Welcome to my research page! I am a Killam/Biodiversity Postdoctoral Fellow at the University of British Columbia’s Biodiversity Research Centre interested in the ecology and evolution of species coexistence and diversity.
My specific goals fall into three areas:
- life history strategies across taxa, including maternal effects, dormancy, and dispersal, and their ecological consequences in variable environments
- metacommunity ecology and the scaling of ecological processes through space and time
- evolutionary divergence of competitive interactions among populations and species, their functional basis, outcomes for coexistence, and implications for understanding species invasions
Much of my research involves annual plants from mediterranean-climate regions, often in the serpentine meadows of Northern California at the UC McLaughlin Natural Reserve. Serpentine soils are formed by the emergence and erosion of the Earth’s mantle into isolated pockets scattered amongst a matrix of non-serpentine soil. The extreme physical and chemical characteristics of serpentine soils are typically harmful to plant life, yet in many regions, they support a unique and diverse flora of native species that have specialized to tolerate those harmful conditions. This and other features make serpentine-associated plant communities a unique model system for testing spatial questions relevant to coexistence and adaptation, as well as invasion biology and strategies for persistence in extreme variable environments.
While you’re here, please check out my Talks and Posters section, where I have uploaded a number of recent presentations to an interactive slideshare program.
Publications completed or submitted:
Germain, R. M., S. Y. Strauss, and B. Gilbert. The spatial scaling of plant diversity and its ecological determinants: experimental evidence from a global biodiversity hotspot. Submitted to PNAS.
Grainger, T. N., R. M. Germain, N. T. Jones, and B. Gilbert. Predation modifies regional constraints on species distributions in an insect metacommunity. In review at Ecology.
Germain, R. M., T. N. Grainger, N. T. Jones, and B. Gilbert. In revision for the American Naturalist. Frequency-dependent maternal effects across species and environments.
Germain, R. M., J. T. Weir, and B. Gilbert. 2016. Species coexistence: macroevolutionary patterns and the contingency of historical interactions. Proceedings of the Royal Society: B 283:20160047
Jones, N. T., R. M. Germain, T. N. Grainger, A. Hall, L. Baldwin, and B. Gilbert. 2015. Dispersal mode mediates the effect of patch size and patch connectivity on metacommunity diversity. Journal of Ecology 103:935-944.
Germain, R. M. and B. Gilbert. 2014. Hidden responses to environmental variation: maternal effects reveal species niche dimensions. Ecology Letters 17:662-669.
Germain, R. M., J. Johnson, S. Schneider, K. Cottenie, Elizabeth A. Gillis, and A. S. MacDougall. 2013. Spatial variability in plant predation determines the strength of stochastic community assembly. American Naturalist 182:169-179.
Germain, R. M., C. M. Caruso, and H. Maherali. 2013. Mechanisms and consequences of water stress-induced parental effects in an invasive annual grass. International Journal of Plant Sciences 174:886-895.