Download or read book The Various Contrivances by which Orchids are Fertilised by Insects written by Charles Darwin and published by . This book was released on 1895 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book On the Origin of Species Illustrated written by Charles Darwin and published by . This book was released on 2020-12-04 with total page 769 pages. Available in PDF, EPUB and Kindle. Book excerpt: On the Origin of Species (or, more completely, On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life),[3] published on 24 November 1859, is a work of scientific literature by Charles Darwin which is considered to be the foundation of evolutionary biology.[4] Darwin's book introduced the scientific theory that populations evolve over the course of generations through a process of natural selection. It presented a body of evidence that the diversity of life arose by common descent through a branching pattern of evolution. Darwin included evidence that he had gathered on the Beagle expedition in the 1830s and his subsequent findings from research, correspondence, and experimentation.

Download or read book The Student s Elements of Geology written by Sir Charles Lyell and published by . This book was released on 1871 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Introduction to Entomology Or Elements of the Natural History of Insects written by William Kirby and published by . This book was released on 1856 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Economic Importance of Insects written by Dennis S. Hill and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last few decades there has been an ever-increasing component in most BSc Zoology degree courses of cell biology, physiology and genetics, for spectacular developments have taken place in these fields. Some aspects of biotechnology are now also being included. In order to accommodate the new material, the old zoology courses were altered and the traditional two-year basis of systematics of the animal kingdom, comparative anatomy (and physiology) and evolution, was either severely trimmed or reduced and presented in an abridged form under another title. Soon after these course alterations came the swing to modular teaching in the form of a series of shorter, separate courses, some of which were optional. The entire BSc degree course took on a different appearance and several different basic themes became possible. One major result was that in the great majority of cases taxonomy and systematics were no longer taught and biology students graduated without this basic training. We field biologists did appreciate the rising interest in ecology and environ mental studies, but at the same time lamented the shortage of taxonomic skills, so that often field work was based on incorrect identifications. For years many of us with taxonomic inclinations have been bedevilled by the problem of teaching systematics to undergraduates. At a guess, maybe only 5% of students find systematics interesting. It is, however, the very basis of all studies in biology - the correct identification of the organism concerned and its relationships to others in the community.

Download or read book A Manual of Elementary Geology written by Sir Charles Lyell and published by . This book was released on 1855 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Natural History of the Swainson s Warbler written by Brooke Meanley and published by . This book was released on 1971 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pests of Crops in Warmer Climates and Their Control written by Dennis S. Hill and published by Springer Science & Business Media. This book was released on 2008-07-16 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a textbook providing basic data about the crop pests and the damage they inflict throughout the tropics and sub-tropics. Each major pest is illustrated by either a line drawing or a photograph, and sometimes the damage can also be seen. A world distribution map is provided for each species. Control measures tend to be general rather than very specific. Most of the pests are insects and mites, but some nematodes, molluscs, birds and mammals are included.

Download or read book Mimicry Aposematism and Related Phenomena written by Stanislav Komárek and published by . This book was released on 2003 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mycoplasma Diseases of Crops written by Karl Maramorosch and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Elements of Geology written by Sir Charles Lyell and published by . This book was released on 1841 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook of Pest Management in Organic Farming written by Vincenzo Vacante and published by CABI. This book was released on 2017-12-11 with total page 577 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an up-to-date and comprehensive reference covering pest management in organic farming in major crops of the world. General introductory chapters explore the management of crops to prevent pest outbreaks, plant protection tools in organic farming, and natural enemies and pest control. The remaining chapters are crop-based and discuss geographic distribution, economic importance and key pests. For each pest the fundamental aspects of its bio-ecology and the various methods of control are presented. Understanding of the scientific content is facilitated with practical advice, tables and diagrams, helping users to apply the theories and recommendations. This is an essential resource for researchers and extension workers in crop protection, integrated pest management and biocontrol, and organic farming systems.

Download or read book A Synonymic Catalogue of Homoptera written by British Museum (Natural History). Department of Zoology and published by . This book was released on 1906 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Evolutionary Ecology of Ant Plant Mutualisms written by Andrew James Beattie and published by Cambridge University Press. This book was released on 1985-11-29 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: This important work explores the natural history, experimental approach, and integration of evolutionary and ecological literature of ant-plant mutualisms.

Download or read book A Monograph of Oriental Cicadidae written by William Lucas Distant and published by Legare Street Press. This book was released on 2022-10-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book List of Hymenoptera With Descriptions and Figures of the Typical Specimens in the British Museum Vol 1 written by W. F. Kirby and published by Forgotten Books. This book was released on 2018-03-05 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from List of Hymenoptera, With Descriptions and Figures of the Typical Specimens in the British Museum, Vol. 1: Tenthredinidae and Siricidae Mr. W. F. Kirby, one of the Assistants of this Department, has prepared this first volume, and has made considerable progress with the manuscript of the second. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book Mealybugs and their Management in Agricultural and Horticultural crops written by M. Mani and published by Springer. This book was released on 2016-02-24 with total page 647 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a compilation of information on all basic aspects of mealybugs, as well as management strategies for mealybug species affecting different crop plants in different countries. It highlights the latest information on morphology, cytogenetics, taxonomy, molecular characterization, biology, damage, ecology, natural enemies, ant association, control measures, insecticide resistance and pheromones – essential aspects which will equip researchers to pursue further research on mealybugs. The book examines current trends in the management of mealybugs for a variety of agricultural and horticultural crops, forest plants and mulberry in different countries, while also addressing the negative effects of chemical control methods and presenting success stories of mealybug control that utilize their natural enemies. It offers a valuable guide for crop growers, government officials and other stakeholders in the industry, as well as researchers and students engaged in related research and development activities.