Download or read book Tropical Zooplankton written by Henri J. Dumont and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our knowledge of the limnology of the waters situated, roughly, between the tropics of cancer and of capricorn, has depended for a long time on the expedition-approach, and therefore developed in a rather irregular, haphazard way, with the personal incentive of a small number of individuals as the main driving force. Things slowly started to change in the 1950s, and at an accelerating rate in the 1960s and 1970s. The IBP, and later the SCOPE and MAB programs, whatever their shortcomings are or may have been, promoted in-depth research of a small number of tropical lakes. For one thing, they showed the need for the creation of in situ limnological research institutes. When, in the 1970s, limnological research facilities or their nuclei began to appear in the tropical zones of all continents, an interesting phenomenon occurred: while most of the young native limnologists had received their training in advanced centres or courses held in the temperate (and developed) climatic zones, quite a few of their former supervisors or their associates became interested in warm lakes and rivers as well, using the new or newly expanded local institutes. We are, today, still in this phase and it is, apparently, expanding even further. Although not all experiments of this kind lead to happy marriages, a few were quite successful, and several papers contained in the present volume are hoped to reflect this.

Download or read book OTS written by United States. Department of Commerce. Office of Technical Services and published by . This book was released on 1975 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Parasitic Nematodes of Plants and Their Control Measures written by Ekaterina Sergeevna Kirʹi︠a︡nova and published by . This book was released on 1980 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Russian Literature on Nematodes written by T. S. Skarbilovich and published by . This book was released on 1985 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Parasitic Nematodes of Woody and Herbaceous Plants written by Galina Ivanovna Solovʹeva and published by . This book was released on 1975 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Zealand Journal of Crop and Horticultural Science written by and published by . This book was released on 2001 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book National Agricultural Library Catalog written by National Agricultural Library (U.S.) and published by . This book was released on 1982 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book National Agricultural Library Catalog 1966 1970 Names written by National Agricultural Library (U.S.) and published by . This book was released on 1973 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Great Soviet Encyclopedia written by Aleksandr Mikhaĭlovich Prokhorov and published by . This book was released on 1973 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hemp Diseases and Pests written by John Michael McPartland and published by CABI. This book was released on 2000 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hemp is enjoying a worldwide resurgence. This book combines a useful review of the hemp pest and disease literature published over the past 50 years, with up-to-date information on modern biological control techniques. Each pest and disease organism is presented in the same format, covering range and economic impact, symptoms, life history, diagnosis, and both new and old techniques for biological control and chemical control. Easy to use keys are included for rapid identification of the most common pests. Introductory chapters describe the general principles of plant protection, requirements for healthy plant growth, and taxonomy of parasites and pathogens.

Download or read book National Agricultural Library Catalog 1966 1970 Subjects written by National Agricultural Library (U.S.) and published by . This book was released on 1973 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 1088 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book S sswasserfauna von Mitteleuropa written by and published by . This book was released on 1995 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Helminths of Wildlife written by N. Chowdhury and published by Science Publishers. This book was released on 2001 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research has revealsed that there are more than 80,000 species of nematodes, which could infect over 40,000 species of vertebrates. Yet most helminthological research is limited to taxonomic studies based on opportunistic sampling in localized geographic areas around the world. This volume encompasses a holistic approach as it touches many ecological niches and interactions between helminths and their mammalian hosts.

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 1950 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Plant Parasitic Nematodes written by Bert Zuckerman and published by Elsevier. This book was released on 2012-12-02 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant Parasitic Nematodes, Volume III provides a comprehensive discussion of the different advances in plant nematology. This includes biochemical techniques to taxonomy and innovation in transmission and scanning electron microscopy technology. It explains a broadened basis for understanding nematode physiology and behavior and the sensory mechanisms that govern nematode actions and plant host-nematode interactions. The book discusses the development of modern approaches to the evaluation and reduction of crop losses. The emphasis of this volume is on plant parasites and insights gained through research on other nematodes. In particular, the book explains the anatomical, developmental, behavioral, and genetic studies on the free-living nematode Cenorhabditis elegans, which is a widely used laboratory model for examining various biological problems. The information provided by various researches on C. elegans increases our understanding about the relevance of nematodes to general biological processes in higher organisms, including man. The book is divided into 19 chapters which cover the following concepts of plant nematology: biochemistry, cytochemistry, and genetics; morphology and function; host-parasite relations; and evaluation and control of crop losses. The present volume is an excellent reference for students, lecturers, and research professionals in plant parasitology and related fields.

Download or read book Parasite Communities Patterns and Processes written by Gerald W. Esch and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: We first discussed the possibility of organizing a symposium on helminth communities in June, 1986. At that time, we were engaged in writing a joint paper on potential structuring mechanisms in helminth communities; we disagreed on a number of issues. We felt the reason for such debate was because the discipline was in a great state of flux, with many new concepts and approaches being introduced with increasing frequency. After consider able discussion about the need, scope and the inevitable limitations of such a symposium, we decided that the time was ripe to bring other ecologists, engaged in similar research, face-to-face. There were many individuals from whom to choose; we selected those who were actively publishing on helminth communities or those who had expertise in areas which we felt were particularly appropriate. We compiled a list of potential participants, contacted them and received unanimous support to organize such a symposium. Our intent was to cover several broad areas, fully recognizing that breadth negates depth (at least with a publisher's limitation on the number of pages). We felt it important to consider patterns amongst different kinds of hosts because this is where we had disagreed among ourselves.