New Interim Harvard Forest Director Took Reins July 1; Retiring Director Leaves 30-Year Legacy

Noel Michele Holbrook, an accomplished plant physiologist and the Charles Bullard Professor of Forestry at Harvard University, became the eighth director of the Harvard Forest on July 1, 2020. The role is an interim position, with a future search for a permanent director pending.

Retiring director David R. Foster has assumed a new position of Senior Conservationist at Harvard Forest and will remain as a senior lecturer in biology at Harvard, continuing a distinguished career in research and education that includes teaching Harvard’s longest-running Freshman Seminar course. Foster came to Harvard Forest as an ecologist and assistant professor in 1983, and right away began to teach and mentor Harvard students – an effort that has inspired hundreds of future scientists and conservation leaders, many of whom cite Foster’s courses and mentorship as foundational to their careers.

During his time as director, Foster significantly elevated the scope and impact of Harvard Forest research. In 1988, he worked collaboratively with leading scientists across the region to establish the Forest as one of the nation’s first Long-Term Ecological Research (LTER) sites – a highly competitive National Science Foundation (NSF) program that has supported decadal-scale climate and global change studies at the Forest through more than $20 million in grants over the past 30 years. In 2010, Foster oversaw the establishment of the Forest as the Northeast core site for the National Ecological Observatory Network, another major NSF program, as well as the largest North American study site for the Smithsonian’s Global Earth Observatory.

Jonathan Thompson, who succeeded Foster in 2019 as the principle investigator of the Forest’s LTER program, notes that the breadth, real-world impact, and highly collaborative nature of Harvard Forest’s current research programs are in large part a reflection of Foster’s vision. “David’s leadership has brought together world-class scientists who collaborate to understand not only how the forest functions, from microbial processes to landscape-scale change, but also how human decisions drive those changes. David has built lasting bridges with policymakers and professionals across sectors, so the science stays relevant and is regularly put to use on the ground.”

A centerpiece of Foster’s legacy is the Wildlands and Woodlands initiative, which was launched in 2005 as a science-driven vision for the protection and sustainable management of Massachusetts forests. The initiative has grown to encompass the New England region and beyond, with hundreds of organizations, agencies, and colleges and universities working together to advance a regional conservation, science, and policy platform for sustaining forests, farmlands, and communities.

During his tenure, Foster oversaw the expansion of the Forest’s land base by 25 percent to 4,000 acres, a strategic effort to provide a buffer for some of the world’s longest-running forest climate experiments, and to sustain active cattle pastures as ecologically rare open-land habitat. Today, due to Foster’s collaborative work with local land trusts, the Commonwealth of Massachusetts, and Harvard University, more than a third of the Forest’s property is permanently protected from development—and all the land is governed by a long-term master plan that demarcates harvestable stands, wildlands, and land for use in experiments.

“David’s vision for protecting the Forest’s land has provided a model for academia,” says Clarisse Hart, the Forest’s Director of Outreach and Education. “The sale of development rights has protected the land forever and has also created an endowment fund to support future education and research.”

Foster has published dozens of influential books, research reports, and scientific articles on the history, ecology, and conservation of New England. While pursuing this work, he has also led the expansion of the Harvard Forest Archives, acquiring and increasingly digitizing centuries of maps, photography and correspondence; original Harvard Forest research data and notes; and historical forestry, soil, vegetation, and census records.

Holbrook, the Forest’s first female director, will add a new chapter to the Forest’s legacy of high-impact, integrative science and education.

After earning her bachelor’s degree in biology from Harvard, master’s degree in botany from the University of Florida, and Ph.D. from Stanford University, Holbrook returned to Harvard as a faculty member in 1995. Her internationally known plant physiology laboratory is devoted to better understanding the role of plants in water and carbon cycles, with a focus on how individual plants transport water and nutrients, especially in times of drought. Through dozens of publications in top journals, the scientists and students of the Holbrook lab have transformed scientific understanding of water dynamics in a range of plants, from soybeans to vines to oak trees – with many of their field studies based at the Harvard Forest.

Holbrook’s history with the Forest spans more than four decades. As a Harvard College freshman in 1979, she was a student in the Harvard Forest freshman seminar – which remains a popular course today – and during her senior year she worked with Martin Zimmerman, then director of Harvard Forest, to study water transport in the native grape vines that grow throughout the Forest’s property.

Today, Holbrook teaches Harvard courses in plant biology, global food systems, and plant physiology, and also heads the university’s undergraduate program in Environmental Science and Public Policy. For decades, she has brought students out to the Forest for hands-on learning in the field.

“One of the great things about field trips to Harvard Forest,” says Holbrook, “is the time we spend outdoors learning about how trees grow and how forests change over time. It’s fun watching students start to imagine life as a tree. Equally important is the chance to show students the full range of important research that takes place at the Harvard Forest and to explain why understanding forests matters for our collective futures.”

In addition to her university teaching, for which she has won awards at both Harvard and Stanford, Holbrook regularly contributes to outreach programs and life science curriculum for K-12 teachers and students. She also serves on the Executive Committee of Harvard’s David Rockefeller Center for Latin American Studies.

Holbrook says that as a long-time member of the Harvard Forest community, she is thrilled to be officially joining its ranks as director. She adds, “I am committed to doing everything I can to make sure that the Forest’s contributions and impact are sustained and even increase in its second century.”

Study: In a Warming World, New England’s Trees Are Storing More Carbon

A new study in Ecological Monographs synthesizes hundreds of thousands of carbon observations collected over the last quarter century at the Harvard Forest, following the complex stream of carbon through the forest’s air, soil, plants, and water. The scope of the study – as well as its consistency of results – is unprecedented. 

The study reveals that the rate at which carbon is captured from the atmosphere at Harvard Forest nearly doubled between 1992 and 2015. The scientists attribute much of the increase in storage capacity to the growth of 100-year-old oak trees, still vigorously rebounding from colonial-era land clearing, intensive timber harvest, and the 1938 Hurricane – and bolstered more recently by increasing temperatures and a longer growing season due to climate change.

The work was supported by multiple grants from the National Science Foundation, including the Forest’s Long-Term Ecological Research Program, as well as grants from the U.S. Dept. of Energy, USDA-NIFA, and NASA. The study was co-led by Audrey Barker Plotkin, Adrien Finzi, and Marc-Andre Giasson, and co-authored by more than two dozen scientists from 11 institutions, with field measurements over the 25-year study period taken by dozens of students in the Harvard Forest Summer Research Program.

New Grant Supports Public Tweeting Tree Network

A 2-year grant from the Harvard Climate Change Solutions Fund will support a new research, community outreach, and education initiative for the Harvard Forest Witness Tree social media project. Project leaders Tim Rademacher and Clarisse Hart will oversee the deployment and evaluation of three new tweeting trees at environmental education sites in greater Boston, including the Arnold Arboretum.

The kits collect data in real-time on trees’ growth, sap flow, and local weather, and make those data publicly available on social media as accessible messages that users can interact with and ask questions. Following the model of the highly successful Harvard Forest Witness Tree originally developed by Rademacher and colleagues, the new kits will be co-developed and built by Taylor Jones, a post-doctoral fellow and engineer in the Hutyra Lab at Boston University.

The grant will focus heavily on evaluating this new model for climate change education and networked tree science, with hopes for future expansion. Project co-investigator Flossie Chua, director of Project Zero at the Harvard Graduate School of Education, will study the impact of the tweeting trees on climate change education in two middle and high school classrooms. Rademacher will explore the climate research potential of these eco-physiological networks of trees, and Hart will assess the network’s science communication impact using qualitative and quantitative measures of public engagement.

Harvard Forest Makes Strong Showing at ESA

Harvard Forest scientists and REU alumnae, and Harvard Forest’s site-based research are very well-represented at the Annual Meeting of the Ecological Society of America (August 3-6). This year’s meeting is entirely virtual, with all oral talks and posters available on-demand throughout the week. This schedule gives titles and links to all the talks and posters; abstracts are publicly available, but you need to register for the meeting to listen to the talks or view the posters. Listeners and viewers also can leave comments and questions that the presenters will respond to asynchronously. Some of the sessions will also have live 30-minute Q&A sessions with the presenters; check out the meeting program for more details on these and all other aspects of the meeting. Learn and enjoy!

 Contributed by: Aaron Ellison

 (Photo by Aaron Ellison)

Alternative Scenarios for the New England Landscape

Scenario planning is a rigorous way of asking “what if?” and it can be a powerful tool for natural resource professionals preparing for the future of socioecological systems. Planners often engage with stakeholders to codesign alternative scenarios of land-use change to help plan for an uncertain future.  The collaborators working on the New England Landscape Futures (NELF) project published a paper in the journal Earth’s Future that describes their transparent and reproduceable method for translating participatory scenarios to spatial simulations of future land-cover change. These simulations are the heart of the NELF Explorer—an online mapping tool designed to meet the needs of diverse stakeholders who are interested the future of the land and in using scenarios to guide land-use planning and conservation priorities. 

 

Contributed by: Jonathan Thompson

Paper Citation:

Thompson, J. R., Plisinski, J. S., Lambert, K. F., Duveneck, M. J., Morreale, L., McBride, M., Graham MacLean, M., Weiss, M. Lee L. (2020). Spatial Simulation of Codesigned Land Cover Change Scenarios in New England: Alternative Futures and Their Consequences for Conservation Priorities. Earth’s Future, 8, e2019EF001348. https://doi.org/10.1029/2019EF001348

 

Ongoing Debate: The Role of Climate Versus Fire in Shaping the Pre-European Landscape

HF researchers Wyatt Oswald and David Foster engaged in a lively exchange in the journal Nature Sustainability concerning their paper with Bryan Shuman, Elizabeth Chilton, Dianna Doucette, and Deena Duranleau, Conservation implications of limited Native American impacts in pre-contact New England.  The original article documented that climate rather than people was the predominant force shaping the forested southern New England landscape until European colonists began to clear it in the 1600s.  Newly published comments by Christopher Roos and Marc Abrams and Greg Nowacki on the January 2020 Nature Sustainability drew a reply and an extended commentary by the HF team of ecologists, paleoecologists, and archaeologists that highlighted the need to employ long-term continuous records from pollen, charcoal, and archaeology to interpret the distinctive and highly successful role that Native Americans played in New England over more than ten thousand years.  The reply also underscored the fallibility of the scattered accounts that are commonly relied on by historians and ecologists to interpret Native American land use practices.  These accounts provide anecdotal snapshots of a brief period of cultural devastation and change recorded by colonizing Europeans who were beginning to transform the landscape in myriad ways.

Contributed by: David Foster

(Photograph by Elizabeth Chilton)

Photo caption: Co-authors Dianna Doucette and Deena Duranleau, with Randy Jardin (center), a cultural resources representative of the Wampanoag Tribe of Aquinnah, on one of the Martha’s Vineyard archaeological sites that contributed to the paper in Nature Sustainability.

Harper's Features HF Research in Warming Soil

A vibrant feature in Harper’s Magazine digs into the Forest’s long-term soil warming experiment and the many climate questions scientists are exploring thereThe story was written by graduating Harvard senior Drew Pendergrass, who spent a day at Harvard Forest and many subsequent hours interviewing scientists as part of a Harvard science writing course taught by Michael Pollan.

(Illustration by Lara Harwood)

New Teaching Tool Guides Inquiry in Landscape Change

A college-level lesson plan that leverages long-term Harvard Forest data to explore the future of the New England landscape is now freely available for download and classroom use.

The teaching module, created by Harvard Forest Research Associate Meghan MacLean and piloted in her classroom at the University of Massachusetts, uses the New England Landscape Futures Explorer tool to help students explore the connections between land-use decisions and land-cover change into the future.

Online Resources for Scholars & Educators

Harvard Forest has developed an ever-growing list of online resources for students, educators, and researchers.

Explore:

Second Global Earth Observatory Census Reaches Milestone

The primary work of the second census of the Harvard Forest Global Earth Observatory is complete, with 6,992 new woody stems mapped, tagged, and measured – adding to more than 116,000 stems mapped in the initial census. 

The area is re-censused every 5 years by a dedicated crew of researchers led by Forest Ecologist Dave Orwig. The census tracks not only recruitment of new trees but also tree mortality. The new data reveal that 17,647 woody stems have died since the 2014 census, including more than 3,800 eastern hemlock (Tsuga canadensis) and 97% of all the withe-rod (Viburnum nudum) in the study area. However, the total basal area of the plot still increased by about 12 percent over the 5-year period.

Pending funding, the remaining woody stems in the study area (all in the central beaver swamp) will be censused in winter 2021.

Harvard Forest Remembers Colleague David Kittredge

The lives of countless Harvard Forest staff, students, and colleagues past and present have been enriched by the life of David Kittredge (1956-2020), a great friend of the Harvard Forest and a champion of forests and conservation everywhere.

In addition to a 30-year career as faculty in the Environmental Conservation Department of the University of Massachusetts, for over 20 years, Dave was a Forest Policy Analyst at Harvard Forest, mentoring dozens of students and providing foundational thought and contributions to many research publications and conservation initiatives, including the Wildlands and Woodlands project. He also completed several Charles Bullard Fellowships at the Forest, conducting transformative research on the unique role played by family forest owners in managing and conserving New England’s forests.

His legacy lives on in many continuing projects at Harvard Forest and throughout New England and in the countless lives he touched with his tireless work in forest ecology and conservation.

(Photo by David Foster)

Schoolyard Ecology Featured in "Resilient Forests" Series

The Harvard Forest Schoolyard Ecology program is the newest focus of a year-long multimedia series on resilient forests by Northern Woodlands. The new film features students and teachers at Killingly Intermediate School, a public middle school in Connecticut that has participated in Harvard Forest’s “Our Changing Forests” citizen science program since 2018.

The film follows teachers Mike Morrill and Pamela Ames, their students, and HF Schoolyard Ecology coach Fiona Jevon as they measure trees and identify plant and animal species in their long-term study plot.

38 schools around New England have contributed data to the Our Changing Forests project since it launched in 2015. Our Changing Forests is the newest of four HF Schoolyard Ecology projects that engage students in long-term, hands-on research outdoors. In 2019, more than 4,500 K-12 students collected data for a Harvard Forest project. The Schoolyard Ecology program, now in its 16th year, and is supported by the National Science Foundation’s Long-Term Ecological Research Program, the Highstead Foundation, and generous donors.