Download or read book Population Structure Genetics and Taxonomy of Aphids and Thysanoptera written by Jaroslav Holman and published by . This book was released on 1987 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aphid Ecology An optimization approach written by A.F.G. Dixon and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition covers the evolution of aphids and their development in relation to specific plants, thoroughly revised and expanded since the first highly successful edition. Increasing knowledge of aphids has revealed that they are ideal organisms to use when studying many topical ecological issues.
Download or read book Biological Resources and Migration written by Dietrich Werner and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: Migration of humans and animals, plants and even microbes is a ubiquitous global phenomenon. This book covers all forms of migration - plant, microbial, animal or human - and their mutual impact in detail. The contributions in this book are the result of an innovative International Conference and OECD Workshop aimed at triggering off the interdisciplinary dialogue between natural scientists and socioeconomists.
Download or read book Report written by Rothamsted Experimental Station and published by . This book was released on 1985 with total page 928 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reports for 1908-1929 include Supplement to the "Guide to the experimental plots".
Download or read book Iranian Entomology An Introduction written by Cyrus Abivardi and published by Springer Science & Business Media. This book was released on 2001-07-03 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: This major work presents the first comprehensive survey on entomological studies in Iran from prehistoric periods up to modern times. This concise collection and excerpts from the literature are complemented by over 130 color figures of superb quality showing insects and their habitats. Volume 1 Faunal Studies concentrates on the systematic taxonomy of Iranian insects. It also lists all members of Rhopalocera (butterflies) and four families of Heterocera (moths). An introductory chapter is reserved for basic information on the geography, vegetation and climate of Iran. Volume 2 Applied Entomology starts with a chapter on the history of entomology in Iran until current times. Several chapters cover agricultural aspects of entomology, such as destructive insects, biological control or cultivars exhibiting resistance to insect pests. Other chapters are on medical entomology, e.g. mosquito-, sandfly- or flea-borne diseases and human myiasis.
Download or read book Aphids on the World s Herbaceous Plants and Shrubs 2 Volume Set written by R. L. Blackman and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aphids are well-known as pests of agriculture, horticulture and forestry, but they are also one of the most biologically interesting groups of plant-feeding insects, and thus have attracted the attention of biologists in many research fields such as ecology, biodiversity, physiology, behaviour and genetics. Following the successful format of previous books on the world's aphids by the same authors, these two volumes provide a comprehensive species-by-species account of the aphids on the world's herbaceous plants and shrubs. They can be used not only as an identification guide and information source for entomologists and taxonomists throughout the world, but also as a unique database for studies of biodiversity and insect-plant relationships. In all, 3120 aphid species in 340 genera are covered, feeding on 2150 genera of host plants. Volume 1 features comprehensive host lists and keys to the aphids colonizing each plant genus. This information is supplemented in Volume 2 by a systematic account of all the aphid species, which provides information on their appearance in life, host range, geographical distribution and life cycles. There are 357 original line drawings, 252 photographs of slide-mounted specimens and 1000 references. Aphids on the World's Herbaceous Plants and Shrubs is the culmination of many years of work by two leading specialists and provides an essential research tool and standard reference work for entomologists in universities and research institutes throughout the world.
Download or read book Insect Populations In theory and in practice written by Jack P. Dempster and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt: Insects are by far the largest group of animals on Earth, with over a million described species, and they occupy a wide range of ecological niches - they may be herbivores, predators, parasites or decomposers. Some are of particular economic importance as pests of agriculture and forestry, as vectors of animal and human disease, or as species of interest to wildlife conservation. Thus an understanding of the processes determining their numbers is of considerable practical value. Entomologists have played a leading role in developing a theoretical basis to Population Ecology, but we still do not have adequate experimental and observational proof for many of the theoretical ideas that have been proposed. As a result, the subject has been beset with arguments for more than 50 years. This volume attempts to reconcile some of these controversies, while also reviewing the current state of our knowledge. The editors have drawn together an international list of contributors whose views reflect a range of opinions on how natural populations are stabilised. They have succeeded in producing a book that both covers the main alternative views in population theory and contains some of the best recent field studies of insect populations. This Royal Entomological Society Symposium volume will be of great interest to all entomologists and ecologists, particularly those who wish to know more about Population Dynamics.
Download or read book Ecology of Agricultural Pests written by W.O.C. Symondson and published by Springer Science & Business Media. This book was released on 1996-06-30 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in biochemical techniques are revolutionizing the study of invertebrate ecology. Their application to pest problems is generating detailed information on the population genetics of pests, pest-predator relationships and interactions between pests and their environment.
Download or read book The Zoological Record written by and published by . This book was released on 1961 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Aspects of Chromosome Structure and Function written by R.C. Sobti and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: It was at the end of the 19th century that a Swiss biologist, Karl Nageli first proposed the existence of hereditary organelles that carried information from parent to offspring. Ensuing decades experienced vigorous studies that led to the development of discovery that chromosomes are indeed the carriers of genetic information. Subsequent studies, especially by Morgan and Bridges, established unequivocally the chromosome theory of inheritance. Today, the structure of chromosome is well established. At the physical level, eukaryotic chromosomes are composed of a single, linear, double helix of DNA. The elementary helical structure involves nucleosomes, comprised of histones around which the DNA is wrapped. A hierarchy of higher order of chromosomal architecture may possibly be responsible for the regulation of gene helical structures expression. The localized condensations of DNA constitute chromomeres. Uncoiled structures sometimes extending from chromomeres, which form loops, is the result of discontinuities in the regular coiling of the DNA in the chromosome.
Download or read book World Perspectives on Barley Yellow Dwarf written by Peter A. Burnett and published by CIMMYT. This book was released on 1990 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Evolution of Social Behavior in Insects and Arachnids written by Jae C. Choe and published by Cambridge University Press. This book was released on 1997 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'Social' insects and arachnids exhibit complex forms of behavior that involve cooperation in building a nest, defending against attackers or rearing offspring. This book is a comprehensive, up-to-date guide to sociality and its evolution in a wide range of taxa.
Download or read book Advances in Hemipterology written by Alexi Popov and published by PenSoft Publishers LTD. This book was released on 2013-07-30 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hemiptera (true bugs, cicadas, leafhoppers, planthoppers, aphids, scale insects, psyllids) are among the most numerous and diverse in morphology, biology, ecology and behavior insect groups, with vital ecosystems. Many of them are important in the base of the food chain. Others have economic significance as pests on fruit trees, vines, greenhouse crops and other agrocoenoses. Invasive alien species are the second most important cause of biodiversity loss in Europe and many of them belong to Hemiptera. This special issue of ZooKeys includes a collection of 26 papers presented during the 6th European Hemiptera Congress, which was held at Blagoevgrad, Bulgaria from 25th to 29th June 2012. Leading Hemiptera experts from 26 countries in four continents took part at the congress. The discussions were focused on general aspects of Hemiptera studies treating faunistics and biogeography of the Mediterranean Basin and Europe more generally as well as on taxonomy and phylogeny of Cicadomorpha, Fulgoromorpha, Heteroptera, Aphidoidea and Psylloidea; complex application of ecological, acoustic, genetic, palaeontological and behavioral methods; applied research and pest control. This special issue will be of great value for anyone interested in the biology of Hemiptera in general and of certain groups in particular, stimulating future research on this interesting group of insects.
Download or read book Thrips Biology and Management written by Bruce L. Parker and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thrips (fhysanoptera) are very small insects, widespread throughout the world with a preponderance of tropical species, many temperate ones, and even a few living in arctic regions. Of the approximately 5,000 species so far identified, only a few hundred are crop pests, causing serious damage or transmitting diseases to growing crops and harvestable produce in most countries. Their fringed wings confer a natural ability to disperse widely, blown by the wind. Their minute size and cryptic behavior make them difficult to detect either in the field or in fresh vegetation transported during international trade of vegetables, fruit and ornamental flowers. Many species have now spread from their original natural habitats and hosts to favorable new environments where they often reproduce rapidly to develop intense damaging infestations that are costly to control. Over the past decade there have been several spectacular examples of this. The western flower thrips has expanded its range from the North American continent to Europe, Australia and South Africa. Thrips palmi has spread from its presumed origin, the island of Sumatra, to the coast of Florida, and threatens to extend its distribution throughout North and South America. Pear thrips, a known orchard pest of Europe and the western United States and Canada has recently become a major defoliator of hardwood trees in Vermont and the neighboring states. Local outbreaks of other species are also becoming problems in field and glasshouse crops as the effectiveness of insecticides against them decline.
Download or read book Report Rothamsted Experimental Station written by Rothamsted Experimental Station and published by . This book was released on 1988 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Zoology written by and published by . This book was released on 2002 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Entomologist written by and published by . This book was released on 1991 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
