Download or read book Seasonal History of the Southwestern Corn Borer Diatraea Grandiosella Dyar in Oklahoma and Experiments on Methods of Control written by Robert Ralph Walton and published by . This book was released on 1948 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Toward Insect Resistant Maize for the Third World written by International Maize and Wheat Improvement Center and published by CIMMYT. This book was released on 1989 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetically Engineered Organisms written by Deborah K. Letourneau and published by CRC Press. This book was released on 2001-09-26 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetic engineering suggests new avenues for constructing useful products, but it also poses hazards to the health of the environment and the public. Delineating those hazards is complicated, difficult, and important at every level of risk assessment and risk management decision-making. Risk assessment and risk management may be further complicated
Download or read book Research Bulletin written by Earl McKee Kroth and published by . This book was released on 1979 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Bulletin written by G. Michael Chippendale and published by . This book was released on 1979 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Miscellaneous Publications of the Entomological Society of America written by Entomological Society of America and published by . This book was released on 1985 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Bulletin written by University of Missouri--Columbia. Agricultural Experiment Station and published by . This book was released on 1979 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characterization of Information Requirements for Studies of CO2 Effects written by Margaret R. White and published by . This book was released on 1986 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Change in Mountains and Uplands written by Martin Beniston and published by Routledge. This book was released on 2016-05-06 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mountain environments are often perceived to be austere, isolated, and inhospitable. In fact, these areas are of immense value to mankind, providing direct life support to close to 10 percent of the world's population and sustaining a wide variety of species - many of which are endemic to this environment. 'Environmental Change in Mountains and Uplands' provides detailed account of the fragile and marginal physical and socio-economic systems which make up the world's mountain regions. Discussing the direct and indirect impacts of human interference on environmental ecosystems, it then turns to the social and economic consequences of such environmental change - both upon the mountain environment itself and upon the populations who depend on mountain resources for their economic sustenance. This book includes a review of possible implications for adaption and mitigation strategies in a global context. Working within a broad temporal scale, it draws upon paleoenvironmental records to document past changes which have occured in the absence of major anthropogenic influences, as well as utilising modelling as a means to assessing future environmental change.
Download or read book Entomologia generalis written by and published by . This book was released on 1981 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Vegetable Pests written by John L. Capinera and published by Gulf Professional Publishing. This book was released on 2001 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt: Assisting anyone in need of an easy-to-use yet comprehensive survey of all pests likely to be encountered in North America, this handbook provides thorough identification guides, descriptions of pest life history, and pest management recommendations. Including hundreds of illustrations, this guide is cross-referenced to scientific literature, and includes color plates for ease of insect identification.
Download or read book The Impact of Climate Change from Increased Atmospheric Carbon Dioxide on American Agriculture written by Wayne L. Decker and published by . This book was released on 1986 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annals of the Entomological Society of America written by and published by . This book was released on 2003 with total page 986 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Global Change and Protected Areas written by Guido Visconti and published by Springer Science & Business Media. This book was released on 2006-04-11 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: High mountains can be considered as particularly appropriate environments to detect effects ofclimate change on natural biocoenoses in a global scale for the following reasons: Firstly, ecosystems at the l- temperature limits of plant life are generally thought to be especially sensitive to climate change [1][2][3]. An already ongoing upward shift of vascular plants at high summits in the Alps, determined by the Austrian IGBP-research [4][5][6][7][8], is most likely a response to the atmospheric warming since the 19th century. Secondly, high mountains still comprise the most natural ecosystems in many countries, being largely untouched by human settlements and agricultural influences, Therefore, climatic effects on ecosystems can be studied without masking effects from human land use. Thirdly, high mountain ranges are present in virtually every major zonobiome of the earth. The research initiative GLORIA aims to establish an urgently needed global monitoring network, by using high mountain ecosystems as sensitive indicators, as required in the “IGBP-Mountain Workplan” [9]. Moreover, a deeper understanding of assemblagemechanisms andassemblage processes in vegetation patterns as a contribution to ecological theory can be expected. This paper gives a short general overview about GLORIA and a first outline about the concept, method, and some few results of the “Multi Summit-Approach”, one of the basic intentions within the proposed network. It aims to encourage the involvement of high mountain researchers and research co-ordinators in a detailed discussion of the proposed research activities and in a co-operation within the planned global monitoring network.
Download or read book Handbook of Insect Rearing written by Pritam Singh and published by Elsevier Publishing Company. This book was released on 1985 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Stalk Borer Resistance Mechanisms and the Development of a Population for Multiple Stalk Borer Resistance in Maize Zea Mays L written by Dirk Laris Benson and published by . This book was released on 1986 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metabolic Aspects Of Lipid Nutrition In Insects written by T. E. Mittler and published by CRC Press. This book was released on 2019-03-01 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our understanding of the physiological function of insect essential lipids has long been flawed by major uncertainties. It was discovered long ago that dietary sterol is a necessary nutrient for all insects, which radically sets them apart from the vertebrates in terms of qualitative nutrient requirements. Because of the physiological importance of sterol as a molting hormone precursor in insects and the implications of this for the development of new insecticides, a wealth of investigation into insect sterol metabolism followed, covering both the ways in which insects convert diverse food-plant sterols into the major tissue sterols and how these in turn are metabolized into the ecdysone molting hormones. However, for the classes or essential Lipid nutrients required by vertebrates, research dealing with insects has been scant and, more often than not, rather indeterminate. Many, but by no means all, insects studied appear to require essential fatty acids, though virtually nothing has been found out about the metabolism or essential physiological function of these acids. Excepting vitamin A, needed for insect vision, the various vertebrate fat-soluble vitamins appear to have no significance for insect physiology, and results of the occasional attempts to demonstrate functions for them in growth and development have in most cases been tantalizingly equivocal. In recent years some notable advances were made in tne study or essential fatty acids and fat-soluble vitamins in insects, and work on insect sterol nutrition and metabolism continues with ever-increasing sophistication. The contributors to this book summarize, discuss, and speculate on these issues. Their work is based on papers presented at the 1980 World Congress of Entomology at Kyoto, Japan.
