Ikakogi is a genus of glassfrogs in the family Centrolenidae. These amphibians are endemic to the Sierra Nevada de Santa Marta, an isolated mountain range located in northern Colombia.
Taxonomy and Phylogeny
The genus was established in 2004 following a taxonomic revision of the family Centrolenidae. For over a decade, it was considered monotypic, containing only the species Ikakogi tayrona. In 2019, a second species, Ikakogi ispacue, was described. Within the subfamily Centroleninae, Ikakogi is recognized as a relatively basal lineage. The name of the genus is derived from the Kogi (or Kogui) people, an indigenous ethnic group inhabiting the Sierra Nevada de Santa Marta.
Physical Characteristics
Like other glassfrogs, members of Ikakogi possess translucent skin on their ventral surface, through which internal organs may be visible. They are medium-sized frogs characterized by a green dorsal coloration that provides camouflage against foliage. A distinguishing morphological feature of the genus is the presence of a humeral spine—a bony projection on the humerus—in adult males, which is used during physical male-to-male combat over territory.
Ecology and Behavior
Ikakogi species are primarily found in montane forests near high-altitude streams. They are nocturnal and arboreal. The genus is notable for its reproductive strategy; females deposit egg clutches on the upper surfaces of leaves overhanging running water. Unlike many other glassfrog genera, Ikakogi exhibits prolonged parental care, where the male remains near the eggs to provide protection against predators and desiccation. Once the eggs hatch, the tadpoles drop into the stream below to complete their larval development in the benthos.
Conservation Status
Due to their restricted geographic range, species within the genus Ikakogi are susceptible to localized environmental disturbances. Their habitats are situated within a narrow elevational belt, making them vulnerable to climate change, deforestation, and water pollution. Ikakogi tayrona has previously been assessed by the International Union for Conservation of Nature (IUCN) as Vulnerable, though conservation status can vary based on updated population data and habitat stability.
