Mertensophryne lonnbergi, commonly known as Lönnberg's toad or the Mt. Kenya toad, is a species of toad belonging to the family Bufonidae. It is endemic to the central highlands of Kenya, particularly associated with high-altitude regions such as Mount Kenya and the Aberdare Mountains.
Taxonomy and Etymology
The species was originally described under the genus Bufo as Bufo lonnbergi. It was later reassigned to the genus Mertensophryne. The specific epithet, lonnbergi, honors the Swedish zoologist Einar Lönnberg, who contributed significantly to the study of East African fauna.
Habitat and Ecology
Mertensophryne lonnbergi is a montane species, typically found at elevations ranging from 2,200 to 3,800 meters above sea level. Its natural habitats include montane grasslands, heathlands, and high-altitude marshes. It is also found in the margins of montane bamboo forests. Like many members of its family, it is generally terrestrial, though it requires access to water bodies—such as slow-moving streams or seasonal pools—for breeding and larval development.
Description
The species is characterized by the typical morphological features of the genus Mertensophryne. It is a relatively small toad with a warty skin texture. While specific morphological descriptions vary between populations, individuals generally exhibit cryptic coloration to blend with the montane vegetation and soil. Detailed anatomical studies often focus on the skull structure and the presence of parotoid glands, which are characteristic of bufonids.
Conservation Status
According to the IUCN Red List of Threatened Species, Mertensophryne lonnbergi is categorized as Least Concern. This assessment is based on its relatively stable population and its presence within protected areas, such as the Mount Kenya National Park and Aberdare National Park. While its restricted range makes it potentially vulnerable to localized environmental changes or climate-induced habitat shifts, there are currently no major widespread threats identified that would lead to a rapid population decline.