scholarly journals Fluvial deposits as an archive of early human activity

2007 ◽  
Vol 26 (22-24) ◽  
pp. 2996-3016 ◽  
Author(s):  
S. Mishra ◽  
M.J. White ◽  
P. Beaumont ◽  
P. Antoine ◽  
D.R. Bridgland ◽  
...  
2017 ◽  
Vol 166 ◽  
pp. 114-149 ◽  
Author(s):  
Parth R. Chauhan ◽  
David R. Bridgland ◽  
Marie-Hélène Moncel ◽  
Pierre Antoine ◽  
Jean-Jacques Bahain ◽  
...  

Author(s):  
William R. Burch ◽  
Gary E. Machlis ◽  
Jo Ellen Force

This chapter looks at how the roots of human ecology lie primarily in general ecology, sociology, geography, and anthropology, as documented by numerous literature reviews. The idea for the application of general ecological principles to human activity was sparked by sociologists at the University of Chicago in the 1920s and 1930s. Sociologists Robert E. Park and Ernest W. Burgess drew analogies between human and nonhuman communities, describing society’s symbiotic and competitive relationships as an organic web. Biological concepts such as competition, commensalism, succession, and equilibrium were freely borrowed, mirroring the biologists’ use of social science concepts. Borrowing from contemporary plant ecologists and their focus on plant community zones, early human ecologists moved from classrooms to city streets to map “natural areas” or zones of the urban metropolis.


2020 ◽  
Author(s):  
Naimeng Zhang ◽  
Qinghai Xu ◽  
Dongju Zhang ◽  
Ulrike Herzschuh ◽  
Zhongwei Shen ◽  
...  

<p>Understanding the paleoenvironment (such as climate and landscape) in the area where the early ancient human appears on the Tibetan Plateau is an interesting topic. Based on the results of pollen data on the Yaowuyao loess section of the Qinghai Lake Basin, we used landscape reconstruction algorithms to reconstruct the changes in vegetation cover for 15,000 years. It is shown that the vegetation in the Yaowuyao area changed from temperate steppe (15-7.5 ka) to forest-steppe (7.5-4 ka). Compared with previous studies on the sediment in Qinghai Lake, our study can better reflect the local environment of the Qinghai Lake basin. Furthermore, based on the paleoclimate change data and archeological data from the surrounding areas, it is noticed that while precipitation increases and trees increase, human activities decrease. This may be caused by the substance and strategies of the ancient human beings that have adapted to the steppe. In addition, our results also show that the intensity of ancient human activity has a negative correlation with plant biodiversity, which may be related to human disturbance to the environment. Our paleoecological and environmental study not only shows the paleoenvironment of the early human activities on the Qinghai-Tibet Plateau but also revealed possible early human activity signals.</p>


2018 ◽  
Vol 130 (2) ◽  
pp. 14
Author(s):  
Stephen P. Carey ◽  
John E. Sherwood ◽  
Megan Kay ◽  
Ian J. McNiven ◽  
James M. Bowler

Shelly deposits at Moyjil (Point Ritchie, Warrnambool), Victoria, together with ages determined from a variety of techniques, have long excited interest in the possibility of a preserved early human influence in far south-eastern Australia. This paper presents a detailed analysis of the stratigraphy of the host Bridgewater Formation (Pleistocene) at Moyjil and provides the context to the shelly deposits, evidence of fire and geochronological sampling. We have identified five superposed calcarenite–palaeosol units in the Bridgewater Formation, together with two prominent erosional surfaces that may have hosted intensive human activity. Part of the sequence is overlain by the Tower Hill Tuff, previously dated as 35 ka. Coastal marine erosion during the Last Interglacial highstand created a horizontal surface on which deposits of stones and shells subsequently accumulated. Parts of the erosional surface and some of the stones are blackened, perhaps by fire. The main shell deposit was formed by probable mass flow, and additional shelly remains are dispersed in the calcareous sand that buried the surface.


2018 ◽  
Vol 5 (1) ◽  
Author(s):  
Justin Allen Holcomb ◽  
Curtis Runnels ◽  
Duncan Howitt-Marshall ◽  
Evangelos Sachperoglou

Despite Greece’s key geographic position between southeast Europe and southwest Asia, and its potential for documenting hominin dispersals, Lower and Middle Palaeolithic sites are rare. This suggests the need for research to identify deposits that may contain Palaeolithic artefacts. Here we describe 165 quartz and quartzite artefacts with Palaeolithic characteristics (based on technical and morphotypological definitions) from a private collection that was made from erosional lag deposits on the southeastern slopes of Mt. Pendeli and the northern edge of the Spata polje (a large karstic depression filled with terra rossas) in northeast Attica. Artefacts of the same type occur in the region of Ano Souli, another karstic depression. These karstic depressions are of interest because they resemble artefact-bearing deposits found at similar features such as Kokkinopilos in Epirus that have provided datable geologic contexts for Lower and Middle Palaeolithic artefacts. Our study suggests that Attica was frequented by hominins in the Lower and Middle Palaeolithic and that Pleistocene deposits in karstic depressions in Attica may preserve datable contexts for documenting early human activity. The lithic collection described here provides a glimpse of the potential of the region, and we recommend continued archaeological efforts in Attica to investigate the likelihood for buried Palaeolithic sites.


2007 ◽  
Author(s):  
Luci Fuscaldi Teixeira-Salmela ◽  
Sandra J. Olney ◽  
Revathy Devaraj

2019 ◽  
Author(s):  
Grant Duffy ◽  
Jasmine R Lee

Warming across ice-covered regions will result in changes to both the physical and climatic environment, revealing new ice-free habitat and new climatically suitable habitats for non-native species establishment. Recent studies have independently quantified each of these aspects in Antarctica, where ice-free areas form crucial habitat for the majority of terrestrial biodiversity. Here we synthesise projections of Antarctic ice-free area expansion, recent spatial predictions of non-native species risk, and the frequency of human activities to quantify how these facets of anthropogenic change may interact now and in the future. Under a high-emissions future climate scenario, over a quarter of ice-free area and over 80 % of the ~14 thousand km2 of newly uncovered ice-free area could be vulnerable to invasion by one or more of the modelled non-native species by the end of the century. Ice-free areas identified as vulnerable to non-native species establishment were significantly closer to human activity than unsuitable areas were. Furthermore, almost half of the new vulnerable ice-free area is within 20 km of a site of current human activity. The Antarctic Peninsula, where human activity is heavily concentrated, will be at particular risk. The implications of this for conservation values of Antarctica and the management efforts required to mitigate against it are in need of urgent consideration.


Author(s):  
Pierre Aubenque

Pierre Aubenque’s “Science Regained” (1962; translated by Clayton Shoppa) was originally published as the concluding chapter of Le Problème de l’Être chez Aristote, one of the most important and original books on Aristotle’s Metaphysics. In this essay, Aubenque contends that the impasses which beset the project of first philosophy paradoxically become its greatest accomplishments. Although science stabilizes motion and thereby introduces necessity into human cognition, human thought always occurs amidst an inescapable movement of change and contingency. Aristotle’s ontology, as a discourse that strives to achieve being in its unity, succeeds by means of the failure of the structure of its own approach: the search of philosophy – dialectic – becomes the philosophy of the search. Aubenque traces this same structure of scission, mediation, and recovery across Aristotelian discussions of theology, motion, time, imitation, and human activity.


1968 ◽  
Vol 58 (3) ◽  
pp. 481-496 ◽  
Author(s):  
Poul Hjortkjær Pedersen ◽  
Jørgen Falck Larsen

ABSTRACT The ultrastructure of granulosal lutein cells of 13 corpora lutea in early human pregnancy was studied. The predominant cytoplasmic element was the smooth endoplasmic reticulum. No convincing signs of degeneration of the lutein cells could be demonstrated within the first 14 weeks of pregnancy, as the mitochondria as well as the rough and smooth endoplasmic reticulum were well preserved. However, lysosomes may be slightly more numerous in older specimens and the subendothelial space increases with the age of gestation. A particular type of multilaminated structure one to five micron in diameter was observed, particularly in the earliest specimens. The possible intracellular location of steroid synthesis is discussed.


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