The nature and timing of landscape change at Cerro Benítez, Última Esperanza, southern Patagonia (52°S): New insights into the history of megafaunal extinctions and human occupation

Author(s):  
Robert D. McCulloch ◽  
Claudia A. Mansilla ◽  
Fabiana Martin ◽  
Luis Borrero ◽  
Richard A. Staff ◽  
...  
1998 ◽  
Vol 48 ◽  
pp. 69-86 ◽  
Author(s):  
W. J. Eastwood ◽  
N. Roberts ◽  
H. F. Lamb

The mountains of the Eastern Mediterranean have a long history of human occupation and exploitation of the natural environment (Grenon, Batisse 1989; McNeil 1992). Whilst the reconstruction of vegetation and human-induced landscape change is primarily based upon pollen analysis and other palaeoecological methods, the history of human occupation relies heavily upon archaeology, including field survey information and excavation reports. Both palaeoecology and archaeology are supplemented by historical accounts, especially for later periods, and when these data sources are combined they have the potential to provide a much fuller picture of settlement and landscape change than the reliance on a single source (Wagstaff 1985). There are, however, problems and limitations associated with each of the different data sources.


2016 ◽  
Vol 3 (2) ◽  
pp. 150250 ◽  
Author(s):  
Claudio Ottoni ◽  
Rita Rasteiro ◽  
Rinse Willet ◽  
Johan Claeys ◽  
Peter Talloen ◽  
...  

More than two decades of archaeological research at the site of Sagalassos, in southwest Turkey, resulted in the study of the former urban settlement in all its features. Originally settled in late Classical/early Hellenistic times, possibly from the later fifth century BCE onwards, the city of Sagalassos and its surrounding territory saw empires come and go. The Plague of Justinian in the sixth century CE, which is considered to have caused the death of up to a third of the population in Anatolia, and an earthquake in the seventh century CE, which is attested to have devastated many monuments in the city, may have severely affected the contemporary Sagalassos community. Human occupation continued, however, and Byzantine Sagalassos was eventually abandoned around 1200 CE. In order to investigate whether these historical events resulted in demographic changes across time, we compared the mitochondrial DNA variation of two population samples from Sagalassos (Roman and Middle Byzantine) and a modern sample from the nearby town of Ağlasun. Our analyses revealed no genetic discontinuity across two millennia in the region and Bayesian coalescence-based simulations indicated that a major population decline in the area coincided with the final abandonment of Sagalassos, rather than with the Plague of Justinian or the mentioned earthquake.


2011 ◽  
Vol 83 (4) ◽  
pp. 1345-1358 ◽  
Author(s):  
Gisele R. Winck ◽  
Tiago G. Dos Santos ◽  
Sonia Z. Cechin

The increasing human occupation of natural environments is one of the greatest threats to biodiversity. To mitigate the negative anthropogenic effects, it is necessary to understand the characteristics of natural populations and the natural history of species. A study was conducted with an assemblage of lizards from a disturbed area of the Pampa biome, from February 2001 to January 2004. The assemblage showed a unimodal seasonal pattern, with the recruitment period occurring during the warmer months. The captures were seasonal for two of the three monitored years, and concentrated within warmer months. The minimum temperature explained the number of catches for the assemblage as a whole. However, when the species were analyzed individually, the temperature only explained the seasonal occurrence of Teius oculatus. The abundance of species was significantly different in the third year of study for Cercosaura schreibersii and Ophiodes striatus. This latter species was no longer registered in the study area from May 2003 until the end of the study. Therefore, O. striatus may be more sensitive to environmental changes, considering the events of change in vegetation during the study. With frequent and increasing environmental disturbances, it is necessary to take conservation measures and encourage the increase of knowledge on Pampean lizards.


Polar Record ◽  
1950 ◽  
Vol 5 (40) ◽  
pp. 560-564
Author(s):  
E. W. H. Christie

There have been few more controversial figures in the history of exploration than Amerigo Vespucci, and it is therefore necessary to be extremely cautious in deciding whether he did, or did not, discover the island of South Georgia in the year 1501. Humboldt and Mill believed that he might have done so, but thought that, on the whole, his most likely landfall was southern Patagonia or Tierra del Fuego. Matthews, who devoted considerable attention to working out distances and directions, came to the conclusion that Vespucci very probably arrived at South Georgia after leaving the coast of Brazil and sailing south-westwards, while the Australian map of Antarctica, published in Canberra in 1939, and the Antarctic Pilot (London, second edition, 1948) have respectively described this achievement as a probability and as a possibility.


The Holocene ◽  
2003 ◽  
Vol 13 (4) ◽  
pp. 581-591 ◽  
Author(s):  
Vera Markgraf ◽  
J. Platt Bradbury ◽  
Antje Schwalb ◽  
Stephen J. Burns ◽  
Charles Stern ◽  
...  

Author(s):  
Keith M. Prufer ◽  
Douglas J. Kennett

In Chapter 2, Keith Prufer and Douglas J. Kennett focus on the long history of human occupation in southern Belize, from initial colonization at the end of the Pleistocene to the present. First occupied by Paleoindians, the landscape of southern Belize has seen 10 millennia of cultural modifications. The authors, drawing on more than two decades of archaeological research, discuss why studying the long historical trajectories of settlements within a region can provide data about how humans adapt and reorganize over long periods of time and insights into underlying processes of resilience and reorganization in response to climatic, demographic, and social pressures. The chapter draws on climate reconstruction data to look at Holocene adaptations to a changing landscape.


The Holocene ◽  
2020 ◽  
Vol 30 (6) ◽  
pp. 888-904
Author(s):  
Emilie Gouriveau ◽  
Pascale Ruffaldi ◽  
Loïc Duchamp ◽  
Vincent Robin ◽  
Annik Schnitzler ◽  
...  

Palynological data from the Northern Vosges Mountains (NVM) are very rare, unlike for the Southern and Central Vosges Mountains, where the past vegetation history is relatively well known. As a consequence, the beginning of human activities has never been clearly identified and dated in the NVM. In order to reconstruct the evolution of vegetation in this region, multiproxy studies (pollen, non-pollen palynomorphs, sedimentological and geochemical analyses) were conducted in two peatlands. Overall, the results, extending from about 9500 cal. BP to recent times, show a classical vegetation succession with local particularities resulting from human activities. In the La Horn peatland, a strong human impact related to pastoralism is attested from the late Bronze Age onwards. The second phase of human occupation, mainly characterized by crop cultures, begins during the Hallstatt period. The geochemical results (x-ray fluorescence) also highlight the presence of metallic elements, which, combined with significant quantities of carbonized particles, point to potential metal working. In the Kobert-Haut peatland, human occupation began much later (1500 cal. BP), but lasted from the Gallo-Roman period to the beginning of the Modern Period. Unlike for the vegetation history of the rest of the Vosges, Pinus remains a prevailing taxon throughout the Holocene in the NVM. Another particularity is the early establishment of Picea, long before the 18th to 19th century plantations.


Radiocarbon ◽  
1994 ◽  
Vol 36 (1) ◽  
pp. 37-45 ◽  
Author(s):  
Weijian Zhou ◽  
Zhisheng An ◽  
M. J. Head

Loess deposition within the Loess Plateau of China records the history of environmental change over the last 2.5 Myr. Loess-paleosol sequences of the last 10 ka, which have preserved information of global climate change, relate closely to human occupation of the area. Hence, studies of the deposition and development of Holocene loess are significant for studying environmental change and problems associated with engineering geology. We present here stratigraphic relations among four profiles from the south, west and center of the Loess Plateau. On the basis of 14C radiometric and AMS dates of organic material extracted from the paleosols, together with magnetic susceptibility measurements down each profile, we discuss Holocene stratigraphic divisions within the Loess Plateau, and suggest that the Holocene optimum, characterized by paleosol complexes, occurred between 10 and 5 ka bp. From 5 ka BP to the present, neoglacial activity is characterized by recently deposited loess.


Antiquity ◽  
2004 ◽  
Vol 78 (301) ◽  
pp. 579-593 ◽  
Author(s):  
E. Huysecom ◽  
S. Ozainne ◽  
F. Raeli ◽  
A. Ballouche ◽  
M. Rasse ◽  
...  

The area of Ounjougou consists of a series of gullies cut through Upper Pleistocene and Holocene formations on the Dogon Plateau in the Sahel at the south edge of the Sahara Desert. Here the authors have chronicled a stratified sequence of human occupation from the tenth to the second millennium BC, recording natural and anthropogenic strata containing artefacts and micro- and macro- palaeoecological remains, mostly in an excellent state of preservation. They present a first synthesis of the archaeological and environmental sequence for the Holocene period, define five main occupation phases for Ounjougou, and attempt to place them within the context of West African prehistory.


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