Social and Behavioral Sciences Commons^™

Introducing A Silverback To An Established Group Of Adult Female Western Gorillas (Gorilla Gorilla Gorilla), Claudia Martinez

Theses and Dissertations

In May of 2015, an attempt to introduce a new silverback (adult male) to an established group of six western lowland gorillas (Gorilla gorilla gorilla) housed at Gladys Porter Zoo failed. The introduction process was halted and only protected contact among the gorillas was allowed. On May 1, 2018 another introduction was initiated to three adult females.Twelve months of behavioral data were compared across three time periods and two environments. We predicted that an increase in agonistic and affiliative behaviors would occur while anxious behaviors would decrease. We observed a significant increase in affiliative behavior and a significant decrease in …