首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 0 毫秒
1.
Abstract

Niche construction theory, a branch of evolutionary biology, places emphasis on the capacity of organisms, through their metabolism, activities and choices, to modify natural selection in their environment and thereby act as co-directors of their own evolution as well as that of others. Humans are potent niche constructors, and understanding how niche construction regulates ecosystem dynamics is central to understanding the impact of human populations on their ecological and developmental environments. A classic example is provided by the evolution of dairying by Neolithic groups in Europe and the significant role played by storage in the development of the dairying niche.  相似文献   

2.
3.
The application of crop processing models to macro-botanical assemblages has traditionally been used to interpret past husbandry practices and organisation of labour involved in crop-processing. Phytoliths offer an alternative method of analysis because they are durable in most environments, regardless of whether plant parts are charred, and the identification of plant types and plant parts allows them to be used in much the same way as macro-botanical remains. Indeed macro-remains and phytoliths are complementary datasets for examining the input of plant parts, such as crop-processing waste, into archaeological deposits. We outline crop-processing models in relation to macro-remains and then develop the framework for their application to archaeological phytolith assemblages. Rice and millet processing models are explored in relation to patterns expected in both macro-remains and phytoliths. The utility of these models is demonstrated with archaeological evidence from the site of Mahagara, an early farming site in North-Central India. The results indicate a way to employ phytoliths in archaeology which complements the fragmentary evidence available from plant macroremains.  相似文献   

4.
5.
Some of the most politically and culturally significant cities in first millennium BC northern Mesopotamia were located in agriculturally marginal landscapes. In order to sustain these settlements, variant cultivation techniques were practiced by local populations. Understanding the dynamics and implications of crop management practices requires that socio-ecological variables be addressed over recurrent crop cycles. This paper employs a coupled socio-ecological modeling approach that enables interactions between a quantitative environmental model and an agent-based social model by using the ENKIMDU simulation tool. The reconstructed landscape near the ancient city of Assur is used as the example setting to test the effectiveness of simulated cultivation strategies. These methods include sole dependence on biennial fallow and rainfall, gravity flow irrigation, application of manure, and the integration of all these approaches. Results obtained within ENKIMDU attempt to delineate agricultural constraints and potential benefits of the specific anthropogenic processes and strategies addressed.  相似文献   

6.
ABSTRACT

Once considered a marginal side-story to the Fairbank-inspired narrative of an agrarian-centered, land-bound China, Chinese maritime history has received increasing attention in the United States as a research field in its own right. Through sustained engagement with trends in regional, comparative, military, and global histories, and dialogue with European and Asian academia, the efforts of several generations of scholars after Fairbank have slowly broken down his paradigm. Studies of maritime China are increasingly showing a broad, integrated maritime East Asian region comprising the seas and their littoral from the Sea of Japan to the Strait of Melaka. This article surveys the historiographical development of the field. It also highlights my work-in-progress on autonomous overseas Chinese polities along the Gulf of Siam littoral in mainland Southeast Asia during the eighteenth century as one possible future path for the study of maritime Chinese history.  相似文献   

7.
This paper introduces a new methodology to identify space-time patterns of regional resilience using a micro-level approach. The novel empirical tool combines geographically weighted regression with panel stochastic frontier analysis with endogenous covariates. The analysis is implemented on a panel of farm holdings operating in the Italian wine industry, focusing on the impact of a major institutional change. The results show the effectiveness of the new procedure in identifying geographical clusters of wine producers who reacted to the shock in similar ways. The responses are found to be homogeneous within specific territories and heterogeneous between regions.  相似文献   

8.
This article seeks to dispel the popular myth surrounding the food crises which precipitated food riots in the global South in 2008. Arguing from a structural and historical perspective, the article suggests that global hunger is a deep-rooted crisis that is embedded in the social and structural variables associated within the nation-state that places a restraint on the self-regulating capacity of nation-states in the South. Internationalizing the food crisis, however, will do more harm to the south’s agricultural transformation and rural development. The article argues for integrated rural development that will increase output growth through an institutional, technological, and marketing strategy.  相似文献   

9.
This paper explores the role of classical music in the construction of nationalism in the twentieth century. It takes its point of departure in the Danish composer Carl Nielsen and analyses competing interpretations and receptions of his works. The paper seeks to move beyond the single case study. Hence, it includes three additional cases: the Soviet composer Dimitry Shostacovich (particularly the reception of his 5th Symphony); the position of Paul Hindemith in the Third Reich; and finally the development in Aron Copland's oeuvre. In so doing, it aims to clarify the relationship between classical music and nationalism.  相似文献   

10.
Research on regional economic development increasingly embraces more nuanced perspectives on the evolution of clusters, industries and agglomerations. The extent to which the emergence and decline of clusters can be directed with intentional regional development strategies is, however, a major point of discussion. The article links the cluster life cycle concept to regional development strategies in order to examine the trajectory of Europe’s largest chemical complex in and around the Port of Antwerp (Belgium). This chemical cluster has matured and currently is in a state of stability. Although the cluster did not experience growth over the last decades in terms of new entrants, it did transform internally and maintained its importance as a production centre. Thus, whereas lock-in mechanisms hampered growth, they also prevented the cluster from going into a state of decline. We argue that while regional development strategies stimulated new emerging clusters in the Flemish region, vested interests in the port and associated lock-in mechanisms have resisted such developments in Antwerp. New growth trajectories based on the chemical cluster were therefore difficult to recreate in the Antwerp region.  相似文献   

11.
At the European level, several strategic documents concerned with spatial and urban development have been published during the last decades. While these documents are essential to communicate European ideas and objectives, they are often regarded least influential in practice due to their abstract nature, legally non-binding status and lack of allocated resources. Though these limitations apply to the EU Urban Agenda, this recently published policy paper introduces partnerships as a new implementation tool. The partnerships can be regarded as innovative in two respects: On the one hand, they involve new actors, most importantly cities, in European policy debates. On the other hand, they ensure the anchorage of the Urban Agenda with a broad range of actors at various spatial scales without challenging its legally non-binding status. The Urban Agenda can thus be understood as another example of the move towards soft European spatial planning and urban development. This article investigates the notion of partnership as a soft planning and governance tool within the Urban Agenda. Moreover, based on expert interviews, it presents early opinions and expectations of actors involved in the development of the Urban Agenda and the partnerships on affordable housing.  相似文献   

12.
Engraved slate plaques are a common part of the grave goods found in the Late Neolithic-Copper Age I megaliths of the southwest of the Iberian Peninsula (~3500–2700 cal BC). These objects have received a great deal of attention, since they are the first symbolic figurines to have become widespread in the Iberian Peninsula (almost 4000 plaques are estimated to be known today). Most previous studies, even from different and opposing archaeological perspectives, have highlighted the anthropomorphic nature of these plaques. The hypotheses regarding the evolution of their anthropomorphism and possible function have been diverse, yet there is a noteworthy absence of taxonomical studies in which the diversity and stylistic sequence of these symbolic objects have been systematically approached. This paper puts forward several models for the evolution of the anthropomorphism of the engraved plaques, based on cladistics and occurrence seriation. The results are then analyzed in conjunction with the currently available chronological and stratigraphic information. The paper concludes with a proposal of the most probable typology and its sequence, leading to a better understanding of the diversity and evolution of the plaques. Beyond this particular phenomenon, this paper provides insights into the study of the evolution of the symbolic representation of the human figure, through the development of an innovative methodological protocol.  相似文献   

13.
The concept of cultural evolution profoundly affected the objectives and methods employed in the social sciences in the earlier part of this century but it has largely been ignored by geographers. In recent years a number of American cultural anthropologists have re-examined the concept of cultural evolution, including Sahlins and Service, who consider that cultural evolution is analogous to biological evolution involving the diversification of cultural forms through adaptive modification and the progress of culture through successive levels of development. They have called these two processes specific evolution and general evolution respectively and from these two perspectives on cultural evolution they have developed the Law of Cultural Dominance. Certain operational problems exist in the application of the concept of cultural evolution, but once they have been surmounted it promises to constitute a valuable mode of explanation in the analysis of cultures and cultural change.  相似文献   

14.
Evolutionary theories of technological change arguably exert the greatest impact on our understanding of technological change. According to evolutionary economic theory the process of technological change is driven by the continual creation of technological variety through innovation and innovative firm entry and the destruction of variety through the processes of imitation (diffusion), selection and plant exit. This joint process of variety creation and destruction translates micro-economic diversity into technological progress. A third principle of evolutionary economic theory is the principle of heredity, the communication of information and knowledge over time. The dependence of technology on past and existing knowledge tends to move firms, regions and countries along relatively well-defined technological trajectories. In this paper technology is measured as a pair of capital and labour input coefficients. Empirical analysis of the Danish food processing industry reveals that technology varies markedly across regions and that differences in regional technological performance persist over time. Multivariate analysis of variance confirms that spatial variation in techniques of production is significant. This study underpins the evolutionary theory of technological change confirming that in the Danish food processing industry, regions move along relatively well-defined technological trajectories.  相似文献   

15.
The first inhabitants of Jamaica are now generally referred to as Taínos. It is likely that they arrived in the island after about 650 AD and were extinct by the end of the 16th century. In 1968, during the exploration of a small cave in Bull Savannah, St. Elizabeth parish, Dr. James Lee found two skulls, teeth, bones, and pottery. The aim of this work is to interpret in a biocultural perspective the one cranium with pathological lesions, such as caries sicca. This adult individual had an artificially modified cranium, a cultural practice common among Taínos, which was studied macroscopically and by radiological and computerized tomography. The radiocarbon dates, obtained by AMS, point to the 10th–11th centuries AD and the stable isotopes analysis revealed either the ingestion of a mixed C3/C4 plant diet or an extensive intake of marine resources, the former being more likely. This is the first cranium to be found in Jamaica with evidence of Pre-Columbian treponematosis, most probably syphilis, which has also been demonstrated in a few cases elsewhere in the Caribbean region. This finding agrees with the ethnohistorical narrative, according to which syphilis existed among the native population, who used plant extracts to treat the disease. This paper contributes to our knowledge about the Taínos and the history of treponematosis in the Americas.  相似文献   

16.
17.
Foley, Robert. Another Unique Species: Patterns in Human Evolutionary Ecology. Harlow: Longman; New York: Wiley, 1987 xxii + 313 pp. including references and index. £12.95.

Ingold, Tim. The Appropriation of Nature: Essays on Human Ecology and Social Relations. Manchester: Manchester University Press, 1986. ix + 287 pp. including references and index. £27.50.  相似文献   

18.
19.
20.
Since the processing of crops has a direct effect on the composition of archaeobotanical samples, variation due to crop processing must be filtered out before using samples for the study of crop economy and husbandry. As the archaeological context of plant material does not often provide a reliable basis for the identification of crop processing products and byproducts, this paper presents a method based on the statistical comparison of archaeological samples with ethnographically collected material and on an internal statistical analysis of the archaeological samples themselves. These analyses make use of differences in the categories of weed seeds extracted at each stage of the crop processing sequence and are thus more reliable and more widely applicable than simple calculations of the relative quantities of grain, chaff and weed. Ethnographic and archaeological material from Greece is used to illustrate the method and some of the wider implications of the results are discussed.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号