Deglaciation, Earth crustal behaviour and sea-level changes in the determination of insularity: a perspective from Ireland

Insularity is defined here in terms of the presence or absence of land-bridge connections between adjacent landmasses. New palaeoenvironmental data have emerged in recent years from the Irish Sea and from neighbouring regions. Some of this information, particularly that concerning patterns of Earth crustal behaviour, former ice distributions, deglacial history and sea-level changes, is reviewed. An assessment is given of their significance for possible land-bridge operation at this time. -from Author