Tentative Study of the Pleistocene Climatic Changes and Stone-Age Culture Sequence in North-Eastern Angola

1950 ◽  
Vol 5 (17) ◽  
pp. 38
Author(s):  
C. V. R. L. ◽  
L. S. B. Leakey
Keyword(s):  
Climatic Changes ◽  
Stone Age ◽  
North Eastern ◽  
Culture Sequence

Responses of Non-volant Mammals to Late Quaternary Climatic Changes in the Wet Tropics Region of North-eastern Australia

1997 ◽  
Vol 24 (5) ◽  
pp. 493 ◽  
Author(s):  
J. W. Winter
Keyword(s):  
Late Quaternary ◽  
Temperature Tolerance ◽  
Climatic Changes ◽  
Glacial Period ◽  
Profound Influence ◽  
Eastern Australia ◽  
North Eastern ◽  
Sclerophyll Forest ◽  
Wet Tropics ◽  
Glacial Periods

It is generally recognised that the distribution of vertebrates in rainforest and wet sclerophyll forest of the Wet Tropics region of north-eastern Australia is profoundly influenced by the formation of two rainforest refugia at the height of Pleistocene glacial periods. Anomalies in the distribution of non-volant mammals indicate that other events may be equally important. In this paper, past geographical occurrence of non-volant mammals is examined by equating the mammals’ known temperature tolerance with palaeoclimatic temperature zones. It is hypothesised that dispersal and vicariant phases taking place since the most recent glacial period have had a profound influence on current patterns of distribution. A major dispersal phase of cool-adapted species occurred after the glacial period, and continuous populations were subsequently fragmented into upland isolates by expansion of warm rainforest during the late post-glacial period. These upland isolates remain substantially unchanged to the present day. Species shared either with New Guinea or south-eastern Australia arrived in the region during the most recent post-glacial period. Clarification of periods of vicariance and dispersal provides a conceptual framework for testing relative divergences of populations within and between regions.

scholarly journals Some aspects of the last glaciation in the Mazury Lake District (north-eastern Poland)

2013 ◽  
Vol 53 (1) ◽  
pp. 3-8 ◽  
Author(s):  
Katarzyna Pochocka-Szwarc
Keyword(s):  
Ice Sheet ◽  
Late Glacial ◽  
Climatic Changes ◽  
Lake District ◽  
Last Glaciation ◽  
North Eastern ◽  
Melt Water ◽  
History Of ◽  
Organic Sediments ◽  
Late Glacial And Holocene

ABSTRACT The morphology of the Mazury Lake District (north-eastern Poland) dates from 24-19 ka (main stadial of the youngest Vistulian glaciation). During this last glacial maximum (MIS 2) a belt with lacustrine basins was formed when the ice sheet retreated at the end of the Pomeranian phase. The ice-sheet retreat is morphologically also expressed by the occurrence of end moraines. The study area is situated in the Skaliska Basin, in the northern part of the Lake District (near the Polish/ Russian border), at the periphery of zone with end moraines. Originally the basin was an ice-dammed depression filled with melt water; the water flowed out into the developing Pregoła valley when the ice retreated and did no longer dam off the depression. The basin, which is surrounded by hill-shaped moraines, is filled now with Late Glacial and Holocene glaciolacustrine sediments. The organic sediments of the basin record the history of the Late Glacial and Holocene climatic changes in this region.

Copper Use, Cultural Change and Neolithization in North-Eastern Europe (c. 5500–1800 BC)

2013 ◽  
Vol 16 (3) ◽  
pp. 401-432 ◽  
Author(s):  
Kerkko Nordqvist ◽  
Vesa-Pekka Herva
Keyword(s):  
Eastern Europe ◽  
Cultural Change ◽  
Active Role ◽  
Northern Europe ◽  
Stone Age ◽  
New Materials ◽  
Material World ◽  
North Eastern ◽  
Cultural Processes ◽  
The Republic

In the context of northern Europe, copper use started early in eastern Fennoscandia (Finland and the Republic of Karelia, Russia), sometime after 4000 BC. This article explores this Stone Age copper use in eastern Fennoscandia in relation to broader cultural developments in the region between the adoption of pottery (c. 5500 BC) and the end of the Stone Age (c. 1800 BC). Stone Age copper use in north-eastern Europe has conventionally been understood in terms of technology or exchange, whereas this article suggests that the beginning of copper use was linked to more fundamental changes in the perception of, and engagement with, the material world. These changes were associated with the Neolithization of eastern Fennoscandia, which started earlier than has traditionally been thought. It is also argued that the adoption, use, and manipulation of new materials played an active role in the emergence of the Neolithic world in north-eastern Europe and beyond. Also, issues related to the Finno–Russian border dividing up eastern Fennoscandia and its effects on the study of early metal use and other prehistoric cultural processes are discussed.

Some Littoral Sites of Early Post-Glacial Times Located in North Ireland

1934 ◽  
Vol 7 (3) ◽  
pp. 366-372 ◽  
Author(s):  
J. P. T. Burchell
Keyword(s):  
Central Europe ◽  
The Other ◽  
Northern Europe ◽  
Stone Age ◽  
North East ◽  
The North ◽  
Time Periods ◽  
The One ◽  
Culture Sequence

In 1931 I described two newly-discovered stone age industries of post-glacial age situated in north-east Ireland which had been made by myself and worked in conjunction with my friend C. Blake Whelan: the one from the Lower Estuarine Clay on Islandmagee, and the other from what is probably a fluviatile gravel intercalated between the Upper and Lower Estuarine Clays in the raised-beach formation at Cushendun.The former of these cultures has its counterpart in the blade industry beneath alluvium in the Orwell Estuary at Ipswich, Suffolk; whilst the latter finds its parallel in the raised-beach at Campbeltown in Argyllshire, Scotland. Adopting the familiar culture-sequence of Central Europe I had previously designated these two groups as phases of the Magdalenian period, but, in order to avoid confusion between the time-periods and the nomenclature of continental cultures, I have decided to base my chronology of the north Irish industries upon the natural changes of climate revealed by a study of the deposits in which they were found. The industries to be described below were contemporary with the Mesolithic Forest Cultures distinguished by Childe and Clark over the plain of northern Europe.

scholarly journals THE DYNAMIC OF WATER RESOURCES IN NORTH-EASTERN MOROCCO BETWEEN REALITY AND EFFECTS OF CLIMATE CHANGE : CASE OF THE TARIFA PLAIN

2021 ◽  
Vol 03 (06) ◽  
pp. 38-47
Author(s):  
Mustapha BENASQUAR ◽  
Ghazi ABDELKHALEK
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
Agricultural Production ◽  
Agricultural Sector ◽  
Climatic Changes ◽  
Global System ◽  
Natural Factors ◽  
North Eastern ◽  
Eastern Morocco ◽  
Precipitation And Temperature

The issue of climate change today has become one of the issues that receive increasing attention on the part of the global system, due to its disastrous effects at all levels, and this is due to human and natural factors, including the southern bank of the Mediterranean which has not been excluded from, especially the Tarifa Plain in the far northeast of Morocco, which is one of the most important irrigated areas in the country due to its great contribution to agricultural production and its reliance on achieving economic and social development in the region. However, its climate during the last six decades has witnessed clear variations in the rates of precipitation and temperature, whether annual or monthly, or even seasonal and daily. This increases the severity of the climatic drought, which in turn affects water resources. Therefore, it is imperative that great efforts must be made to limit the effects of these changes in light of the excessive depletion of water in the agricultural sector. Through this intervention, we aim to highlight the climatic changes that occurred on the Tarifa Plain, and their repercussions on its water resources, and how to adapt these changes to achieving sustainable development for the studied area.

scholarly journals Molluscan and sedimentological sequences of the late Quaternary deposits of Morsott region (NE Algeria) and their paleoenvironmental implication

2018 ◽  
Vol 189 (4-6) ◽  
pp. 17
Author(s):  
Smaine Chellat ◽  
Lotfi Toubal ◽  
Abderrezak Djerrab ◽  
Ahcene Bourefis ◽  
Belhadj Hamdi-Aissa ◽  
...  
Keyword(s):  
Late Quaternary ◽  
Climatic Changes ◽  
Quaternary Deposits ◽  
Quaternary Sequences ◽  
Fluvial Dynamics ◽  
North Eastern ◽  
Molluscan Fauna ◽  
Eastern Algeria ◽  
Insight Into ◽  
Semi Arid

The late Quaternary sequences of north-eastern Algeria composed of alternating dark and light layers, which are rich in molluscan fauna, could correspond to synchronous environmental phases. The facies variations of the Morsott Region deposits were systematically sampled as part of a sedimentological and malacological study in order to establish a palaeoenvironmental and climatic reconstruction of the late Quaternary. The alternation of sandy clayey silts levels, which contain abundant molluscan hygrophilous organisms, indicates an isostasis cycle followed, at the top, by a succession of rhexistasis and biostasis cycles. The molluscan record shows a dominant succession of xerophilous organisms in relation to the hygrophilous organisms. The faunistic richness in the fine levels is linked to sub-humid periods where the region has suffered numerous floods. The reduction in the number of species in the coarse levels comes is likely due to desiccation when the climate was semi-arid. This study is new in Algeria and will provide an insight into climatic changes. Further research will be required in order to understand the fluvial dynamics during the Quaternary.

scholarly journals Tracing the Materiality of Feathers in Stone Age North-Eastern Europe

2020 ◽  
pp. 23-46
Author(s):  
Kristiina Mannermaa ◽  
Tuija Kirkinen
Keyword(s):  
Eastern Europe ◽  
Direct Evidence ◽  
Microscopic Analysis ◽  
Soil Samples ◽  
Archaeological Record ◽  
Stone Age ◽  
North Eastern ◽  
The World ◽  
Traditional Societies ◽  
Mesolithic Period

The use of feathers in ritual costumes and everyday clothing is well described in ethnographic sources throughout the world. From the same sources we know that bird wings and feathers were loaded with meaning in traditional societies worldwide. However, direct archaeological evidence of prehistoric use of feathers is still extremely scarce. Hence, feathers belong to the ‘missing majority’: items that are absent from the archaeological record but which we can assume to have been of importance. Here we present microscopic analysis of soil samples from hunter-gatherer burial contexts which reveal the first direct evidence of the use of feathers in the Mesolithic period of north-eastern Europe.

scholarly journals Seascape Genomics of the Sugar Kelp Saccharina latissima Along the North Eastern Atlantic Latitudinal Gradient

2020 ◽  
Author(s):  
Jaromir Guzinski ◽  
Paolo Ruggeri ◽  
Marion Ballenghien ◽  
Stephane Mauger ◽  
Bertrand Jacquemin ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Climatic Changes ◽  
Statistical Correlation ◽  
Limiting Factors ◽  
Saccharina Latissima ◽  
Marker Allele ◽  
The North ◽  
Distribution Ranges ◽  
North Eastern ◽  
Microsatellite Alleles

Temperature is one of the most important range-limiting factors for many seaweeds. Driven by the recent climatic changes, rapid northward shifts of species’ distribution ranges can potentially modify the phylogeographic signature of Last Glacial Maximum such as increased genetic diversity at lower latitudes. To explore this question in detail in the kelp Saccharina latissima, we used microsatellites and double digest RAD-sequencing derived SNPs on S. latissima sporophytes sampled within 11 sites spanning the entire European Atlantic latitudinal range of this species. In addition, we checked for statistical correlation between genetic marker allele frequencies and three environmental proxies (sea surface temperature, salinity, and water turbidity). Our findings revealed that genetic diversity was significantly higher for the northern localities compared to the southern ones in contrast to the expected phylogeographic pattern. This suggests that the southernmost S. latissima populations are negatively affected by the recent climatic changes but also that the recolonization of S. latissima range following the LGM may have occurred from northerly refugia. Seven SNPs and 12 microsatellite alleles were found to be significantly associated with at least one of the three environmental variables. We discuss the potential adaptive functions of the genes associated with the outlier markers and the importance of these markers for successful conservation and aquaculture strategies for S. latissima in this age of rapid global change.

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