This species is known only from the Pacific slopes of the Sierra Madre del Sur of Oaxaca between San Gabriel Mixtepec and Pochutla, Mexico. It is known from an altitude of about 1,000-1,500m asl. It probably occurs a little more widely than current records suggest.
Habitat and Ecology
It terrestrial and lives in pine-oak forests and in shaded coffee plantations. In the forest it is possible to find individuals inside logs and in rock rubble. In mix-use shade-coffee plantations the species can be found in the leaf axils of red banana plants. It reproduces by direct development.
It is a locally common species where there are red bananas.
Although this species can survive outside its original forest habitat, it does not tolerate the transformation of landscape into very open, and hence less humid, habitats. Such habitat modification is taking place because of increased human settlement and the abandonment of coffee plantations in favour of other forms of agriculture.
It does not occur in any protected areas, and there is a need for improved maintenance and protection of pine-oak forests in the Sierra Madre del Sur. This species is protected by Mexican law under the "Special Protection" category (Pr).
Red List Status
Near Threatened (NT)
Listed as Near Threatened because its relatively small range (<5,000 km2) has been deforested in the past and the remaining artificial habitat (red bananas within shade-coffee plantations) are being replaced by yellow bananas. If the habitat of the species becomes severely fragmented it would qualify as Endangered under criterion B1ab(iii).
Gabriela Parra-Olea, David Wake, James Hanken 2008. Bolitoglossa macrinii. The IUCN Red List of Threatened Species 2008: e.T59176A11893960. http://dx.doi.org/10.2305/IUCN.UK.2008.RLTS.T59176A11893960.en .Downloaded on 18 January 2019