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Author : Melvyn Roderick Dickson
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (222 download)
Download or read book Fine Structure of Some Lower Metazoa written by Melvyn Roderick Dickson and published by . This book was released on 1967 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ellsworth C. Dougherty
Publisher : Univ of California Press
ISBN 13 :
Total Pages : 502 pages
Book Rating : 4./5 ( download)
Download or read book The Lower Metazoa written by Ellsworth C. Dougherty and published by Univ of California Press. This book was released on with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : D. C. Smith
Publisher : Elsevier
ISBN 13 : 1483145727
Total Pages : 189 pages
Book Rating : 4.4/5 (831 download)
Download or read book Nutrition in the Lower Metazoa written by D. C. Smith and published by Elsevier. This book was released on 2013-10-22 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nutrition in the Lower Metazoa contains the proceedings of a meeting held at the University of Caen, France on September 11-13, 1979. Organized into 14 chapters, this book begins with a discussion of the phagocytosis in Polycelis tenuis and adaptational aspects in feeding in freshwater triclads. Subsequent chapters explore selection in sponge feeding processes; nutrition in symbiotic Turbellaria; some effects of diet on the biology of the rotifers; and the role of nutrition in the establishment of the green hydra symbiosis. The phosphorus economy of the green hydra symbiosis and the nutrition of marine sponges are also explained.
Author : Ellsworth Charles Dougherty
Publisher :
ISBN 13 : 9781258281946
Total Pages : 490 pages
Book Rating : 4.2/5 (819 download)
Download or read book The Lower Metazoa written by Ellsworth Charles Dougherty and published by . This book was released on 2012-04-01 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: Additional Contributor Is Willard D. Hartman.
Author : Stefan Bengtson
Publisher : Columbia University Press
ISBN 13 : 0231080883
Total Pages : 642 pages
Book Rating : 4.2/5 (31 download)
Download or read book Early Life on Earth written by Stefan Bengtson and published by Columbia University Press. This book was released on 1994 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study is organized around three themes: the origin and early diversification of life during the Archean Eon; the maturation of life and the Earth during the long Proterozoic Eon; and the explosive diversification of multicellular life that marks the dawn of the Phanerozoic Eon. The contributors discuss the coherence of history, the combinatorial generation of taxonomic diversity, early Metazoan evolution, and the Cambrian explosion.
Author : John Gilbert
Publisher : Springer Science & Business Media
ISBN 13 : 9401116067
Total Pages : 576 pages
Book Rating : 4.4/5 (11 download)
Download or read book Rotifer Symposium VI written by John Gilbert and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: As in previous symposia, some current research topics were selected for review and eight invited papers were presented. For the first time a paper was presented on the historical aspects of Rotiferology, covering European research between 1680-1950. A special workshop session was devoted to a debate on a controversial topic: Rotifer Phylogeny. The workshop resulted in a very successful discussion and the integration of scattered evidence and hypotheses on the phylogenetic origin of rotifers, the relationships between major rotifer groups, and the mechanisms of evolution.
Author : A. Maggenti
Publisher : Springer Science & Business Media
ISBN 13 : 146125938X
Total Pages : 382 pages
Book Rating : 4.4/5 (612 download)
Download or read book General Nematology written by A. Maggenti and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text is an overall view of nematology because I believe the science should be treated as a unified discipline. The differences in the biological habits of nematodes do not justify the separation of plant nematologists and animal nematologists, since the separation is not a reflection of any difIerences inherent to nematodes. Therefore, the book is arranged with a format that in the beginning chapters illustrates the similarities and se- quence of development of morphological characters among nematodes regardless of their biological habits. The later chapters illustrate the in- tegration of the evolutionary development of the parasitie habit from related free-living forms. Nematology is probably the last major discipline to establish its inde- pendence from the parent science of zoology. This natural evolvement of nematology has occurred because of the overwhelming accumulation of sophisticated information and research that reflects the unique relation- ships of nematodes to other forms of plant and animal life as weH as their relationships in other facets of the environment.N ematodes are inverte- brate animals that, like insects, are unusual in their great numbers and varieties, their smaH size (generally microscopic), their high degree of internal organization, and their virtually ubiquitous distribution. They oc- cupy almost every ecological niehe, often causing disease of humans, other animals, and plants. These activities often result in debility, death, or in the impairment and loss of food supply with consequent loss to producers and consumers.
Author : E. N. K. Clarkson
Publisher : John Wiley & Sons
ISBN 13 : 1444313320
Total Pages : 471 pages
Book Rating : 4.4/5 (443 download)
Download or read book Invertebrate Palaeontology and Evolution written by E. N. K. Clarkson and published by John Wiley & Sons. This book was released on 2009-07-17 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: Invertebrate Palaeontology and Evolution is well established as the foremost palaeontology text at the undergraduate level. This fully revised fourth edition includes a complete update of the sections on evolution and the fossil record, and the evolution of the early metazoans. New work on the classification of the major phyla (in particular brachiopods and molluscs) has been incorporated. The section on trace fossils is extensively rewritten. The author has taken care to involve specialists in the major groups, to ensure the taxonomy is as up-to-date and accurate as possible.
Author : Henri J. Dumont
Publisher : Springer Science & Business Media
ISBN 13 : 9400992092
Total Pages : 243 pages
Book Rating : 4.4/5 (9 download)
Download or read book Rotatoria written by Henri J. Dumont and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: At the end of the first international Symposium on Rotifers diately accepted to do this, and kindly made an entire in Lunz, Austria, September 1976, entousiastic pleas were special volume of its Journal 'Hydrobiologia' available made for a second gathering of possibly the same format for this purpose. Also, arrangements were made to have and spirit that had made the first one such a great success. the proceedings out as quickly as possible. The proceedings include all papers that were presented One of us (HJD), 'supported' herein by his friends Charles E. King and Jens Petter Nilssen in particular, tentatively in Gent, and two communications by collegues who could suggested that Gent University might host a meeting of not attend in person. They thus amount to 23 original con this kind, having in mind that since the Xlth congress of tributions, including the summaries of the workshops. All SIL in 1950, no other SIL activity had take places in have been reviewed by the editors, and many, in addition Belgium. In view of the relatively large number of Be1gian by one or more referees. Manuscripts have been adjusted, rotifer workers, many among which are or were active in wherever needed, for grammar, clarity of meaning, and Gent, this proposal sounded acceptable to the attendance length. However, where possible, the flavor of some per of the Lunz meeting, who then gave each other rendez sonal styles was left unaltered.
Author : Seth Tyler
Publisher : Springer Science & Business Media
ISBN 13 : 9401127751
Total Pages : 396 pages
Book Rating : 4.4/5 (11 download)
Download or read book Turbellarian Biology written by Seth Tyler and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Turbellarian platyhelminths (or, as they are known now among cladistic systematists, free-living Platyhelminthes) comprise a widely distributed assemblage of lower worms found in marine, freshwater, and even occasionally in terrestrial habitats. The phylum Platyhelminthes may be more widely known for its parasitic members since the major parasitic groups of the tapeworms, flukes, and their relatives are more speciose and have greater impact on everyday human life; but the turbellarians are more diverse and, as inhabitants of virtually any aquatic habitat, are more widespread as well. Many of the lower turbellarians are rather simple in morphology and have served as models for ancestors of the Bilateria, i.e., the bulk of the animal phyla. Others are quite complex organisms, especially in the morphology of their reproductive systems which are highly specialized. The majority are free-living in aquatic habitats but a number of interesting parasitic and commensal species are found scattered among the higher turbellarian taxa. But turbellarians are more than just taxonomic curiosities. They have served as illustrative models in research on a variety of basic life processes. For example, their high capacity for regeneration has made them the subject of a large literature in developmental biology, the occurrence of mixoploidy and other karyological oddities among turbellarians has been important in understanding evolution of the genome, and the fine structure and biochemistry of the nervous system in turbellarians is revealing important principles of the organization of so-called primitive neural systems.
Author : Simon Conway Morris
Publisher : Oxford University Press, USA
ISBN 13 :
Total Pages : 424 pages
Book Rating : 4.:/5 (43 download)
Download or read book The Origins and Relationships of Lower Invertebrates written by Simon Conway Morris and published by Oxford University Press, USA. This book was released on 1985 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presenting a broad overview of current trends and recent research, this book discusses such groups as sponges, ctenophores, rotifers, annelids, and pogonophores. The book's assessment of lower invertebrates include investigations of reproduction and larval development relevant to phylogeny, problems of pseudocoelomate evolution, and the fossil record of lower invertebrates.
Author : Werner E.G. Müller
Publisher : Springer Science & Business Media
ISBN 13 : 3642722369
Total Pages : 191 pages
Book Rating : 4.6/5 (427 download)
Download or read book Molecular Evolution: Towards the Origin of Metazoa written by Werner E.G. Müller and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently, new genes and their proteins that revealed striking new insights into the early evolution of multicellular animals have been identified and characterized from members of the lowest metazoan phylum, the porifera (sponges). The unexpected result was that the sequences obtained from sponge displayed high similarity to those found in higher metazoa; in consequence, it was concluded that during the transition from protozoa to metazoa the major structural and regulatory proteins evolved only once. The data gathered are now powerful arguments to establish monophyly of metazoa; in addition, new insights on the evolutionary diversification of metazoa were obtained.
Author : E.R. Schockaert
Publisher : Springer Science & Business Media
ISBN 13 : 9400986688
Total Pages : 300 pages
Book Rating : 4.4/5 (9 download)
Download or read book The Biology of the Turbellaria written by E.R. Schockaert and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Third International Symposium Held in Diepenbeek, Belgium, August 11-15, 1980
Author : J. Bereiter-Hahn
Publisher : Springer Science & Business Media
ISBN 13 : 3642515932
Total Pages : 858 pages
Book Rating : 4.6/5 (425 download)
Download or read book Biology of the Integument written by J. Bereiter-Hahn and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt: The integument plays an important role in the survival of meta zoans by separating and protecting them from a hostile environ ment. Its function ranges from protection against injury and in fection; partlcipation in the regulation of body temperature and water balance, to respiratory activity, monitoring of the environ ment and production of signals related to behaviour. All these result from specific structural, biochemical and physiological properties of intra-and extracellular components of the integu ment. Thus its characterization can be best accomplished by a multidisciplinary approach with authors specialized in different fields of science. This multi-author book, in two volumes, provides an up-to date survey of the literature. The first volume deals with the integument of invertebrates, the second with that of vertebrates, both organized primarily on a phylum basis. As the level of knowledge on the integument of phyla differs considerably, the information provided is correspondingly either limited or con densed. For some of the smaller groups of invertebrates little information is available, as often only a few electron micrographs are to be found in the literature; on the other hand, from the large body of knowledge existing for vertebrates, particularly for mammals, no complete overview can be provided, but publica tions giving access to further information have been reviewed critically.
Author :
Publisher : Academic Press
ISBN 13 : 0080579515
Total Pages : 463 pages
Book Rating : 4.0/5 (85 download)
Download or read book Advances in Marine Biology written by and published by Academic Press. This book was released on 1992-07-29 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Marine Biology
Author : Jere H. Lipps
Publisher : Springer Science & Business Media
ISBN 13 : 1489924272
Total Pages : 568 pages
Book Rating : 4.4/5 (899 download)
Download or read book Origin and Early Evolution of the Metazoa written by Jere H. Lipps and published by Springer Science & Business Media. This book was released on 2013-11-21 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several years ago, we realized that the most prominent ideas that had been ex pressed about the origin and early evolution of the Metazoa seemed to have been developed chiefly by zoologists using evidence from modern species without reference to the fossil record. Paleontologists had, in fact, put forth their own ideas but the zoological and the paleontological evidence were about the problem, seldom considered together, especially by zoologists. We believed that the paleon tological documentation of the first Metazoa was too scattered, too obscure to Western readers, and much of it too recent to have been readily available to our colleagues in zoology. Whether or not that was entirely true, we thought that a single volume reviewing the fossil record of the earliest Metazoa would be useful to many in both paleontology and zoology, especially since so much new informa tion has been developed in the last few years. Some of this information has been summarized in general articles recently, but an overview of most of the field does not exist. We therefore organized this book in five parts so that the evidence could be placed in perspective and summarized and inferences made from it. Part I intro duces the previous hypotheses that have been proposed for the origin and early radiation of Metazoa. Part II consists of two summary chapters that set the sedi mentological, geochemical, and biological background to the known radiations of Metazoa.
Author : Claus Nielsen
Publisher : OUP Oxford
ISBN 13 : 0191588520
Total Pages : 578 pages
Book Rating : 4.1/5 (915 download)
Download or read book Animal Evolution : Interrelationships of the Living Phyla written by Claus Nielsen and published by OUP Oxford. This book was released on 2001-03-08 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: Animal Evolution is a complete analysis of the evolutionary interrelationships and myriad diversity of the animal kingdom. Using modern phylogenetic reasoning based on characters from an extensive review of morphology, including ultrastructure, and embryology, each phylum is analysed to ascertain its monophyly and hence its ancestral characters. These ancestral characters are then used to construct a complete phylogenetic tree of the extant animal phyla. This new edition of Animal Evolution brings the subject fully up to date including some new ideas and emphases, as well as new bibliographic data. It also includes new chapters on the use of computer programmes and on the use of the new molecular techniques to create phylogenies, both techniques that have grown in prevalence in the field since the first edition was published. Illustrated throughout with finely detailed line drawings and clear diagrams. From reviews of the first edition of Animal Evolution: 'A clear and engaging style exemplified by a series of superbly concise descriptions of the phyla.... These are complemented by excellent illustrations.... The volume belongs on every biologist's bookshelf.' Simon Conway- Morris, Nature 'Texts like these constitute the very cream of taxonomic literature.... It really is a joy to read... and in my opinion it constitutes a highly recommended book for all zoologists. I think it is also particularly suited for seminars on animal classification for both undergraduate and graduate students.' JC von Vaupel Klein, Crustaceana 'I highly recommend this book as a fascinating theory of animal relationships, and an excellent summary of the phylogenetically informative aspects of the biology of the whole animal kingdom.' Maximilian J Telford, Systematic Entomology
