Four New Nadzikambia Chameleons from Mozambique’s Sky Islands

A recent study in Vertebrate Zoology has revealed four previously unknown species of sylvan chameleons in the genus Nadzikambia, discovered in the isolated montane "sky island" forests of northern Mozambique. Until now, only Nadzikambia mlanjensis and Nadzikambia baylissi were recognized, but integrative taxonomy combining morphology and genetics confirmed that each sky island population represents a distinct lineage.

The newly described species are:

• Nadzikambia goodallae (named in honor of Jane Goodall, recognizing her global impact on conservation and primate research)

• Nadzikambia franklinae (named in honor of Rosalind Franklin, acknowledging her pioneering contributions to molecular biology and science)

• Nadzikambia evanescens (from Latin evanescens, "vanishing," referring to the rapidly disappearing state of its forest habitat)

• Nadzikambia nubila (from Latin nubila, "clouded," in reference to the heavy clouds that bring rainfall to its montane forest habitat)

Together with N. mlanjensis and N. baylissi, the genus now comprises six species. Multivariate analyses of morphology, nuclear and mitochondrial DNA sequencing, and species delimitation methods (mPTP, SpeciesIdentifier) consistently supported their recognition as independently evolving lineages under the General Lineage Species Concept.

The conservation message is urgent. Satellite imagery shows that the montane forests where these chameleons live are shrinking rapidly due to slash‑and‑burn agriculture and logging. Because Nadzikambia species are strict forest specialists, they cannot survive outside these habitats. As the forests contract, so do the ranges of these newly described reptiles, placing them at immediate risk of extinction.

This discovery highlights both the extraordinary biodiversity of Mozambique's sky islands and the fragility of these ecosystems. Each new species is a unique evolutionary lineage found nowhere else on Earth, and their survival depends entirely on protecting the forests that shelter them.