994 resultados para Wordsworth, Christopher, 1774-1846.
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"Works illustrative of Greek geography": p. [vii]-x.
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Mode of access: Internet.
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Vols. 2,3 and 4: 2d ed.
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Includes bibliographical references.
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Includes bibliographical references.
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Mode of access: Internet.
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Includes index.
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Largely written by J.M.J. Fletcher, with a chapter on "The Library, and the use of Sarum," by Christopher Wordsworth.
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In the Arctic the currently observed rising air temperature results in more frequent calving of icebergs. The latter are derived from tidewater glaciers. Arctic macrozoobenthic soft-sediment communities are considerably disturbed by direct hits and sediment reallocation caused by iceberg scouring. With the aim to describe the primary succession of macrozoobenthic communities following these events, scientific divers installed 28 terracotta containers in the soft-sediment off Brandal (Kongsfjorden, Svalbard, Norway) at 20 m water depth in 2002. The containers were filled with a bentonite-sand-mixture resembling the natural sediment. Samples were taken annually between 2003 and 2007. A shift from pioneering species (e.g. Cumacea: Lamprops fuscatus) towards more specialized taxa, as well as from surface-detritivores towards subsurface-detritivores was observed. This is typical for an ecological succession following the facilitation and inhibition succession model. Similarity between experimental and non-manipulated communities from 2003 was significantly highest after three years of succession. In the following years similarity decreased, probably due to elevated temperatures, which prevented the fjord-system from freezing. Some organisms numerically important in the non-manipulated community (e.g., the polychaete Dipolydora quadrilobata) did not colonies the substrate during the experiment. This suggests that the community had not fully matured within the first three years. Later, the settlement was probably impeded by consequences of warming temperatures. This demonstrates the long-lasting effects of severe disturbances on Arctic macrozoobenthic communities. Furthermore, environmental changes, such as rising temperatures coupled with enhanced food availability due to an increasing frequency of ice-free days per year, may have a stronger effect on succession than exposure time.
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Contains entries on a variety of topics arranged alphabetically and compiled by several individuals. Includes an index at the end.
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Mode of access: Internet.
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"Selections from this diary were first published under the title of ʻA British officer in Boston in 1775̓, in the Atlantic monthly for April and May, 1877. The identity of the writer was undetermined."--Pref.
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The entire diary extends from January, 1774, to September, 1781. The "Passages" here published cover the period January 9, 1774-December 31, 1776. An edition issued in 1849 included the years 1774-1777 and in 1877 appeared Extracts from the diary of Christopher Marshall ... 1774-1781.
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Mode of access: Internet.