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October 1, 2005

Harvard Forest Web Site Highlights Science Behind Autumn Leaf Color Change

Harvard Forest website created by John O'Keefe and 2004 Bullard Fellow, David Lee, Sugar MapleFlorida International University, focuses on leaf color change. The site will provide a central repository for images, references and scientific explanations and theories relating to leaf pigment changes. Though this site focuses on the New England area, the

October 1, 2005

New Harvard Forest Publication: Old-growth Forests on Wachusett Mountain

Forest Ecologist David Orwig documented approximately 100 acres of old-growth forest on the western slopes of Wachusett Mountain State Reservation in Princeton and Westminster, Massachusetts. This report contains information on tree ages and forest composition, as well as recommendations for protecting both the newly discovered forests and nearby existing old-growth forests on the Reservation.

Orwig, D. 2004. 

October 1, 2005

New Harvard Forest Publication: Canopy Impacts Of The Hemlock Wooly Adelgid

Recent Bullard Fellow Bernhard Stadler, from the University of Bayreuth in Germany along with collaborators including Harvard Forest Ecologist David Orwig, examined the impacts of the introduced insect, the hemlock woolly adelgid on spatial and temporal canopy processes in New England hemlock forests. Results suggest that adelgid-induced changes in tree physiology, forest microbiology, and stand-level nutrient cycling occurred well in

September 1, 2005

Harvard Forest Research Develops New Estimate of Old-Growth Forest Acreage Remaining in Massachusetts

A new estimate of the amount of old-growth forest remaining in Massachusetts has been Cold Riverrecently determined based on research currently being conducted by Tony D'Amato, doctoral candidate in Forestry at UMass, and Dr. David Orwig, forest ecologist at the Harvard Forest. This extensive, field-based research builds on the work of previous studies

September 1, 2005

New Harvard Forest Publications: Postdoctoral Fellows Publish On Species Turnover and Tree Migration

Harvard Forest Postdoctoral Fellow Robert McDonald, along with collaborators at the University of North Carolina at Chapel Hill, tested the effectiveness of ecoregions, a common conservation tool that divides the world into discrete regions by their ecology, in representing variation in species composition for mammals, trees, and birds. Their results show that, for any particular taxonomic group, most ecoregion boundaries

August 1, 2005

Harvard Forest Master's Student receives Honorable Mention for Outstanding Thesis in the Biological Sciences

Brooks Mathewson, Masters' student in forestry, has been awarded the Dean's Prize Eastern Redback Salamanderfor Outstanding Thesis in the Biological Sciences, receiving an Honorable Mention for his research at the Harvard University Extension School Masters of Liberal Arts Program. Brooks' thesis advisors were Harvard Forest ecologists Betsy Colburn and David Foster, and Harvard

August 1, 2005

Forests in Time: Now Available in Paperback

"Forests in Time represents the cutting edge of efforts to create a truly historical approach to ecological science, and should be read by anyone who cares about the past, present, and future of terrestrial ecosystems."

- William Cronon, Author of Changes in the Land and Nature's Metropolis

"Forests in Time: The Environmental Consequences of 1000 Years of Change in New England", David

August 1, 2005

New Harvard Forest Publication: Historical Human Impacts on Walden Pond

Multi-proxy analysis of a sediment core spanning 1600 years from Walden Pond, Massachusetts (USA), reveals substantial changes in the nutrient status over the past ∼250 years resulting from anthropogenic impacts on the lake and watershed. Following a period of environmental stability from about 430 AD to 1750 AD, the abundance of the diatom Cyclotella stelligera increased, the chrysophyte cyst to diatom ratio decreased,

August 1, 2005

New Harvard Forest Publication: Nutrient Limitation and Stoichiometry In Carnivorous Plants

Harvard Forest Senior Ecologist Aaron Ellison, along with University of Vermont Professor Nick Gotelli and his graduate students Amy Wakefield and Sarah Wittman examined Ecology August 2005 Covernutrient stoichiometry of northern pitcher plants fed supplemental prey. Their results suggest that under current conditions of high nitrogen deposition in the northeast that pitcher plants are

July 1, 2005

Local Flora Inventory

For nearly a century, Harvard Forest has been the focus of a wide range of Flora Inventoryecological investigations, with a strong emphasis on studies of vegetation, disturbance history, and stand dynamics. Little is known of the local flora prior to the establishment of Harvard Forest in 1907. Hugh Raup developed the first checklist

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