Download or read book Journal of agricultural research in Iceland written by and published by . This book was released on 1984 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Agricultural Research in Iceland written by and published by . This book was released on 1969 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Soils of Iceland written by Olafur Arnalds and published by Springer. This book was released on 2015-01-06 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this new volume in the World Soil series, the various types of Icelandic soils, their different characteristics, their formation, degradation and erosion are reviewed. At the same time, the book also deals with the agriculture and land use in general to give a complete view of Icelandic soils. The first part details the natural parameters such as the climate and the geography of Iceland. It also explains Icelandic geology, which is the major parameter controlling the soil formation in this country. The author describes the formation of Iceland, the main volcanic systems, central volcanoes, tephra production and its influence on the soils. Explanations on rocks, glaciers, rivers and other main geologic features are also given. The book continues with a description of the Icelandic geomorphology, giving insights on the main surface types, frost, cryoturbation and other cryogenic features. Then it details the different types of soils, their formation and main features, comparing the Icelandic soils to other soils elsewhere in the world. Erosion and land degradation are then reviewed, including the exceptionally active wind erosion and dust production. Finally, it gives an insight on land use, agriculture and vegetation types. All this accompanied by the most amazing photos to illustrate the great diversity of Icelandic Soil.
Download or read book Journal of Agricultural Research written by and published by . This book was released on 1925 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Serials Currently Received by the National Agricultural Library a Keyword Index written by National Agricultural Library (U.S.) and published by . This book was released on 1974 with total page 1338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of Journals Indexed by the National Agricultural Library 1974 76 written by National Agricultural Library (U.S.) and published by . This book was released on 1978 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Restoration Ecology and Sustainable Development written by Krystyna M. Urbanska and published by Cambridge University Press. This book was released on 1997 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Details the scientific basis for the reconstruction of damaged ecosystems.
Download or read book Serials Currently Received by the National Agricultural Library 1975 written by National Agricultural Library (U.S.) and published by . This book was released on 1976 with total page 1392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetics of Reproduction in Sheep written by R.B. Land and published by Elsevier. This book was released on 2013-10-22 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetics of Reproduction in Sheep is a compilation of papers that are concerned with the study and application of genetics to the reproduction in sheep. The book is divided into six parts, grouping the papers according to topic. The main topics include genetic variation and selection; the inheritance and the effects of the Booroola gene; genetic strategies for single genes; physiology of genetic variation; the physiological criteria of genetic merit; and the national requirement and systems of husbandry. The text is recommended for those involved with raising sheep and plan to apply genetics in their reproduction, as well as for geneticists who wish to conduct studies on how their field is applied to sheep reproduction.
Download or read book New Zealand Journal of Agricultural Research written by and published by . This book was released on 1989 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book B v sindi written by and published by . This book was released on 1997 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atlantic Salmon written by D. Mills and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: At present fishing for salmon in Norwegian home water is carried out with drift nets, bag nets, bend nets, lift nets and stake nets in the sea, and mainly by rods in the rivers. Catch statistics have been collected since 1876, but reliability of the statistics is questionable. The rates of exploitation on many Norwegian salmon stocks are very high, and data are presented and discussed for River Laerdal, River Eira and River Imsa stocks. As a result of this heavy exploitation with nets, the frequency of net-marked salmon entering rivers is high especially for griIse, although most net-marked salmon are only slightly damaged. It is suggested that mortality of salmon that are net-damaged hear or in brackish water is relatively small compared with salmon that escape from nets on the high seas. Some possible effects of selective fishing are also discussed. 159 Status of Exploitation of Atlantic Salmon in Norway REFERENCES Anon. (l985a) Salmon and sea trout fisheries 1984. Central Bureau of Statistics of Norway, Oslo - Kongsvinger, 96 pp. (in Norwegian with English summary) Anon. (I985b) Report of meeting of working group on North Atlantic salmon. ICES C. M. 1985/ Assess, 11, 67 pp. Angelsen, K. K. and Holm, M. (I978) Rapport om garnforslllk med laks, Fisk og Fiskestell, . ; 15-17. (in Norwegian) Berg, M. , Abrahamsen, B. and Berg, O. K. (I986) Spawning of injured compared to uninjured female Atlantic salmon, Salmo salar L. Aquaculture and Fisheries Management, l.
Download or read book New Zealand Journal of Agricultural Research written by and published by . This book was released on 1958-03 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Land Degradation written by A.J. Conacher and published by Springer Science & Business Media. This book was released on 2013-12-11 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains selected contributions from the Sixth Meeting of the International Geographical Union's Commission on Land Degradation and Desertification, held in Perth, Australia, in September 1999. Collectively, these contributions explicitly seek to understand not only the mechanisms responsible for the problem of land degradation but their social and economic implications, the means of overcoming the problems, and the policy instruments whereby remedial measures may be implemented. This breadth of approach is both distinctive and essential if the problems are to be tackled effectively. The authorship comprises of specialists (mostly geographers) from universities, research organizations, and government agencies, who provide a truly international perspective with contributions from Iceland to Australia and from the USA to Japan. Audience: The book presents current research findings which will be of particular benefit to professionals and practitioners, as well as researchers and tertiary-level educationalists who are involved with land degradation.
Download or read book Animal Personalities written by Claudio Carere and published by University of Chicago Press. This book was released on 2013-03-07 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ask anyone who has owned a pet and they’ll assure you that, yes, animals have personalities. And science is beginning to agree. Researchers have demonstrated that both domesticated and nondomesticated animals—from invertebrates to monkeys and apes—behave in consistently different ways, meeting the criteria for what many define as personality. But why the differences, and how are personalities shaped by genes and environment? How did they evolve? The essays in Animal Personalities reveal that there is much to learn from our furred and feathered friends. The study of animal personality is one of the fastest-growing areas of research in behavioral and evolutionary biology. Here Claudio Carere and Dario Maestripieri, along with a host of scholars from fields as diverse as ecology, genetics, endocrinology, neuroscience, and psychology, provide a comprehensive overview of the current research on animal personality. Grouped into thematic sections, chapters approach the topic with empirical and theoretical material and show that to fully understand why personality exists, we must consider the evolutionary processes that give rise to personality, the ecological correlates of personality differences, and the physiological mechanisms underlying personality variation.
Download or read book Current Topics in Phylogenetics and Phylogeography of Terrestrial and Aquatic Systems written by Kesara Anamthawat-Jónsson and published by BoD – Books on Demand. This book was released on 2012-03-07 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mapping phylogenetics on geographical scales is one of the most important scientific aspects of bioscience research. Changes in the environment have evidently shaped the geographical distribution of organisms on land and in the oceans seen today. Overexploitation of key species has caused not only changes in the distribution and diversity of organisms and composition of the ecosystems, but is also leading to species extinction at accelerating rates. It is our duty as scientists to find ways of protecting the species endangered with extinction and preventing other species from entering the endangered stage. To manage this effectively, we need to map species distribution, understand life-history traits, define genetic variation within species and populations, identify lineages - especially at the molecular level - and correlate the historical, phylogenetic components with the spatial distributions of gene lineages. In this book, phylogenetics and phylogeography of a diverse range of organisms are reviewed: from microorganisms causing gastroenteritis in humans, fishes in the Southwest Atlantic Ocean and spiders of the western Indian Ocean, to mountain tapirs in South America and birch tree species of the Arctic tundra.
Download or read book Evaluation of the Energy Value of Feeds for Ruminants written by and published by Nordic Council of Ministers. This book was released on 1994 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
