Download or read book Annelida Basal Groups and Pleistoannelida Sedentaria I written by Günter Purschke and published by Walter de Gruyter GmbH & Co KG. This book was released on 2019-03-18 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the first in a series of 4 volumes in the Handbook of Zoology series about morphology, anatomy, reproduction, development, ecology, phylogeny and systematics of Annelida. This first volume covers members of the so-called basal radiation and the first part of Sedentaria. It is supplemented by chapters on the history of annelid research, their fossil record, and an introduction to the phylogeny of annelids and their position in the tree of life. In the latter chapter the history of their systematic is reviewed giving an almost complete picture of systematic-scientific progress especially in the past years which changed our view on annelid phylogeny dramatically. The most basal annelids, lately united as Palaeoannelida, represent two families of aberrant polychaetes formerly often suggested to be highly derived which now give us a fresh look on how the ancestral annelid may have looked like. These lack certain key characters such as nuchal organs and possess rather simple nervous systems which now likely represent primitive character states. In this basal radiation the first taxon of apparently unsegmented and achaetigerous animals is positioned, the Sipuncula. Most likely another group of platyhelminth-like and unsegmented and even chaeta-lees annelids, Lobatocerebridae falls into this basal radiation. The section of Sedentaria starts with Orbiniida, a taxon characterized by elongated, thread-like worms which do not have anterior appendages like palps and comprises several families representing members of the Meiofauna. These minute worms often inhabiting the interstitial spaces in marine sands are suggested to have evolved by progenesis. The second higher taxon is represented by Cirratuliformia comprising nine families of typical sedentary polychaetes each of which showing a remarkable variation of the annelid body plan. Members of this taxon usually exhibit many annelid characters but certain also lack the most typical prostomial appendages, the palps.
Download or read book Aristotle s Ladder Darwin s Tree written by J. David. Archibald and published by Columbia University Press. This book was released on 2014-07-15 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Leading paleontologist David Archibald explores the rich history of visual metaphors for biological order from ancient times to the present and their influence on human beingsÕ perception of their place in nature. Specifically, Archibald focuses on ladders and trees, and the first appearance of trees to represent seasonal life cycles. Their use in ancient Roman decorations and genealogies was then appropriated by the early Christian Church to represent biblical genealogies. The late eighteenth century saw the idea of a tree reappropriated to visualize relationships in the natural world, sometimes with a creationist view, but in some instances suggesting evolution. Charles DarwinÕs On the Origin of Species (1859) exorcised the exclusively creationist view of the Òtree of life.Ó His ideas sparked an explosion of trees, mostly by younger acolytes in Europe. Although DarwinÕs influence waned in the early twentieth century, by midcentury his ideas held sway once again in time for another and even greater explosion of tree building, generated by the development of new theories on how to assemble trees, the birth of powerful computing, and the emergence of molecular technology. Throughout his far-reaching study, and with the use of many figures, Archibald connects the evolution of Òtree of lifeÓ iconography to our changing perception of the world and ourselves, offering uncommon insight into how we went from standing on the top rung of the biological ladder to embodying just one tiny twig on the tree of life.
Download or read book Marine Plankton written by Claudia Castellani and published by Oxford University Press. This book was released on 2017 with total page 715 pages. Available in PDF, EPUB and Kindle. Book excerpt: A thorough understanding of planktonic organisms is the first step towards a real appreciation of the diversity, biology, and ecological importance of marine life. A detailed knowledge of their distribution and community composition is particularly important since these organisms are often very delicate and sensitive to change, and can be used as early indicators of environmental change. Natural and man-induced modification of the environment can affect both the distribution and composition of plankton, with important ecological and economic impacts. Marine Plankton provides a practical guide to plankton biology with a large geographic coverage spanning the North Sea to the north-eastern Atlantic coast of the USA and Canada. The book is divided into three sections: an overview of plankton ecology, an assessment of methodology in plankton research covering sampling, preservation, and counting of samples, and a taxonomic guide richly illustrated with detailed line drawings to aid identification. This is an essential reference text suitable for senior undergraduate and graduate students taking courses in marine ecology (particularly useful for fieldwork) as well as for professional marine biologists. It will also be of relevance and use to environmental scientists, conservation biologists, marine resource managers, environmental consultants, and other specialised practitioners.
Download or read book The North American Journals of Prince Maximilian of Wied written by Prince Alexander Philipp Maximilian of Wied and published by University of Oklahoma Press. This book was released on 2014-04-09 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Made famous through the paintings of Swiss artist Karl Bodmer, the North American expedition of German naturalist Prince Maximilian of Wied in 1832–34 was the first scientific exploration of the Missouri River’s upper reaches since the epic journey of Lewis and Clark almost thirty years earlier. Maximilian’s journal has never been presented fully in English—until now. This collector’s-quality, oversized volume, the first of a three-volume set, draws on the Maximilian-Bodmer Collection at Joslyn Art Museum in Omaha, Nebraska. The North American Journals offer an incomparable view of the upper Missouri and its Native peoples at a pivotal moment in the history of the American West. This meticulous account, newly translated with extensive modern annotation, faithfully reproduces Maximilian’s 110 drawings and watercolors as well as his own notes, asides, and appendices. Volume I, which covers May 1832 to April 1833, documents Maximilian’s voyage to North America and his first encounters with Indians upon reaching the West. This is an essential resource for nineteenth-century western American history and a work of lasting value. This book is published with the assistance of the National Historical Publications and Records Commission.
Download or read book National Library of Medicine Current Catalog written by National Library of Medicine (U.S.) and published by . This book was released on 1965 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Joint Volumes of Papers Presented to the Legislative Council and Legislative Assembly written by New South Wales. Parliament and published by . This book was released on 1915 with total page 1052 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes various departmental reports and reports of commissions. Cf. Gregory. Serial publications of foreign governments, 1815-1931.
Download or read book Report of the Trustees of the Australian Museum for the Year Ended 30 June written by Australian Museum and published by . This book was released on 1901 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ichthyological Exploration of Freshwaters written by and published by . This book was released on 2009 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of the Malaysian Branch of the Royal Asiatic Society written by and published by . This book was released on 1984 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Le R gne Animal Distribu D apr s Son Organisation Pour Servir De Base L histoire Naturelle Des Animaux Et D introduction L anatomie Compar e Volume 2 written by Georges Cuvier and published by Legare Street Press. This book was released on 2023-07-18 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Un livre scientifique sur la classification et l'anatomie des animaux This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Le r gne animal distribu d apr s son organisation written by Georges baron Cuvier and published by . This book was released on 1836 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Le R gne Animal Distribu D apr s Son Organisation written by Georges baron Cuvier and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin de L Institut Fondamental D Afrique Noire written by Institut fondamental d'Afrique noire and published by . This book was released on 1967 with total page 1018 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Le R gne Animal Distribu d Apr s Son Organisation pour Servir de Base A l Histoire Naturelle des Animaux Et d Introduction A l Anatomie Compar e Vol 3 written by Georges Cuvier and published by Forgotten Books. This book was released on 2018-03-11 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Le Règne Animal Distribué d'Après Son Organisation, pour Servir de Base A l'Histoire Naturelle des Animaux Et d'Introduction A l'Anatomie Comparée, Vol. 3: Contenant les Crustacés, les Arachnides Et les Insectes Surchargë de travaux et cédant peut - ètre trop aisément à l'impulsion de l'amitié à mon empresse ment à lui ètre utile M. Cuvier m'a confié la rédac tion de la partie de, cet ouvrage qui traite des insectes. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Annual Report of the Trustees written by Australian Museum and published by . This book was released on 1913 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Le R gne animal distribu d apr s son organisation pour servir de base l histoire naturelle des animaux et d introduction l anatomie compar e written by Georges Cuvier and published by . This book was released on 1836 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Le r gne animal distribu d apr s son organisation written by Georges baron Cuvier and published by . This book was released on 1829 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
