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1.
Late Preclassic (300 BC-AD 100) turkey remains identified at the archaeological site of El Mirador (Petén, Guatemala) represent the earliest evidence of the Mexican turkey (Meleagris gallopavo) in the ancient Maya world. Archaeological, zooarchaeological, and ancient DNA evidence combine to confirm the identification and context. The natural pre-Hispanic range of the Mexican turkey does not extend south of central Mexico, making the species non-local to the Maya area where another species, the ocellated turkey (Meleagris ocellata), is indigenous. Prior to this discovery, the earliest evidence of M. gallopavo in the Maya area dated to approximately one thousand years later. The El Mirador specimens therefore represent previously unrecorded Preclassic exchange of animals from northern Mesoamerica to the Maya cultural region. As the earliest evidence of M. gallopavo found outside its natural geographic range, the El Mirador turkeys also represent the earliest indirect evidence for Mesoamerican turkey rearing or domestication. The presence of male, female and sub-adult turkeys, and reduced flight morphology further suggests that the El Mirador turkeys were raised in captivity. This supports an argument for the origins of turkey husbandry or at least captive rearing in the Preclassic.  相似文献   

2.
Mexican Rural Development and the Plumed Serpent: Technology and Maya Cosmology in the Tropical Forest of Campeche, Mexico. Betty Bernice Faust . Westport, CT: Bergin and Garvey, 1998. 190 pp.  相似文献   

3.
We examined the potential use of lead (Pb) isotopes to source archaeological materials from the Maya region of Mesoamerica. The main objectives were to determine if: 1) geologic terrains throughout the Maya area exhibit distinct lead isotope ratios (206Pb/204Pb, 207Pb/204Pb, and 208Pb/204Pb), and 2) a combination of lead and strontium ratios can enhance sourcing procedures in the Mesoamerica region. We analyzed 60 rock samples for lead isotope ratios and a representative subset of samples for lead, uranium, and thorium concentrations across the Maya region, including the Northern Lowlands of the Mexican Yucatan Peninsula, the Southern Lowlands of Guatemala and Belize, the Volcanic Highlands, the Belizean Maya Mountains, and the Metamorphic Province/Motagua Valley. Although there is some overlap within certain sub-regions, particularly the geologically diverse Metamorphic Province, lead isotopes can be used to distinguish between the Northern Lowlands, the Southern Lowlands, and the Volcanic Highlands. The distinct lead isotope ratios in the sub-regions are related to the geology of the Maya area, exhibiting a general trend in the lowlands of geologically younger rocks in the north to older rocks in the south, and Cenozoic volcanic rocks in the southern highlands. Combined with other sourcing techniques such as strontium (87Sr/86Sr) and oxygen (δ18O), a regional baseline for lead isotope ratios can contribute to the development of lead isoscapes in the Maya area, and may help to distinguish among geographic sub-regions at a finer scale than has been previously possible. These isotope baselines will provide archaeologists with an additional tool to track the origin and movement of ancient humans and artifacts across this important region.  相似文献   

4.
 Neotropical tree crops are affected by a combination of biological and human factors that complicate the study of genetic diversity and crop evolution. Genetic diversity and relationships among southern Mexican populations and horticultural collections of Theobroma cacao (chocolate, cocoa, cacao) are examined in light of the agricultural practices of the Maya. Collections of cacao were obtained from the extremes of its geographic range including archeological sites in southern Mexico where cacao was first domesticated. Genetic diversity was assayed by 57 informative random amplified polymorphic DNA (RAPD) marker loci. A unique sample of the total diversity found in this study exists in the southern Mexican populations. These populations are significantly different from all other cacao with regards to their profile of RAPD bands, including the ‘criollo’ variety, their morphological and geographical group. A population of cacao found in a sinkhole (cenote) in northern Yucatan with genetic affinities to populations in Chiapas suggests the Maya maintained plants far away from their native habitat. This finding concurs with known agroforestry practices of the Maya. Modern efforts to increase germplasm of tropical tree crops such as cacao should carefully examine archeological sites where genetic diversity, either deliberately or by chance, was collected and maintained by ancient cultures. Received: 21 May 1997 / Accepted: 9 October 1997  相似文献   

5.
Introduction of non-native species is a problem worldwide. Local populations of the Mexican mojarra, Cichlasoma istlanum, have been hypothesized to be negatively affected by the introduction of the convict fish, Amatitlania nigrofasciata. The Mexican mojarra is a cichlid fish native to the Balsas-River Basin. As a first approach to understand the behavioral effect of the convict fish on Mexican mojarra, we experimentally studied the behavioral responses of the latter when exposed to the former. Thus, we recorded refuge use, swimming activity and feeding rate of Mexican mojarra in the presence of a convict fish, a conspecific, and alone. Mexican mojarra used refuges for longer, swum for shorter and ate less in the presence of convict fish than with conspecifics or alone. Because prolonged use of refuge habitat may deprive Mexican mojarra of opportunities to feed, grow, and reproduce, we hypothesize that convict fish can negatively affect the fitness of the former where the two species co-occur.  相似文献   

6.
Medical Ethnobiology of the Highland Maya of Chiapas, Mexico: The Gastrointestinal Diseases. Elois Ann Berlin and Brent Berlin. Princeton, NJ: Princeton University Press, 1996 (cloth). xxxii. 557 pp.
Healing with Plants in the American and Mexican West. Margarita Artschwager Kay. Tucson: University of Arizona Press, 1996 (paper). xvii. 315 pp.  相似文献   

7.
This mother—daughter case study focuses on a key feature of discourse within a Mexican immigrant family that links oral traditions to resilience and motivation. I combine observations from a previous ethnographic study with recent follow-up interviews of a Mexican immigrant student building on a funds of knowledge framework and an ecological perspective. Expanding on current mother—daughter pedagogic theory, I map "dichos" as they are emblematic of cultural funds of knowledge and how they assume a relationship to resistance and academic attainment for a young Mexican immigrant. The findings challenge the notion that working-class Latino families do not care about the educational fortunes of their youth and lack knowledge and resources to guide their children academically.  相似文献   

8.
Biodeterioration of archaeological sites and historic buildings is a major concern for conservators, archaeologists, and scientists involved in preservation of the world's cultural heritage. The Maya archaeological sites in southern Mexico, some of the most important cultural artifacts in the Western Hemisphere, are constructed of limestone. High temperature and humidity have resulted in substantial microbial growth on stone surfaces at many of the sites. Despite the porous natureof limestone and the common occurrence of endolithic microorganisms in many habitats, little is known about the microbial flora living inside the stone. We found a large endolithic bacterial community in limestone from the interior of the Maya archaeological site Ek' Balam. Analysis of 16S rDNA clones demonstrated disparate communities (endolithic: >80% Actinobacteria, Acidobacteria, and Low GC Firmicutes; epilithic: >50% Proteobacteria). The presence of differing epilithic and endolithic bacterial communities may be a significant factor for conservation of stone cultural heritage materials and quantitative prediction of carbonate weathering.  相似文献   

9.
An approach integrating ethnohistory, ethnography, and settlement pattern archeology allows a series of "ontogenetic stages" with segmentary lineage behaviors to be delineated for the Post-classic Quiché-Maya state at Utatlán, Guatemala. Comparisons to the Postclassic states in lowland southern Mesoamerica (e.g., Chichén Itzé, Mayapán) assess the segmentary state model. In each, intrusive lineages migrated to coalesce into confederacies that exemplified decentralized authority and common descent. Then the polities suddenly dissoluted, with disarticulated segments again migrating to commence the cycle anew. As a documented case of growth and near collapse of a Maya segmentary state, the Quiché are traced from intrusive, nearly egalitarian Putún lineages through successive tiers of "confederation" in which various ethnic peoples first voluntarily allied and then were coerced into subordination. Utatlán inherited the mantle of rulership of the Lowland Maya "great tradition," heretofore vested in the Tuláns. By so doing, the Quiché acquired symbols of rulership, such as full quadripartition of the calendar and a literary tradition, whereby the Popol Vuh presented general Mayan mythology and specific Quiché history. Incipient economic specialization occurred after state formation within otherwise mechanical solidarity-like lineages linked according to the cardinality of the calendar.  相似文献   

10.
In southern Middle America, highland Maya bonesetters are called on to treat many cases of bodily injury. While Guatemalan Maya bonesetters vary greatly in their techniques and specialties, they prioritize manual treatment modalities, using their hands to address problems in clients' bodies. For bonesetters, the hands achieve direct knowledge of the suffering body, enabling them to work and securing the trust of those they treat. Nonetheless, Maya bonesetters face opposition from physicians who argue that bonesetters are untrained in Western trauma techniques and can inflict irreparable harm on people. This article examines how Maya bonesetters work in an environment hostile to their craft and explores some important vectors of bodily and ideological engagement between Maya bonesetting and Guatemalan biomedicine. [Maya bonesetters, manual medicine, embodied knowledge]  相似文献   

11.
The potential of Burkholderia cepacia strain RQ1 in the biodegradation of heavy crude oil (Maya) was assessed to develop an active indigenous bacterial consortium for the bioremediation of crude oil-polluted systems in Nigeria. The heavy crude oil (Maya) was utilized as sole source of carbon, attaining maximum cell densities of 10(8) cfu ml(-1) from an initial 10(5) cfu ml(-1) in 15 days. Biomass also increased with oil concentrations up to 0.8% (w/v). Growth rates ranged from 0.028 h(-1) to 0.036 h(-1) and degradation rates decreased with increasing concentrations of oil from 0.009 day(-1) to 0.004 day(-1). The quantity of oil metabolized increased significantly (P < 0.05) with increasing concentrations of oil. However, the growth of the bacterium was inhibited at crude oil concentrations beyond 6% (w/v). The pH of the culture media also dropped significantly (P < 0.05) during the 15-day test period, while the non-asphaltic fractions of the oil were significantly reduced (by about 89%) during the same period. The bacterium harbours a plasmid of about 10 kb that lacks restriction sites for the endonucleases Asp718, BamHI and PstI.  相似文献   

12.
The Classic Maya civilization was centered in lowlands of the Petén in northern Guatemala, and collapsed mysteriously in the ninth century AD. Abandoned were rich agricultural lands carved without metal tools out of a tropical rain forest, lands that had been farmed with increasing intensity for six to sixteen centuries. The Maya evidently resettled in highlands to the south or in less productive dry lowlands to the north. No reoccupation occurred of the Petén farms, homes or ceremonial centers until their discovery in the past two centuries. Sustained crop failure of maize (Zen mavs L.) due to an epidemic of the planthopper-borne virus, maize mosaic virus (MMV), is proposed as a primary contributing cause of the collapse. Major diseases and pests of maize in the tropics are assessed for their relative significance in and near the Petén vs. the highlands, and the viruses are highlighted. Maize mosaic virus is a devastating virus disease transmitted by the corn planthopper,Peregrinus maidis, an insect restricted to tropic lowlands. Maize and teosinte are its only definitively known hosts. Thus the disease has been serious only where maize is grown more-or-less continuously through the year in wet or irrigated tropics (e.g., Caribbean Islands, Venezuela, Hawaii, Tanzania, Australia). It is reported here for southern Mexico and the Petén of Guatemala. Resistance in maize occurs only in one known form, the gene Mv. that confers a high level resistance but not immunity. Resistance data are presented for 63 of the 67 races of maize thought to have evolved in the Northern Hemisphere. The Mv gene is shown to occur in all seven of the races of maize evolved in the Caribbean, but in none of the primitive Mexican or Central American races. It is proposed that maize mosaic virus originated in northern South America at or about the time maize was brought into the Caribbean by the Arawak around the time of Christ. The sympatric origin or selection in maize of the Mv resistance mutant in this region is assumed to have led to its incorporation in all seven Caribbean maize races. It is conjectured that viruliferous leafhoppers were blown from the Caribbean into the Petén around the eighth century allowing the disease to become epidemic in susceptible maize races such as Nal-Tel and Tepecintle, grown by the Petén Maya. Sustained failure of maize production due to MMV would have characterized areas of intensive maize cultivation, particularly where it was year-round. The disease would have been less severe in areas with a long dry season, as to the north of Yucatán and it would not have occurred in the highland areas to the south and west, areas to which surviving Maya presumably migrated.  相似文献   

13.
Earth Ovens ( Píib ) in the Maya Lowlands: Ethnobotanical Data Supporting Early Use. Earth oven cooking is very important among the Yucatec Maya. It is used for daily, festive, and ceremonial occasions, contrasting with other Mesoamerican cultures that use this technique sporadically. In this paper we present an ethnobotanical analysis of the use of earth ovens in a Maya community in Yucatan, Mexico, and discuss its possible antiquity, probable reasons for its continuity, and its current and past importance. We found four oven types in daily use as well as in ritual and celebratory contexts. These involve both men and women in a way that favors transmission of traditional knowledge to the next generation and promotes social bonding and ethnic identity. Of the 46 plant species used in their construction or for the dishes cooked in them, 82% are native and produced in traditional agricultural systems: milpa (kool in Maya) maize-bean-squash association and conuco (pach pakal in Maya) based on tubers such as manioc (Manihot esculenta Crantz). Research suggests that this food preparation technology has the same antiquity as its associated agricultural systems (approximately 3400 to 3000 B.C.E.). Earth ovens were probably used to cook roots and meat in the Archaic and then to cook tamales (vegetal-wrapped maize dough) beginning in the Preclassic. Continuity of traditional agricultural and cultural practices has favored preservation of earth ovens.  相似文献   

14.
This article discusses the change among Yucatec Maya farmers from traditional shifting milpa agriculture to intensive horticultural production for the Mexican market. The process of agricultural intensification among this group of peasant farmers has involved movement toward an increasingly sedentary form of production which has heightened reliance on the use of chemicals with negative consequences for the environment. The research, which focuses on the pressure on producers to abandon more sustainable forms of cultural controls against crop loss in favor of modern chemical controls, raises the issue of the transferability of sustainable traditional technology to small commercial farmers in the tropics. More specifically, the article draws attention to the sometimes overlooked issue of economic, as well as environmental, sustainability in discussions on agricultural development and resource management.Parts of this article were presented at the 89th Annual Meeting of the American Anthropological Association in New Orleans in November 1990, as well as at a conference in Mérida in Yucatan entitled La modernización de la milpa en Yucatán: utopía o realidad in May 1991.  相似文献   

15.
While responding to a question on medical errors in an in-depth interview, a physician told a story about a medical error. The story revealed his silent involvement in the evolution of the error. His response is presented as a text requiring interpretation. Fine details of his manner of speaking are displayed in order to disclose what he said and what it meant. In interpreting the text, phenomenological and sociolinguistic methods are used.  相似文献   

16.
Religious rituals that are painful or highly stressful are hypothesized to be costly signs of commitment essential for the evolution of complex society. Yet few studies have investigated how such extreme ritual practices were culturally transmitted in past societies. Here, we report the first study to analyze temporal and spatial variation in bloodletting rituals recorded in Classic Maya (ca. 250–900 CE) hieroglyphic texts. We also identify the sociopolitical contexts most closely associated with these ancient recorded rituals. Sampling an extensive record of 2,480 hieroglyphic texts, this study identifies every recorded instance of the logographic sign for the word ch’ahb’ that is associated with ritual bloodletting. We show that documented rituals exhibit low frequency whose occurrence cannot be predicted by spatial location. Conversely, network ties better capture the distribution of bloodletting rituals across the southern Maya region. Our results indicate that bloodletting rituals by Maya nobles were not uniformly recorded, but were typically documented in association with antagonistic statements and may have signaled royal commitments among connected polities.
No longer can evolutionists dismiss such works [of ritual sacrifice] as scholarly, but irrelevant, esoterica–explorations of the bizarre but insignificant elements of Precolumbian culture…we must address this ideological data base with the same interest that we would give to studies of settlement patterns, subsistence systems, or political institutions [1].
  相似文献   

17.
18.
Whale shark (Rhincodon typus, Smith, 1828) is an endangered species with anthropogenic pressures due to increasing demand of encounter tourism activities. Research efforts to identify management and conservation strategies for this species are needed. The Northern Mexican Caribbean is one of the most important feeding aggregation sites of whale sharks worldwide. In this study, Mexican Caribbean whale shark feeding habits are assessed by means of fatty acid (FA) signature analysis, a biochemical non-destructive technique widely applied in trophic ecology studies. Sub-dermal tissue biopsies of 68 whale sharks and samples of their potential prey (zooplankton) were collected during 2010 and 2011 in two areas with high R. typus abundance. Zooplankton samples (n?=?17) were divided in two categories: mixed zooplankton (several groups of zooplankton) and fish eggs (> 95% of sample components were fish eggs). FA profiles of whale shark tissue sampled between years showed significant variability; while there was no intraspecific differences in FA signature related to sex, size and location. FA profiles of whale sharks and their potential prey were dominated by saturated fatty acids (SFA). R. typus FA signature was significantly different from that of mixed zooplankton; on the other hand, whale shark and fish egg FA profiles formed groups with overlapping values and registered high levels of oleic acid. PUFA average ω3/ ω6 ratio on whale shark FA profiles for both years was below 1. Arachidonic acid (ARA) percentage was higher in whale shark biopsies (13.2% in 2010, 6.8% in 2011) compared to values observed in fish eggs (2.0%) and mixed zooplankton (1.4%). Similarity between FA profiles of whale sharks and fish eggs, low levels of bacterial FA found in R. typus biopsies, as well as whale shark feeding behavior observations in the study area, suggest that R. typus is feeding mainly on surface zooplankton in Mexican Caribbean; however, elevated ARA percentages in whale shark samples may indicate that this species has complementary feeding sources, such as demersal zooplankton, which has been reported in other aggregation sites. Results obtained contribute to the knowledge of the whale shark trophic ecology in the area, but are inconclusive. Further studies are recommended to evaluate whale shark FA profiles from different tissues (muscle or blood); also, broader information is needed about zooplankton FA signature in the study area.  相似文献   

19.
Tropical forest animals are at high risk worldwide as a result of over-exploitation and forest clearing. Zooarchaeological studies of animal use by the ancient Maya of the southern lowland regions of Guatemala, Honduras, Belize, and Mexico provide long-term historical information on animal populations under conditions of human population growth and climatic change that is valuable to both archaeology and conservation biology. In this paper, zooarchaeological data from 35 chronologically defined faunal sub-samples recovered from 25 ancient Maya archaeological sites are used to assess the effects of ancient hunting on animal populations of the Maya region between the Preclassic and Colonial periods (2000 BC–AD 1697). The variations in species abundance are used as a proxy for describing changes in ancient Maya hunting practices and hunted animal populations, interpreted on the basis of hunting efficiency models from foraging ecology. A significant reduction in the proportion of large mammals, particularly Odocoileus virginianus, in zooarchaeological assemblages between the Late Classic (AD 600–850) and Terminal Classic/Postclassic periods (AD 850–1519) suggest that over-hunting during the Late Classic may have led to a reduction in availability of these animals to the ancient Maya hunters in the later periods. This finding is discussed in relation to important social and environmental variations to evaluate the impact of hunting and other factors such as forest clearance and climate on ancient animal populations in the Maya region.  相似文献   

20.
Mexican ants of the genus Dolichoderus are revised. Five species of the genus are recorded: D. bispinosus (Olivier, 1792), D. diversus Emery, 1894, D. lutosus (Smith, 1858), D. mariae Forel, 1885 and D. plagiatus (Mayr, 1870). Dolichoderus tridentanodus Ortega-De Santiago et Vásquez-Bolaños, 2012 is synonymized with Camponotus mucronatus Emery, 1890. Early records of D. germaini Emery, 1894 and D. lugens Emery, 1894 from Mexico are misidentifications and those species are excluded from the list of the Mexican fauna. Dolichoderus mariae Forel, 1885 is newly reported for the fauna of Mexico. Identification key to Mexican Dolichoderus species is given.  相似文献   

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