The award acknowledges the work Jessica undertook during her PhD to improve how we monitor change in ecosystems at local to global levels. Her research involved reviewing how ecosystem change is measured in ecosystem risk assessments, developing and testing three indicators to monitor trends in ecosystems at local to global scales, and developing a guide to capturing uncertainty in indicator trends. The three indicators were developed alongside the Red List of Ecosystems team – Prof. Emily Nicholson, Dr Lucie Bland, Prof David Keith and others – and include the Red List Index of Ecosystems, Ecosystem Health Index, and Ecosystem Area Index. The indicators aim to improve our understanding of the status of ecosystems and to support ecosystem conservation and management worldwide. They capture changes in risk to ecosystems and the spatial distribution and health of ecosystems and have recently been accepted by the Biodiversity Indicator Partnership as global policy indicators for the post-2020 global biodiversity framework.