Kocsis – Hufnagel: Impacts of climate change on Lepidoptera species and communities - 43 - IMPACTS OF CLIMATE CHANGE ON LEPIDOPTERA SPECIES AND COMMUNITIES KOCSIS, M.1* – HUFNAGEL, L.2 1Department of Management and Marketing, Corvinus University of Budapest H-1118 Budapest, Villányi út 29-43, Hungary (phone: +36-1-482-6171; fax: +36-1-482-6331) 2”Adaptation to Climate Change” Research Group of the Hungarian Academy of Sciences – Corvinus University of Budapest H-1118 Budapest, Villányi út 29-33, Hungary (phone: +36-1-482-6261; fax: +36-1-466-9273) *Corresponding author e-mail:
[email protected] (Received 17th December 2010; accepted 28th January 2011) Abstract. In this review, the impacts of climate change on Lepidoptera species and communities are summarized, regarding already registered changes in case of individual species and assemblies, and possible future effects. These include changes in abundance, distribution ranges (altitude above sea level, geographical distribution), phenology (earlier or later flying, number of generations per year). The paper also contains a short description of the observed impacts of single factors and conditions (temperature, atmospheric CO2 concentration, drought, predators and parasitoids, UV-B radiation) affecting the life of moths and butterflies, and recorded monitoring results of changes in the Lepidoptera communities of some observed areas. The review is closed with some theoretical considerations concerning the characteristics of “winner” species and also the features and conditions needed for a successful invasion, conquest of new territories. Keywords: butterflies, moths, abundance, distribution, phenology Introduction Changes in climatic conditions greatly influence the development and range of insects. According to current estimates, the annual average temperature of the Earth increases with 1°C by 2025 and the probable rise in temperature by the end of the century is expected to reach 3°C (IPCC, 2007).