Fordham University            The Jesuit University of New York  

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James Lewis

James Lewis

Professor and Department Chair
of Biological Sciences

Office: LH 160 (RH), Calder 207 (Calder)
Phone: 718 817 3642

B.S., The Pennsylvania State University, Biology, 1989
M.S., The Pennsylvania State University, Ecology, 1989
Ph.D., Duke University, Botany, 1994
Postdoc, National Research Council Resident Research Associate (U.S.
E.P.A., Western Ecology Division), Corvallis, Oregon, 1995–98


Research in my lab focuses on plant and community responses to these factors, and on the mechanisms that regulate responses to these factors. As an example, we are examining the broad impacts of urbanization on plants and communities. Research sites include the Calder Center, Central Park, Black Rock Forest, the New York Botanical Garden, and other preserves and parks in southern New York.

A related project is examining the mechanisms regulating plant responses to environmental factors such as climate change and urbanization. These projects include research on the relative contributions of developmental and physiological processes to plant responses to the environment. A key area of research is disentangling effects of plant age and plant developmental stage on responses to the environment. Much of this work has been funded by the NSF.

Other projects we are collaborating on include research on forest responsesto loss of eastern hemlock (Tsuga canadensis) due to the hemlock woolly adelgid (HWA), an invasive non-native insect. The HWA generally causes extensive hemlock mortality at the stand level within five years of initial invasion. Decline of eastern hemlock may have far-reaching effects because of the unique suite of environmental characteristics associated with hemlock-dominated forests. Some objectives of our research are to examine how forest compositionregulatesthe effects of the HWA on species diversity and productivity, and to examine the effects of changes in productivity on resource transfer between trophic levels. Much of this work has been funded by the USDA competitive grants program.

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