Download or read book The semi aquatic freshwater earthworms of the genus Glyphidrilus Horst 1889 from Thailand Oligochaeta Almidae with re descriptions of several species written by Ratmanee Chanabun and published by PenSoft Publishers LTD. This book was released on 2012-02-06 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ten new species of semi-aquatic earthworm genus Glyphidrilus Horst, 1889 are described from several river systems in Thailand. The earthworms were all found at a depth of 5?15 cm from the surface in wet top soil and usually near casts. The worms excrete casts on the soil surface by locating the tails up to the soil surface while the heads go down to deeper soils. They have the peculiar expanded epidermis at about clitellum position called ?wings? which function is still unknown. They produce long cocoons wich locate vertically in the soil in the same places as the worms. One cocoon produces 7-10 juveniles. All the ten new described species appear to be highly endemic to particular watershed with very little range overlap between them, and most are confined to a small region. The lowland paddy systems in Thailand have been colonized by some species of Glyphidrilus, where they occur in the rice paddy throughout the propagation period (wet season) from planting of the seedlings to post harvest (dry season). The worms did well in areas of organic farming and so are likely to be sensitive to modern agrochemical contamination of the environment.
Download or read book written by สมโภชน์ ศรีโกสามาตร and published by . This book was released on 2014 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: On biodiversity, biology research, and ecosystem management in Thailand; volume brought out in commemoration of the 72nd birthday of Professor Dr. Wisut Baimai of Mahidol University.
Download or read book Earthworms and Their Allies written by Frank E. Beddard and published by . This book was released on 1912 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Freshwater Animal Diversity Assessment written by E.V. Balian and published by Springer Science & Business Media. This book was released on 2008-04-27 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a comprehensive study of species- and genus-level diversity and chorology of the global freshwater fauna to date. It gives a state of the art assessment of the diversity and distribution of Metazoa in the continental waters of the world.
Download or read book ASSESSMENT AND CONTROL OF BIOLOGICAL INVASION RISKS written by Fumito Koike and published by World Conservation Union. This book was released on 2006 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological invasion, an issue of growing importance due to the significant increase in international transportation and trade, can disturb the balance of local ecosystems and even destroy them. This collection of papers presented at the International Conference on Assessment and Control of Biological Invasion Risks held in August 2004 at Yokohama National University discusses risk assessment, risk management and eradication. It also includes contributions reporting on the current status of invasion and the properties of alien species in East Asia.
Download or read book Fauna of Tamil Nadu written by and published by . This book was released on 2009 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Freshwater Biodiversity written by Brian Groombridge and published by . This book was released on 1998 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents "Freshwater Biodiversity: A Preliminary Global Assessment," number eight of the World Conservation Monitoring Centre (WCMC) Biodiversity Series. Features information on the biodiversity of inland waters, prepared for the United Nations Environment Programme (UNEP) by the WCMC in Cambridge.
Download or read book Eel Biology written by K. Aida and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a food resource in both Eastern and Western countries, the eel is an important fish. Over the years, remarkable progress has been achieved in understanding the mysterious life cycle of eels that has fascinated scientists since the age of Aristotle. The spawning area of the Japanese eel was discovered and the migratory route of its larvae was elucidated. With the development of techniques for artificial induction of gonadal maturation, it became possible to obtain hatched larvae. Larval rearing to the leptocephalus stage, one of the most difficult tasks involved in eel culture, finally was achieved. By presenting these important breakthroughs, Eel Biology will be of great help in the development of effective management strategies for maintaining stable eel populations. With contributions by leading experts, this book is a valuable source for researchers as well as industry technicians in the fields of aquatic biology, aquaculture, and fisheries.
Download or read book Tropical Soil Biology and Fertility written by Jonathan Michael Anderson and published by . This book was released on 1989 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this handbook methods are given to determine soil characteristics, organic matter compounds, phosphorus in soil, nitrogen fixation, soil solution sampling, plant nutrient uptake and the nitrogen availability
Download or read book Mediterranean Type Ecosystems written by George W. Davis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: Human activities are causing species extinctions at a rate and magnitude rivaling those of past geologic extinction events. Exploring mediterranean-type ecosystems - the Mediterranean Basin, California, Chile, Australia, and South Africa - this volume addresses the question whether biological diversity plays a significant role in the functioning of natural ecosystems, and to what extent that diversity can be reduced without causing system malfunction. Comparative studies in ecosystems that are similar in certain respects, but differ in others, offer considerable scope for gaining new insights into the links between biodiversity and ecosystem functioning.
Download or read book Earthworm Ecology written by Clive A. Edwards and published by CRC Press. This book was released on 2004-03-29 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthworm Ecology, Second Edition updates the most comprehensive work available on earthworm ecology with extensive revisions of the original chapters. New chapters analyze the history of earthworm research, the importance of earthworms as representatives of soil fauna and how they affect plant growth, the effects of the invasion of exotic earthworms into North America and other regions, and vermiculture and vermicomposting in Europe.This well-illustrated, expansive study examines the important and often overlooked impact earthworms have on the environment. It discusses the impact of climate, soil properties, predation, disease and parasitism, and competition upon earthworm ecology.
Download or read book Heavy Metals in the Environment Origin Interaction and Remediation written by Heike Bradl and published by Elsevier. This book was released on 2005-03-03 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excessive levels of heavy metals can be introduced into the environment, for example, by industrial waste or fertilizers. Soil represents a major sink for heavy metals ions, which can then enter the food chain via plants or leaching into groundwater. In Heavy Metal Ions in the Environment, the author looks at where heavy metals ions come from, how they interact with the environment and how they can be removed from the environment – by a process known as remediation. This book serves as a valuable addition to an increasingly important field of study, which is, at present, served by a limited number of archival texts. Includes comprehensive coverage of heavy metal ions in the environment Is practical and easy to read Is suitable for students and researchers in environmental science and environmental or chemical engineering
Download or read book Aquatic Oligochaeta written by G. Bonomi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: At the First International Symposium on Aquatic Oligochaete Biology in Sidney, B. C. , the suggestion was made to hold the second in Pallanza, on Lake Maggiore, at the C. N. R. -Istituto Italiano di Idrobiologia. At the same time it was decided that there should be a symposium every third year. The organization of the symposium was made considerably easier by the Senior Editor's having been in personal contact with several Russian colleagues (courtesy of a kind invitation from the U. S. S. R. Academy of Sciences), the 'Hamburg Group' and the Junior Editor. Correspondence with various students of Oligochaeta also furnished many useful suggestions. The Second International Symposium on Aquatic Oligochaete Biology was therefore held in Pallanza in late September 1982 and was attended by 53 scientists from 16 countries in Europe, North America, Asia and Australia. No review papers were formally invited as this had already been done at the first symposium: all the papers were accordingly allotted the same time for oral presentation. These proceedings contain all papers Hrabe and Slepukhina, which were given in absentia, as it presented at the symposium, including those by was impossible for the authors to join the group. The main topics were taxonomy and evolution of Oligo chaeta, life-cyle and population studies, the role of Oligo chaeta in assessing water pollution, physiolog ical studies, community and distribution studies. Special taxonomic workshops took place in the evenings.
Download or read book West Caroline Islands written by United States. Office of the Chief of Naval Operations and published by . This book was released on 1944 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Burmese Earthworms written by Gordon Enoch Gates and published by . This book was released on 1972 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Earthworm Management in Tropical Agroecosystems written by Patrick Lavelle and published by Oxford University Press, USA. This book was released on 1999 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers all aspects of the ecology of tropical earthworm communities and their effects on soil properties and plant growth. It examines the latest methods and technologies for their management and includes work from leading experts in Europe, South and Central America, Africa, and Asia.
Download or read book Prodromo Di Un opera Da Imprimersi Sopra Le Riproduzioni Animali written by Lazzaro Spallanzani 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: Lazzaro Spallanzani was an Italian biologist and physiologist who made significant contributions to the fields of anatomy and physiology. In this book, Spallanzani describes his experiments with animal reproduction, including artificial insemination and cross-breeding. This work was highly influential in the development of modern biology and remains an important resource for students and scholars of the subject. 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.
