1000 resultados para Binnie-Clark, Georgina, 1871-1955.
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Advertising matter: p. 73-80.
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Mode of access: Internet.
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Mode of access: Internet.
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Chapter by Watson and Hess was previously issued as Bull. 530-P, U.S. Geological Survey, 1912; chapter by Stose was previously issued as Bull. 530, pt. 1, U.S. Geological Survey, 1911.
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Mode of access: Internet.
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Mode of access: Internet.
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Front row left to right: George Dern, Roosevelt, Manuel Quezon. Back row left toright: Murphy, Cordell Hull and others
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Preceded by: Briefe über einen deutschen roman: Julius Rodenberg an Enrica von Handel-Mazzetti; p. [3]-56.
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Mode of access: Internet.
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Thesis (doctoral)--
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On cover: From G. K. Hall & Co. with all good wishes at Christmas MCMLXVIII.
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Mode of access: Internet.
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Ascarophis brasiliensis recovered from the stomach of Trachinotus carolinus (L. 1766), is proposed as a new species and Procamallanus (Spirocamallanus) pereirai Annereaux, 1946 is redescribed from a new host: Paralonchurus brasiliensis (Steind., 1875). A. brasiliensis is more closely related to A. crassicolis Dollfus & Campana-Rouget, 1956, from which it differs mainly by the absence of cervical cuticular expansion and size of the eggs. The new species is also compared to A. cooperi johnston & Mawson, 1945 and A. girellae (Yamaguti, 1935) Campana-rouget, 1955. The validity of the proposed species is discussed.
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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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[Alumnus caption: "A Reunion of the Old Guard The Coach with Three Old Pupils, Donald W. Green, '11; M.E. Crumpacker, '09 W. D. Clark, '07]