Download or read book Variability of the Honeybee Tongue Biometrically Investigated and Practical Questions Connected with the Problem of the Selection of the Honeybee written by Vladimir Vladimirovich Alpatov and published by . This book was released on 1929 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Collected Papers from the Department of Biology of the School of Hygiene and Public Health of the Johns Hopkins University written by Johns Hopkins University. School of Hygiene and Public Health. Dept. of Biology and published by . This book was released on 1928 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chiefly reprints from various scientific journals.
Download or read book Fourth International Congress of Entomology written by Karl Jordan and published by . This book was released on 1929 with total page 1186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report written by Maryland State Bee Keepers' Association and published by . This book was released on 1909 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Collected Papers from the Institute for Biological Research of the Johns Hopkins University written by and published by . This book was released on 1929 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pamphlets on Biology written by and published by . This book was released on 1922 with total page 1096 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications of written by Colorado Agricultural Experiment Station and published by . This book was released on 1932 with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book On the Improvement of Bee Races written by Vladimir Vladimirovich Alpatov and published by . This book was released on 1928 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Variation of Hooks on the Hind Wing of the Honey Bee Apis Mellifera L written by Vladimir Vladimirovich Alpatov and published by . This book was released on 1928 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Biological Bulletin written by Frank Rattray Lillie and published by . This book was released on 1928 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vol. 17, 21-105 contain Annual reports of the Marine Biological Laboratory for 1907/08-1952.
Download or read book Report of the Maryland Agricultural Society the Maryland Farm Bureau Inc and Affiliated Organizations written by Maryland Agricultural Society and published by . This book was released on 1927 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Repertorium entomologicum written by and published by . This book was released on 1930 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biogeography and Taxonomy of Honeybees written by Friedrich Ruttner and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Honeybees are as small as flies or as large as hornets, nesting in nar row cavities of trees and rocks or in the open on large limbs of trees 30 m above ground. They occur in tropical zones and in the forests of the Ural mountains, they survive seven months of winter and even longer periods of drought and heat. Historically, they lived through a extended time of stagnation in the tropics from the mid-Tertiary, but then experienced an explosive evolution during the Pleistocene, re sulting in the conquest of huge new territories and the origin of two dozen subspecies in Apis mellifera. This vast geographic and ecologic diversification of the genus Apis was accompanied by a rich morphological variation, less on the level of species than at the lowest rank, the subspecies level. Variation being exclusively of a quantitative kind at this first step of speciation, tradi tional descriptive methods of systematics proved to be unsatisfactory, and honeybee taxonomy finally ended up in a confusing multitude of inadequately described units. Effective methods of morphometric-sta tistical analysis of honeybee popUlations, centered on limited areas, have been developed during the last decades. Only the numerical characterization of the populations, together with the description of behavior, shows the true geographic variability and will end current generalizations and convenient stereotypes.
Download or read book Honeybees of Africa written by H. Randall Hepburn and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive review of the honeybees of Africa on a subspecies as well as by country basis. Includes an updated multivariate analysis of the subspecies based on the merger of the Ruttner database (Oberursel) and that of Hepburn & Radloff (Grahamstown) for nearly 20,000 bees. Special emphasis is placed on natural zones of hybridisation and introgression of different populations; seasonal cycles of development in different ecological-climatological zones of the continent; swarming, migration and absconding; and an analysis of the bee flora of the continent. The text is supplemented by tables containing quantitative data on all aspects of honeybee biology, and by continental and regional maps.
Download or read book Good beekeeping practices for sustainable apiculture written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2021-09-21 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bees provide a critical link in the maintenance of ecosystems, pollination. They play a major role in maintaining biodiversity, ensuring the survival of many plants, enhancing forest regeneration, providing sustainability and adaptation to climate change and improving the quality and quantity of agricultural production systems. In fact, close to 75 percent of the world’s crops that produce fruits and seeds for human consumption depend, at least in part, on pollinators for sustained production, yield and quality. Beekeeping, also called apiculture, refers to all activities concerned with the practical management of social bee species. These guidelines aim to provide useful information and suggestions for a sustainable management of bees around the world, which can then be applied to project development and implementation.
Download or read book Principles of Environmental Physics written by John Monteith and published by Butterworth-Heinemann. This book was released on 1990-02-15 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thoroughly revised and up-dated edition of a highly successful textbook.
Download or read book Breeding Techniques and Selection for Breeding of the Honeybee written by Friedrich Ruttner and published by . This book was released on 1988 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
