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28 lis 2019 · For PCA, the components and their loadings provide an approximation to the genetic distance matrix between individuals. We use the median PCA values of individuals across two, ten, or 100 PC components to produce an expected genetic distance matrix between populations.
22 mar 2021 · Using the example of Yugoslavia, they find that genetic distance as a proxy for cultural heterogeneity predicts the disintegration of culturally diverse nation states, i.e., a particularly deep form of economic integration.
17 mar 2021 · A distance matrix has to satisfy additional properties in order to correspond to some weighted tree. In fact, there are two models that assume special constraints on the distance matrix: Ultrametric: For all triplets (a, b, c) of leaves, two pairs among them have equal distance, and the third distance is smaller; i.e. the triplet can be ...
1 gru 2016 · Underlying these patterns of worldwide genetic variation is a human tendency to explore previously uninhabited geographic regions. As a result of this cultural propensity to migrate to new areas, humans have adapted to differences in climate, altitude, and resource availability.
15 lip 2019 · The distance matrix of the individual sequences was then averaged within populations, resulting in a population-level pairwise distance matrix that quantified the average genetic distance between the populations being studied.
2 sie 2018 · Abstract. Landscape genetics investigations examine how the availability and configuration of habitat influence genetic structure of plants and animals.
Here, we review the core concepts in cultural evolutionary theory as they pertain to the extension of biology through culture, focusing on cultural evolutionary applications in population genetics, ecology, and demography.
