Marc Abrams
Professor of Forest Ecology and Physiology

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307 Forest Resources Building
University Park, PA 16802 - agl@psu.edu
- 814-865-4901
Research Summary
Community, historical and physiological ecology of tree species; global change biology.
Huck Affiliations
Links
Publication Tags
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Climate Deer Quercus Charcoal Forest Dynamics Odocoileus Virginianus Global Change Paleoecology Oak Eastern United States Pine Pollen Transition Pinus Land Use Loss Vegetation Disturbance Forest Fires Census Data Drought Census North America Coniferous Forests Forest EcosystemMost Recent Publications
A comparison of witness tree and contemporary compositions for old-growth forests at Savage Mountain, Maryland, and secondary forests of the northern Allegheny Mountains
Marc D. Abrams, Brice B. Hanberry, Charles M. Ruffner, 2022, Journal of the Torrey Botanical Society on p. 151-158
Native American imprint in palaeoecology
Marc D. Abrams, Gregory J. Nowacki, 2020, Nature Sustainability on p. 896-897
Reviewing Fire, Climate, Deer, and Foundation Species as Drivers of Historically Open Oak and Pine Forests and Transition to Closed Forests
Brice B. Hanberry, Marc D. Abrams, Mary A. Arthur, J. Morgan Varner, 2020, Frontiers in Forests and Global Change
Does white-tailed deer density affect tree stocking in forests of the Eastern United States?
Brice B. Hanberry, Marc D. Abrams, 2019, Ecological Processes
Global change impacts on forest and fire dynamics using paleoecology and tree census data for eastern North America
Marc D. Abrams, Gregory J. Nowacki, 2019, Annals of Forest Science
A model for longitudinal data sets relating wind-damage probability to biotic and abiotic factors: A Bayesian approach
Kiyoshi Umeki, Marc D. Abrams, Keisuke Toyama, Eri Nabeshima, 2019, Forest Systems on p. 1-12
Witness Tree Records for the Early Colonial Period (1623-1700) of Eastern Virginia
Marc D. Abrams, Sarah E. Johnson, 2019, American Midland Naturalist on p. 115-122
Recognizing loss of open forest ecosystems by tree densification and land use intensification in the Midwestern USA
Brice B. Hanberry, Marc David Abrams, 2018, Regional Environmental Change on p. 1731-1740
Is increased precipitation during the 20th century statistically or ecologically significant in the eastern US?
Brice B. Hanberry, Marc D. Abrams, Joseph D. White, 2018, Journal of Land Use Science on p. 259-268
A regional assessment of white-tailed deer effects on plant invasion
Kristine M. Averill, David A. Mortensen, Erica A.H. Smithwick, Susan Kalisz, William J. McShea, Norman A. Bourg, John D. Parker, Alejandro A. Royo, Marc D. Abrams, David K. Apsley, Bernd Blossey, Douglas H. Boucher, Kai L. Caraher, Antonio DiTommaso, Sarah E. Johnson, Robert Masson, Victoria A. Nuzzo, 2018, AoB PLANTS
Most-Cited Papers
Is climate an important driver of post-European vegetation change in the Eastern United States?
Gregory J. Nowacki, Marc D. Abrams, 2015, Global Change Biology on p. 314-334
Recognizing loss of open forest ecosystems by tree densification and land use intensification in the Midwestern USA
Brice B. Hanberry, Marc David Abrams, 2018, Regional Environmental Change on p. 1731-1740
A regional assessment of white-tailed deer effects on plant invasion
Kristine M. Averill, David A. Mortensen, Erica A.H. Smithwick, Susan Kalisz, William J. McShea, Norman A. Bourg, John D. Parker, Alejandro A. Royo, Marc D. Abrams, David K. Apsley, Bernd Blossey, Douglas H. Boucher, Kai L. Caraher, Antonio DiTommaso, Sarah E. Johnson, Robert Masson, Victoria A. Nuzzo, 2018, AoB PLANTS
A comparative study of physiological and morphological seedling traits associated with shade tolerance in introduced red oak (Quercus rubra) and native hardwood tree species in southwestern Germany
Christian Kuehne, Peter Nosko, Tobias Horwath, Jürgen Bauhus, Marc Abrams, 2014, Tree Physiology on p. 184-193
Reviewing Fire, Climate, Deer, and Foundation Species as Drivers of Historically Open Oak and Pine Forests and Transition to Closed Forests
Brice B. Hanberry, Marc D. Abrams, Mary A. Arthur, J. Morgan Varner, 2020, Frontiers in Forests and Global Change
Native American imprint in palaeoecology
Marc D. Abrams, Gregory J. Nowacki, 2020, Nature Sustainability on p. 896-897
Exploring the Early Anthropocene Burning Hypothesis and Climate-Fire Anomalies for the Eastern U.S
Marc D. Abrams, Gregory J. Nowacki, 2015, Journal of Sustainable Forestry on p. 30-48
Global change impacts on forest and fire dynamics using paleoecology and tree census data for eastern North America
Marc D. Abrams, Gregory J. Nowacki, 2019, Annals of Forest Science
An interdisciplinary approach to better assess global change impacts and drought vulnerability on forest dynamics
Marc D. Abrams, Gregory J. Nowacki, 2016, Tree Physiology on p. 421-427
Does white-tailed deer density affect tree stocking in forests of the Eastern United States?
Brice B. Hanberry, Marc D. Abrams, 2019, Ecological Processes
News Articles Featuring Marc Abrams
Sep 08, 2023
The fall foliage show’s intensity may be all about the next few weeks of weather
The next few weeks of weather may determine the foliage color woodlands in the Northeast and Mid-Atlantic
Full Article
Oct 29, 2021
Climate change is altering the very color of fall foliage
Human decisions about forest management are also having a devastating effect.
Full Article
Oct 08, 2021
Fall foliage in the Philly area may suffer from the unusually warm and wet weather
The next several days should be ideal for morning walks in the Philly region with temperatures in the low 60s, a solid 10 degrees above long-term normals.
Full Article
Oct 07, 2021
Fall foliage could be ruined by summer that won’t quit
The warm, wet conditions persisting into the early days of autumn could dim Pennsylvania’s chances for a great fall foliage season in the coming weeks.
Full Article
Oct 07, 2021
Penn State: Warm, wet autumn could mute, delay foliage in Pennsylvania
Experts with Penn State's College of Agricultural Science say weather conditions will need to be cooler and drier in the next few weeks for Pennsylvania's forests to see the vibrant colors of fall foliage.
Full Article
Oct 06, 2021
Fantastic fall foliage could be ruined by summer that won’t quit
The warm, wet conditions persisting into the early days of autumn could dim Pennsylvania's chances for a great fall foliage season in the coming weeks.
Full Article
Oct 05, 2021
Warm, wet autumn could mute and delay foliage display in Pennsylvania
Because of the warm, wet summer, trees in Pennsylvania are mostly in great shape. But for the state’s forests to exhibit their most vibrant colors, conditions need to be cooler and drier in the next few weeks, according to a Penn State expert.
Full Article
Sep 14, 2020
Penn State professors predict foliage coloration for fall 2020
Marc Abrams has lived in State College for 33 years. Abrams, a Penn State professor of forest ecology and physiology, said he has been called on annually for several years about whether the fall leaves would be as beautiful as years prior, with people picking his brain for his expertise of the foliage.
Full Article
Sep 08, 2020
Fall foliage outlooks are bullish for colors — and leaf-peeping crowds
A refreshing splash of normality is about to enter this disorienting autumn of Zoom classes, quarantines, and masked professors. The annual fall foliage show already is creeping across the woods, and early indications are that it will be more than a pleasant distraction.
Full Article
Sep 07, 2020
Northeast Drought Could Threaten Penn State Fall Foliage Display
Penn State’s fall foliage display might look a little less vibrant and a lot crisper this season. According to university experts, little rain in the long-term weather forecast could threaten Pennsylvania’s usually dynamic fall foliage.
Full Article