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Press Resources for Release on April 6, 2012 (BioScience LTER)

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Questions? Contact the HF Outreach Manager, Clarisse Hart, at; 978-756-6157.

Northeast Regional Press


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Harvard Forest Hemlock Tower 








From this 71-foot eddy-flux tower in a 200-year-old hemlock forest, Harvard Forest scientists have measured carbon dynamics and other ecosystem processes for more than 20 years as part of the Long-Term Ecological Research program. Located in a 35-hectare Smithsonian Institution Global Earth Observatory plot and part of the core measurements for the National Ecological Observatory Network, this tower is a focal point for studies of the eastern hemlock tree and its impending demise from the invasive hemlock woolly adelgid, as well as phenology studies of succeeding hardwoods. 
Photo: David Foster

Additional Resources


National Press: BioScience, April 2012


Supporting Research Papers

David R. Foster

Long-Term Ecological Research in a Human-Dominated World
G. Philip Robertson, Scott L. Collins, David R. Foster, Nicholas Brokaw, Hugh W. Ducklow, Ted L. Gragson, Corinna Gries, Stephen K. Hamilton, A. David McGuire, John C. Moore, Emily H. Stanley, Robert B. Waide, and Mark W. Williams

Science and Society: The Role of Long-Term Studies in Environmental Stewardship
Charles T. Driscoll, Kathleen F. Lambert, F. Stuart Chapin III, David J. Nowak, Thomas A. Spies, Frederick J. Swanson, David B. Kittredge Jr., and Clarisse M. Hart

Scenario Studies as a Synthetic and Integrative Research Activity for Long-Term Ecological Research
Jonathan R. Thompson, Arnim Wiek, Frederick J. Swanson, Stephen R. Carpenter, Nancy Fresco, Teresa Hollingsworth, Thomas A. Spies, and David R. Foster

Past, Present, and Future Roles of Long-Term Experiments in the LTER Network
Alan K. Knapp, Melinda D. Smith, Sarah E. Hobbie, Scott L. Collins, Timothy J. Fahey, Gretchen J. A. Hansen, Douglas A. Landis, Kimberly J. La Pierre, Jerry M. Melillo, Timothy R. Seastedt, Gaius R. Shaver, and Jackson R. Webster

Ecosystem Processes and Human Influences Regulate Streamflow Response to Climate Change at Long-Term Ecological Research Sites
Julia A. Jones, Irena F. Creed, Kendra L. Hatcher, Robert J. Warren, Mary Beth Adams, Melinda H. Benson, Emery Boose, Warren A. Brown, John L. Campbell, Alan Covich, David W. Clow, Clifford N. Dahm, Kelly Elder, Chelcy R. Ford, Nancy B. Grimm, Donald L. Henshaw, Kelli L. Larson, Evan S. Miles, Kathleen M. Miles, Stephen D. Sebestyen, Adam T. Spargo, Asa B. Stone, James M. Vose, and Mark W. Williams

The Disappearing Cryosphere: Impacts and Ecosystem Responses to Rapid Cryosphere Loss
Andrew G. Fountain, John L. Campbell, Edward A. G. Schuur, Sharon E. Stammerjohn, Mark W. Williams, and Hugh W. Ducklow


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Penguins at Palmer LTER








Adélie penguins near the Palmer Station LTER site in Antarctica. The local population has declined by 80% since 1975 in response to climate change.
Photo: Zena Cardman


northern spotted owl at the Andrews










Northern Spotted Owls and their prime habitat, old-growth forest, have been the subject of intensive investigation at the Andrews Forest LTER site for 40 years. This research has been a foundation for transformation of federal forest policy from an emphasis on timber production to protection of biodiversity. 
Photo:  A. Levno, US Forest Service


Fire experiments at Konza Prairie







Watershed-scale fire experiments at the Konza Prairie LTER site.
Photo: Alan K. Knapp

Harvard Forest research








Summer student researchers at the Harvard Forest LTER site measure carbon dioxide in an experimental plot.
Photo: Aleta Wiley

Central Arizona-Phoenix site










Long-term monitoring allows scientists at the Central Arizona-Phoenix LTER to study change over time in urban desert parks.
Photo: Tim Trumble

California Current Ecosystem research










Scientists from the California Current Ecosystem LTER site launch a zooplankton monitoring instrument.
Photo: McOwiti O. Thomas


Freshwater Futures: A 2-minute preview from Freshwaters Illustrated's forthcoming short film series, Freshwater Futures, highlighting watershed and ecosystems research by NSF Long Term Ecological Research sites across the country. Supported by the National Science Foundation.


Also see the extended version currently on display in the Ecological Reflections exhibit at National Science Foundation headquarters, featuring Coweeta, Harvard Forest, Andrews, and North Temperate Lakes LTER sites.

Additional Resources

LTER Network News