming decades.

Why Pangolins Are Climate-Sensitive

The Temminck's ground pangolin (Smutsia temminckii), the species found across southern and eastern Africa, is a specialist insectivore. Its diet consists almost entirely of ants and termites — typically 70 to 90 species of termite across its range, with a preference for harvester termites of the genus Hodotermes and the mound-building Macrotermes. This dietary specialisation is both its ecological strength and its climate vulnerability.

Termite and ant colonies are highly sensitive to temperature and moisture. They thrive within relatively narrow environmental windows. Prolonged drought reduces organic matter and soil moisture, suppressing colony growth. Extreme heat events can cause surface-foraging termite activity to collapse for days at a time. When the insect baseline shifts, the pangolin's food supply shifts with it — and unlike generalist feeders, pangolins cannot easily switch to alternative prey.

Temperature Extremes and Thermoregulation

Pangolins are poor thermoregulators by mammal standards. They lack the ability to sweat, and their metabolic rate is unusually low for their body mass. In practice, this means they depend almost entirely on behavioural thermoregulation — principally, retreating into burrows during the heat of the day.

Underground, temperatures run 10 to 15 degrees Celsius cooler than the surface at midday during southern African summers. A pangolin foraging at night and resting underground during the day can maintain its body temperature within safe limits in most conditions. But this strategy has limits.

When surface temperatures exceed 40 degrees Celsius for extended periods — as they increasingly do in parts of Limpopo, the Northern Cape, and Botswana — baked-out soils transmit heat further underground than normal. In severe cases, burrow temperatures can rise enough to eliminate the thermal refuge entirely. Pangolins observed during extreme heat events have been recorded moving deeper or relocating burrows entirely, behaviours that increase their energy expenditure and surface exposure time during the most dangerous hours.

Drought and the Collapse of Food Supply

Rainfall variability is the other key climate lever. Pangolin range in southern Africa overlaps substantially with the semi-arid Savanna Biome — a landscape already defined by seasonal drought and episodic rainfall. Climate projections for this zone consistently indicate hotter and drier conditions, with longer dry seasons and more concentrated but unpredictable wet-season rain events.

For termite populations, this matters at two levels. Harvester termites forage on dry grass and plant material; a prolonged dry season that kills off ground cover reduces their resource base and constrains colony expansion. Mound-building species require specific soil moisture conditions for nest construction and maintenance. Multi-year droughts, increasingly common in the Limpopo and North West provinces of South Africa, have been documented to reduce termite biomass by 15 to 20 percent in affected areas.

A pangolin covering its typical nightly foraging range of two to three kilometres may find insufficient food during drought periods. Field researchers tracking GPS-fitted animals have recorded foraging paths expanding significantly during dry spells as pangolins range further to find active termite mounds — expending more energy while consuming less. If an animal cannot maintain energy balance, it is more susceptible to stress, disease, and reproductive failure.

Wildfires: A Growing Threat to Pangolin Habitat

Southern Africa's fire season is intensifying. Climate models project increases in both the frequency and the severity of wildfires across the Savanna Biome through mid-century. For pangolins, fire is a multi-layered threat.

In the immediate term, pangolins moving above ground during a fire event are at risk. They are slow-moving on the surface and their defensive curl — which evolved against animal predators — offers no protection against fire. Animals that are foraging at night when a fast-moving grass fire arrives may be unable to reach a burrow in time.

The longer-term consequences are more significant at the population level. Post-fire landscapes take one to three years to recover sufficient grass cover, leaf litter, and soil structure to support active termite and ant colonies at pre-fire densities. A pangolin's home range that burns during a dry-season fire is effectively sterilised as foraging habitat for the following one to two growing seasons. Animals are forced to relocate or compress into adjacent unburned areas — increasing density pressure on remaining food sources and heightening conflict with other pangolins and with human settlement along the periphery of protected areas.

Range Compression and Habitat Loss

Species distribution modelling for Smutsia temminckii under various warming scenarios consistently shows a southward and elevation-ward shift in the centre of suitable habitat. The northern and western edges of current range — parts of Zimbabwe, Zambia, and arid South Africa — become progressively less suitable as temperature and aridity increase. The southern, cooler edge gains marginal suitability, but that edge often runs into the cultivated landscapes of the Western and Eastern Cape, where pangolin habitat is already fragmented to near-zero.

Unlike large, wide-ranging mammals, pangolins cannot rapidly disperse across landscapes. They are slow, solitary, and do not travel in groups. Connectivity between protected areas — the corridors and wildlife ranches that link reserves — is critical for allowing slow range shifts over decades. Where corridors are broken by roads, farms, or urban development, climate-driven range shifts stall, and populations are left in place as their habitat slowly degrades beneath them.

What Conservation Is Doing

South Africa's pangolin conservation community is beginning to integrate climate projections into reserve management plans, though formal climate adaptation strategies for the species remain nascent.

Habitat Connectivity

The most direct climate adaptation measure is maintaining and expanding connectivity between protected areas. Initiatives such as the Greater Mapungubwe Transfrontier Conservation Area and the Limpopo-Shashe cross-border zone provide large, connected landscapes where pangolins can shift their range incrementally in response to changing conditions without being stopped by human barriers.

Fire Management

Controlled burning regimes — designed to create a mosaic of burned and unburned patches across reserve landscapes — reduce the risk of catastrophic single-event fires that sterilise large contiguous areas. Reserves with active fire management typically maintain higher and more stable termite densities across the landscape than those where fire is unmanaged.

Monitoring and Early Response

GPS telemetry programmes tracking pangolin movement and body condition provide early warning of environmental stress. Animals that show unusual ranging behaviour, weight loss, or reproductive failure during drought periods can alert managers to emerging habitat problems before they become catastrophic at the population level.

The Double Threat

The pangolin's situation is unlike that of most threatened species because it faces two existential threats operating simultaneously on different timescales. Poaching is an acute, immediate crisis — every animal removed from the wild is a loss that compounds across seasons. Climate change is a chronic, slow-moving crisis that degrades the carrying capacity of the landscape beneath the feet of every surviving animal.

A species at healthy population levels could absorb a degree of habitat degradation. A species already reduced to small, fragmented populations by a decade of intensive trafficking cannot. The two threats are not additive — they are multiplicative. Addressing only one while the other continues means fighting a losing battle on a tilting floor.

Pangolin conservation in the 2030s and beyond will need to be climate-aware by design. Reserve sizing, corridor protection, fire management, and water-point maintenance are not just standard conservation tools — they are, increasingly, climate adaptation infrastructure for one of Africa's most ancient and most threatened mammals.