Synchronisation of egg hatching of brown hairstreak (Thecla betulae) and budburst of blackthorn (Prunus spinosa) in a warmer future - H. H. de Vries; S. H. Ens; G. de Graaf; L. Teunissen; R. van der Velde; L. Vogelaar; A. Winterink; M. E. Visser (Journal of Insect Conservation, 2011)