Download The Great Barrier Reef: An Environmental History (Earthscan by Ben Daley PDF

By Ben Daley

The nice Barrier Reef is found alongside the coast of Queensland in north-east Australia and is the world's biggest coral reef surroundings. targeted a global historical past sector, it's been topic to expanding pressures from tourism, fishing, pollutants and weather swap, and is now safe as a marine park. This e-book presents an unique account of the environmental background of the good Barrier Reef, in keeping with broad archival and oral heritage learn.

It records and explains the most human affects at the nice Barrier Reef because eu payment within the sector, focusing quite at the century from 1860 to 1960 which has no longer formerly been absolutely documented, but which was once a interval of extraordinary exploitation of the environment and its assets. The publication describes the most adjustments in coral reefs, islands and marine flora and fauna that resulted from these affects.

In more moderen many years, human affects at the nice Barrier Reef have unfold, speeded up and intensified, with implications for present administration and conservation practices. there's now greater clinical realizing of the threats confronted by way of the atmosphere. but those smooth demanding situations happen opposed to a history of historic degrees of exploitation that's little-known, and that has diminished the ecosystem's resilience. the writer presents a compelling narrative of the way one of many world's so much iconic and weak ecosystems has been exploited and degraded, but additionally how a few early conservation practices emerged.

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Extra resources for The Great Barrier Reef: An Environmental History (Earthscan Oceans)

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Ago and increased s 21 The Fossil Record, Part I in complexity and variety until the latest Pre-Cambrian times when metazoan faunas appeared. The criteria for the recognition of Pre-Cambrian fossils, or trace-fossils, are diverse; the rigorous position restated by Cloud (1965) is perhaps less in favour today " . . ". (A) BIOGENIC M A T E R I A L S IN A N C I E N T ROCKS The search in rocks and fossils of all ages for substances which were derived from, or contributed to, life processes has recently been proceeding at an accelerating rate.

Volcanoes and world climate. Scient. Am. April, 3-5. WHITTARD,W. F. 1953. The enigma of the earliest fossils. Proc. Bristol Nat. Soc. 25, 289-304. WILSON, A. E. 1957. Life in the Proterozoic. In GILL, J. E. ) The Proterozoic in Canada. Special Publication no. 2, Royal Society of Canada, pp. 18-27. Manuscript submitted June 1966. J. w . S. Department of Geology, The University, Bristol 8. 35 The significance of certain trace-fossil ranges ROLAND COLDRIN6 Tgnc~-fossils (ichnofossils; tracks, trails and burrows) are an important constituent of the fossil record, and although their stratigraphical value is limited, they provide a valuable clue to the environments colonized by different groups of organisms and an indication of the various activity patterns formed by benthonic animals.

Y. (F) TRACE-FOSSILS Pre-Cambrian trace-fossils, resulting from the activities of organisms, seem to be found in rocks deposited in the later part of Pre-Cambrian times and most frequently in strata which are stratigraphically not far below the base of the Cambrian System (however that may be defined). Further critical study of their palaeontological and stratigraphical significance is required but the impression certainly arises from a general view of the record that there was a striking increase in tracks, trails and other traces of fossils just before the Cambrian period, that these are of metazoan benthonic life, and that earlier Pre-Cambrian life was planktonic (Seilacher 1956).

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