The introduction of farming had far-reaching impacts on health, social structure and demography. Although the spread of domesticated plants and animals has been extensively tracked, it is unclear how these nascent economies developed within different environmental and cultural settings. Using molecular and isotopic analysis of lipids from pottery, here we investigate the foods prepared by the earliest farming communities of the European Atlantic seaboard. Surprisingly, we find an absence of aquatic foods, including in ceramics from coastal sites, except in the Western Baltic where this tradition continued from indigenous ceramic using hunter-gatherer-fishers. The frequency of dairy products in pottery increased as farming was progressively introduced along a northerly latitudinal gradient. This finding implies that early farming communities needed time to adapt their economic practices before expanding into more northerly areas. Latitudinal differences in the scale of dairy production might also have influenced the evolution of adult lactase persistence across Europe.

The fauna of Neolithic Lameiras includes abundant sheep. Many could be securely identified by applying criteria described by the late Joachim Boessneck as well as metrical methods. Sheep bones from Early Neolithic contexts, several dated directly via 14 C, pinpoint the arrival here, 5450 cal BC, of this exotic animal three thousand years after its domestication 5000 km to the east. Thus sheep were transported at a rate of 1,6 km per year-considerably faster than suggested by the 'wave of advance' theory. It therefore seems probable that part of the journey was undertaken by ship. Most of the mammal remains identified at Lameiras belonged to domesticated forms and besides sheep and some goat, they include cattle and pig. Zooarchaeologically there is little difference between Early and Late Neolithic. However the Neolithic spectrum of species contrasts with that from a small assemblage in the underlying Mousterian level as well as other pre-Neolithic assemblages in Portugal. It is possible that in southern Portugal the adoption of animal husbandry was sudden. Measurements of the remains of Canis, Bos, Ovis, Capra and Sus compared with an increasingly large corpus of data from the SouthWestern part of the Iberian Peninsula indicate several occasions when these animals underwent size changes. Bos, Capra and Canis were considerably larger in the Pleistocene-a size difference now documented in other regions. Besides a Pleistocene-Holocene reduction in size, they underwent a further diminution associated with their domestication. It is possible that aurochs and wild boar recovered some of their former size after the Neolithic, perhaps due to a relaxation of hunting pressure after the Mesolithic. Domestic sheep, goats and cattle increased in size in more recent times perhaps reflecting Moslem and Christian improvements.

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