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Recent Harvard Forest post-doc Jim Karagatzides has published two papers based on his research with Harvard Forest Senior Ecologist Aaron Ellison. In the first, using stable isotope tracers in the field, Jim showed that Sarracenia purpurea can acquire nitrogen directly from amino acids, bypassing the inorganic nitrogen cycle on which

Harvard Forest Senior Ecologist Aaron Ellison spent a week at the beach, working with Parks Canada and the staff of Prince Edward Island (PEI) National Park on developing a monitoring protocol for using ant diversity as an indicator of ecological integrity of this coastal national park. The absence of exotic ants on PEI, but their presence in nearby Nova Scotia,

In this study, which was part of Shannon Pellini's (Harvard Forest Postdoctoral fellow) dissertation work under the advisement of Jessica Hellmann at the University of Notre Dame, Shannon and colleagues performed field and laboratory reciprocal translocation experiments with skipper (Erynnis propertius) and swallowtail (Papilio zelicaon) butterfly populations from Oregon and Vancouver Island. The aim of the study was to determine

Harvard Forest scientists Glenn Motzkin, David Orwig, and David Foster recently used a combination of dendroecological, historical, and field studies to examine the long-term history, development, and vegetation dynamics of 3 dwarf P. rigida (pitch pine) locations in the southern Taconic mountains of southwest Massachusetts and northwestern Connecticut. All three sites supported communities dominated (80 to 98% relative importance) by