Barbara A. Thomson

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Trapline foraging—repealed sequential visits to a series of feeding locations—presents interesting problems seldom treated in foraging models. Work on traplining is hampered by the lack of statistical, operational approaches for detecting its existence and measuring its strength. We propose several statistical procedures, illustrating them with records of(More)
We have newly constructed an ethnohistorical database consisting of 3460 records of ethnic locations and movements in Europe since 2200 B.C. Using this database, we computed vectors of proportions that peoples speaking various language families contributed to the gene pools of 2216 1 degree x 1 degree land-based quadrats of Europe. From these vectors we(More)
By means of three different methods we investigated whether 59 allele frequencies and ten cranial variables show increased change at 29 language-family boundaries in Europe. The quadrat-variance method compares variances of map quadrats crossed by language-family boundaries to variances of quadrats that are not crossed. The rate-of-change method examines(More)
Disclaimer This report or document (" the Report ") is given by the Institute of Environmental Science and Research Limited (" ESR ") solely for the benefit of the Ministry of Agriculture and Forestry (MAF), Public Health Services Providers and other Third Party Beneficiaries as defined in the Contract between ESR and MAF, and is strictly subject to the(More)
1 The genetic history of Europe has been the focus of many studies looking at the relative influence of geography, language, and prehistoric and historic population movements on genetic differences between populations. Two groups of researchers have had a major impact on the evolution of these studies—Luca Cavalli-Sforza and colleagues (e.g., Cavalli-Sforza(More)
APTA Climate Change Standards Working Group This Recommended Practice represents a common viewpoint of those parties concerned with its provisions, namely, transit operating/planning agencies, manufacturers, consultants, engineers and general interest groups. The application of any standards, practices or guidelines contained herein is voluntary. In some(More)
We describe the geographic variation patterns of 236 dermatoglyphic variables (118 for each sex) for 74 samples in Europe. Using principal components analysis and rotating to simple structure, we simplified these patterns to the first 20 axes, representing 74.2% of covariation. We then used heterogeneity tests, interpolated surfaces, one-dimensional and(More)
From 420 records of ethnic locations and movements since 2000 B.C., we computed vectors describing the proportions which peoples of the various European language families contributed to the gene pools within 85 land-based 5 x 5-degree quadrats in Europe. Using these language family vectors, we computed ethnohistorical affinities as arc distances between all(More)
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