Abstract
ABSTRACT Kuhn and Miller (2015) suggest that changes in projectile point life histories could result from (a) increased replacement costs due to limited raw material access, or (b) a decline in average hunting returns. In northern Alabama, where raw material access can be held constant, we use variation in biotic structures to make predictions for life histories of Clovis to Big Sandy projectile points over the course of the Younger Dryas (12,900–11,700 calendar years ago). Then, using data from the Alabama Paleo Point Survey and private collections, we find a decrease in projectile point size through time, and fluctuations in resharpening. These trends follow changes in forest structure, average prey size, and hunting returns. We conclude that there are no abrupt technological changes coeval with the Younger Dryas onset. However, with the Younger Dryas terminus and subsequent Holocene warming, foragers in northern Alabama made significant changes in projectile point technology.
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