December 2019. President Jesse Bellemare convened the 1142nd meeting of NEBC in the Haller Lecture Hall at Harvard University on Saturday, December 7th, 2019. Matt Charpentier introduced the speaker, Dr. Jaclyn Hatala Matthes, who is an Assistant Professor in the Department of Biological Sciences, Wellesley College, Wellesley, Massachusetts. Her presentation was titled, “Forecasting the Ecosystem Impacts of Invasive Insects in Northeastern U.S. Forests.” Dr. Matthes studies herbivory and its effect on net primary productivity in forests, particularly the effect on the carbon cycle and CO2 sequestration. Forest insects and pathogens (FIPs) are transported around the globe through trade networks and thus introduced into new habitats (for example, accidentally in shipping pallets) where native plants lack defenses against them. These FIPs may reduce ecosystem services, create shifts in the invaded ecosystem and have high economic costs,...

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