971 resultados para Ships -- Great Lakes (North America) -- History.
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Over recent decades, palaeolimnological records from remote sites have provided convincing evidence for the onset and development of several facets of global environmental change. Remote lakes, defined here as those occurring in high latitude or high altitude regions, have the advantage of not being overprinted by local anthropogenic processes. As such, many of these sites record broad-scale environmental changes, frequently driven by regime shifts in the Earth system. Here, we review a selection of studies from North America and Europe and discuss their broader implications. The history of investigation has evolved synchronously with the scope and awareness of environmental problems. An initial focus on acid deposition switched to metal and other types of pollutants, then climate change and eventually to atmospheric deposition-fertilising effects. However, none of these topics is independent of the other, and all of them affect ecosystem function and biodiversity in profound ways. Currently, remote lake palaeolimnology is developing unique datasets for each region investigated that benchmark current trends with respect to past, purely natural variability in lake systems. Fostering conceptual and methodological bridges with other environmental disciplines will upturn contribution of remote lake palaeolimnology in solving existing and emerging questions in global change science and planetary stewardship.
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n.s. no.26(1996)
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n.s. no.4(1981)
[ Portolan chart of eastern North and Central America and northern South America] : manuscript, 1659
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Autograph (signed) map. Includes inscription: Made by Nicholas Comberford dwelling neare to the west end of the school house at the Sign of the Platt in Redcliffe. Anno 1659.
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Written in an unidentified hand, signed by Barkstead.
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A campaign against Apaches [1885-86] (Captain Maus' narrative): p. 450-471.
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A reprint, with additional chapters, of Custer's "My life on the plains."
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Mode of access: Internet.
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The ancient Cherokees.--Cherokee wars.--The heroes of Walpole.--Memoirs of a northern trader.--Massacre of Michilimacinac.--Traits of the Tuskaroras.--Tuskarora war.--Adventures of Long.--The civilized cannibal.--Captivity of Mrs. Rowlandson.--Settlement of Kentucky.--The conspiracy of the Creeks.--Christian Indians.
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"Pre-Columbian explorations": v. 1, p. 59-132.
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Mode of access: Internet.
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"References" at end of chapters.
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Narrative closes in the midst of the war of 1812.
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The complete work was issued as a single volume (xxxix, 530p.) December 1898.
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This paper discusses some aspects of hunter-gatherer spatial organization in southern South Patagonia, in later times to 10,000 cal yr BP. Various methods of spatial analysis, elaborated with a Geographic Information System (GIS) were applied to the distributional pattern of archaeological sites with radiocarbon dates. The shift in the distributional pattern of chronological information was assessed in conjunction with other lines of evidence within a biogeographic framework. Accordingly, the varying degrees of occupation and integration of coastal and interior spaces in human spatial organization are explained in association with the adaptive strategies hunter-gatherers have used over time. Both are part of the same human response to changes in risk and uncertainty variability in the region in terms of resource availability and environmental dynamics.