Behavioral repertoire of the Brazilian spiny-rats, Trinomys setosus and Clyomys laticeps: different levels of sociality

Abstract Behavior is a useful trait for comparative studies that provide the comprehension of phylogenetic relationships among species. Here, we present description two spiny-rats species’ behavioral repertoire, Clyomys laticeps and Trinomys setosus (Rodentia: Echimyidae). The affiliative agonistic patterns were sampled during three-year study captive populations wild animals. Observational data collected in phases under different arrangements individuals groups. We also compare traits T. C. with known yonenagae. add categories to previous descriptions standard ethogram laticeps. showed visual vocal display called foot-trembling, which was not described this form function other species studied until now. discuss differences their sociality levels similarities behavior repertoires.