Brief Communication: Lactase persistence and dairy intake in Mapuche and Mestizo populations from southern Chile

Lactase persistence (LP) occurs at a very low frequency in indigenous populations from Latin America, offering an opportunity to understand the relationship between this genetic trait and patterns of dairy consumption. Here, the frequency of LP is analyzed from Mapuche and ‐an adjacent‐ mestizo population inhabiting the Araucanía region. In addition to genotyping for LP, participants were surveyed in relation to general perception and consumption habits of dairy products. Low LP frequency (10%) and very low dairy intake was found among the Mapuche population as compared with Mestizo populations inhabiting Chile. The survey reported that the main reasons for avoidance of dairy were the gastrointestinal symptoms after dairy intake and cultural dietary habits. The interaction between low LP genotype frequency, low dairy intake, and sociocultural determinants is here discussed in the light of their potential health outcomes. Am J Phys Anthropol 155:482–487, 2014. © 2014 Wiley Periodicals, Inc.     

Cultural transmission of ethnobotanical knowledge in a rural community of northwestern Patagonia, Argentina

In the present study we analyzed medicinal and edible plant utilization in Cuyin Manzano, a small rural population located near the Andean forests of Argentina. We also studied where and when plant knowledge was learned, who the principal transmitters were, and how people were taught. The participants were interviewed individually and at random, by means of a semi-structured questionnaire. Interviews were carried out in 16 families in order to examine the present use of wild plants. The inhabitants of Cuyin Manzano cited 87 plants: 63 medicinal and 24 edible species. They mentioned on average 31 ± 10 species per person. Similar patterns of plant use were found in young and old people alike, irrespective of gender. Learning about useful plants took place at an early age as a result of family tradition. This local knowledge is acquired and taught “by doing,” and is mostly transmitted vertically through family dissemination. Wild plant learning implies the acquisition of plants' physical and functional features as well as their environmental characteristics.     

Indigenous Knowledge and Management of Araucaria Araucana Forest in the Chilean Andes: Implications for Native Forest Conservation

Southern Chile experienced serious deforestation during the past century and it is projected that by the year 2025 Chile will be devoid of native forests. One of the most important endemic tree species of the country and at the same time one of the most endangered ones is Araucaria araucana (Mol.) C. Koch, the monkey-puzzle tree. It grows in the Andes Mountains, homeland of the indigenous Mapuche Pewenche people who depend on this tree. This paper is based on participatory field research with a Mapuche Pewenche community in the southern Chilean Andes on their ecological knowledge, values, use and management of the Araucaria araucana forest. It attempts to reveal how indigenous people and their knowledge contribute to the sustainable management of these forests. The paper (1) illustrates the complexity of indigenous ecological knowledge of Araucaria araucana and its efficacy in native forest management, (2) explores the link between the conservation and use of biodiversity by the indigenous people, and (3) provides answers relevant to native forest management and conservation strategies ex-situ and in-situ incorporating indigenous and scientific knowledge, thus providing a contribution towards integrated natural resource management.     

Death,Biography, and the Mapuche Person

The amulpüllün biographical oratory which takes place at Mapuche funerals in southern Chile is said to ‘complete’ the person. Such a perspective challenges the assumption that mortuary practices necessarily constitute a form of analysis, a division of the component parts of the social person. In this paper I explore what it is about the Mapuche person which needs to be ‘completed,’ and how funeral oratory achieves this goal. Utilizing Bakhtin's concepts of consummation and transgredience, and Ricoeur's concepts of emplotment and narrative identity, I suggest that it is only from the position of outsidedness that the necessary totalization of the deceased's person can occur. These processes of synthesis and totalization cast light upon an apparent contradiction between the importance which Amerindians place upon biography as an oral form, and theoretical approaches which stress the instability and divisibility of an Amerindian personhood predicated upon the incorporation of the other. Rather than viewing the totalization which occurs in biography as a critique of such an approach, I see it as a solution to the ontological problem which such an approach describes.     

mtDNA microevolution in Southern Chile's archipelagos

The genetic variability of four predominantly Indian populations of southern Chile's archipelagos was examined by determining the frequencies of four mitochondrial DNA haplogroups that characterize the American Indian populations. Over 90% of the individuals analyzed presented Native American mtDNA haplogroups. By means of an unweighted group pair method with arithmetic mean (UPGMA) dendrogram, a principal component analysis (PCA) derived from a distance matrix of mtDNA, and the exact test of population differentiation, we are able to prove the existence of a North‐South cline. The populations in the northern part of the archipelagos are genetically similar to the Huilliche tribe, while the groups from the South are most closely related to the Fueguino tribe from the extreme South of Chile, and secondarily to the Pehuenche and Mapuche, who are found to the North and East of Chiloé archipelago. These results are consistent with a colonization of the southern archipelagos from Tierra del Fuego. We evaluate the evolutionary relationships of the population of the Chiloé area to groups from other geographic areas of Chile, using analysis of molecular variance (AMOVA). Three Amerindian clusters are identified: one formed by the Aymará and Atacameño, a second by the Huilliche, and a third including the Mapuche, Pehuenche, and Fueguino tribes, and the population inhabiting the South of the Chiloé arcipelago. These groups exhibit a North‐South gradient in the frequency of haplogroup B, confirmed by F_ST tests. Am J Phys Anthropol, 2006 © 2005 Wiley‐Liss, Inc.     

Negotiating optimum distinctiveness: cognitive tendencies toward primordialism among Mapuche youth

In recent years primordialism, as a model for understanding people's essentialist perceptions of ethnic similarity and difference, has returned to social scientific debates with a new degree of respectability and theoretical rigour. This article provides further evidence for why primordialism is prioritized by ethnic minorities as a cognitive mechanism for maintaining group distinctiveness, drawing on data gathered among indigenous youth in Chile. In the absence of traditional cultural tenets such as indigenous language and knowledge among the majority of the sample, criteria for membership are premised on perceived essentialisms of blood and surname. The result of categorizing others under primordial terms, however, is that it facilitates a space in which individual preferences of ethnic expression and distinctiveness can be negotiated. This brings the dichotomization of primordialism and constructionism under further scrutiny, suggesting that they may be compatible in the everyday practices of social life.     

Genetic variants of serum butyrylcholinesterase in Chilean Mapuche Indians

We estimated the frequencies of serum butyrylcholinesterase (BChE) alleles in three tribes of Mapuche Indians from southern Chile, using enzymatic methods, and we estimated the frequency of allele BCHE*K in one tribe using primer reduced restriction analysis (PCR-PIRA). The three tribes have different degrees of European admixture, which is reflected in the observed frequencies of the atypical allele BCHE*A: 1.11% in Huilliches, 0.89% in Cuncos, and 0% in Pehuenches. This result is evidence in favor of the hypothesis that BCHE*A is absent in native Amerindians. The frequencies of BCHE*F were higher than in most reported studies (3.89%, 5.78%, and 4.41%, respectively). These results are probably due to an overestimation of the frequency of allele BCHE*F, since none of the 20 BCHE UF individuals (by the enzymatic test) individuals analyzed showed either of the two DNA base substitutions associated with this allele. Although enzymatic methods rarely detect the presence of allele BCHE*K, PCR-PIRA found the allele in an appreciable frequency (5.76%), although lower than that found in other ethnic groups. Since observed frequencies of unusual alleles correspond to estimated percentages of European admixture, it is likely that none of these unusual alleles were present in Mapuche Indians before the arrival of Europeans.     

Parental transmission of ethnic identification in mixed couples in Latin America: the Mapuche case

This study analyses the ethnic identification of children of mixed couples among the Mapuche ethnic group in Chile using census data. The Mapuche are characterized by high exogamy, providing an extreme case of the Latin American pattern of tolerance towards intermarriage. We find that ethnic identification of children of mixed couples is high although it tends to weaken outside the native homeland. Furthermore, education does not increase the classification of children of mixed couples outside of the ethnic group. These findings contravene not only the Brazilian pattern of whitening but also predictions by assimilation theories, and suggest a process of indigenous awareness for families outside the native homeland.     

Nontimber Forest Product Use in Two Human Populations from Northwest Patagonia: A Quantitative Approach

The ancestral tradition of gathering nontimber products in the Andean forests of Patagonia seems to be on the verge of disappearing. Edible wild plant knowledge and differential patterns of use have been compared in two populations of different economic and cultural backgrounds—a small rural Mapuche community (Rams), and an outlying population (El Frutillar). The first is located in an herbaceous steppe far from the nearest Andean forest while the second is located outside the town of Bariloche, near the forests of Nahuel Huapi National Park. Semistructured interviews and related ecological variables were compared in both communities. In the past, both communities utilized nontimber forest products from the Andean Temperate forests. However, today, cost and benefit trade-offs appear to affect when and what edible resources are collected. The people from El Frutillar gather fewer wild plants in spite of the high plant abundance and the notorious food scarcity they suffer. The Mapuche people use more nutritious resources, more native species, spend longer traveling to the gathering site, and longer handling time preparing edible plants.     

Edible Wild Plant Use in a Mapuche Community of Northwestern Patagonia

Mapuche Indians have a long tradition of using edible wild resources. The people of Rams (Neuquén, Argentina) consider themselves descendants of the Pehuenches, an Indian group that once inhabited the Pehuén forest region. They now live in the steppe, far away from the forest. Our primary interests are how this community uses edible resources and in analyzing which plants are still utilized. We conducted an ethnobotanical study, which consisted in interviewing several Mapuche families and collecting plants with their help. Ecological variables of plant use, such as search cost, handling time, and nutritional content, were analyzed from the perspective of Optimal Foraging Theory. Our results indicate that the Rams inhabitants have a thorough understanding of their environment, expressed in a selective gathering of wild resources. Cost and benefit trade-offs seem to be considered when edible plants are collected.