Recent research has shown that warmer and rainier winters are having a particularly bad effect on some of the insects, including the small tortoiseshell.
Ucwaningo lwakamuva lukhombisile ukuthi ubusika obufudumele nobunezimvula bunomthelela omubi kakhulu kwezinye izinambuzane, kubandakanya ufudu oluncane olunegobongo..