Dr Maggie Douglas




Ph.D. Entomology/International Agriculture & Development

          Pennsylvania State University (2016)

M.S. Entomology

         Pennsylvania State University (2012)

B.A. Biology (minor Philosophy)

         Oberlin College (2004)


Research Interests

My research investigates how ecological principles can be used to design productive agricultural systems that conserve the natural resources upon which agriculture ultimately depends. Invertebrates are a critical part of agroecosystems, and much of my work focuses on how farming practices can conserve populations of beneficial invertebrates (predators, pollinators, decomposers) while minimizing pest populations. I employ diverse tools ranging from field experiments to molecular techniques to data synthesis.

In the Grozinger Lab, I am working with collaborators on several interrelated projects to understand how populations of managed and wild bees and their pollination services are influenced by landscape composition. Currently I am working with several public datasets and information provided by beekeepers to better understand how bees are influenced by features of their surrounding landscape, including patterns of pesticide use.



Douglas, M. and J. Tooker. 2016. Meta-analysis reveals that seed-applied neonicotinoids and pyrethroids have similar negative effects on abundance of arthropod natural enemies. PeerJ 4:e2776; DOI 10.7717/peerj.2776.

 Douglas, M. and J. Tooker. 2015. Large-scale deployment of seed treatments has driven rapid increase in use of neonicotinoid insecticides and preemptive pest management in U.S. field crops. Environmental Science & Technology 49(8): 5088-5097.

Douglas, M., J. Rohr, and J. Tooker. 2015. Neonicotinoid insecticide travels through a soil food chain, disrupting biological control of non-target pests and decreasing soya bean yield. Journal of Applied Ecology 52(1): 250-260. [Editor’s Choice/Cover]

Shipanski, M., S. Bailey, M. Barbercheck, M. Douglas, D. Finney, K. Haider, J. Kaye, A. Kemanian, D. Mortensen, M. Ryan, J. Tooker, and C. White. 2014. A conceptual framework for evaluating multifunctionality of cover crops in agroecosystems. Agricultural Systems 125: 12-22.

Wimp, G., S. Murphy, D. Lewis, M. Douglas, R. Ambikapathi, L. Van Tull, C. Gratton, and R. Denno. 2013. Predator hunting mode influences patterns of prey use from grazing and detrital food webs. Oecologia 171(2): 505-515.

Douglas, M. and J. Tooker. 2012. Slug (Mollusca: Agriolimacidae, Arionidae) ecology and management in no-till field crops, with an emphasis on the mid-Atlantic region. Journal of Integrated Pest Management 3(1): C1-C9.

Aggarwal, R., et al. 2011. Permanent genetic resources added to Molecular Ecology resources database 1 August 2010 – September 2010. Molecular Ecology Resources 11: 219-222. [Bulk publication including details on the development of microsatellite primers for two planthopper species, contributed by Sheridan, C., M. Douglas, L. Power, G. Wimp, and M. Hamilton.]