Lowland Meadow at North Wyke farm (IMAGE) University of Cambridge Caption This was one of 24 sites across England where researchers trialled the UK's new biodiversity metric. They found no evidence that a 10% net biodiversity gain calculated using the metric will translate into real-life gains for birds and butterflies - without additional conservation management. Credit Cicely Marshall Usage Restrictions With credit License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.