Her work on the effects of climate change on biodiversity has shown that moths on Mount Kinabalu in Borneo had got smaller and moved up the mountain between 1960s and 2000s, a range shift of over 60m. British moths and butterflies respond in different ways to climate change, those species with a varied diet and higher rates of mating (such as the Green carpet and the Small dusty wave) can thrive in increasing temperatures, those such as the Pearl bordered fritilliary and the Silver-studded blue do less well as they a specialist on a few food food plants and only have one generation of offspring a year.