Additional file 3: of Spread and establishment of Aedes albopictus in southern Switzerland between 2003 and 2014: an analysis of oviposition data and weather conditions

Aedes albopictus presence in Canton Ticino (southern Switzerland) over the years. The file contains a series of maps for each year from 2003 to 2014. Each map shows for a particular year where ovitraps were positive or negative for Ae. albopictus eggs. A dot represents an ovitrap and is colour-coded according to its status; green indicates the trap was always negative, red shows that eggs were found at least once, purple indicates seasonal establishment (i.e. the trap was repeatedly positive over at least 3 months), and blue indicates the overwintering (i.e. the trap was positive the last control round of a year and the first control round of the following one). Map layers were purchased from the Swiss Federal Office of Topography. (ZIP 20813 kb)