China’s Living Fossils Under Threat as Habitat Loss and Online Trade Accelerate Cycad Decline

Cycads, the ancient lineage of seed plants that has persisted for more than 300 million years since the Carboniferous Period, are facing an intensifying crisis in China, where roughly 20 species remain in the wild. A new field-based assessment, combining on-the-ground surveys, systematic monitoring of e-commerce platforms and social media from 2022 to 2024, and a synthesis of conservation status data, documents how habitat destruction from infrastructure development and agricultural conversion, together with a booming unregulated online trade in mature specimens, is pushing these living fossils toward local extinction. The findings arrive despite the fact that all Chinese Cycas species have been listed as national first-class key protected plants since 2020, receiving the highest level of legal protection available under Chinese legislation.

The scale of the global problem provides sobering context. Approximately 70 percent of cycad species worldwide are classified as threatened, making them one of the most imperilled major groups of organisms on Earth. The IUCN Red List of Threatened Plants has designated about two-thirds of the world’s extant cycad species as threatened, and almost all of China’s cycad species are listed as threatened or near threatened. Some have been classified as Plant Species with Extremely Small Populations, a national designation reserved for species on the very edge of disappearing. Most of China’s remaining cycads are confined to narrow, disjointed ranges in the south-western and southern regions of the country, where they persist in small, fragmented populations whose limited genetic diversity may accentuate their vulnerability to local extinction.

Field investigations conducted across several regions where cycad populations are known to occur, including Hainan Jianfeng Mountain, reveal that major infrastructure projects have directly destroyed or fragmented several populations, particularly in mountainous regions where many endemic species occur. Road networks and hydropower facilities have carved into cycad habitats, and the researchers note that large-scale infrastructure projects, together with their collateral impacts, can potentially wipe out a notable portion of a species’ range. The construction of a hydropower station in Hainan Jianfeng Mountain has impacted local Cycas populations, a development that mirrors similar cases worldwide, including habitat destruction of Encephalartos populations in South Africa caused by human interference.

Agricultural expansion has compounded the losses. Traditional cycad habitats have been converted into commercial plantations and farmlands, and the survey teams photographed orchards planted over former cycad sites, with mango trees occupying ground where adult cycads once grew. In some cases, isolated adult plants and seedlings survive only at the edges of orchards, and resprouted cycads were documented after cutting, evidence that the sites were once suitable habitat. Such conversion does not merely eliminate existing plants; it disrupts critical ecological processes, including pollinator relationships and natural recruitment patterns, and can fragment an original species range into multiple small, isolated subpopulations with reduced genetic diversity and exchange, threatening long-term population viability.

The biology of cycads makes this fragmentation especially dangerous. Their seeds are relatively large and heavy, with limited dispersal distances, which can trap remnant plants in dismembered and disjointed pockets of habitat. Vertebrate dispersers may be unable to traverse the wide distances and stressful conditions between these pockets, and habitat degradation or destruction is likely to stifle or eliminate the companion biotic dispersers on which the plants depend. As a result, the natural regeneration ability of isolated subpopulations can be critically compromised. The excessive collection of cycad seeds for horticultural purposes further diminishes the living seed bank and aggravates the reproductive decline of these contracted and dispersed ranges.

The rise of e-commerce platforms has dramatically accelerated the unregulated collection and trade in Chinese cycads, creating what the researchers describe as unprecedented challenges for conservation. Online marketplaces have become the primary channel for the unregulated trade of these protected species, with sellers using sophisticated methods to avoid conservation monitoring. The systematic monitoring of online platforms between 2022 and 2024, using keywords related to cycad species and variants of their common names, revealed an alarming volume of cycad specimens advertised online, often marketed as rare collections, collected from wild populations or disguised as legally sourced plants. Most sellers monitored during the study claimed in their product descriptions that the plants were wild-collected. This pattern reflects global trends, similar to the surge in unregulated collection of South African cycads through social media platforms.

Particularly concerning is the trade’s preference for mature specimens, which can fetch higher prices but are also the most valuable individuals for population survival. Adult cycads were prominently advertised alongside saplings, seedlings and even germinated seeds. The targeted removal of reproductive adults has devastating consequences for population dynamics, because cycads grow slowly and their long reproductive cycles mean that replacing these individuals can take decades. Seed and seedling harvesting can also eliminate the chances of natural regeneration entirely, hollowing out the next generation of wild populations even where adult plants remain standing.

In response to these findings, the researchers propose a multi-tiered conservation framework centred on ecosystem-level protection. Priority should be given to establishing buffer zones around existing cycad populations, extending at least one kilometre beyond known populations to maintain ecological connectivity and protect pollinator communities, particularly in areas where infrastructure development is planned. Environmental impact assessments must specifically include cycad population assessments before any infrastructure projects are approved in potential cycad habitats. The authors also call for a national cycad habitat restoration programme focusing on degraded sites with historical cycad populations, prioritising the restoration of native vegetation communities that support cycad recruitment and establishment.

Community engagement and technology feature prominently in the proposed strategy. Local communities would be empowered through a Cycad Safeguarding Network, a society-based organisation providing economic incentives for habitat protection while building local conservation capacity. These networks could integrate traditional ecological knowledge with scientific monitoring protocols, creating sustainable livelihoods through cycad population monitoring, habitat restoration and authorised seed collection for legitimate propagation programmes, an approach modelled on successful community-based conservation projects for endangered plants in Indonesia. On the enforcement side, the researchers recommend a specialised conservation monitoring unit employing predictive analytics, artificial intelligence and advanced image recognition algorithms to automatically detect cycad listings across multiple online platforms, pointing to the success of similar technologies in combating the illegal trade in pangolin scales.

To close the loophole that allows illegally collected plants to be laundered into legitimate markets, the study proposes a digital tracking system combining DNA barcoding with blockchain technology. Each authorised cycad plant or plant part would be assigned a unique digital identifier linked to its genetic profile and chain-of-custody information, allowing instant verification of legal specimens, an approach adapted from timber tracking systems proven effective elsewhere. Complementary measures include a national cycad conservation coordination mechanism involving forestry departments, research institutions, customs and law enforcement; strengthened public education through outreach to communities, enthusiasts and policy-makers along with school-based environmental programmes; deeper international cooperation through active participation in CITES enforcement; and the promotion of artificial propagation and legal nursery operations to sustainably meet market demand and reduce pressure on wild populations. The authors frame the preservation of China’s cycads not merely as a conservation challenge but as a test of how science, technology, policy and community engagement can combine to protect Earth’s botanical heritage, warning that today’s actions will determine whether future generations inherit viable populations of these remarkable species or merely their fossils and memories.

Subject of Research: Threats to China's wild cycad populations from habitat destruction and unregulated online trade, with proposed conservation strategies

Article Title: Safeguarding China’s threatened cycads: Strategies to combat alarming habitat degradation and anthropogenic collection pressure

Article References: Xie, C., & Jim, C. Y. (2025). Safeguarding China’s threatened cycads: Strategies to combat alarming habitat degradation and anthropogenic collection pressure. Nature Conservation, 59, 89-99. https://doi.org/10.3897/natureconservation.59.154554

Image Credits: AI Generated

DOI: 10.3897/natureconservation.59.154554

Keywords: cycads, Cycas, China, habitat destruction, online trade, conservation, biodiversity, endangered plants, e-commerce monitoring, DNA barcoding, protected species, plant extinction