Cameroon harbors a high diversity of chameleon species compared to adjacent countries, especially in montane areas (Böhme and Klaver 1981; Gonwouo et al. 2006; Herrmann et al., 2005, 2006; Barej et al., 2010). Fifteen species of chameleon are known in Cameroon, and recent investigations indicate that 6 species and 3 subspecies of chameleons are endemic to the Cameroon Volcanic Line: Trioceros montium, T. pfefferi, T. perreti, T. serratus, T. wiedersheimi, T. quadricornis quadricornis, T. quadricornis gracilior and T. quadricornis eisentrauti (Chirio et al., 2007, Gonwouo, 2009, Tilbury and Tolley, 2009, Barej et al., 2010). Despite conservation measures and country rules, they are threatened by exploitation from the illegal pet trade, deforestation, grassland burning, overgrazing and persecution due to local beliefs. Chameleons play an important role in trophic food chains in the forest, and therefore a role in the flow of energy through the ecosystem. In order to fulfill the objectives of this work we have investigated mountains from the Cameroon Volcanic Line (CVL) in existing trails at night from Mt Cameroon to Tchabal Mbabo. Some of these mountains are still waiting to be investigated for this work (Rumpi hills and Tchabal Mbabo) so the occurrence data used to display their distribution will be obtained other resources as GBIF.

The occurrence data obtained now a day showed that these species endemic from the CVL follow some distribution patterns as we have less disturbed forest like species as T. pfefferi, T. quadricornis quadricornis, T. quadricornis gracilior and T. quadricornis eisentrauti; disturbed forest and Grassland like species as T. perreti, T. serratus and T. wiedersheimi and species found in both habitat types Trioceros montium. The occurrence data have been settled using Maximum Entropy modeling MAXENT to display the future distribution of these endemics species of chameleon taking in account the climate change as the forest and habitat range is reducing due to the extension of farms in mountain area. Less disturbed like species are the one that will be affected the most as the pressure will increase on their habitat as none of them is found on a protected area except the case of Mt Oku and Mount Cameroon who are the only two mountains with protected status.