Endodontoid Land Snails from Pacific Islands PDF Download

Author: Alan Solem
Publisher:
ISBN:
Category : Charopidae
Languages : en
Pages : 360

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: Robert Cowie
Publisher: Lulu.com
ISBN: 1387155334
Category : Reference
Languages : en
Pages : 82

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The islands of the Samoan archipelago lie about 14 degrees south of the equator in the central Pacific Ocean. Politically, they are divided into two groups: Samoa (formerly Western Samoa), an indepedent state and American Samoa, a territory of the USA. The islands have been formed as a result of complex volcanic activity; they are geologically young. While many of the plants and birds of the Samoan Islands are found elsewhere in the Pacific, many of the snail species are found nowhere else on Earth. This guide is intended to permit identification of mos of the terrestrial snails, and slugs of the Samoan Islands. It is intended to be accessible to the amateur naturalist but also to provide the experienced scientist with a compact resource of information. The guide covers both the native species and the non-native, introduced species, which are generall more frequently encountered, especially at low elevations and in habits disturbed by human activities.

Author: Alan Solem
Publisher: BRILL
ISBN: 9004631968
Category : Science
Languages : en
Pages : 299

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Author: Alan Solem
Publisher:
ISBN:
Category : Charopidae
Languages : en
Pages : 534

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Author: John Stanisic
Publisher: CSIRO PUBLISHING
ISBN: 1486313531
Category : Nature
Languages : en
Pages : 185

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Australia's native land snails are an often-overlooked invertebrate group that forms a significant part of terrestrial biodiversity, with an estimated 2500 species present in Australia today. A Guide to Land Snails of Australia is an overview of Australia's native and introduced land snail faunas, offering a greater understanding of their role in the natural environment. The book presents clear diagnostic features of live snails and their shells, and is richly illustrated with a broad range of Australia's native snail, semi-slug and slug species. Comprehensive coverage is also included of the many exotic species introduced to Australia. In a unique bioregional approach, the reader is taken on a trek through some of Australia's spectacular regional landscapes, highlighting their endemic and special snail faunas. This section is supplemented with key localities where species can be found.

Author: Saber Saleuddin
Publisher: CRC Press
ISBN: 135179924X
Category : Nature
Languages : en
Pages : 521

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Physiology of Molluscs: A Collection of Selected Reviews is an informative two-volume sent that brings together some of the most important recent and unique developments in molluscan physiology. Volume Two includes reviews on the neural mechanisms of learning, reproductive behavior, responses to environmental stress and hormones, and neurotransmitters. With the rapid development of cutting-edge proteomic, molecular biological, and cellular imaging techniques, our understanding of molluscan physiology, specifically in the areas of neurobiology, reproductive biology, and shell formation, has increased exponentially over the last several years. With contributions from some of the world's leading experts in the field of molluscan physiology, this valuable two-volume set fills this void and will serve as an important resource for researchers, professors, and students.

Author: David W. Steadman
Publisher: University of Chicago Press
ISBN: 0226771423
Category : Science
Languages : en
Pages : 609

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Author: E. R. Trueman
Publisher: Academic Press
ISBN: 1483289362
Category : Science
Languages : en
Pages : 512

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FROM THE GENERAL PREFACE: This multivolume work, The Mollusca, had its origins in the mid 1960s with the publication of two volumes entitled Physiology of Mollusca and edited by Wilbur and Yonge. In those volumes, 27 authors collaborated to summarize the status of the conventional topics of physiology as well as biochemistry, reproduction and development, and ecology. Within the past two decades, there has been a remarkable burgeoning of molluscan research generally and with it the development of new fields of investigation. During the same period, several excellent books on molluscs have appeared. However, they do not provide adequate information on the many recent advances or give the breadth of perspective of current knowledge of the phylum. Clearly, there was need for a larger work with a comprehensive treatment of major areas of molluscan research. The Mollusca, as a series of 12 volumes, attempts to fulfill this objective. Even here, practical considerations have meant that certain aspects of molluscan research have not been included.Each major area is treated by several authors, each reviewing his or her special field. The areas are structure and function, metabolic biochemistry, molecular biomechanics, environmental biochemistry, physiology, ecology, reproduction and development, neurobiology and behavior, and evolution. Throughout, the authors have given emphasis to recent advances and present status of molluscan biology. In so doing, directions of future research have become evident.The Mollusca is intended to serve several disciplines--zoology, biochemistry, physiology, and paleontology. It will prove useful to researchers and to all others with interests in molluscs.FROM THE PREFACE TO VOLUME 10: Recent events that have stimulated a great surge of investigation into the evolution of the Mollusca include the discovery of well-preserved microscopic molluscs at most levels of the Cambrian on five continents, the development of electron microscopy, the need to examine competing models of the early history of the phylum, new interest in interstitial fauna of littoral and near-littoral sands, and significant advances in our knowledge of shell ontogeny, construction, and evolution. It is timely that an up-to-date synthesis involving both paleontologists and zoologists should be published after a decade of such activity and advance when many of the long-held views on molluscan phylogeny have been overturned.This book deals with all molluscan classes except the Cephalopoda, which will be treated in Volume 12. The two books together provide an up-to-date introduction to the evolution of the Mollusca with adequate references to guide further work. They will be invaluable to specialists on molluscs, postgraduate research workers, and undergraduates with particular interests in this phylum. Authorities on the various molluscan groups were asked to express their views and to treat the subject as they wished; the book provides a valuable record of their opinions at this time.While the main groups are broadly and fully treated, focus has been narrowed toward a few selected minor groups of particular interest such as limpets, land snails, and the Anomalodesmata, in which recent work has been particularly significant.Because recent years have seen major revisions in classificatory terms, the editors have provided an outline classification into which the chapter topics fit. A New Synthesis of Recent Findings...Volume 10 examines important recent findings on the evolution of molluscs resulting from important new evidence in the fossil record. Paleontologists and zoologists present a synthetic treatment of all classes of the Mollusca (except the Cephalopods, covered in Volume 12). Topics include:molluscan origin and early evolutionthe evolution of Gastropoda and Bivalviaassessment of limpets, land snails, and the Anomalodesmata.

Author: Patrick D. Nunn
Publisher: University of Hawaii Press
ISBN: 0824832191
Category : History
Languages : en
Pages : 288

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Islands—as well as entire continents—are reputed to have disappeared in many parts of the world. Yet there is little information on this subject concerning its largest ocean, the Pacific. Over the years, geologists have amassed data that point to the undeniable fact of islands having disappeared in the Pacific, a phenomenon that the oral traditions of many groups of Pacific Islanders also highlight. There are even a few instances where fragments of Pacific continents have disappeared, becoming hidden from view rather than being submerged. In this scientifically rigorous yet readily comprehensible account of the fascinating subject of vanished islands and hidden continents in the Pacific, the author ranges far and wide, from explanations of the region’s ancient history to the meanings of island myths. Using both original and up-to-date information, he shows that there is real value in bringing together myths and the geological understanding of land movements. A description of the Pacific Basin and the "ups and downs" of the land within its vast ocean is followed by chapters explaining how—long before humans arrived in this part of the world—islands and continents that no longer exist were once present. A succinct account is given of human settlement of the region and the establishment of cultural contexts for the observation of occasional catastrophic earth-surface changes and their encryption in folklore. The author also addresses the persistent myths of a "sunken continent" in the Pacific, which became widespread after European arrival and were subsequently incorporated into new age and pseudoscience explanations of our planet and its inhabitants. Finally, he presents original data and research on island disappearances witnessed by humans, recorded in oral and written traditions, and judged by geoscience to be authentic. Examples are drawn from throughout the Pacific, showing that not only have islands collapsed, and even vanished, within the past few hundred years, but that they are also liable to do so in the future.