“…Osborne, 1971;Coope, 1981;Osborne, 1981;Hall & Kenward, 1990;Buckland et al, 1994;Kenward & Hall, 1995;Buckland et al, 1996;Smith, Osborne & Barrett, 1997), as well as providing opportunities for investigation of wider archaeological and biogeographical issues (e.g. Buckland, 1988;Buckland & Sadler, 1989;Kenward, 1997;Dobney et al, 1998). They also provide an invaluable, but barely exploited, resource for more purely ecological research, for example in determining how insect communities have adapted to human modification of the environment through time, and in studies of the effects of the introduction of new species.…”