“…In fact, individual foraging areas in our study were significantly smaller than in Aihartza et al (2003: table 4) (U-test = 16, n 1 = 7, n 2 = 13, P < 0.05). Values close to or above 10 km have been recorded for bat species with a high aspect ratio (Barclay, 1989;Shiel et al, 1999;Barclay et al, 2000) or with a low aspect ratio but a large size (Arlettaz, 1995). Bats similar in size or in aspect ratio to R. euryale, however, travel shorter distances (e.g., Racey and Swift, 1985;Adam et al, 1994;Duvergé and Jones, 1994;Entwistle et al, 1996;Bontadina et al, 1999).…”