Author: James H. Thorp Publisher: Elsevier ISBN: 0080530672 Category : Science Languages : en Pages : 1073
Book Description
The First Edition of Ecology and Classification of North American Freshwater Invertebrates has been immensely popular with students and researchers interested in freshwater biology and ecology, limnology, environmental science, invertebrate zoology, and related fields. The First Edition has been widely used as a textbook and this Second Edition should continue to serve students in advanced classes. The Second Edition features expanded and updated chapters, especially with respect to the cited references and the classification of North American freshwater invertebrates. New chapters or substantially revised chapters include those on freshwater ecosystems, snails, aquatic spiders, aquatic insects, and crustaceans. - Most up-to-date and informative text of its kind - Written by experts in the ecology of various invertebrate groups, coverage emphasizes ecological information within a current taxonomic framework - Each chapter contains both morphological and taxonomic information, including keys to North American taxa (usually to the generic level) as well as bibliographic information and a list of further readings - The text is geared toward researchers and advanced undergraduate and graduate students
Author: Douglas Grant Smith Publisher: John Wiley & Sons ISBN: 9780471358374 Category : Science Languages : en Pages : 672
Book Description
Need-to-know information on the classification and identificationof aquatic invertebrates This Fourth Edition of the standard reference used by generationsof professionals and students is the source for authoritativeinformation on the natural history, ecology, and taxonomy offree-living American freshwater invertebrates. Completely revisedand updated, this professional field guide features a wealth of newknowledge on invertebrate animal phyla covered in the previousedition as well as fully modified sections on the preparation ofmaterials. Other important features of Pennak's Freshwater Invertebrates ofthe United States, Fourth Edition include: * Current taxonomical arrangements of all freshwater invertebrateanimals, excluding insects * Improved graphical treatments and keys to identification, severalprovided by specialists * Photographs and color plates to aid identification * More than 300 line drawings, many new to this edition * Taxonomic keys carried uniformly to genus level in all but twophyla, with frequent references to species Pennak's Freshwater Invertebrates of the United States, FourthEdition is an indispensable resource for biologists, ecologists,graduate students, and anyone who needs to acquire the thoroughknowledge of aquatic invertebrates that is essential tounderstanding the community structure of freshwater environments.
Author: Jonathan A. Holmes Publisher: American Geophysical Union ISBN: Category : Science Languages : en Pages : 332
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: James H. Thorp
Author: William J. Clark
Author: 
Author: United States. Department of the Interior. Library
Author: 
Author: Tennessee Academy of Science
Author: 
Author: Douglas Grant Smith
Author: John William Neale
Author: Jonathan A. Holmes