Social and Behavioral Sciences Commons^™

The Evolution Of Consanguineous Marriages In The Archbishopric Of Granada, Spain (1900–1979), Juan F. Gamella, Ana MaríA NúÑEz-Negrillo

Human Biology Open Access Pre-Prints

In the twentieth century Spain maintained some of the highest rates of consanguineous marriage in Europe. In many regions these rates were still high in the 1950s and 1960s, but then decreased rapidly, and by the 1970s a generalized transformation in mating patterns was underway. In the following decades the marriage of persons closely related by birth became rare. Consanguinity and inbreeding have been much studied in Spain, but almost exclusively in the central and northern regions of the country. This is the first study of a whole large diocese in the southern region of Andalusia. This paper is based …

Racial Experience As An Alternative Operationalization Of Race, Jada Benn Torres, Gabriel A. Torres Colón

Human Biology Open Access Pre-Prints

The study of human variation is central to both social and biomedical sciences; however, despite agreeing that variation is integral to the human experience, social and biomedical scientists diverge in how variation is theorized and operationalized. Race becomes especially problematic because it is a cultural concept that contains implicit and explicit understandings of how collective bodies differ. In this paper, we propose an operationalization of race that is attentive to both racial experience and human biological diversity—placing them within the same ontological sphere. Furthermore, we argue that this approach can more effectively advance antiracist pedagogy and politics.

We argue that …

So You Think You Can Model? A Guide To Building And Evaluating Archaeological Simulation Models Of Dispersals, Iza Romanowska

Human Biology Open Access Pre-Prints

With the current surge of simulation studies in archaeology there is a growing concern for the lack of engagement and feedback between modellers and domain specialists. To facilitate this dialogue I present a compact guide to the simulation modelling process applied to a common research topic and the focus of this special issue of Human Biology—human dispersals. The process of developing a simulation is divided into nine steps grouped in three phases. The conceptual phase consists of identifying research questions (step 1) and finding the most suitable method (step 2), designing the general framework and the resolution of the …

Cultural Incubators And Spread Of Innovation, Enrico R. Crema, Mark W. Lake

Human Biology Open Access Pre-Prints

Several forms of social learning rely on the direct or indirect evaluation of the fitness of cultural traits. Here we argue, via a simple agent-based model, that payoff uncertainty, that is the correlation between a trait and the signal used to evaluate its fitness, plays a pivotal role in the spread of beneficial innovation. More specifically, we examine how this correlation affects the evolutionary dynamics of different forms of social learning and how each can generate divergent historical trajectories depending on the size of the sample pool. In particular, we demonstrate that social learning by copying the best model is …

Inference Of Cultural Transmission Modes Based On Incomplete Information, Bryan Wilder, Anne Kandler

Human Biology Open Access Pre-Prints

In this paper we explore the theoretical limits of the inference of cultural transmission modes based on sparse population-level data. We approach this problem by investigating whether different transmission modes produce different temporal dynamics of cultural change. In particular we explore whether the distributions of the average time a variant stays the most common variant in the population, denoted by t_max, conditioned on the considered transmission modes are sufficiently different to allow for inference of underlying transmission modes. We assume time series data detailing the frequencies of different variants of a cultural trait in a population at different …

Microdemographic Determinants Of Population Recovery Among The Northern Ache, Jack D. Baker Jr, Kim Hill, A. Magdalena Hurtado, Adelamar Alcantara, Eddie Hunsinger, Webb Sprague

Human Biology Open Access Pre-Prints

A pattern of population crash and rapid recovery is a common feature of the pacification and settlement experience of the Indigenous Peoples of tropical South America. In spite of the obvious importance of these events to the demographic and anthropological sciences as a whole, as well as their significant practical implications, little is known about the microdemographic determinants of these paired phenomena. Utilizing methods of asymptotic and stochastic demographic analysis, we reconstruct the microdemographic drivers of this history among one Indigenous population: the Northern Ache of Eastern Paraguay. We then explore the implications of these relationships for understanding the overall …

Feeling The Heat? Substantial Variation In Temperatures Does Not Affect The Proportion Of Males Born In Australia, Barnaby J. Dixson, John Haywood, Philip J. Lester, Diane K. Ormsby

Human Biology Open Access Pre-Prints

The global proportion of male births has been shown to vary with climate, with a higher proportion of male births documented in colder climates. Here we examined the hypothesis that ambient temperature predicts fluctuations in the proportion of male births in Australia and within seven Australian states using historical annual data spanning 1910-2009. We predicted that within states with tropical ambient temperatures the proportion of male births would decrease when ambient temperatures are higher. Considering the national composite births for the whole of Australia first, the proportion of males born ranged only from 0.510 to 0.517. We observed no relationship …

A Population-Genetic Perspective On The Similarities And Differences Among Worldwide Human Populations, Noah A. Rosenberg

Human Biology Open Access Pre-Prints

Recent studies have produced a variety of advances in the investigation of genetic similarities and differences among human populations. Here, I pose a series of questions about human population- genetic similarities and differences, and I then answer these questions by numerical computation with a single shared population-genetic dataset. The collection of answers obtained provides an introductory perspective for understanding key results on the features of worldwide human genetic variation.