Siobhán M. Mattison

Bio: Siobhán M. Mattison is an academic researcher from University of New Mexico. The author has contributed to research in topics: Kinship & Medicine. The author has an hindex of 11, co-authored 37 publications receiving 512 citations. Previous affiliations of Siobhán M. Mattison include Stanford University & Boston University.

The evolution of inequality.

Abstract: Understanding how systems of political and economic inequality evolved from relatively egalitarian origins has long been a focus of anthropological inquiry. Many hypotheses have been suggested to link socio-ecological features with the rise and spread of inequality, and empirical tests of these hypotheses in prehistoric and extant societies are increasing. In this review, we synthesize several streams of theory relevant to understanding the evolutionary origins, spread, and adaptive significance of inequality. We argue that while inequality may be produced by a variety of localized processes, its evolution is fundamentally dependent on the economic defensibility and transmissibility of wealth. Furthermore, these properties of wealth could become persistent drivers of inequality only following a shift to a more stable climate in the Holocene. We conclude by noting several key areas for future empirical research, emphasizing the need for more analyses of contemporary shifts toward institutionalized inequality as well as prehistoric cases.

Modernizing Evolutionary Anthropology : Introduction to the Special Issue

Abstract: Evolutionary anthropology has traditionally focused on the study of small-scale, largely self-sufficient societies. The increasing rarity of these societies underscores the importance of such research yet also suggests the need to understand the processes by which such societies are being lost-what we call "modernization"-and the effects of these processes on human behavior and biology. In this article, we discuss recent efforts by evolutionary anthropologists to incorporate modernization into their research and the challenges and rewards that follow. Advantages include that these studies allow for explicit testing of hypotheses that explore how behavior and biology change in conjunction with changes in social, economic, and ecological factors. In addition, modernization often provides a source of "natural experiments" since it may proceed in a piecemeal fashion through a population. Challenges arise, however, in association with reduced variability in fitness proxies such as fertility, and with the increasing use of relatively novel methodologies in evolutionary anthropology, such as the analysis of secondary data. Confronting these challenges will require careful consideration but will lead to an improved understanding of humanity. We conclude that the study of modernization offers the prospect of developing a richer evolutionary anthropology, by encompassing ultimate and proximate explanations for behavior expressed across the full range of human societies.

Evolutionary Contributions to Solving the “Matrilineal Puzzle”

Abstract: Matriliny has long been debated by anthropologists positing either its primitive or its puzzling nature. More recently, evolutionary anthropologists have attempted to recast matriliny as an adaptive solution to modern social and ecological environments, tying together much of what was known to be associated with matriliny. This paper briefly reviews the major anthropological currents in studies of matriliny and discusses the contribution of evolutionary anthropology to this body of literature. It discusses the utility of an evolutionary framework in the context of the first independent test of Holden et al.’s 2003 model of matriliny as daughter-biased investment. It finds that historical daughter-biased transmission of land among the Mosuo is consistent with the model, whereas current income transmission is not. In both cases, resources had equivalent impacts on male and female reproduction, a result which predicts daughter-biased resource transmission given any nonzero level of paternity uncertainty. However, whereas land was transmitted traditionally to daughters, income today is invested in both sexes. Possible reasons for this discrepancy are discussed.

Economic Impacts of Tourism and Erosion of the Visiting System Among the Mosuo of Lugu Lake

Abstract: China's domestic tourism industry has flourished since the mid-1990s, spreading wealth and infrastructure from cities to remote villages and presenting new opportunities for cultural exchange. This paper aims to determine the financial and cultural impacts of tourism on inheritance and marital patterns of the matrilineal Mosuo of south-west China. Data from household censuses and personal interviews show that Mosuo residing in tourist-impacted areas deviate more often from traditional matrilineal norms than Mosuo residing in areas removed from tourism. Households more frequently contain bilateral descendants in tourist-impacted areas, whereas they are more often strictly matrilineal in farming areas. Marital patterns also differ more from stated norms in tourist-impacted areas. I interpret differences as adaptive responses to variation in acquired wealth, arguing that cultural assimilation alone is unlikely to account for such differences. I argue that the results are consistent with the general hypothesi...

Paternal Investment and the Positive Effects of Fathers among the Matrilineal Mosuo of Southwest China

Abstract: The matrilineal Mosuo of Southwest China have been described as the only human society that lacks fathers and husbands. These claims are based on ethnographic descriptions of normative practices and have typically not employed rigorous tests of quantitative behavioral or demographic data to verify actual practices. Here we challenge these claims, providing quantitative evidence of paternal investment among contemporary Mosuo fathers. We show that co-residence with one's biological father is associated with increased education and lower age at first reproduction, suggesting that incentives to provide paternal care exist among the Mosuo. We examine men's self-reports of fathering activity and women's reports of their partners’ fathering activities, including measures of both direct care and monetary investment in their children. Every participant (N = 140) reported paternal involvement in childcare, but factor analysis of fathers’ responses revealed that men specialized in either monetary or direct care. We speculate as to what may lie behind differences in caring patterns and conclude by emphasizing that while paternal investment is facultative, it is unlikely to be completely absent even in societies like the Mosuo.

All Our Kin: Strategies for Survival in a Black Community

Abstract: All Our Kin: Strategies for Survival in a Black Community. C. B. Stack. New York: Harper & Row. 1974. Carol Stack wrote one of the most powerful books of the last half century about African American families. The book's power derived from its focus on the stories and the lives of persons who were struggling to manage with limited resources and who had evolved seamless methods of survival and coping strategies. Stack was not content to view the problems of impoverished African American families from an outside perspective, as had been done in the past, but chose instead to present her work from the view of the participants. She presented a sensitive view of families that has not been duplicated to this day. Stack put specific emphasis on being accepted by the families before she began interviewing them. She and her son took a long time to be accepted by the families as they gradually became participants in the day-to-day lives of the "Flats." She was sensitive to the patterns of interactions among the networks of family and friends that would have been overlooked by almost any other researcher or method of observation. The book showed how a person from another racial and economic group was able, with skill, to become an intimate part of the experience and the lives of very poor families. Her anthropological approach stands in sharp contrast to the countless attempts of others to quickly go in and pull out slices of families' lives with a preexisting conceptual framework. The African American families of the Flats were presented as they were, not from a White academic theoretical perspective that was not based on reality. Stack made many observations that allowed one to see the intricate workings of the families that "outsiders" had not been documented before. Participants were allowed to make observations about their own families' patterns of interaction and to uncover truths of family functioning based on the reality of their lives. Important data on these second-generation urban dwellers are presented in such a calm manner that one could overlook their significance to the field. The impact of the economic pressures on the men and women in the African American community show how persons can have mainstream values but are prevented from achieving them because of the lack of employment and economic security within the community. In response to the reality, Stack found that African Americans have cooperated to produce an adaptive strategy of exchanging goods and trading resources, as well as offering child care or temporary fosterage. Kinship boundaries were more elastic than they were in more affluent families because these individuals immersed themselves in a domestic network of kinfolk and fictive kin, or those who became as kin. The participants in Stack's study moved around and had loyalties to more than one household grouping at a time, making their family networks unlike the "household" structures of most American families. These networks were diffused over several kin-based households that changed frequently. The usual method of arbitrarily specifying widely accepted definitions of the family as nuclear or matrilocal may block one from seeing the world as it exists in very poor communities. Stack's observations refuted the "culture of poverty" position that had seen African Americans as having no culture or totally negative qualities of family disorganization, personal disorganization, and fatalism. Unfortunately, too many current writings on African Americans still take these same positions. The views may be the result of ignorance, naivete, or complex levels of racism that insidiously make their way into present family literature. Stack continued to reflect on the poverty of the participants' situations. By doing so, she avoided another position that is all too common-assumption that all African American families are the same, regardless of their levels of poverty or affluence. …

On Human Nature

Abstract: View a collection of videos on Professor Wilson entitled "On the Relation of Science and the Humanities"In his new preface E. O. Wilson reflects on how he came to write this book: how "The Insect Societies" led him to write "Sociobiology," and how the political and religious uproar that engulfed that book persuaded him to write another book that would better explain the relevance of biology to the understanding of human behavior.