The science behind the woods: how evidence guides our work at Greno Woods16 March, 2026 16 March, 2026 When people walk through Greno Woods nature reserve they see towering trees, birdsong, and miles of woodland trails. Behind the scenes, another kind of work is happening quietly across the reserve. Our evidence team is gathering the data that helps us understand how the woodland is changing and what wildlife needs to thrive here. Spanning more than 180 hectares on the northern edge of Sheffield, Greno Woods is one of the largest reserves cared for by Sheffield & Rotherham Wildlife Trust. It is an ancient woodland landscape that supports a remarkable variety of species, from woodland birds and butterflies to reptiles and rare plants. To look after a place like this properly, we need good evidence. Understanding the woodland Our evidence team works across the reserve to monitor habitats, wildlife and environmental changes. Through surveys, mapping and long term monitoring, they help answer key questions: Which species are thriving, and which need support How habitats such as heathland, streams and woodland rides are changing How climate pressures like flooding, drought and wildfire risk are affecting the site This information shapes every management decision we make. Tracking wildlife © Chris Gomersall/2020VISION Monitoring wildlife helps us build a clearer picture of the health of the woodland. Previous surveys have recorded at least fifty bird species in Greno Woods, including great spotted woodpecker, treecreeper and willow warbler. Alongside birds, our teams also record insects, plants, fungi and reptiles. These records help us spot trends over time and ensure that conservation work benefits as many species as possible. Evidence that leads to action The data collected by our evidence team feeds directly into practical conservation work. For example, research into water movement and flooding risk has helped shape natural flood management features across the woodland, including ponds and leaky dams that slow the flow of water and create valuable wetland habitat for amphibians and insects. Monitoring also helps guide woodland restoration, ensuring that management gradually shifts the woodland towards a healthier mix of native species. Why it matters Conservation works best when it is guided by evidence. The work of our evidence team and the dedication of our volunteer surveyors allows us to: understand the changing health of the woodland respond to threats such as climate change and disease measure whether conservation projects are working Most importantly, it helps ensure that Greno Woods remains a thriving home for wildlife and a special place for people for generations to come. Explore the StoryMap: You can discover more about the monitoring and evidence work taking place at Greno Woods in our interactive StoryMap. Explore the Greno Woods StoryMap Post navigation Older South Yorkshire’s push for more trees