The settlements in Western Britain and Ireland which are earliest known to us from the chamber tombs have been ascribed to movements up Atlantic trade routes from the Mediterranean before the middle of the 2nd millennium. Such movements at so early a date must be conceded to be surprising; but the broad case for believing in them is a cogent one, and earlier suggestions that the chamber tomb cult implied only missionary settlers, or even that the cult was transmitted without movement of population at all, have rightly been discarded. None the less it is far from easy to visualise precisely the processes of settlement and trade, and the thesis has hardly yet been critically tested. It is the purpose of this paper to attempt as precise an account as can be given of the settlements established in Scotland in the 2nd millennium, and of the trade which these settlements developed. As a preliminary, attention will be called to certain conditions of primitive trade, settlement and transport as a help in judging the conditions likely to have applied in Northwest Europe in the 2nd millennium. Since the level of culture to be inferred for the early settlements is one of the questions which this paper must discuss, these considerations can be no more than suggestive, yet they should at least help to free us from presumptions which we might otherwise too readily import from the conditions of trade, settlement and transport with which we are immediately familiar.
Upwelling systems in the migration ecology of Roseate Terns (
Sterna dougallii)
breeding in northwest Europe