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An Important Community In Restoration Efforts To Protect The American Chestnut Tree | Science Trends

An Important Community In Restoration Efforts To Protect The American Chestnut Tree

The American chestnut once dominated the eastern forests of the United States. A fungal pathogen, Cryphonectria parasitica, was introduced to the US in the early 20th century and within a few decades, the pathogen now known as the chestnut blight killed an estimated 4 billion chestnut trees.

Over the last century, there have been a number of efforts to confer blight resistance and restore the chestnut, including hybridization and backcross breeding programs. Current restoration plans also include the very real potential for using a genetically engineered version of the once beloved tree as part of an integrated restoration plan. Because the goal of planting genetically engineered American chestnut (GEAC) tree would be restoration, the hope is that GE trees will breed with relic wild types, hybrids, and backcrossed individuals and would ultimately restore the chestnut to the eastern forests.

While the GEAC is not engineered to spread any more quickly than wildtype chestnuts, that it is meant to outcross and spread freely at all makes it different from GE plants that are currently being planted and managed for containment. This potential for spread is particularly important in the context of spreading across sovereign tribal boundaries. As such, one important set of stakeholders is the Indigenous communities living in the chestnut’s historic range.

Indeed, the primary sites of research, current field trials, and proposed early plantings of the GEAC are all in the heart of contemporary and traditional territories of the Six Nations of the Haudenosaunee Confederacy of Central and Upstate New York. As part of their outreach, GEAC proponents deploy narratives about its historical importance to Native American communities, suggesting that its restoration should also be important to Indigenous communities. However, the chestnut’s disappearance coincides with major cultural disruption and loss in Haudenosaunee communities, such that virtually no living memories of the chestnut tree survive as part of cultural practice.

The active cultural revitalization efforts within Haudenosaunee communities now, in some ways, parallel ongoing chestnut restoration efforts. Could, therefore, the restoration of a once ubiquitous tree actually support ongoing cultural revitalization efforts within Haudenosaunee communities? Drawing on semi-structured interviews and participant observation of meetings and workshops, we explored this question through the framework of reciprocal restoration, which attends specifically to Indigenous considerations in ecological restoration scholarship and practice. Below outlines how chestnut restoration efforts that use a GE tree stack up against the dimensions of reciprocal restoration.

Language and culture revitalization: Language revitalization is an important and ongoing part of broader cultural revitalization efforts in Haudenosaunee communities. Haudenosaunee scholars and community leaders also conducted their own research to explore how the chestnut features in traditional stories, and to develop a linguistically and culturally accurate representation of the GEAC so elders can make sense of the project through their own worldview.

Customary use: The chestnut tree was once used for medicine and for food, and Haudenosaunee community members communicated complex perspectives about potentially using the GEAC in these traditional ways. Elders want time to investigate the efficacy of the GEAC as medicine, and may be interested in consuming the chestnuts as food and the wood for woodworking.

Cultural keystone species: Cultural keystone species feature centrally in subsistence and spiritual practices. While there is evidence that the chestnut tree was once a part of Haudenosaunee cultural practice, none of the Haudenosaunee leaders that we spoke with recalled meaningful memories of the American chestnut tree.

Traditional ecological knowledge (TEK): TEK offers important biological insights and a cultural framework for environmental problem solving that incorporates knowledge and values that are passed down through generations. While the chestnut has been absent for generations, and traditional knowledge about it has all but vanished, new relationships could lead to new stories in ways that are consistent with Haudenosaunee principles of reciprocity. Moreover, TEK offers both specific examples of knowledge bases to include in restoration processes, as well as alternative frameworks for approaching restoration more broadly.

This alternative perspective disrupts rather mechanistic approaches to restoration — particularly true of species restoration that includes a genetically engineered species — and instead sees humans as one of many beings that contribute to the well-being of a system. A pivotal question thus emerges: does the use of a genetically engineered chestnut represent the ultimate mechanistic view of nature, or can such intense attention to restoring one species be an example of responsible caregiving?

Spiritual responsibility: The GEAC raises a number of questions about spiritual responsibilities. One is ecological restoration a form of spiritual caregiving, and, if so, could a genetically engineered tree serve within the umbrella of this responsibility? Or is restoration altogether a managerial perspective that violates Original Instructions? In the end, while the debate about restoration persists, the broad (with exception) majority of participants do not currently think that the GEAC is consistent with their spiritual responsibilities.

Kincentric relationships: Haudenosaunee participants understand restoration to be more about restoring relationships than restoring species, and have expressed concern that the current approach to chestnut restoration focuses too specifically on returning the form of the tree to the forest and not enough on the functional relationships with the tree. To the community members that we spoke with, however, the chestnut trees are relative strangers. If this is how community members react to the prospect of chestnut restoration, it seems unlikely that chestnut restoration could reflect or strengthen kincentric relationships with the environment.

As new genetic technologies emerge to mitigate global environmental change, nuanced frameworks such as reciprocal restoration are required for understanding how novelty meets tradition, and for creating space where Indigenous perspectives are centered and respected. Ongoing efforts to restore the American chestnut tree, will likely represent the first application of genetically engineered species to spread in the environment, offers instructive insights for other emerging cases of genetic engineering for conservation and restoration.

The chestnut case highlights which dimensions of reciprocal restoration may be foundational to understanding Indigenous perspectives on using genetic engineering for conservation and restoration. While academic scientific approaches to conservation and restoration remain the primary worldview for decision-making, attending to dimensions of reciprocal restoration at critical junctures may create space for affected Indigenous communities to preserve important spiritual responsibilities and kincentric relationships, thus preserve important elements of sovereignty.

These findings are described in the article entitled The genetically engineered American chestnut tree as opportunity for reciprocal restoration in Haudenosaunee communities, recently published in the journal Biological Conservation.

About The Author

S. Kathleen Barnhill-Dilling

I am currently a postdoctoral research scholar at North Carolina State University in the Department of Biological Sciences. I am a social scientist, exploring just environmental decision-making.

Broadly, my research focuses on engaging diverse communities and stakeholders in complex environmental and natural resource governance questions. More specifically, I explore the politics and social science around emerging applications of biotechnology in biodiversity conservation and restoration. I have experience in community-based research, and in co-constructing research agenda with Indigenous environmental leaders.

I situate myself at an intersection of Science, Technology, and Society studies — in particular, public engagement with science and technology — and Environmental Justice. Because I consider myself to be a critical scholar, I focus primarily on qualitative methodologies, including in-depth interviews, focus group facilitation, and participant observation. I also deploy quantitative methods to gain perspective on broader trends.

Jason A. Delborne

Jason Delborne is an Associate Professor of Science, Policy, & Society in the Program in Genetic Engineering & Society, Dept of Forestry and Environmental Resources at North Carolina State University.