Lost 'botanical hotspot' identified at University of York campus
One of the special plants once found at Heslington Fields, the marsh helleborine orchid. The grounds, now occupied by the University of York's Campus East and parts of Campus West, were once part of Heslington Fields, an open-field system rich in rare plants, fens and wetlands.
Nestled on the University of York's Campus East and West lies a forgotten landscape that once captivated world-renowned botanists. This area, formerly part of Heslington Fields, boasted a rich array of rare plants, fens, and wetlands before the land was enclosed for farming in 1857, transforming it into the current University campus.
A recent study by University of York researcher Dr. Peter Mayhew, published in The Naturalist, sheds light on the site's significance as a biodiversity hotspot. Before enclosure, over 90% of Heslington Fields was dedicated to growing crops like cereals, potatoes, flax, and mustard. However, the unplowed grassy strips between fields and wet glacial hollows, or kettle holes, provided ideal habitats for delicate wild species.
The flora found at Heslington Fields was exceptional, even by Victorian standards, and many species now considered rare in Great Britain were documented there. As agricultural practices intensified in the latter half of the 1800s, many of these species declined rapidly across the UK due to the introduction of modern fertilizers, herbicides, and automated seed cleaning.
Dr. Mayhew has successfully recreated some of these habitats on Campus East as part of the University's ecological management. He has also developed a self-guided walking trail for the public to explore the site's history and natural wonders. The site's unique geology, situated on the York moraine, created a dramatic mix of dry soils and waterlogged bogs within a small area, fostering an unusual mix of plant diversity.
Conservationists are now exploring the possibility of reintroducing historically recorded species to the campus grounds by sourcing seeds from regional seed banks. Species like devil's-bit scabious, bogbean, and yellow loosestrife have already naturally returned or been planted in created wetland areas within the campus. By encouraging visitors and local residents to monitor the site's recovery using the iNaturalist app, University researchers hope to aid future conservation efforts and protect rare plants from regional extinction.
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