The research, led by scientists at the Native Plant Initiative at South Dakota State University and published in the journal People and Nature, took an unusual approach for a field dominated by agronomy and ecology. Rather than focusing primarily on seed biology or production technology, the team applied social science methods, along with resilience and systems thinking, to understand the relationships, values, and institutions that hold the native seed system together. Jennifer Zavaleta Cheek, assistant professor in the SDSU Department of Natural Resource Management, explained that native seed systems face ecological, production, and technological challenges, but that understanding them requires looking beyond infrastructure. Culture, knowledge, economics, and interpersonal trust all shape whether the system can withstand shocks and continue supplying seed over decades, not just seasons.

The study was guided from its inception by the Native Seed Strategy developed by the Northern Great Plains Native Seed Partnership, a collaborative plan that explicitly identified the need to understand the social dimensions of seed supply in order to strengthen collaboration and long-term resilience. Elena Friedman, first author of the paper and a master’s graduate from the program in August 2026, worked alongside Lora Perkins, director of the Native Plant Initiative, and Lauren Redmore, a conservation social scientist with the U.S. Forest Service, to gather the evidence. Their central method was qualitative and intensive: 60 detailed interviews with people involved in every facet of the seed network, from collectors and growers to buyers and land managers. What emerged from those conversations was a picture far more intricate than the researchers had anticipated.

The most striking discovery was that the region does not contain a single native seed system at all. The team had entered the project assuming that one interconnected supply chain served the Northern Great Plains, but the interviews revealed multiple distinct seed systems operating simultaneously in the same geography, each with its own participants, relationships, goals, and rules. This finding has immediate practical consequences. Policies or interventions designed for a hypothetical unified system — subsidies aimed at boosting production, for example, or centralized seed banks — might reach only one network while leaving others untouched, or worse, might disrupt relationships that the designers never knew existed.

Among the distinct networks identified, two stood out in sharp relief: the commercial system and the Tribal system. Participants in the commercial network were oriented around collecting, producing, selling, and using seed for ecological restoration projects, functioning much like a specialized agricultural supply chain with market dynamics, quality standards, and customer relationships. The Tribal system, by contrast, shared the goal of ecological restoration but embedded seed within a much broader community context. Tribal participants use native seeds for food and medicine, and they emphasized the significance of seeds in promoting reciprocity and sovereignty — concepts that have no direct equivalent in a commercial supply chain. In this view, seeds are not commodities to be produced in bulk but relatives and inheritances, carrying obligations of care and exchange across generations.

This distinction matters because previous research, lacking a deep understanding of each group’s goals, practices, and connections to native seeds, might have concluded that integrating the commercial and Tribal systems would benefit both by increasing overall production. Such a recommendation, the SDSU team suggests, would rest on a fundamental misunderstanding. Merging systems with different values and objectives could erode the very relationships and cultural practices that sustain the Tribal network, without delivering meaningful gains to anyone. The finding underscores why social-ecological research — work that treats human communities and natural resources as inseparable parts of one system — is essential before well-intentioned interventions are deployed.

Zavaleta Cheek framed the work explicitly in the language of resilience theory. Building resilience in a native seed system, she argued, is not only a matter of having enough seed or the right storage and production infrastructure. It is equally about strengthening the relationships, knowledge systems, values, and institutions that allow both people and native landscapes to thrive together over time. In resilience terms, a system can appear robust while actually being brittle: abundant seed supply means little if the trust between growers and buyers collapses, if Traditional Ecological Knowledge is lost, or if the institutions governing seed use fail to reflect the communities they affect. The interviews captured precisely these intangible assets, which rarely appear in production statistics but determine whether a system adapts or fractures under stress.

The methodological contribution of the study is also significant. Survey-based and interview-based research of this depth is uncommon in native seed science, where most attention has gone to seed sourcing guidelines, genetic matching of seed to ecoregion, and agronomic techniques for propagating native species. By documenting 60 perspectives across the network, the researchers created something akin to a social map of the seed landscape — a baseline against which future changes can be measured. The work also demonstrates the value of qualitative social science for conservation practice: the surprise of discovering multiple parallel systems would not have emerged from production data alone, which tends to aggregate all seed activity into a single supply curve.

The next phase of the research follows two avenues, mirroring the dual nature of the findings. First, the team will continue investigating the relationships between people, native plants, and resilient landscapes, with a new focus on wild foods and the role they play in shaping resilient food systems — a natural extension of the finding that seeds carry meanings well beyond restoration. Second, with support from the Native Plant Initiative, the researchers hope to partner with specialty crop farmers to produce native seed, aiming to expand production capacity and supply for restoration projects across the region. This second avenue represents a practical test of the study’s insights: any effort to bring new growers into the system will need to respect the distinct networks the research identified rather than assuming a single market to be served.

For the researchers, the ultimate message extends well beyond the prairie states. Plants and landscapes are cultural, Zavaleta Cheek emphasized — what we expect a landscape to look like, which plants we value, and what we consider productive or worth restoring are all shaped by culture and by our relationships with those landscapes. Those values, in turn, influence what societies choose to conserve and restore. As prairie restoration scales up across North America and elsewhere, the SDSU study offers a caution and an invitation: the seed may be the foundation of restoration, but the people who gather, grow, and give meaning to that seed are the foundation of the system itself. Sustaining native landscapes for future generations, the work suggests, means sustaining the human networks that make restoration possible.

Subject of Research: Social-ecological resilience of native prairie seed systems in the Northern Great Plains

Article Title: Plants, people and progress for native prairie seeds

Article References: Plants, people and progress for native prairie seeds. (n.d.). Original publication

Image Credits: AI Generated

DOI: Not provided

Keywords: native seeds, prairie restoration, Northern Great Plains, social-ecological systems, resilience, Tribal seed networks, seed production, South Dakota State University, People and Nature, ecological restoration, seed sovereignty, conservation social science

The research team set out to answer a deceptively simple question: which trees in an endangered population actually produce the seeds that give the species a chance to persist? To find out, they monitored 88 adult Pinus dabeshanensis trees from 2022 to 2024 in the Miaodao Mountains of Anhui Province, home to the largest known natural population of the species. Year after year, they recorded seed production, seed abortion, the number of mature seeds, and the mass of those seeds for every tree in the sample. This kind of long-term, individual-level monitoring is laborious but essential, because population-level averages can hide the enormous differences between trees that the study ultimately uncovered.

The results were striking. Of the 88 adult trees followed across the three-year period, 55 trees, or 62.5 percent of the monitored population, produced no seeds at all during the entire study. Reproduction, it turns out, is the business of a minority. Among the 33 trees that did reproduce, output varied dramatically, ranging from a modest 38 seeds in the least productive individual to an astonishing 11,195 seeds in the most prolific one. That is a nearly 300-fold difference between individual mother trees of the same species growing in the same population, a spread far wider than most conservation models would anticipate.

When the researchers narrowed their focus to mature seeds, the seeds most likely to actually contribute to regeneration, the pattern became even more lopsided. Just six trees, roughly 7 percent of the monitored population, accounted for more than 70 percent of all mature seeds produced. In statistical terms, the distribution of reproductive output was extremely skewed, with a few dominant mothers carrying the reproductive burden for the entire population. Every trait the team measured, including seed production, abortion rate, mature seed number, and mature seed mass, showed significant variation from one individual tree to another, confirming that these differences were consistent and substantial rather than fleeting annual fluctuations.

Seed production alone, however, does not guarantee that a tree’s offspring will make it into the forest. Many pines rely on animals to disperse their seeds, and the fate of a seed after it leaves the cone depends on whether an animal carries it away, caches it in a suitable spot, and fails to eat it. To capture this second stage of the regeneration process, the researchers tagged and tracked 1,500 seeds sourced from five of the most productive mother trees. By following individual seeds, they could measure not just how many seeds each tree made, but how many of those seeds were successfully dispersed into the environment where germination might occur.

The dispersal experiment produced a subtle but important insight. Seeds from each of the five trees had a broadly similar chance of being successfully moved and stored by animals. In other words, the quality of a tree’s seeds, at least in terms of their appeal to dispersers, did not differ dramatically from tree to tree. What mattered instead was sheer quantity. Because dispersal success per seed was roughly comparable across trees, a tree that produced many more mature seeds inevitably contributed far more successfully dispersed offspring to the landscape. The single most productive tree in the tracking experiment contributed 113 successfully dispersed seeds, while two less productive trees managed only 44 and 45 respectively, despite receiving similar per-seed treatment from the animals that moved them.

Taken together, these results reshape the diagnosis of why Pinus dabeshanensis struggles to regenerate. The problem, the study suggests, is not primarily that seeds are being eaten in excessive numbers or failing to spread through the forest. Animals appear willing and able to move the seeds that are produced. Instead, the bottleneck lies upstream, in the extreme inequality of reproductive output among individual mother trees. If most adults produce nothing and a few produce nearly everything, the effective breeding population is far smaller than the census count of adult trees would suggest. This phenomenon, sometimes described in conservation biology as a skewed individual contribution to recruitment, means that genetic diversity and demographic resilience may be concentrated in a very small number of trees, leaving the species vulnerable to the loss of even one or two key individuals.

The practical implications for conservation are direct. Rather than treating all 88 adults as interchangeable members of a protected population, managers can now identify and prioritize the dominant mother trees that actually drive regeneration. For Pinus dabeshanensis, the researchers suggest this could mean collecting seeds specifically from the most productive trees for ex situ storage and replanting programs, giving those key individuals extra protection against damage and disturbance, actively supporting the dispersal of their seeds to suitable sites, and improving the habitat conditions surrounding them so that dispersed seeds have a better chance of establishing. Such a targeted approach concentrates limited conservation resources where they will have the greatest demographic impact, a philosophy increasingly described as precision conservation.

The broader significance of the study extends well beyond a single pine in a single mountain range. Endangered plants around the world are often conserved on the basis of population counts and habitat protection, with little attention paid to how reproduction is distributed among individuals. If the pattern documented here proves common, many recovery plans may be protecting trees that contribute little to the next generation while overlooking the few individuals on which recovery genuinely depends. Identifying dominant mothers, monitoring their output over multiple years, and building conservation actions around them could become a standard step in the toolkit for saving rare plant species. For Pinus dabeshanensis, an ancient pine with a vanishingly small natural range, the message of the study is stark but actionable: the species’ future rests on a handful of trees, and those trees now have names, locations, and a measurable claim on conservation priority.

Subject of Research: Individual variation in seed production and dispersal among mother trees of the critically endangered pine Pinus dabeshanensis

Article Title: Not all trees matter equally: Study identifies key mother trees for endangered species conservation

Article References: Not all trees matter equally: Study identifies key mother trees for endangered species conservation. (n.d.). Original publication

Image Credits: AI Generated

DOI: Not provided

Keywords: Pinus dabeshanensis, mother trees, seed dispersal, endangered species, forest ecosystems, seed production, conservation biology, regeneration, precision conservation, Dabie Mountains, population monitoring, trees