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While most comparative and meta-analysis in archaeology would like to assume that taphonomic factors act randomly and do not bias the results of studies with many data points, archaeological records may suffer from systematic biases in preservation, sampling, recovery methods, analytic methods, reporting practices, or yet other factors. Using a life history and middle-range perspective, we outline an approach for assessing possible systematic biases and for explicitly evaluating factors that affect assemblages included in comparative analysis at any scale. We demonstrate the usefulness of the life history concept as a framework for holistically evaluating bias with a zooarchaeological case study from the northeast Pacific. Our comparative analysis of regional fishbone records shows that unusually high abundances of sablefish (Anoplopoma fimbria)—a nutritious and highly valued, yet rarely reported, species—at one large Native American village on the coast of Washington State, USA, cannot be explained by post-depositional destruction, screen size effects, sample size effects, or differences in fishbone identification methods. Though this study focuses on zooarchaeology, the framework we present has potential value for any large-scale meta-analysis that seeks to identify cultural and environmental patterns in “noisy” archaeological data.

The Society for American Archaeology presented R. Lee Lyman with the Fryxell award for Interdisciplinary Excellence in Zooarchaeology in 2011. Lyman has produced over 120 journal articles or book chapters, and four single-authored books on the topic, and this issue honors his contributions to zooarchaeological method and theory with six original pieces by his peers. Arguably, his greatest impact has been in the field of vertebrate taphonomy and the development of a means to measure density-mediated bone attrition, but of equal importance was emphasis in the discipline that unit selection, or what one measures, should be linked to a particular research question. Lyman's work has also stressed the importance of making zooarchaeology relevant to modern issues of conservation biology.

The sea otter has experienced a dramatic population decline caused by intense human harvesting, followed by a century of recovery including relocation efforts to reestablish the species across its former range in the eastern Pacific. Although the otter was historically present along the coast in Oregon, there are currently no populations in this region and reintroduction efforts have failed. We examined the mtDNA genotypes of 16 pre-harvest otter samples from two Oregon locations in an attempt to determine the best genotypic match with extant populations. Our amplifications of a 222 base-pair portion of the control region from otters ranging in age from approximately 175-2000 years revealed four genotypes. The genotypic composition of pre-harvest otter populations appears to match best with those of contemporary popu- lations from California and not from Alaska, where reintroduction stocks are typically derived.