Jonathan Dent is the Nature Reserve Manager of the St Nicholas Field Nature Reserve, which has claims to be “the Green Heart of York”. It is 24 acres of unique green space just a mile from York city centre between an industrial zone and a housing estate. It became a Local Nature Reserve in 2004 to conserve and maintain a diverse range of habitats to sustain wildlife. It now contains a great variety of trees, plants, shrubs, birds and butterflies. Current projects include improving the management of water courses in York’s becks, including the conservation of local water voles.