Download or read book The Hymenoptera of Minnesota written by Frederic Leonard Washburn and published by . This book was released on 1919 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report of the State Entomologist of Minnesota to the Governor for the Year written by Minnesota. State Entomologist and published by . This book was released on 1916 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin written by United States National Museum and published by . This book was released on 1928 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genesis of the Hymenoptera and the phases of their evolution written by Sergei Ivanovich Malyshev and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: The late Professor S. I. Malyshev, who died from a cerebral haemorrhage on 9 May 1967 at the age of 83 in the train while travelling to field work, was one of the foremost European students of the Hymenoptera, in particular of the habits of solitary bees, a subject on which he had published many papers since 1908, mostly in Russian. In 1935 he published an important paper on part of his work, and I helped to edit the publication, which was in English. A few years ago some of my friends in California asked me if I could not persuade him to complete his early paper on solitary bees, offering if necessary to arrange for a translation. When I wrote to Professor Malyshev making this suggestion he no longer had the health to produce a new work, but he sent me a copy of his recent book on the evolution of the Hymenoptera which he thought might be worth trans lating. Sir Boris Uvarov was good enough to translate for me the chapter and section headings, and it seemed to both of us that a lot of new ground was covered in a highly original way. The explanation of the changes in behaviour that must have taken place when the simple, plant-feeding saw flies developed into highly specialized parasites or into industrious, food collecting, social insects such as the ants, bees, and wasps can well be regarded as one of the major challenges to zoologists.
Download or read book Hymenoptera of the World written by Canada. Agriculture Canada. Research Branch and published by Canadian Government Publishing. This book was released on 1993 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication is the result of a course on identification of Hymenoptera given three times since 1985 at the Centre for Land and Biological Resources Research. The considerable interest in these courses indicated the need for a comprehensive identification guide to all extant families of Hymenoptera. The main emphasis is on family identification using the keys, which are complemented by family sketches. The sketches include a taxonomic diagnosis to supplement the keys, a summary of the biology, the size and distribution, and important literature references.
Download or read book Status of Pollinators in North America written by National Research Council and published by National Academies Press. This book was released on 2007-05-13 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pollinators-insects, birds, bats, and other animals that carry pollen from the male to the female parts of flowers for plant reproduction-are an essential part of natural and agricultural ecosystems throughout North America. For example, most fruit, vegetable, and seed crops and some crops that provide fiber, drugs, and fuel depend on animals for pollination. This report provides evidence for the decline of some pollinator species in North America, including America's most important managed pollinator, the honey bee, as well as some butterflies, bats, and hummingbirds. For most managed and wild pollinator species, however, population trends have not been assessed because populations have not been monitored over time. In addition, for wild species with demonstrated declines, it is often difficult to determine the causes or consequences of their decline. This report outlines priorities for research and monitoring that are needed to improve information on the status of pollinators and establishes a framework for conservation and restoration of pollinator species and communities.
Download or read book Pollinators of Native Plants written by Heather Holm and published by . This book was released on 2014-02-03 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This comprehensive, essential book profiles over 65 perennial native plant species of the Midwest, Great Lakes region, Northeast and southern Canada plus the pollinators, beneficial insects and flower visitors the plants attract ... Readers learn to attract and identify pollinators and beneficial insects as well as customize their landscape planting for a particular type of pollinator with native plants. The book includes information on pollination, types of pollinators, pollinator conservation as well as pollinator landscape plans."--
Download or read book Report written by Minnesota. State Entomologist and published by . This book was released on 1914 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Supplement I written by Clyde E. Morgan and published by . This book was released on 1977 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Note written by and published by . This book was released on 1920 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological and Taxonomic Investigations on the Mutillid Wasps written by Clarence Eugene Mickel and published by . This book was released on 1928 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: As an outgrowth of earlier work done on the genital structures of male Mutillid wasps, the author's conviction that the biology of insects is as much a factor in their taxonomy and phylogeny as morphology led him to assemble all the knowledge regarding their biology and to carry on some minor researches that were included in Part 1 of this bulletin. He reviewed 630 references, listed in the bibliography and undertook a study of the genotypes of the family, reporting the results in Part 2. This bulletin provides descriptions of multiple specimens examined.
Download or read book Insects of the Great Lakes Region written by Gary A. Dunn and published by University of Michigan Press. This book was released on 1996-07-15 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most comprehensive guide to insects in the Great Lakes region
Download or read book Pamphlets on Biology written by and published by . This book was released on 1923 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beekeeping From Science to Practice written by Russell H. Vreeland and published by Springer. This book was released on 2017-09-19 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book will help beekeepers understand the fundamentals of beekeeping science. Written in plain and accessible language by actual researchers, it should be part of every beekeeper’s library. The respective chapters not only present raw data; they also explain how to read and understand the most common figures. With topics ranging from honeybee nutrition to strains of Varroa resistant bees, from the effects of pesticide chemicals to understanding diseases, and including a discussion of venom allergies, the book provides essential “knowhow” that beekeepers will benefit from every time they inspect their hives. Further, each chapter ends with the author explaining how beekeepers can (or cannot) directly utilize the information to enhance their beekeeping operation. The text is structured to facilitate ease of use, with each author addressing the same four issues: 1) What are the specific purposes or goals of these experiments? Or more simply: what have these studies taught us? 2) How should a non-scientist read the data generated? 3) What are the key points in relation to practicing beekeepers’ goals? 4) How can the data or techniques discussed be applied by beekeepers in their own apiaries? This approach allows readers to look up specific information quickly, understand it and even put it to use without having to read entire chapters. Further, the chapters are highly readable and concise. As such, the book offers a valuable guide and faithful companion for all beekeepers, one they can use day in and day out.
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1966 with total page 1542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pesticides Documentation Bulletin written by and published by . This book was released on 1965-11 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt:
