Download or read book Entomology Abstracts written by and published by . This book was released on 1992 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: Monthly, with annual author and subject indexes. Abstracts from about 2750 primary journals dealing with the subject of insects. Arranged in classified order. Entries include titles given or translated into English, authors, addresses offirst authors, and abstracts; all insects cited in the abstracts are identified by scientific family names. Each monthly issue has Index to classes and orders, Author index.

Download or read book Report of the Institute of Terrestrial Ecology written by and published by . This book was released on 1989 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dynamics of Forest Insect Populations written by Alan A. Berryman and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Insects multiply. Destruction reigns. There is dismay, followed by outcry, and demands to Authority. Authority remembers its experts or appoints some: they ought to know. The experts advise a Cure. The Cure can be almost anything: holy water from Mecca, a Government Commis sion, a culture of bacteria, poison, prayers denunciatory or tactful, a new god, a trap, a Pied Piper. The Cures have only one thing in common: with a little patience they always work. They have never been known entirely to fail. Likewise they have never been known to prevent the next outbreak. For the cycle of abundance and scarcity has a rhythm of its own, and the Cures are applied just when the plague of insects is going to abate through its own loss of momentum. -Abridged, with insects in place of voles, from C. Elton, 1924, Voles, Mice and Lemmings, with permission of Oxford University Press This book is an enquiry into the "natural rhythms" of insect abundance in forested ecosystems and into the forces that give rise to these rhythms. Forests form unique environ ments for such studies because one can find them growing under relatively natural (pri meval) conditions as well as under the domination of human actions. Also, the slow growth and turnover rates of forested ecosystems enable us to investigate insect popula tion dynamics in a plant environment that remains relatively constant or changes only slowly, this in contrast to agricultural systems, where change is often drastic and frequent.

Download or read book Environment Abstracts Annual written by and published by . This book was released on 1992 with total page 1216 pages. Available in PDF, EPUB and Kindle. Book excerpt: This database encompasses all aspects of the impact of people and technology on the environment and the effectiveness of remedial policies and technologies, featuring more than 950 journals published in the U.S. and abroad. The database also covers conference papers and proceedings, special reports from international agencies, non-governmental organizations, universities, associations and private corporations. Other materials selectively indexed include significant monographs, government studies and newsletters.

Download or read book Agrindex written by and published by . This book was released on 1992 with total page 760 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 with total page 1096 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biological Agricultural Index written by and published by . This book was released on 1988 with total page 2568 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1998 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forest and Woodland Ecology written by F. T. Last and published by . This book was released on 1981 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Ecology of Even aged Forest Plantations written by International Union of Forestry Research Organizations. Division I--Site and Silviculture and published by . This book was released on 1979 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Combating Climate Change written by National Assessment of UK Forestry and Climate Change Steering Group and published by Stationery Office Books (TSO). This book was released on 2009 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: This assessment presents a science-based analysis of the current and potential capabilities of the UK's forests and forest products to contribute to the mitigation of climate change. It shows unequivocally that: (1) a significant contribution to mitigation could be made by maintaining and increasing the rates at which CO2 is removed from the atmosphere by the UK's forests - the abatement of emissions; (2) there are other major contributions that forests and trees can make, for example in urban environments, and (3) that there are areas where substantial research is required to assess and reduce impacts and to develop the contribution of UK forestry to the mitigation of, and adaptation to, climate change. The report follows the IPCC convention of identifying key findings at the start of each chapter. Authors have also identified research priorities at the end of their respective chapters and these proposals require serious and urgent consideration. Gaps in understanding are identified and, in some instances, there is a clear requirement for more scientific evidence in order that uncertainties in the projected impacts of climate change can be reduced. The driver in the new research programmes will be the need to enhance the contribution that UK trees and woodlands can make to a low carbon economy. It is the expressed intention of the report to provide the detailed evidence required to achieve sustainable forest management under what will be complex and changing climatic circumstances.

Download or read book Breeding Pest Resistant Trees written by H. D. Gerhold and published by Elsevier. This book was released on 2013-09-24 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: Breeding Pest-Resistant Trees documents the proceedings of a N.A.T.O. and N.S.F. Advanced Study Institute on Genetic Improvement For Disease and Insect Resistance of Forest Trees held in Pennsylvania State University from August 30 to September 11, 1964. This book compiles the study and research of geneticists, pathologists, entomologists, and foresters concerned with the genetic resistance of forest trees to pests and breeding programs for disease- and insect-resistant trees. This compilation is divided into three parts. The first part discusses about the résumés of research related to forest tree pest resistance by geographic regions. Part II focuses on the reports of significant research advances in the basic knowledge of disease and insect resistance of forest trees, while Part III includes the discussion of approaches and methods for genetic improvement in pest resistance of forest trees. The topics covered include the variation and inheritance of pest resistance in forest trees; environmental effects on the host-pest relationship; review of basic knowledge of forest tree pest resistance; selection for pest resistance in wild populations; and testing and evaluating inherent pest resistance. This publication is a good source for students and individuals conducting work on the resistance of forest trees to diseases and pest insects.

Download or read book State of Europe s Forests 2011 written by and published by . This book was released on 2011 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The European Pine shoot Moth written by August Busck and published by . This book was released on 1915 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pine Beauty Moth written by J. T. Stoakley and published by . This book was released on 1979-01-01 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hazards of Butterfly Collecting written by Torben Bjørn Larsen and published by . This book was released on 2004 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecology and Biogeography of Pinus written by David M. Richardson and published by Cambridge University Press. This book was released on 2000-07-31 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive review essential for all involved in the management of natural and planted pine forests.