Cape mountain toad
| Cape mountain toad | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Amphibia |
| Order: | Anura |
| Family: | Bufonidae |
| Genus: | Capensibufo |
| Species: | C. rosei |
| Binomial name | |
| Capensibufo rosei (Hewitt, 1926) | |
| Synonyms | |
|
Bufo rosei Hewitt, 1926 | |
The Cape mountain toad or Rose's mountain toad (Capensibufo rosei) is a species of toad in the family Bufonidae. Other common names include Rose's mountain toadlet, striped mountain toad, Rose's toad and Muizenberg Cape toad.[2][3] It is endemic to South Africa where its natural habitat is Mediterranean-type shrubby vegetation known as fynbos. It is threatened by habitat loss and is listed as "vulnerable" by the IUCN.
Description
Female Cape mountain toads grow to a length of about 39 mm (1.5 in) while males are smaller at 28 mm (1.1 in). The body is relatively long, the hind limbs are short and the toes are unwebbed. The dorsal surface is variably coloured in shades of grey or brown with a few paler streaks, and is smooth with scattered warts and blister-like ridges. The parotoid glands are obvious but there are no tympani (eardrums), a fact which helps distinguish this species from the otherwise similar Capensibufo tradouwi. The ventral surface is white with dark blotches and its posterior part has skin granulations. During the breeding season, there is an oval pink patch underneath the vent.[3]
Distribution and habitat
The Cape mountain toad is endemic to parts of the Western Cape province of South Africa, southwest of the Breede River and including the Cape Peninsula.[1] This is a hilly area and has a Mediterranean-type climate with a rainy season in the winter. It has a distinctive, heathland vegetation known as fynbos, characterised by small evergreen, sclerophyllous plants including proteas and ericoid species, herbs, bulbous plants and grasses, but not large trees.[4] The Cape mountain toad is found at elevations of between 60 and 1,600 m (200 and 5,250 ft) above sea level, mostly at altitudes above 400 m (1,300 ft).[1]
Biology
Breeding takes place at the time of the winter rains when temporary shallow pools form. The males do not call to attract females, and this may be the only South African species of amphibian that lacks a voice.[3] About one hundred eggs are laid in a gelatinous string and take about twelve days to hatch. The rate of growth of the tadpoles depends on the temperature and availability of food and metamorphosis into juvenile toads may occur about six weeks after hatching.[1][3]
Status
The Cape mountain toad is listed by the IUCN as being vulnerable. It is only found in fynbos heathland on the Cape and it does not seem to be adaptable to the changes in habitat associated with an increase in non-local plants and burning of the heathland that sometimes occurs. Although it is locally common at temporary pools in the breeding season, it occupies only about 2% of the suitable habitat in its range, is known from only eight localities and is absent from many areas that seem suitable, including some where it was found in the past.[1]
References
- 1 2 3 4 5 South African Frog Re-assessment Group; IUCN SSC Amphibian Specialist Group (2010). "Capensibufo rosei". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 2014-05-28.
- ↑ Frost, Darrel R. (2016). "Capensibufo rosei (Hewitt, 1926)". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 15 November 2016.
- 1 2 3 4 de Villiers, A. L.; Zimcus, Breda. "Capensibufo rosei (Hewitt, 1926)". African Amphibians Lifedesk. Retrieved 2014-05-28.
- ↑ Manning, John (2008). Field Guide to Fynbos. Struik Publishers. ISBN 9781770072657.