Guila Naquitz Research Articles

Domestication and lowland adaptation of coastal preceramic maize from Paredones, Peru.

Archaeological cobs from Paredones and Huaca Prieta (Peru) represent some of the oldest maize known to date, yet they present relevant phenotypic traits corresponding to domesticated maize. This contrasts with the earliest Mexican macro-specimens from Guila Naquitz and San Marcos, which are phenotypically intermediate for these traits, even though they date more recently in time. To gain insights into the origins of ancient Peruvian maize, we sequenced DNA from three Paredones specimens dating ~6700-5000 calibrated years before present (BP), conducting comparative analyses with two teosinte subspecies (Zea mays ssp. mexicana and parviglumis) and extant maize, that include highland and lowland landraces from Mesoamerica and South America. We show that Paredones maize originated from the same domestication event as Mexican maize and was domesticated by ~6700 BP, implying rapid dispersal followed by improvement. Paredones maize shows no relevant gene flow from mexicana, smaller than that observed in teosinte parviglumis. Thus, Paredones samples represent the only maize without confounding mexicana variation found to date. It also harbors significantly fewer alleles previously found to be adaptive to highlands, but not of alleles adaptive to lowlands, supporting a lowland migration route. Our overall results imply that Paredones maize originated in Mesoamerica, arrived in Peru without mexicana introgression through a rapid lowland migration route, and underwent improvements in both Mesoamerica and South America.

Maize, beans and the floral isotopic diversity of highland Oaxaca, Mexico

Oaxaca, Mexico has been inhabited by humans for over 10,000 years. From the time of earliest habitation, this environment provided a wide floral subsistence to its human inhabitants, notably documented at the cave site of Guila Naquitz. Light stable isotopes, primarily carbon and nitrogen, have been used in dietary and environmental reconstructions throughout Mexico and Central America. We report a large isotopic study of wild and market plants from Oaxaca that demonstrates 1) overlapping δ13C values of C4 plants, including maize, and plants that utilize the Crassulacean Acid Metabolism (CAM) pathway for biosynthesis, 2) the existence of a significant C4 grass biomass, 3) the lack of isotopic separation in the δ15N of legumes and non-leguminous plants and 4) the increase in the nitrogen isotopic composition of crop plants relative to wild plant averages. These four observations are potential complicating factors in interpretations involving the origins and spread of maize agriculture, the relative amount of maize in the diet and assessments of trophic level or meat contributions to the human diet.

After the ice: a global human history, 20,000-5000 BC

20,000 B.C., the peak of the last ice age--the atmosphere is heavy with dust, deserts, and glaciers span vast regions, and people, if they survive at all, exist in small, mobile groups, facing the threat of extinction. But these people live on the brink of seismic change--10,000 years of climate shifts culminating in abrupt global warming that will usher in a fundamentally changed human world. After the Ice is the story of this momentous period--one in which a seemingly minor alteration in temperature could presage anything from the spread of lush woodland to the coming of apocalyptic floods--and one in which we find the origins of civilization itself. Drawing on the latest research in archaeology, human genetics, and environmental science, After the Ice takes the reader on a sweeping tour of 15,000 years of human history. Steven Mithen brings this world to life through the eyes of an imaginary modern traveler--John Lubbock, namesake of the great Victorian polymath and author of Prehistoric Times. With Lubbock, readers visit and observe communities and landscapes, experiencing prehistoric life--from aboriginal hunting parties in Tasmania, to the corralling of wild sheep in the central Sahara, to the efforts of the Guila Naquitz people in Oaxaca to combat drought with agricultural innovations. Part history, part science, part time travel, After the Ice offers an evocative and uniquely compelling portrayal of diverse cultures, lives, and landscapes that laid the foundations of the modern world.

The archaeological remains of leucaena (Fabaceae) revised

Archaeological specimens of Leucaena (Fabaceae; Mimosoideae) previously published (Tamaulipas, Tehuacan Valley, and Oaxaca Valley) which are housed at the Departmento de Prehistoria, Instituto Nacional de Antropologia e Historia, Mexico City, were reexamined. Selected remains from Tehuacan were observed with scanning electron microscopy and ultrastructural features were compared to material from herbarium specimens. External epidermis near margins of legume valves provided identification characteristics (stomata abundance and morphology, texture, pubescence). In Tehuacan, L. leucocephala subsp. glabrata was found in addition to two previously reported taxa—L. esculenta and L. diversifolia subsp. stenocarpa (L. pueblana). Acacia sericea, a wild tree with edible legumes, was frequently misidentified as Leucaena. In Guila Naquitz, Oaxaca, all samples reported as L. esculenta were identified as another edible, wild legume tree, Conzatia multiflora. Chronology was assigned following published reports and, also for Tehuacan, the field catalogue. Possible use was assigned based upon evidence of chewing and insect damage, indicating ripeness of legumes. No direct evidence of cultivation was found. However, the presence of L. esculenta in Tehuacan (since ca. 4000-1000 B.C.) and of L. I. glabrata (since ca. 300 B.C.-A.D. 780) suggests their introduction there as a cultivated plant.

The origins of agriculture and its consequences

Flannery, Kent, ed. Guila Naquitz: Archaic Foraging and Early Agriculture in Oaxaca, Mexico. Orlando, Florida: Academic Press, 1986. xix + 538 pp. including references, index, tables, figures, and Spanish synopsis. $98.50 cloth. Merbs, Charles F., and Robert J. Miller, eds. Health and Disease in the Prehistoric Southwest. Arizona State University Anthropological Papers No. 34. Tempe,: Arizona State University, 1985. xix + 402 pp. including chapter references, tables, figures, and photographs. $17.50 paper.

Guilá Naquitz: Archaic Foraging and Early Agriculture in Oaxaca, Mexico. Kent V. Flannery, ed

<b>Guilá Naquitz: Archaic Foraging and Early Agriculture in Oaxaca, Mexico</b>. <i>Kent V. Flannery</i>, ed

On Whallon's Use of Dimensional Analysis of Variance at Guila Naquitz

AbstractWhallon claims to have made a rigorous application of dimensional analysis of variance to the delineation of spatial artifact patterning at the site of Guila Naquitz. Questions are raised here pertaining to replicability and to the cultural formation processes of the archaeological record. These unresolved questions suggest that Whallon's optimistic claims for the utility of dimensional analysis of variance cannot be adequately evaluated at present.

Pollen Records of Guila Naquitz Cave

AbstractPollen recovered from the sediments of Guila Naquitz Cave, Oaxaca, is compared with pollen representing modern ecological patterns in the Valley of Oaxaca. This allows the reconstruction of both vegetational and climatic patterns for the period of preceramic occupancy of the cave: roughly, 6000-8000 B.C. A generally cooler yet more xeric climate apparently prevailed, as had been suggested by faunal analyses at Coxcatlan Cave near Tehuacan, Puebla. However, the floral and faunal resources available near the cave today were available there at the time of occupation. Pollen representing a plant that is closely related to modern maize is recognizable from the pollen record. The distribution of this pollen among the samples, as well as the macrofossil remains associated with the pollen and the reconstructed ecological pattern, indicate that the maize-like plant was being cultivated.

Pre-historic cucurbits from the Valley of Oaxaca

About 180 specimens of cucurbits were recovered from the Guila Naquitz Cave in the Valley of Oaxaca, Mexico, from strata dated at 8750-7840 B.C. to 1500 A.D. by Carbon- 14 analyses. 4 Almost 60% of the cucurbit specimens were of wild species of Cucurbita. A single seed may be that of the perennial squash or fig- leaf gourd, C. ficifolia Bouch e. All other cultivated squash material was C. pepo L., the summer squash. Cucurbita pepo prefers cool, dry environmental conditions. This suggests that farmers utilized the cave on a seasonal basis, because cultivars of C. pepo mature later and store better than those of C. moschata Poir. or C. mixta Pang., which would normally be the species expected to be cultivated at this latitude. Specimens of bottle gourd, Lagenaria siceraria (Mol.) Standl., were comparatively rare and comprised only 10% of the total. The scarcity of bottle gourd remains suggests that these gourds were not important for containers and household, use even in preceramic levels, or that they simply did not break many of their vessels during the limited time they occupied the cave. A second possibility is that agriculture was carried out at higher and cooler elevations, which C. pepo prefers but which are unfavorable for Lagenaria. A few Apodanthera seeds were found at all levels.