Diet, Energy and Evolution
نویسندگان
چکیده
S • A3 expansion of C4 grasses. Mesowear analysis and mandibular measurements were recorded on a suite of common Siwalik ungulate taxa including bovids, tragulids, giraffids, and equids dated before and after 8 Ma. Results are compared to published microwear and stable carbon isotope data. Preliminary data suggest that the dietary reconstruction obtained for some taxa as well as the observation of change in diet after 8 Ma may be discordant between the four methods. This study illustrates the importance of using multiple proxies in paleodietary and paleoecological analyses. Acknowledgements: MB is a McCurdy American School of Prehistoric Research (ASPR) postdoctoral fellow, Harvard University. Funding for this project has been provided by: NSF grant EAR-01255663 and the ASPR fund of the Peabody Museum, Harvard University. Preliminary Results from Paleolithic Sites on the Red Sea Coast of Eritrea A. Beyin, Anthropology, Stony Brook University, USA G. Woldu, Department of Earth Sciences, University of Asmara, ERITREA This paper reports results of recent fieldwork in the Gulf of Zula and Buri Peninsula (Red Sea Coast) of Eritrea. Three sites were investigated, Asfet, Gelalo NW, and Misse East. Located on the southwest coast of the Gulf of Zula, Asfet is a multi-component site characterized by high diversity of raw materials and artifact types that could be attributed mainly to Earlier and Middle Stone Age industries. The Gelalo NW and Misse East sites are both located on the Buri Peninsula. Both sites revealed artifact types distinctive of the Later Stone Age tradition, namely backed blades and flakes. The research involved systematic survey, geological and topographic mapping, surface collection, and test excavations. Test excavations at Asfet, Gelalo NW, and Misse East uncovered lithic artifacts and shells in close association on the surface and in the sub-surface, suggesting human exploitation of coastal-marine resources. The chronological placement of the sites and their implications for models of Paleolithic coastal adaptations and human dispersals will be
منابع مشابه
نقش احساس انرژی در رابطه رهبری تحولی با درگیر شدن کارکنان در خلاقیت کاری
This study was conducted aiming to survey role of feeling of energy in relation of evolution leadership with staff contribute in work creativity. Statistical population was employees and staffs of Hier Company who were 525 persons (2009 summer). 332 employees were selected for contribution in the study by quota stratified sampling. Research instruments were 8-question feeling-of-energy question...
متن کاملEnergy Type and Amount in the Diets of Broiler Chickens: Effects on Performance and Duodenal Morphology
The present study was conducted to investigate the effects of dietary energy sourcesandlevels on performance and small intestinal morphology in broiler chickens. A total of 600 one-day-old broiler chicks were randomly divided into five treatments with four replicates each. Chicks were fed diet based on corn as main energy source and energy level based on Cobb 500 manual instruction considered c...
متن کاملاثر انرژی دوره پرورش و سطوح انرژی و چربی جیره تخمگذاری بر عملکرد مرغانهای لاین
An experiment with 720 pullets was conducted to investigate the effect of dietary energy levels of pullet and dietary energy and fat of laying ration on subsequent performance parameters during 14-20 and 22-44 weeks of age. In the first period, white leghorn pullets were fed with two diets of low and high density energy (2600 and 3200 Kcal ME/kg). In the lating period (second period), birds, in...
متن کاملاثر انرژی دوره پرورش و سطوح انرژی و چربی جیره تخمگذاری بر عملکرد مرغانهای لاین
An experiment with 720 pullets was conducted to investigate the effect of dietary energy levels of pullet and dietary energy and fat of laying ration on subsequent performance parameters during 14-20 and 22-44 weeks of age. In the first period, white leghorn pullets were fed with two diets of low and high density energy (2600 and 3200 Kcal ME/kg). In the lating period (second period), birds, in...
متن کاملEvaluation of Enzyme and Probiotic Supplemention in Diet Containing Different Levels of Energy on Growth Performance, Body Composition and net Energy Improvment in Broiler Chickens with Wheat-Soybean Meal Diet
Extended Abstract Introduction and Objective: The most important factor in adjusting poultry feed consumption is energy, which is correlated with feed cost. The net energy system is more accurate and useful for measuring the energy utilization of poultry. The presence of anti-nutritional compounds such as non-starch polysaccharides (NSPs) and phytate compounds in some poultry feed items ...
متن کاملInfluence of Different Dietary Levels of Energy and Protein on Reproductive and Post Hatch Growth Performance in Japanese Quails
The response of laying Japanese quails to dietary levels of energy and protein on performance, egg quality, hatchability, fertility and their effect on subsequent offspring live body weight was investigated. A total of 432 Japanese quails (13 weeks old) were divided into nine treatments. Each treatment comprised of four replicates of twelve birds (9 females and 3 males). Nine diets including th...
متن کامل