Download or read book Smithsonian Contributions to Zoology written by and published by . This book was released on 1989 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spider Crabs Crustacea Brachyura Majidae from the International Indian Ocean Expedition 1963 1964 written by D. J. G. Griffin and published by . This book was released on 1974 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thorp and Covich s Freshwater Invertebrates written by James H. Thorp and published by Elsevier. This book was released on 2015-12-28 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thorp and Covich's Freshwater Invertebrates: Keys to Nearctic Fauna, Fourth Edition presents a comprehensive revision and expansion of this trusted professional reference manual and educational textbook—from a single North American tome into a developing multivolume series covering inland water invertebrates of the world. Readers familiar with the first three editions will welcome this new volume. The series, now entitled Thorp and Covich's Freshwater Invertebrates, (edited by J.H. Thorp), began with Volume I: Ecology and General Biology, (edited by J.H. Thorp and D.C. Rogers). It now continues in Volume II with taxonomic coverage of inland water invertebrates of the Nearctic zoogeographic region. As in previous editions, all volumes of the fourth edition are designed for multiple uses and levels of expertise by professionals in universities, government agencies, and private companies, as well as by undergraduate and graduate students. - Features zoogeographic coverage for all of North America, south to the general area of the Tropic of Cancer, and Greenland and Bermuda - Provides keys to families of freshwater insects - Provides keys to all other inland water invertebrates at the taxonomic level appropriate for the current scientific knowledge - Includes multiple taxonomic keys in each chapter that progress from higher to lower taxonomic levels, thereby allowing users to work up to their level of need and expertise - Presents additional material in each chapter on group introduction, limitations to the keys, terminology and morphology, material preparation and preservation, and references

Download or read book Bulletin of the National Science Museum written by and published by . This book was released on 1978 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reproduction and Development in Platyhelminthes written by T. J. Pandian and published by CRC Press. This book was released on 2020-01-28 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive elucidation on aspects of reproduction and development in platyhelminthes covering from acoelids to taeniids. With the unique presence of neoblasts, turbellarians serve as a model for studies on cancer and senescence. Of ~ 27,000 species, ~ 77% are parasites; they are harmful to man and his food basket from livestock and fish. The stress hormone, cortisol level is responsible for susceptibility and resistance of the host. In digeneans, the propagatory multiplication potency is retained by all the larval forms and in either direction in sporocyst. The higher clonal diversity, mixing and selection in Second Intermediate Host (SIH) may purge inbreeding depression suffered by the fluke on propagatory multiplication in First Intermediate Host (FIH). Of 12,012 digeneans, 88% may engage 33,014 potential SIH species. They have the choice to select one among the available/awaiting 3.5 host species. The motility of vertebrate host and euryxenic flexibility/scope for selection of SIH species has increased lineage diversification in digeneans. The life cycle of cestodes is divided into aquatic and terrestrial patterns. The former includes (i) oncosphere and (ii) coracidium types and the latter (iii) hexacanth-cysticercoid, (iv) hexacanth-tetrathyridium and (v) hexacanth-cysticercus types. The share for the oncosphere, coracidium and hexacanth types is 17.0, 29.5 and 46.5%, respectively. The staggering fecundity and adoption of the intermediate host in the herbivorous/insectivorous food chain have enriched Taenioidea as the most (2,264) speciose order. Sex specific genes Smed-dmd 1 and macbol have been identified, and neuropeptides and dipeptides are involved in sexualization. Trematodes are unable to parasitize elasmobranchs, as they cannot suck body fluid/blood containing a high level of urea. Relatively higher fecundity supplemented with propagatory multiplication, incorporation of SIH in 88% species, clonal selection in SIH, and euryxenic flexibility and the widest choice for selection of SIH have led to the highest lineage diversification to render digeneans as the most speciose order in Platyhelminthes.

Download or read book Studies in the Tiphiidae X Hylomesa a New Genus of Myzinine Wasp Parasitic on Larvae of Longicorn Beetles Hymenoptera written by Arthur Grover Humes and published by . This book was released on 1967 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Freshwater Planarians Turbellaria of North America written by Roman Kenk and published by . This book was released on 1980 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Zoological Record written by and published by . This book was released on 1984 with total page 1016 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index catalogue of Medical and Veterinary Zoology written by and published by . This book was released on 1974 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the United States National Museum written by United States National Museum and published by . This book was released on 1968 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book On a Small Collection of Ascidians from the resund and South eastern Kattegatt written by Robert Hannay Millar and published by . This book was released on 1959 with total page 842 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bulletin written by Kyoto (Japan) Gakugei University and published by . This book was released on 1957 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water Pollution Control Research Series 18050 ELD 02 72 written by United States. Environmental Protection Agency and published by . This book was released on 1972 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Library of Congress Subject Headings written by Library of Congress and published by . This book was released on 1990 with total page 1544 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index catalogue of Medical and Veterinary Zoology written by United States. Bureau of Animal Industry. Zoological Division and published by . This book was released on 1932 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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

Download or read book Lake Biwa Interactions between Nature and People written by Hiroya Kawanabe and published by Springer Nature. This book was released on 2020-08-25 with total page 960 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although, the first edition had a similar focus, more than five years have passed since its publication and the biological and social circumstances of the lake have drastically changed due to, for example, the further expansion of alien species, the decrease of indigenous species, the progress of integrated watershed management by the Union of the Kansai Government which was established in 2010, the legislation of the Conservation and Restoration Act of Lake Biwa in 2015 and more. The new edition will therefore feature updated and new information on the above and more topics as well as updated and revised data based on the latest research. Inventories of respective taxa, especially those of small animals, are also revised based on the latest studies. Furthermore, this volume covers the characteristics of the biota of this ancient lake, but at the same time, it will also approach it as a ‘culture ancient lake’. Other topics also include water pollution, lakeshore development, the effects of global warming in the past and present, the influence of people, and countermeasures by local and national governments. Moreover, the volume also provides a comprehensive view on the future of Lake Biwa and that of its residents. Miraculously enough, this ancient lake has kept its water quality clear even until today despite the fact of more than 1.4 million people living on its shores. Finally, the book also gives indispensable information to those engaged in improving and conserving water regimes of lakes and other water bodies all over the world and to those interested in the culture and history of Japan. Lake Biwa is not only one of the rarest ancient lakes of the world, but the people’s involvement with the lake also goes back a long way. This is shown in the diverse culture developed in this area and in the various archaeological finds that date back as early as the Jomon Period, nearly 10.000 years ago. Today Lake Biwa fulfills an important role as a water resource by providing domestic, commercial, industrial, and agricultural water for over 14 million residents living around the Lake Biwa-Yodo River drainage basin. This updated volume focuses on the geological and biological features of the lake as well as on the long-term interactions between the people and the lake.