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Julio Mercader Fernando Astudillo Mary Barkworth Tim Bennett Chris Esselmont Rahab Kinyanjui Dyan Laskin Grossman Steven Simpson Dale Walde 《Journal of archaeological science》2010
The most common grass phytoliths from “Zambezian” miombos are described here for the first time. Their potential for long term preservation in sediments makes them a useful tool in the reconstruction of ancient plant communities and plant/human interactions. We processed 60 plant samples (26 identified genera and species), with an average of 300 phytoliths counted per sample to a total of 18,586. Forty-seven morphotypes were described as per the International Code for Phytolith Nomenclature, with exceptions, including forty-five discreet shapes and two articulated forms, which can be used as comparative reference materials. We conducted three forms of statistical analyses: Discriminant Analysis, Cluster Analysis, and Principal Component Analysis. The highest biomineral content was recorded among the Bambuseae and Paniceae, while the lowest silica production is detected in the Cynodonteae tribe. Typologically, the subfamily Panicoideae yielded 50% of the types reported here, 32% are from the Chloridoideae, 12% from the Bambusoideae, and 8% from the Arundinoideae sensu lato. Overall, the idealized Zambezian Poaceae phytolith spectrum is dominated by a small subset of Poaceae short cells, which include five morphotypes conventionally associated with Panicoid grasses (Bilobate concave outer margin long shaft, Bilobate concave outer margin short shaft, Bilobate convex outer margin long shaft, Bilobate convex outer margin short shaft, Cross), one morphotype commonly seen in Chloridoid taxa (saddle), and two types that appear across subfamily boundaries (tower, tower horned). The next logical step to take in regional phytolith research is the account of phytoliths deposited in soils underneath living plants, for they represent the interface between existing vegetation communities and the inevitably distorted fossil assemblages that the paleobotanist uses for environmental reconstruction. 相似文献
93.
Barney G. Bartelle René L. Vellanoweth Elizabeth S. Netherton Nicholas W. Poister William E. Kendig Amira F. Ainis Ryan J. Glenn Johanna V. Marty Lisa Thomas-Barnett Steven J. Schwartz 《Journal of archaeological science》2010
To date more intact dog remains have been found on San Nicolas than on any of the other seven California Channel Islands. However, little is known about them. During the 2007 summer field season we excavated a medium sized young male dog in a flexed burial position from a pit at CA-SNI-25, a large Native American village site. The dog exhibits hypodontia, noticeable tooth attrition, severe scapular trauma, and vertebral, rib, and phalanx pathologies. Most of the injuries appear to have resulted from a severe blunt force trauma of unknown origin and it is likely the dog would not have survived without human care. The results of our analysis contribute to the, somewhat limited, published data on archaeological dogs in California. In this paper we describe the biological characteristics of the dog especially his anomalies and pathologies and compare them with published reports of other North American archaeological dogs with similar conditions. 相似文献
94.
Steven Tufts 《对极》2006,38(2):350-373
This article explores the “cultural project” of a hotel workers’ union in Toronto, Ontario, Canada. It is an examination of the efforts of HERE (now UNITE‐HERE) Local 75 to transform the identity and image of hotel workers through the promotion of cultural activities involving rank‐and‐file members. Part of a larger union renewal project, the cultural project attempts to build solidarity by connecting with members’ lives beyond the workplace. Furthermore, the union's cultural strategies are linked to the development of the city's tourism sector, situating the union's efforts in broader processes of place promotion. The investigation seeks to identify how worker engagement with the cultural implicates organized labour in contradictory processes producing both emancipatory and oppressive economic landscapes. 相似文献
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The Fremont Complex: A Behavioral Perspective 总被引:1,自引:0,他引:1
The Fremont complex is composed of farmers and foragers who occupied the Colorado Plateau and Great Basin region of western North America from about 2100 to 500 years ago. These people included both immigrants and indigenes who shared some material culture and symbolic attributes, but also varied in ways not captured by definitions of the Fremont as a shared cultural tradition. The complex reflects a mosaic of behaviors including full-time farmers, full-time foragers, part-time farmer/foragers who seasonally switched modes of production, farmers who switched to full-time foraging, and foragers who switched to full-time farming. Farming defines the Fremont, but only in the sense that it altered the matrix in which both farmers and foragers lived, a matrix which provided a variety of behavioral options to people pursuing an array of adaptive strategies. The mix of symbiotic and competitive relationships among farmers and between farmers and foragers presents challenges to detection in the archaeological record. Greater clarity results from use of a behavioral model which recognizes differing contexts of selection favoring one adaptive strategy over another. The Fremont is a case where the transition from foraging to farming is followed by a millennium of adaptive diversity and terminates with the abandonment of farming. As such, it serves as a potential comparison to other cases in the world during the early phases of the food producing transition. 相似文献
97.
This study presents a model of net interstate migration in the United States during the 1970s. Of 5 composite dimensions derived from an exploratory factor analysis of 20 candidate predictors of interstate migration, the greatest predictive power in an ordinary least squares regression analysis is attained by a set of quality-of-life correlates of migration. Composites of fiscal policy and labor relations variables, more controllable by public decisionmakers, are also significant. 相似文献
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