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NUMBER 89 149
FIGURE 8.—Area of sympatry of seabirds from Cueva de Nerja, Spain (upper Paleolithic layer) (Puffinus puffinus.
Puffinus gravis, Puffinus griseus, Calonectris diomedea, Morus bassanus, Phalacrocorax aristotelis, Uria
aalge, Alca torda, Pinguinus impennis). (•=fossil site.)
ality of the Dryas 2 stadial has been questioned, and it has been
argued that Allerod was actually colder than Boiling (Nilssom,
1983). There is, however, no doubt that during the Dryas 3 stadial
(ca. 10,800-10,100 yrs. BP), the last "cold snap" of the
Wurmian glacial cycle, there was a return to fully glacial climatic
conditions lasting several centuries.
The Blomvag site near Bergen in Norway is securely CI 4dated
to the Boiling interstadial (12,700-12,200 yrs. BP) (Lie,
1986). The seabird fauna consists of nine species {Fulmarus
glacialis, Puffinus puffinus, Somateria mollissima, Rissa tridactyla,
Alca torda, Uria aalge, U. lomvia, Cepphus grylle,
Pinguinus impennis). The area of sympatry of these species
(Figure 9) indicates conditions only slightly colder than at
present. This implies a considerable contrast between conditions
in the Norwegian Sea and on land because most of Scandinavia
was still ice-covered at this time, and the ice-edge must