African red toad (Schismaderma carens)

Identification and key characteristics

Schismaderma carens typically has a robust form, short limbs and a head that is broad relative to the body. Colouration ranges from brick red to darker brown, often with mottling or lighter patches on the underside. Like other bufonids, it has parotoid glands behind the eyes that produce toxins as a defence against predators. Tadpoles are dark and often aggregate in shallow pools during the rainy season before metamorphosing into juvenile toads.

Distribution and habitat

This toad occurs across much of southern and parts of eastern Africa. Recorded countries include Angola, Botswana, the Democratic Republic of the Congo, Kenya, Malawi, Mozambique, Namibia, South Africa, Eswatini (formerly Swaziland), Tanzania, Zambia and Zimbabwe; its presence in Lesotho has been reported but is less certain. It is an adaptable species found in a wide range of environments from dry savanna and moist grassland to shrubland and agricultural landscapes. It also occupies human-altered sites such as gardens, ponds, drainage ditches and water-storage areas.

Behaviour, diet and reproduction

African red toads are mainly nocturnal and feed on a variety of invertebrates including insects and other arthropods. They are ground-dwelling and may burrow or use shallow depressions to escape heat and desiccation. Breeding is typically triggered by seasonal rains; males call near temporary or permanent bodies of fresh water and eggs are laid in strings or clumps. Larval development usually takes place in ponds or slow-moving water, with metamorphosis following as conditions allow.

Conservation and human interactions

Because of its wide distribution and tolerance of disturbed habitats, Schismaderma carens is not regarded as critically threatened at a range-wide scale. Local populations can be affected by habitat loss, pollution, road mortality and the draining of breeding sites. As with many amphibians, they are useful indicators of environmental health, and conserving wetland breeding habitats benefits numerous other species.

Further information and resources

• Bufonidae family overview
• Genus Schismaderma reference
• Angola: country distribution note
• Botswana: occurrence records
• Democratic Republic of the Congo: regional data
• Kenya: habitat notes
• Malawi: conservation context
• Mozambique: field observations
• Namibia: distribution summary
• South Africa: species account
• Tanzania: occurrence details
• Zambia: regional information
• Zimbabwe: notes on sightings
• Lesotho: possible records
• Habitat types used by the species
• Dry savanna ecosystems
• Grassland and lowland habitats
• Freshwater marshes and breeding sites
• Arable land and agricultural landscapes
• Urban ecology: toads in towns and gardens
• Ponds and artificial reservoirs
• Canals and drainage features
• Man-made karsts and unusual habitats

The African red toad illustrates how some amphibians persist across a mosaic of natural and modified landscapes. For targeted conservation measures, local surveys to identify breeding sites and seasonal movement patterns are valuable, as is retaining small wetland patches within agricultural and urban areas.