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March 1, 2007

New Harvard Forest Publications: Historical Land-Use And Its Impacts On Coastal Southern New England

Von Holle & Motzkin (2007) examined how previous land use and current biotic and environmental properties influence the abundance and distribution of nonnative plant species across coastal upland habitats of southern New England and adjacent New York. They found that the modern distribution of nonnative plants is influenced by multiple, interdependent current and historical factors. Open-canopy communities, such as grasslands,

March 1, 2007

Harvard Forest teams with local land trust and land owners to protect adjacent forest land.

The Harvard Forest has partnered with Mount Grace Land Conservation Trust, Keith Ross of LandVest, state conservation agencies and Protected Lands Maplocal land owners to permanently protect nearly 170 acres of forest in two large parcels adjacent to the Prospect Hill tract. This project advances our goal of maintaining the integrity of Harvard

March 1, 2007

Annual Harvard Forest Ecology Symposium

The eighteenth annual symposium will be held March 27, 2007 at the Harvard Forest. The symposium will focus on the expanding horizons in long-term ecological research: synthesis across the New England region and disciplinary boundaries.

February 1, 2007

New Harvard Forest Publication

Climate Change affected major forest ecosystems dynamics

The mid-Holocene decline of eastern hemlock is widely viewed as the sole prehistorical example of an insect- or pathogen-mediated collapse of a North American tree species and has been extensively studied for insights into pest–host dynamics and the consequences to terrestrial and aquatic ecosystems of dominant-species removal. We report paleoecological evidence implicating climate as

February 1, 2007

Harvard Forest in the Media

WBUR Radio recently visited Petersham and interviewed two Harvard Forest scientists to discus the infestation of hemlock trees by the Hemlock Wooly Adelgid Lateral Portraitinsect called hemlock woolly adelgid.

The Harvard University Alumni Quarterly Colloquy highlights Harvard Forest as a living laboratory. Read the article. 

February 1, 2007

Harvard Forest Announces New Research Course

In response to a University-wide call to expand small group, experiential study in the sciences, the Harvard Forest will launch a new Student on snowshoescourse and expand its summer research opportunities for Harvard Undergraduates this Spring. The new course, OEB 122 - Field Research in Ecology and Conservation, features

January 1, 2007

New Harvard Forest Publication: Hemlock Seed Banks and Regeneration

Soil seed banks are especially important for forest regeneration in stands with few understory species and individuals. The understory of hemlock (Tsuga canadensis)-dominated stands in New England primarily consists of hemlock seedlings and saplings, but all size classes of hemlock are attacked by the hemlock woolly adelgid (Adelges tsugae). Prior to the initiation of the Hemlock Removal Experiment at the

January 1, 2007

New Funding for Global Change and Carbon Dynamics Research

The Terrestrial Carbon Program of the U.S. Department of Energy recently awarded approximately 1.5 million dollars for continued Sonic ATmeasurements of forest-atmosphere carbon exchange at Harvard Forest. A team of researchers from several departments at Harvard and from the State University of New York at Albany's Atmospheric Sciences Research Center (SUNY-ASRC), led by

December 1, 2006

New Harvard Forest Publication: Ragweed and Historical Climate Change

The environmental drivers behind abundant ragweed pollen in sediments of four southern New England lakes 10,000-8000 years ago were investigated. They found strong evidence that high levels of ragweed pollen were associated with warmer, drier conditions. This conclusion is corroborated by independent lake level and climate reconstructions. Together, these results have implications for future ragweed distribution and abundance, and suggest

December 1, 2006

Report Outlines Funding to Conserve Half of Massachusetts’s Land

Harvard Forest's Wildlands and Woodlands proposal to conserve roughly half of Massachusetts as protected lands has received a boost from a new report detailing seven strategies to finance the ambitious proposal. The new report is the product of a recent Wildlands and Woodlands Conservation Finance Roundtable.

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