Behavioral Ecologist & Primatologist

I study how landscapes shape the demography, movement, and sociality of primate populations.


My dissertation research is conducted at Arizona State University’s Institute of Human Origins, which houses the Jane Goodall Institute Gombe Research Archive.

My research focuses on two communities of wild chimpanzees in Gombe National Park, Tanzania - a habitat that’s experienced significant longitudinal change since the 1960s. To answer my research questions, I incorporate archival observational data, spatial analysis, and biomarker analysis.

My CV is available here.


Publications (In preparation)

Roivas, S.L., Schultz, J.M.*, Hoffman, M., Mjungu, D.C. & Gilby, I.C. “Ecological and social pressures shape chimpanzee nest site selection”. Manuscript to be submitted to Current Biology.

Roivas, S.L., Green, C.*, Gilby, I.C., Mjungu, D.C. & Pusey, A.E. “Maternity leave: Fission-fusion sociality as strategy for managing post-partum constraints in female chimpanzees”. Manuscript to be submitted to Behavioral Ecology and Sociobiology.

*co-first author & research mentee


Research Grants

National Science Foundation – $25,200 - DDRIG

The Leakey Foundation - $14,304 - Research Grant