Plant Diversity in Hmong and Mien Homegardens in Northern Thailand

Plant Diversity in Hmong and Mien Homegardens in Northern Thailand. We surveyed 180 homegardens in three Hmong and three Mien villages in northern Thailand to study their floristic diversity and composition and to understand the impact of forced migration and ecological conditions for the development of the rich homegarden flora. We also looked at the role of culturally important species as carriers of cultural identity. We found 406 species: 341 (99 families) and 270 species (90 families) in Hmong and Mien homegardens, respectively. Five lowland villages had the richest homegarden flora, in part due to the presence of many widespread species. Twenty-two species were widespread in tropical countries and found in most Hmong and Mien homegardens, and 14 additional common species were shared between Hmong and Mien homegardens. Seventeen species were exclusive to Hmong homegardens and eight to Mien homegardens; these we have designated as culturally important species. The presence of culturally important species determines the homegardens’ characteristics and reflects the cultural identity related to plant uses of a group. Similarities in floristic composition of the two groups can be attributed to widespread and common species. Floristic variation and diversity in homegardens were strongly related to homegarden geographical location, personal preference, and cultural background of the owners.     

Genetic distance and gene diversity among linguistically different tribes of Mexican Indians.

Using gene frequency data for 14 genetic loci, genetic distances between 13 tribes of Mexican Indians belonging to 12 language groups were determined and a dendrogram was constructed. The genetic distance between tribes is correlated more with geographic proximity than with language affinity. The gene diversity (heterozygosity) of the total population was decomposed into the three components, i.e., the gene diversity between three main linguistic groups, the gene diversity between tribes within the main linguistic groups and the gene diversity within tribes. About 95% of the total gene diversity exists within tribes, the intergroup and intertribe components being only about 5%.     

Indigenous knowledge and traditional conservation of fonio millet (Digitaria exilis, Digitaria iburua) in Togo

Fonio millet (Digitaria exilis Stapf, Digitaria iburua Stapf) is known in Togo far several centuries and has played a strategic role in the household food security mainly in rural areas. Using Participatory Research Appraisal (PRA) tools and techniques, 55 villages randomly selected in the two production zones of Togo were surveyed to document the ethnobotanical and indigenous knowledge related to its production, diversity, use and conservation. For all of the ethnic groups involved in fonio production in Togo (Akposso and Akébou in the south; Losso-Nawda, Lamba, Tamberma, Tchokossi and Gangan in the north), the crop has a high sociocultural value. The fonio genetic diversity being managed by the farmers seems important as 42 landraces were recorded. Two lines of origin that contributed to this current genetic diversity (local domestication or introduction from neighbouring countries) were reported by the farmers. Cooking qualities, growth cycle, colour and size of the grains are the main criteria used by farmers to describe varieties. According to farmers, fonio production and diversity are being regressing because of several constraints of which the most important are lack of adequate harvest, threshing and processing technologies and development of pests and diseases. The important ethnobotanical and indigenous data recorded will be useful in accessing the genetic diversity of the crop in Togo and in defining appropriate strategies for its conservation on farm.     

Nuba agriculture and ethnobotany,with particular reference to sesame and sorghum

There is a remarkably high level of variation within cultivated sesame and sorghum in the Nuba Mountains of Sudan although the region is relatively small. The Nuba people are geographically isolated and culturally diverse in religion, language, material inventory, agricultural practices and in their rituals involving crop plants, and this contributes to the diversity in their cultivars. Nuba crop husbandry is sophisticated and high levels of genetic diversity are maintained by deliberate selection of crop varieties that are well adapted to each of the microenvironments of the region and best suited for different economic uses.     

Incense and ritual plant use in Southwest China: A case study among the Bai in Shaxi

Background

Activities and diet during the postpartum period are culturally dictated in many Southeast Asian cultures, and a period of confinement is observed. Plants play an important role in recovery during the postpartum period in diet and traditional medicine. Little is known of the Kry, a small ethnic group whose language was recently described, concerning its traditions and use of plants during pregnancy, parturition, postpartum recovery and infant healthcare. This research aims to study those traditions and identify medicinal plant use.

Methods

Data were collected in the 3 different Kry villages in Khammouane province, Lao PDR, through group and individual interviews with women by female interviewers.

Results

A total of 49 different plant species are used in women's healthcare. Plant use is culturally different from the neighboring Brou and Saek ethnic groups. Menstruation, delivery and postpartum recovery take place in separate, purpose-built, huts and a complex system of spatial restrictions is observed.

Conclusions

Traditions surrounding childbirth are diverse and have been strictly observed, but are undergoing a shift towards those from neighboring ethnic groups, the Brou and Saek. Medicinal plant use to facilitate childbirth, alleviate menstruation problems, assist recovery after miscarriage, mitigate postpartum haemorrhage, aid postpartum recovery, and for use in infant care, is more common than previously reported (49 species instead of 14). The wealth of novel insights into plant use and preparation will help to understand culturally important practices such as traditional delivery, spatial taboos, confinement and dietary restrictions, and their potential in modern healthcare.     

Enzyme diversity in pearl millet (Pennisetum glaucum)

Summary The survey of enzyme polymorphism in West African pearl millet cultivars reported by Tostain et al. 1987 has been extended to include populations from other regions of Africa and from India. The eight enzyme systems studied included: alcohol dehydrogenase, -esterase, catalase, phosphoglucoisomerase, phosphoglucomutase, 6-phosphogluconate dehydrogenase, glutamate oxaloacetate transaminase, and malate dehydrogenase. One-hundred-ninety-nine populations of millet were analyzed, including 74 populations studied earlier. No new enzyme diversity was observed. Intrapopulation diversity ranged from 70%–90% of the total diversity, depending on their regions of origin. Four principal groups were distinguished in the following decreasing order of diversity: early-maturing cultivars from West and East Africa, late — maturing cultivars from West and East Africa, cultivars from India, and cultivars from southern Africa. The early-maturing cultivars were distributed between two principal focal points from East Africa in the East to Mali in the West. In the center were found millets from Niger which were most diverse. Indian and southern African cultivars were distinct, with the former appearing relatively similar to those of Niger, and the latter somewhat similar to late-maturing cultivars from West Africa, a diverse group that included late-maturing cultivars from East Africa. Based on the results obtained, an evolutionary hypothesis proposed here includes: multiple domestications in the Sahel, creation of early-maturing cultivars and their migration eastwards to India plus a southwards migration to Sudanian zone, and creation of late-maturing cultivars and their migration simultaneously westwards, eastwards, and southwards to southern Africa.     

The politics of recognition in culturally appropriate care

Over the last 20 years, the concept of culturally appropriate health care has been gradually gaining popularity in medicine and public health. In calling for health care that is culturally appropriate, minority groups seek political recognition of often racialized constructions of cultural difference as they intervene in health care planning and organization. Based on interview narratives from people involved in community organizing to establish a federally funded community health center in a mid-size New England city, I chart the emergence of a language of "culturally appropriate health care" in language used to justify the need for a health center. An identity model of recognition underlies the call for ethnic resemblance between patient and provider seen in many culturally appropriate care programs. I contrast this model of health care with earlier calls for community access and control by activists in the 1970s and explore the practical and theoretical implications of each approach.     

村落文化林与非文化林多尺度物种多样性加性分配

文化林是指村民按照文化传统、风俗习惯或宗教信仰自觉保护和管理的森林,具有一定社会文化功能。目前国内外对文化林物种多样性研究主要为定性描述,缺乏对文化林和非文化林生物多样性的定量比较及差异来源分析。利用物种多样性加性分配方法,将总的Gamma 多样性分成样格内的Alpha多样性以及样格间、样方间和林型间Beta多样性,对中国亚热带地区3个村落文化林的乔木层、灌木层、草本层和藤本层进行物种多样性的多尺度分析。调查发现:(1)文化林共有维管束植物296种,以苦槠,樟和米槠为优势种,非文化林共有维管束植物189种,以杉木、马尾松和毛竹为优势种。文化林乔木层和灌木层物种数显著高于非文化林,草本层和藤本层物种数差异不显著。(2)Beta多样性随尺度增大而增加,林型间Beta多样性最高,占区域总Gamma多样性的41.9%-62.8%,其次是样方间Beta多样性(18.6%-31.9%),对区域多样性贡献最小为样格内Alpha和样格间Beta多样性。(3)林型间的多样性对区域物种多样性的贡献中,文化林占主导作用,乔木层占54.4%-81.0%,灌木层占51.2%-60.2%,草本层占42.9%-64.1%,藤本层占49.9%-62.2%。(4) 物种累积-面积曲线表明,在各个尺度上,文化林物种多样性始终高于非文化林,从而在相同面积下保护了更多的物种。加性分配模型在多个空间尺度上阐明了Alpha和Beta多样性的变化,突出了文化林对区域物种多样性的贡献,对保护对象和保护范围的决策以及生物多样性的保护与恢复具有重要意义。     

Mitochondrial DNA variability in populations and ethnic groups of Tatars of the Tobol-Irtysh basin

The data on mitochondrial DNA diversity in seven local populations (villages) and four territorial groups of Tatars of the Tobol-Irtysh basin are presented. In the Turkic-speaking populations from the Tobol and Irtysh river basins, high levels of intergroup and interpopulation mtDNA variation were observed. It was demonstrated that genetic diversity of the territorial groups of Tatars of the Tobol-Irtysh basin resulted from various interethnic relationships and different ethnic components integrated into these groups.     

A multivariate approach to fingerprint variation in Papua New Guinea: Perspectives on the evolutionary stability of dermatoglyphic markers

In the Markham Valley of Papua New Guinea, multivariate graphical displays of serological, anthropometric, and dermatoglyphic population structures are compared pursuant to the hypothesis that fingerprints have a slower velocity of evolutionary change and, therefore, are preferable biological markers for prehistorical reconstructions. Samples from nine villages, which represent three geographical and linguistic populations, are plotted in two dimensions using appropriate multivariate techniques for maximally portraying between sample variability. Both the serological and morphometric displays are found lacking in close clusters, which demonstrates a lack of congruence with the shared languages and, presumably, the ethnohistorical origins of the three populations. These discrepancies between biology and prehistory appear to reflect recent environmental and stochastic perturbations. On the other hand, fingerprint displays conform closely to language affiliations, relatively undisturbed by environmental variation and genetic drift. The relative congruence between ethnohistorical affiliation and fingerprint diversity is further corroborated by comparing the three measures of population structure with geographical distances, using partial rank correlations. In terms of explained variance, the level of association with fingerprints is more than twice than with anthropometry, and 13 times greater than with serology. Whereas metric and serological data provide distorted portrayals of known biohistorical relationships among the study populations, fingerprint data mirror these relationships. The theoretical foundations and consequences of this observation are discussed with respect to the broader question of polygenic versus monogenic biological markers.     

Microsatellite diversity reveals the interplay of language and geography in shaping genetic differentiation of diverse Proto-Australoid populations of west-central India

Microsatellite diversity was analyzed in four Proto-Australoid tribes, including Indo-European (Marathi)-speaking Katkari, Pawara, Mahadeo-Koli, and Dravidian (Gondi)-speaking groups of Maharashtra, west-central India, to understand their genetic structure and to identify the congruence between language and gene pool. Allele frequency data at 15 short tandem repeat (STR) loci in studied tribes was compared with data of 22 Indo-European- and Dravidian-speaking caste and tribal populations using heterozygosity, allele size variance, analysis of molecular variance (AMOVA), G(ST) estimate, PC plot, and Mantel correlation test. Our results demonstrate that "Gondi" tribes comprising the Madia-Gond, a hunter-gatherer population, and the agriculturist Dheria-Gond harbor lower diversity than "Marathi" tribal groups, which are culturally and genetically distinct. Katkari, a hunter-gatherer tribe, showed greater diversity and the presence of a large number of unique alleles, genetically distinct from all others except the Pawara, supporting their old cultural links. The agriculturist Pawara tribe represents a splinter subgroup of the Bhil tribe and has experienced gene flow. The Mahadeo-Koli, an agriculturally oriented tribe, displayed significant heterozygote deficiency, attributable to the practice of high endogamy. The Proto-Australoid tribal populations were genetically differentiated from castes of similar morphology, suggesting different evolutionary mechanisms operating upon the populations. The populations showed genetic and linguistic similarity, barring a few groups with varied migratory histories. The microsatellite variation clearly demonstrates the interplay of sociocultural factors including linguistic, geographical contiguity, and microevolutionary processes in shaping the genetic diversity of populations in contemporary India. This study supports the ethno-historical relationships of Indian populations.     

Genetic markers in the Hindu and Muslim Gujjars of Northwestern India

A comparative study of serogenetic markers was carried out among the Hindu and Muslim Gujjars from Northwestern India. From each isolate of Gujjars, 200 adult couples were examined for the A1A2BO and Rhesus blood groups, ABH secretion, the serum proteins haptoglobins, transferrins, and albumins, and 200 male subjects were examined for glucose-6-phosphate dehydrogenase enzyme deficiency. The study showed that the Muslim Gujjars differ significantly from their counterpart, the Hindu Gujjars. The differentiation that has occurred among the Muslim Gujjars may be attributed to their geographical dispersal in diverse habitats, the inflow of genes from Islamic invaders as well as non-Islamic surrounding populations, the inbreeding effect, and the comparative breeding isolation. The genetic affinities of the Hindu Gujjars with the Jats and Rajputs provide strong evidence for their common ethnic origin and probably their recent fissioning owing to biosocial practices and occupational patterns. The computed genetic distance matrix shows diversity of Ahirs from all the concerned population groups.     

Changes in landuse alter ant diversity,assemblage composition and dominant functional groups in African savannas

Africa’s savannas are undergoing rapid conversion from rangelands into villages and croplands. Despite limited research, and evidence of deleterious effects to biodiversity, international organisations have earmarked this system for cropland. Invertebrates, and ants in particular, are sensitive indicators of habitat fragmentation, and contribute to ecosystem services at a range of scales. We investigated how rangelands, villages and croplands differ in ant species and functional diversity, and assemblage composition. We sampled ants using pitfall traps at 42 sites (14 replicates each in rangeland, cropland, and village) in northern South African savannas. We investigated the impact of landuse, season, and multiple soil and vegetation habitat variables on ant species diversity, assemblages and functional diversity. Rangelands had the greatest ant species richness, particularly in the wet season. Richness declined with increasing soil clay content. Ant assemblages were distinctly different between landuse types. Rangeland harboured the widest diversity of indicator species, and contained greatest functional diversity. Rangelands accommodated more scavengers, granivores, and plant-matter feeders than cropland, and representation of these groups varied with season. Ants play essential roles in soil nutrient cycling, plant and seedling recruitment, and impact other arthropods through predation and aphidoculous behaviour that in turn influences entire food webs. Thus, the reduced species richness, changes in assemblage composition and the loss of functional groups in ant assemblages found in cropland and villages is potentially problematic. Left unchallenged, these new forms of landuse threaten to characterise the entire African savanna system, impacting not only future ecological, but possibly also human wellbeing.     

The impact of culturally competent diabetes care interventions for improving diabetes-related outcomes in ethnic minority groups: a systematic review

Diabet. Med. 29, 1237-1252 (2012) ABSTRACT: Aim To examine the evidence on culturally competent interventions tailored to the needs of people with diabetes from ethnic minority groups. Methods MEDLINE (NHS Evidence), CINAHL and reference lists of retrieved papers were searched from inception to September 2011; two National Health Service specialist libraries were also searched. Google, Cochrane and DARE databases were interrogated and experts consulted. Studies were included if they reported primary research on the impact of culturally competent interventions on outcome measures of any ethnic minority group with diabetes. Paper selection and appraisal were conducted independently by two reviewers. The heterogeneity of the studies required narrative analysis. A novel culturally competent assessment tool was used to systematically assess the cultural competency of each intervention. Results Three hundred and twenty papers were retrieved and 11 included. Study designs varied with a diverse range of service providers. Of the interventions, 64% were found to be highly culturally competent (scoring 90-100%) and 36% moderately culturally competent (70-89%). Data were collected from 2616 participants on 22 patient-reported outcome measures. A consistent finding from 10 of the studies was that any structured intervention, tailored to ethnic minority groups by integrating elements of culture, language, religion and health literacy skills, produced a positive impact on a range of patient-important outcomes. Conclusions Benefits in using culturally competent interventions with ethnic minority groups with diabetes were identified. The majority of interventions described as culturally competent were confirmed as so, when assessed using the culturally competent assessment tool. Further good quality research is required to determine effectiveness and cost-effectiveness of culturally competent interventions to influence diabetes service commissioners.     

The co-evolution of culturally inherited altruistic helping and cultural transmission under random group formation

Limited migration results in kin selective pressure on helping behaviors under a wide range of ecological, demographic and life-history situations. However, such genetically determined altruistic helping can evolve only when migration is not too strong and group size is not too large. Cultural inheritance of helping behaviors may allow altruistic helping to evolve in groups of larger size because cultural transmission has the potential to markedly decrease the variance within groups and augment the variance between groups. Here, we study the co-evolution of culturally inherited altruistic helping behaviors and two alternative cultural transmission rules for such behaviors. We find that conformist transmission, where individuals within groups tend to copy prevalent cultural variants (e.g., beliefs or values), has a strong adverse effect on the evolution of culturally inherited helping traits. This finding is at variance with the commonly held view that conformist transmission is a crucial factor favoring the evolution of altruistic helping in humans. By contrast, we find that under one-to-many transmission, where individuals within groups tend to copy a “leader” (or teacher), altruistic helping can evolve in groups of any size, although the cultural transmission rule itself hitchhikes rather weakly with a selected helping trait. Our results suggest that culturally determined helping behaviors are more likely to be driven by “leaders” than by popularity, but the emergence and stability of the cultural transmission rules themselves should be driven by some extrinsic factors.     

Influence of diversity and road access on palm extraction at landscape scale in SE Ecuador

The relationship between biodiversity and the activities of small-scale farmers remains poorly understood despite its importance for conservation. In tropical forest areas farmers often include extraction of forest products in their subsistence strategies, and it has been suggested that factors such as market access and diversity levels influence people’s use of forest products. To investigate these relationships, we studied the use of palms in five villages inhabited by colonists and indigenous Shuar in the lower montane forest in south-eastern Ecuador by means of interviews and line transects around the villages. We found that use of palms was not driven by the diversity of palms available in the forest surrounding each village. Instead, the most important factor seemed to be lack of market access so in villages furthest away from the nearest road people used more palm products for their subsistence life compared to villages closer to the road. Forests around more remote villages had higher utility levels when evaluated on the basis of the villagers’ use of palms, despite lower levels of palm diversity and richness in these forests. The lower diversity levels may reflect past human activity or ecological factors, or a combination of both. In either case, our results show that forests with higher diversity levels are not necessarily more valuable to local people compared to less diverse forests. Instead, socio-economic factors such as market access may be more important in shaping people’s relationship with the natural environment.     

Language and Culture on the North Coast of New Guinea

Statistical analysis of variability in assemblages of material culture obtained at different villages on the North Coast of New Guinea indicates that similarities and differences among these assemblages are most strongly associated with geographic propinquity, irrespective of linguistic affinities. When assemblage similarity is adjusted for the effect of distance, diversity in material culture appears unrelated to the linguistic relationships of these communities. This study shows that similarity in material culture assemblages can mask marked heterogeneity in language. Language, however, is frequently used to index people in Melanesia on the assumption that language is a useful key to their other human characteristics. This analysis does not lend support to this common practice, and it has implications for how prehistoric cultural complexes in Melanesia are defined and interpreted.     

Constituted through Conflict: Images of Community (and Nation) in Bulgarian Rural Ritual

Following the 20th anniversary of Benedict Anderson's Imagined Communities, this article extrapolates how attention to actual notions of community might redirect his important intervention. It suggests that locally and culturally specific ideas about collectivity shape the experience and expectations of national-level projections. To demonstrate this outcome the analysis focuses on Bulgarian mumming—spectacular winter rituals in which threatening masked figures transverse villages to banish evil and bring good fortune. While these rituals clearly reinforce social solidarity, they represent a local notion of community in which conflict, both intra-and interethnic, is elemental and constitutive. This image of community does not demand consensus or homogeneity when imagined on a national scale. Such variations in community notions may help explain the diversity of national experiences increasingly documented by ethnographers.     

Distribution of Agrobiodiversity in Home Gardens along the Corrientes River,Peruvian Amazon

Distribution of Agrobiodiversity in Home Gardens along the Corrientes River, Peruvian Amazon. This paper examines crop species diversity in home gardens of traditional communities along a remote tributary in northeastern Peru. A large-scale survey was conducted of 300 gardens in 15 villages along a 150 km reach of the Corrientes River. Study villages vary notably in community size, ethnicity of residents (Achuar, Urarina, mestizo), and proximity to the regional town (Trompeteros) as well as to oil wells. Gardens were inventoried and interviews conducted with garden tenders to provide data on socioeconomic characteristics of the household and contextual conditions. Multiple regression analyses identified the determinants of species diversity. Results indicate high crop diversity—the highest yet reported for sites in the Amazon basin—particularly among the Achuar people. Garden species diversity is greatest in larger villages and, surprisingly, in those villages located nearer to the oil company. Within villages, households with larger land holdings (and gardens), more in-house labor, and garden tenders who are older and female tend to have more diverse gardens. A small number of households (15/300) were found to hold exceptional diversity, often older and land-wealthier households located on the outskirts of villages. These farmers held, on average, three times the number of species as a typical village garden and 60% of all species encountered in the study.