Modelling the spiders ballooning effect on the vineyard ecologyE. Venturino, M. Isaia, F. Bona, E. Issoglio, V. Triolo and G. BadinoMath. Model. Nat. Phenom., 1 1 (2006) 133-155DOI: https://doi.org/10.1051/mmnp:2006008