Key to Nearctic Parasites of the Genus Rhyacionia, with Species Annotations PDF Download
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Author: Harry O. Yates
Publisher:
ISBN:
Category : European pine shoot moth
Languages : en
Pages : 132
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Book Description
Author: Harry O. Yates
Publisher:
ISBN:
Category : European pine shoot moth
Languages : en
Pages : 132
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Book Description
Author: Harold A. Mooney
Publisher: Springer Science & Business Media
ISBN: 1461249880
Category : Science
Languages : en
Pages : 330
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Book Description
The diversity of the earth's climates superimposed upon a complex configuration of physical features has provided the conditions for the evolution of a remarkable array of living things which are linked together into complex ecosystems. The kinds of organisms comprising the ecosystems of the world, and the nature of their interactions, have constantly changed through time due to coevolutionary interactions along with the effects of a continually changing physical environ ment. In recent evolutionary time there has been a dramatic and ever-accelerating rate of change in the configuration of these ecosystems because of the increasing influence of human beings. These changes range from subtle modifications caused by anthropogenically induced alterations in atmospheric properties to the total destruction of ecosystems. Many of these modifications have provided the fuel, food, and fiber which have allowed the expansion of human populations. Unfortunately, there have been many unanticipated changes which accompanied these modifications which have had effects detrimental to human welfare in cluding substantial changes in water and air quality. For example, the use of high-sulfur coal to produce energy in parts of North America is altering the properties of freshwater lakes and forests because of acidification.
Author: Martin Jacobson
Publisher: Elsevier
ISBN: 0323152414
Category : Science
Languages : en
Pages : 395
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Book Description
Insect Sex Pheromones is a revised and expanded edition of the book ""Insect Sex Attractants"" and covers greater discoveries in the field of sex pheromones. It is discovered that many sex pheromones are sexually excitatory rather than attractive. This discovery prompted the substitution of the more accurate and encompassing term ""pheromones"" for the term ""attractants"" in the title of this edition. Composed of 13 chapters, this book has chapters that cover the occurrence in female and production in male of sex pheromones in various insect species. The insect orders considered include Acarina, Orthoptera, Hemiptera, Homoptera, Diptera, Isoptera, Neuroptera, Siphonaptera, Coleoptera, Hymenoptera, Lepidoptera, Trichoptera, and Mecoptera. The following chapter discusses pheromones produced by one sex that lure to assemble for mating. This book goes on discussing the anatomy and physiology of scent glands of male and female insects; the attractant perception mechanism; and the behavioral and electrophysiological responses of insects to sex pheromones. Other chapters are devoted to the influence of several factors on the presence of chemical sex attraction or excitation in any insect. The concluding chapters deal with the collection, isolation, identification, synthesis, and analysis of sex pheromones. This book will greatly appeal to research and economic entomologists, insect physiologists, chemists, and ecologists.
Author: R. G. Van Driesche
Publisher:
ISBN:
Category : Arthropod pests
Languages : en
Pages : 268
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Book Description
Author: Pacific Northwest Forest and Range Experiment Station (Portland, Or.).
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 20
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Book Description
Author: C. Wayne Berisford
Publisher:
ISBN:
Category : Nantucket pine tip moth
Languages : en
Pages : 84
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Book Description
Author: Robert Ford DeBoo
Publisher:
ISBN:
Category : Conifers
Languages : en
Pages : 416
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 1018
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Book Description
Author: A.F. Kydonieus
Publisher: CRC Press
ISBN: 1351090518
Category : Science
Languages : en
Pages : 392
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Book Description
This book documents the latest accomplishments and technology relating to pheromone use. It contains listing of pheromones which provides an up-to-date background of material to help bring both the advanced and the new worker abreast of the rapidly growing pheromone field.
Author:
Publisher:
ISBN:
Category : Insect pests
Languages : en
Pages : 522
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Book Description
