Mariana Abarca

Role: Research Assistant Professor
Status: Current
Current Affiliation: Georgetown University
Current Email:
Start year: 2015
Ecology, phenology, plant-insect interactions, climate change and natural history (I like studying how caterpillars eat and get eaten).



Abarca, M., Lill, J. T., & Weiss, M. R. (2020). Host Plant and Thermal Stress Induce Supernumerary Instars in Caterpillars. Environmental entomology, 49(1), 123-131.


Abarca, M., E.A. Larsen, and L. Ries. (2019). Heatwaves and Novel Host Consumption Increase Overwinter Mortality of an Imperiled Wetland Butterfly. Front. Ecol. Evol. 7: 193. doi: 10.3389/fevo.

Abarca, M. (2019). Herbivore seasonality responds to conflicting cues: Untangling the effects of host, temperature, and photoperiod. PLoS ONE, 14(9).


Abarca, M., E. Larsen, J.T. Lill, M. Weiss, E. Lind, L. Ries. 2018. Inclusion of host quality data improves predictions of herbivore phenology. Entomologia Experimentalis et Applicata 166 (8), 648-660

Abarca, M., Lill, J. T., & Frank-Bolton, P. (2018). Latitudinal variation in responses of a forest herbivore and its egg parasitoids to experimental warming. Oecologia, 186(3), 869-881.