Meadow brown butterflies are common but declining indicators of grassland quality whose welfare depends on grass diversity and management.
Meadow brown larvae that cannot find suitable grass species for feeding face starvation during development. Adults in grassland without sufficient wildflower nectar cannot meet daily energy requirements for flight and reproduction. Appropriate management creating varied sward structure with wildflower diversity provides the habitat resources for individual butterfly welfare across the annual cycle from larval development to adult reproduction.