PROTECTING Uapaca kirkiana IN MALAWI'S FOREST RESERVES

 

POLICY BRIEF

Protecting Uapaca kirkiana in Northern Malawi’s Forest Reserves

Evidence from a comparative demographic assessment of Perekezi and Kaning’ina Forest Reserves reveals divergent regeneration trajectories and points to urgent, site-specific management action.

Based on: Nduw, B.O., Mhango, J. & Ngulube, E. (2026). Population Structure, Regeneration Status, and Health Condition of Uapaca kirkiana (Phyllanthaceae) in Perekezi and Kaning’ina Forest Reserves, Northern Malawi. Feddes Repertorium, 137, no. 3:e70141. https://doi.org/10.1002/fedr.70141.

 

Why this matters

Uapaca kirkiana (“masuku” or wild loquat) is a keystone miombo woodland tree that underpins rural food security, income, and ecosystem services across Malawi and neighbouring countries, while also contributing to soil stabilisation and carbon sequestration. Miombo woodlands are losing forest cover faster than almost any other biome in sub-Saharan Africa, yet demographic evidence on how individual species are faring inside protected reserves has been strikingly thin. This brief distils the first empirical population assessment of U. kirkiana in two government-managed reserves in northern Malawi, a region identified as a national conservation priority zone, and translates the findings into direct guidance for forestry authorities, conservation partners, and community stakeholders.

What the study found

Two reserves, two very different trajectories

Fifty sample plots (20 in Perekezi, 30 in Kaning’ina) were surveyed to compare tree size structure, regeneration, and health. The two reserves, similar in gazette status and management model, but differing in surrounding land use, showed sharply contrasting outcomes:

Indicator	Perekezi (rural)	Kaning’ina (peri-urban)
Diameter (size-class) pattern	Reverse J-shape – classic sign of healthy, self-sustaining recruitment	Bimodal, with a deficit of small trees – sign of a past recruitment gap
Mean tree diameter	11.4 cm (younger stand)	20.6 cm (older, larger stand)
Healthy individuals	Significantly higher proportion (p = 0.005)	Significantly higher prevalence of unhealthy/dying trees (p = 0.014)
Juvenile density (regeneration)	High – an active seedling bank	Markedly lower, consistent with suppressed recruitment

 

The drivers behind the divergence

•Perekezi’s intact, rural setting has allowed continuous seedling recruitment and low disturbance. It functions as a demographic reference baseline for the species in the region.

•Kaning’ina’s proximity to Mzuzu City exposes it to compounding pressures: charcoal burning, informal religious-site clearance, soil compaction, and urban stressors (heat-island effects, particulate load, altered runoff) that together suppress seedling establishment and elevate tree mortality.

•Both reserves are formally gazetted and government-managed under equivalent protection frameworks; yet population outcomes differ substantially, showing that legal protection alone does not guarantee ecological viability.

 

Policy implications

•Protected-area status should not be treated as a proxy for population health. Site-specific demographic monitoring is needed to detect decline before it becomes irreversible.

•Urban-adjacent reserves face a distinct risk profile that rural reserves do not, and require dedicated governance tools. Not the same generic management plan applied reserve-wide.

•Without intervention, Kaning’ina’s ageing, recruitment-suppressed population is on a trajectory toward long-term decline, compounded by projected climate-driven habitat contraction by 2050–2070.

 

Recommendations

For Perekezi – protect what is working

•Secure reserve boundaries against agricultural and charcoal encroachment to preserve the existing high-density juvenile pool (2,387 stems/ha in the smallest size class).

• Protect seed-dispersal vectors on which natural regeneration depends.

• Establish permanent monitoring plots to track trends under future climate and land-use pressure.

 

For Kaning’ina – active, not passive, restoration

• Implement assisted natural regeneration: gap planting with locally sourced U. kirkiana propagules in degraded microsites.

•Regulate and exclude charcoal production and informal land-clearing activities from ecologically sensitive zones.

•Integrate the reserve into Mzuzu’s urban forestry governance framework to formalise protection and align municipal and forestry mandates.

•Launch community engagement programmes that reduce dependence on the reserve for fuelwood, paired with alternative livelihood or energy options.

Cross-cutting, for both reserves and similar miombo sites

•Adopt differentiated, evidence-based management plans rather than uniform reserve-wide policy – disturbance regime and urban proximity, not just gazette status, should determine management intensity.

•Pair in-situ protection with ex-situ conservation: domestication and propagation of locally adapted U. kirkiana seed sources in community woodlots and agroforestry systems.

•Calibrate community fruit and wood harvesting to the demographic capacity of each population rather than applying blanket harvesting rules.

 

Bottom line

Formal protection is necessary but not sufficient. Two reserves under the same legal framework have produced opposite demographic outcomes because disturbance regimes and urban proximity differ. Sustaining Uapaca kirkiana, and the rural livelihoods and ecosystem services it supports, requires management resources and interventions that are targeted to each reserve’s actual ecological condition, backed by long-term, permanently marked monitoring plots. 

Prepared from: Nduw, Mhango & Ngulube (2026), Feddes Repertorium 137:e70141 (DOI: http://dx.doi.org/10.1002/fedr.70141),  a study conducted under the African Centre of Excellence in Neglected and Underutilized Biodiversity (ACENUB), Mzuzu University, with World Bank support.