A new species of gecko has been discovered on the western flanks of the Andringitra Massif – a 64km mountain range in south-eastern Madagascar.
Found among granite boulders in the Tsaranoro valley on the western flanks of the massif, Paragehyra tsaranoro (as it has been named) is both endemic and 'microendemic' – a word used to describe species found only in a very small area.
The gecko has so far only been spotted in three tiny forest fragments, all located within a 15km stretch of land. These patches are what remain of a once-vast forest landscape, now heavily damaged by deforestation.
The discovery, published in the journal ZooKeys, shows just how much remains unknown about Madagascar’s reptiles and amphibians, many of which are under serious threat, say the study authors.
Paragehyra tsaranoro – a new gecko
"Paragehyra tsaranoro is named after the Tsaranoro valley, where it was first observed,” says lead author Francesco Belluardo from the University of Molise in Italy.
Because of its tiny range and the destruction of its habitat, the researchers have recommended the new gecko be listed as Critically Endangered on the IUCN Red List.
Most of the known habitat of P. tsaranoro lies outside Madagascar’s official protected areas. The only current protection comes from reserves managed by local communities. These areas, designed to support both conservation and sustainable living, have become important sanctuaries for wildlife.
“Building on previous research in the region, it appears that this landscape is full of hidden biodiversity gems, including other microendemic reptile species found nowhere else in the country,” says Belluardo. "These community-managed reserves act as important refuges for local wildlife.
"Interestingly, many of these small forest fragments are known locally as ‘Forêts sacrées’, or sacred forests… Protecting this cultural heritage has also helped safeguard local species,” adds Belluardo.
Top image: Paragehyra tsaranoro. Credit: Javier Lobón-Rovira
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