Body Size, Aerial Dispersal, and Origin of the Pacific Land Snail Fauna

Abstract

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Cryptic diversity, molecular phylogeny and biogeography of the rock- and leaf litter-dwelling land snails of Belau (Republic of Palau, Oceania)

“…Pacific diplommatinids are found in the Philippines, Melanesia, Micronesia (including the Caroline and Mariana Islands) and in the east through Tonga and Samoa (Solem 1968). Although dispersal mechanisms for Pacific land snails are not well understood or documented, wind transport may play an important, though generally unappreciated, role in the dispersal of tiny snails ( Vagvolgyi 1975;Kirchner et al 1997). Diplommatinid species richness in the Pacific attenuates from west to east, though incomplete knowledge of the Pacific fauna makes quantification of this trend impossible.…”

Dispersal of terrestrial gastropods by birds during the nesting period

“…Birds of numerous species bring snails to their chicks as food (AKRAMOVSKIY 1970, KISS et al 1978, KORNYUSHIN et al 1984, BEREZANTSEVA 1997, BELSKIY et al 1998, ALLEN 2004, ZEMO-GLYADCHUK 2004, ROSIN et al 2011). However, data on the distances over which the snails are carried by birds are scarce (KIRCHNER et al 1975, VAGVOLGYI 1975, 1978. Here we provide more information on the distances over which terrestrial gastropods can be dispersed by birds.…”

“…Not only wide roads but even narrow forest paths may turn out to be impenetrable barriers for snails. Therefore, passive dispersal is of special importance for them -they can be carried by wind, water, mammals, birds, and people (REES 1965, DUNDEE et al 1967, VAGVOLGYI 1975, 1978, SHIKOV 1977, 1981, FISHER et al 1996, KIRCHNER et al 1997, DÖRGE et al 1999, HORNUNG et al 2003, KAWAKAMI et al 2008, BEINLICH & PLACHTER 2010, MACIOROWSKI et al 2012.…”

Future of biodiversity in the Barents Region

“…It is thus questionable whether species will be able to reach their full potential extent of occurrence in future. Nevertheless, species are able to colonize large areas by means of passive and aerial dispersal (Hausdorf 2000;Vagvolgyi 1975). Range shifts of terrestrial gastropods will alter species diversity and abundance, which can have far reaching consequences for agricultural management as they can damage crops.…”