This species is known with certainty from near An'Ala (Vohimana) in eastern Madagascar at 840 m asl. Records from Andapa at 500 m asl in the north require genetic confirmation, but are included in the species taxonomic concept for the purposes of the assessment. It therefore occurs in two very distant threat-defined locations and its extent of occurrence (EOO) is 8,563 km2.
Habitat and Ecology
It lives in pristine rainforest along swampy streams, but not in very open areas. It breeds in pools and swamps close to streams.
It is a locally abundant species, especially when breeding. However due to ongoing declines in the extent and quality of habitat, the population is suspected to be decreasing.
Its forest habitat is receding due to subsistence agriculture, timber extraction, charcoal manufacture, invasive spread of eucalyptus, livestock grazing and expanding human settlements. These threats are especially severe at Vohimana: the dense rainforest in which this species was originally recorded has been opened up and largely degraded (F. Glaw pers. comm. November 2015).
This species has not been confirmed from any protected areas, but might occur in the nearby Marojejy National Park in the north, the Andasibe-Mantadia National Park and Analamazoatra Special Reserve in the east.
Conservation NeededResearch Needed
Improved protection and management of forests throughout the region is required, including within the boundaries of protected areas.
Further research is required to clarify the species' distribution, population size and trends.
Red List Status
Listed as Vulnerable because its extent of occurrence is 8,563 km2, it occurs in two threat-defined locations, and there is ongoing declines in the extent and quality of its habitat.
IUCN SSC Amphibian Specialist Group 2016. Guibemantis kathrinae. The IUCN Red List of Threatened Species 2016: e.T57490A84172649. http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T57490A84172649.en .Downloaded on 18 February 2019