Proceso de extinción local de Coenonympha pamphilus (Linnaeus, 1758) (Lepidoptera, Nymphalidae) en el este y sudeste de la península ibérica

Abstract

The species Coenonympha pamphilus (Linnaeus, 1758) (Lepidoptera, Nymphalidae) is a diurnal butterfly considered a common and generalist species. More than 80,000 records for the Western Palaearctic and more than 3,000 for the Iberian Peninsula have been analysed, showing that there has been an exponential increase in the records of this species in the last decade. However, the number of records has decreased in the southeast of the Iberian Peninsula. Therefore, species distribution models have been carried out to explain this change in its current distribution. The models and analyses carried out indicate that aridity has an effect on the distribution of C. pamphilus, causing it to retreat towards the centre and west of the peninsula, probably because, being a polyvoltine species, with more generations at lower altitudes, C. pamphilus would not find its available resource (different species of Poaceae) in drier areas, as the vegetation becomes parched in the summer months, making the development of second and successive generations impossible.