Evolution of Karyotypes in Chameleons

Evolution of Karyotypes in Chameleons

The reconstruction of the evolutionary dynamics of karyotypes and sex determining systems in squamate reptiles is precluded by the lack of data in many groups including most chameleons (Squamata: Acrodonta: Chamaeleonidae). We performed cytogenetic analysis in 16 species of chameleons from 8 genera covering the phylogenetic diversity of the family and also phylogenetic reconstruction of karyoty...

Chromosomal Evolution in Tortricid Moths: Conserved Karyotypes with Diverged Features

Moths of the family Tortricidae constitute one of the major microlepidopteran groups in terms of species richness and economic importance. Yet, despite their overall significance, our knowledge of their genome organization is very limited. In order to understand karyotype evolution in the family Tortricidae, we performed detailed cytogenetic analysis of Grapholita molesta, G. funebrana, Lobesia...

Detecting Digital Chameleons 1 Detecting Digital Chameleons

Conversations are characterized by an interactional synchrony between verbal and nonverbal behaviors (Kendon, 1970). A subset of these contingent conversational behaviors is direct mimicry. During face to face interaction, people who mimic the verbal (Giles, Coupland, & Coupland, 1991) and nonverbal behaviors (Chartrand & Bargh, 1999) gain social advantage. Most research examining mimicry behav...

Thermoregulation in African chameleons

Field active and laboratory preferred body temperatures and critical thermal limits were measured in six species of Kenyan chameleons: Chamaeleo bitaeniatus, C. dilepis, C. ellioti, C. hohnelii, C. jacksonii, and C. schubotzi. Given the opportunity, all six species are very competent heliothermic thermoregulators. Individuals typically spend the night low in shrubby vegetation with body tempera...

The Biology of Chameleons