نتایج جستجو برای: agropastoral systems
تعداد نتایج: 1183457 فیلتر نتایج به سال:
Evidence from the anthropological record indicates that in most human societies, parents control the mating access to their offspring. Based on these data, a model of sexual selection has been recently proposed, whereby along with female and male choice, parental choice constitutes a significant sexual selection force in our species. This model was found to provide a good account for the mating...
in this thesis, using concepts of wavelets theory some methods of the solving optimal control problems (ocps). governed by time-delay systems is investigated. this thesis contains two parts. first, the method of obtaining of the ocps in time delay systems by linear legendre multiwavelets is presented. the main advantage of the meth...
Our understanding of when and how humans adapted to living on the Tibetan Plateau at altitudes above 2000 to 3000 meters has been constrained by a paucity of archaeological data. Here we report data sets from the northeastern Tibetan Plateau indicating that the first villages were established only by 5200 calendar years before the present (cal yr B.P.). Using these data, we tested the hypothesi...
A large proportion of rural households, particularly in the dry land areas, representative for more than 10% world's surface and up to 80% Morocco, depend their livelihoods on livestock. They exploit livestock's capacity live very harsh environments using herd-mobility at multiple scale level. Understanding contributions livestock household national economy raises complex research issues challe...
This new project studies the diversity of socioecological niches across agropastoral transition in Andes, utilising a multi-isotope approach to track human territories and allocate subsistence tasks. During period, we discriminate different diachronic with varying extents maize farming altitudinal mobility.
The Middle and Late Bronze Ages of western Anatolia (modern Turkey) remains poorly understood in comparison with its Mycenaean Hittite neighbours, especially agricultural economies land use. Kaymakçı is the largest Age citadel excavated to date new archaeobotanical zooarchaeological data from site presented here shed light on regional Agricultural practices at focused barley bitter vetch farmin...
Nitrogen isotopic studies have the potential to shed light on the structure of ancient ecosystems, agropastoral regimes, and human-environment interactions. Until relatively recently, however, little attention was paid to the complexities of nitrogen transformations in ancient plant-soil systems and their potential impact on plant and animal tissue nitrogen isotopic compositions. This paper dis...
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