Hi All, thanks for your posts.
So far I have not much luck online and what I found is either too basic or not adding any info to what is already available in Petr Necas' book - my chameleon bible since I got my first cham about 10 years ago... I would love to get a copy of Chameleons of Africa, but the cost is somewhat prohibitive... It will have to stay on my wish-list for the time being!
Among scientific papers I found only one that, albeit not specific, reports some information on natural occurrence of this species:
Akani, G. C., Ogbalu, O. K. & Luiselli, L., 2001. Life–history and ecological distribution of chameleons (Reptilia, Chamaeleonidae) from the rain forests of Nigeria: conservation implications. Animal Biodiversity and Conservation, 24.2: 1–15.
Also, there is a DVM dissertation that has some information on captive care as well:
Junius-Bourdain F. 2006. CAMÉLÉONS: BIOLOGIE, ÉLEVAGE ET PRINCIPALES AFFECTIONS. ÉCOLE NATIONALE VÉTÉRINAIRE D’ALFORT.