Chloe Bracis

Movement Ecology Group



Dr. Chloe Bracis

Postdoctoral Researcher


Research interests

My research examines questions in movement ecology related to how animals make decisions about where to move and then carry out these movements. I’m interested in how explicitly considering movement and cognition changes our understanding of animal behavior. I’ve used simulation models to investigate these questions across a range of scales and contexts, including the mechanisms underlying the homeward migration of Chinook salmon from the ocean to the river mouth, how memory influences movement, foraging behavior, and food-safety tradeoffs in predator-prey interactions, and comparing memory and perception as directional cues for terrestrial mammalian migration. I have also developed an R package recurse for examining animals' revisitations to particular locations, available on CRAN . My current project involves examining alternate drivers of large-scale movements of terrestrial mammals.

Publication list

Tucker, M.A.,..., Bracis, C.,..., & Mueller, T. (115 authors). 2018. Moving in the Anthropocene: Global reductions in terrestrial mammalian movements. Science, 359:466-469

Bracis, C., Gurarie,E., Rutter, J., & Goodwin, R.A. Accepted. Remembering thegood and the bad: memory-based mediation of the food—safetytrade-off in dynamic landscapes. Theoretical Ecology.

Bracis, C. &Mueller, T. 2017. Memory, not just perception, plays an importantrole in terrestrial mammalian migration. Proceedings of the RoyalSociety B, 284:20170449.

Gurarie, E., Bracis, C.,Delgado, M., Meckley, T., Kojola, I., & Wagner, M. 2016. What is the animal doing? Tools for exploring behavioural structure in animalmovements. Journal of Animal Ecology, 85:69-84.

Bracis, C., Gurarie,E., Van Moorter, B. & Goodwin, R.A. 2015. Memory effects onmovement behavior in animal foraging. PloS One, 10:e0136057.

Anderson, J.J., Gurarie, E., Bracis, C., Burke, B.J. & Laidre, K.L. 2013. Modeling climate change impacts on phenology and population dynamics of migratory marine species. Ecological Modelling, 264:83-97.

Bracis, C. &Anderson, J.J. 2013. Inferring the relative oceanic distribution of salmon from patterns in age-specific arrival timing. Transactions of the American Fisheries Society, 142:556-567.

Bracis, C. & Anderson, J.J. 2012. An investigation of the geomagnetic imprinting hypothesis for salmon. Fisheries Oceanography 21:170-181.

Contact information

Phone: +49 (0)69 7542 1846