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Author: Louis S. Kornicker
Publisher:
ISBN:
Category : Myodocopida
Languages : en
Pages : 64
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Book Description
Author: Louis S. Kornicker
Publisher:
ISBN:
Category : Myodocopida
Languages : en
Pages : 64
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Book Description
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1154
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Book Description
Author: Smithsonian Institution
Publisher:
ISBN:
Category : Zoology
Languages : en
Pages : 180
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Book Description
Author: Louis S. Kornicker
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 64
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Book Description
Author: Louis S. Kornicker
Publisher:
ISBN:
Category : Halocyprida
Languages : en
Pages : 108
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Book Description
Author:
Publisher:
ISBN:
Category : Biology
Languages : en
Pages : 450
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Book Description
Author: Jonathan A. Holmes
Publisher: American Geophysical Union
ISBN:
Category : Science
Languages : en
Pages : 332
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Book Description
Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 131. Scientists generally acknowledge that the reconstruction of past environments requires the use of multiple indicators or proxies. Biological remains, which figure prominently in many studies, offer different values for different purposes. Whereas scientists frequently use and well understand some biological proxies, for example, the foraminifers in marine environments and pollen grains in terrestrial settings, other biological proxies are underutilised. In this book, we focus on one such indicator of Quaternary paleoenvironmental phenomena: the ostracods or, as they are sometimes known, ostracodes. Ostracods are small aquatic crustaceans that secrete shells or valves made of calcite, which are often preserved in Quaternary sediments. In addition to providing a complementary line of evidence in multi-proxy investigations, ostracods have a number of specific advantages as biological proxies. First, they are sensitive to a range of ecological variables, such as habitat type and water composition. Second, their shells can be used in geochemical and isotope analyses and, because shell secretion is a rapid process, the results provide a "snapshot" of water conditions. Third, ostracods are often preserved in environments where other important biological proxies are not; in alkaline environments, for example, ostracods are well preserved, yet diatoms tend to be dissolved. Thus, we seek to encourage Quaternary scientists working both in marine and non-marine environments to make more routine use of ostracods in their work.
Author:
Publisher:
ISBN:
Category : Bibliographical literature
Languages : en
Pages : 1096
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Book Description
Author:
Publisher:
ISBN:
Category : Animals
Languages : en
Pages : 1126
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Book Description
Author: Ana Ramos
Publisher: Springer
ISBN: 9402410236
Category : Science
Languages : en
Pages : 692
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Book Description
This book compiles the main findings of the multidisciplinary long-term research program developed in the continental margin of one of the more productive and unknown areas of the world oceans, Northwest Africa. The more than 25,000 preserved fishes and benthic invertebrates and quantitative data collected in 342 trawling stations, the 267 oceanographic profiles, the 211 sediment samples and the 28,122 km2 prospected by multi˗beam echo sounding allowed to obtain an overview of the amazing biodiversity of the demersal and benthic fauna inhabiting soft- and hard-bottom habitats, as well as the fascinating geomorphology and oceanography, hidden in the Mauritanian slope.
