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Inbreeding And Outbreeding Their Genetic And Sociological Significance
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Book Synopsis Inbreeding and Outbreeding by : Edward M East
Download or read book Inbreeding and Outbreeding written by Edward M East and published by Legare Street Press. This book was released on 2022-10-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Book Synopsis Inbreeding and Outbreeding by : Edward Murray East
Download or read book Inbreeding and Outbreeding written by Edward Murray East and published by . This book was released on 1919 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Inbreeding and Outbreeding; Their Genetic and Sociological Significance by : Edward M. East
Download or read book Inbreeding and Outbreeding; Their Genetic and Sociological Significance written by Edward M. East and published by Holloway Press. This book was released on 2007-10 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: PREFACE. THE Author of this very practical treatise on Scotch Loch - Fishing desires clearly that it may be of use to all who had it. He does not pretend to have written anything new, but to have attempted to put what he has to say in as readable a form as possible. Everything in the way of the history and habits of fish has been studiously avoided, and technicalities have been used as sparingly as possible. The writing of this book has afforded him pleasure in his leisure moments, and that pleasure would be much increased if he knew that the perusal of it would create any bond of sympathy between himself and the angling community in general. This section is interleaved with blank shects for the readers notes. The Author need hardly say that any suggestions addressed to the case of the publishers, will meet with consideration in a future edition. We do not pretend to write or enlarge upon a new subject. Much has been said and written-and well said and written too on the art of fishing but loch-fishing has been rather looked upon as a second-rate performance, and to dispel this idea is one of the objects for which this present treatise has been written. Far be it from us to say anything against fishing, lawfully practised in any form but many pent up in our large towns will bear us out when me say that, on the whole, a days loch-fishing is the most convenient. One great matter is, that the loch-fisher is depend- ent on nothing but enough wind to curl the water, -and on a large loch it is very seldom that a dead calm prevails all day, -and can make his arrangements for a day, weeks beforehand whereas the stream- fisher is dependent for a good take on the state of the water and however pleasant and easy it may be for one living near the banks of a good trout stream or river, it is quite another matter to arrange for a days river-fishing, if one is looking forward to a holiday at a date some weeks ahead. Providence may favour the expectant angler with a good day, and the water in order but experience has taught most of us that the good days are in the minority, and that, as is the case with our rapid running streams, -such as many of our northern streams are, -the water is either too large or too small, unless, as previously remarked, you live near at hand, and can catch it at its best. A common belief in regard to loch-fishing is, that the tyro and the experienced angler have nearly the same chance in fishing, -the one from the stern and the other from the bow of the same boat. Of all the absurd beliefs as to loch-fishing, this is one of the most absurd. Try it. Give the tyro either end of the boat he likes give him a cast of ally flies he may fancy, or even a cast similar to those which a crack may be using and if he catches one for every three the other has, he may consider himself very lucky. Of course there are lochs where the fish are not abundant, and a beginner may come across as many as an older fisher but we speak of lochs where there are fish to be caught, and where each has a fair chance. Again, it is said that the boatman has as much to do with catching trout in a loch as the angler. Well, we dont deny that. In an untried loch it is necessary to have the guidance of a good boatman but the same argument holds good as to stream-fishing...
Book Synopsis The Natural History of Inbreeding and Outbreeding by : Nancy Wilmsen Thornhill
Download or read book The Natural History of Inbreeding and Outbreeding written by Nancy Wilmsen Thornhill and published by University of Chicago Press. This book was released on 1993-08-15 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inbreeding, the mating of close kin, and outbreeding, the mating of distant relatives or unrelated organisms, have long been important subjects to evolutionary biologists. Inbreeding reduces genetic diversity in a population, increasing the likelihood that genetic defects will become widespread and deprive a population of the diversity it may need to cope with its environment. Most plants and animals have evolved behavioral and morphological mechanisms to avoid inbreeding. However, today many endangered species exist only in small, very isolated populations where inbreeding is unavoidable, so it has become a concern for conservationists. In this volume, twenty-six experts in evolution, behavior, and genetics examine the causes and consequences of inbreeding. The authors ask whether inbreeding is as problematic as biologists have thought, under what ecological conditions inbreeding occurs, and whether organisms that inbreed have mechanisms to dampen the anticipated problems of reduced genetic variation. The studies, including theoretical and empirical work on wild and captive populations, demonstrate that many plants and animals inbreed to a greater extent than biologists have thought, with variable effects on individual fitness. Graduate students and researchers in evolutionary biology, animal behavior, ecology, and conservation biology will welcome this wide-ranging collection.
Book Synopsis Inbreeding and Outbreeding; Their Genetic and Sociological Significance by : Edward Murray East
Download or read book Inbreeding and Outbreeding; Their Genetic and Sociological Significance written by Edward Murray East and published by Theclassics.Us. This book was released on 2013-09 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1919 edition. Excerpt: ...starts off poorly, as shown in the accompanying illustration (Fig. 33), but soon catches up and passes the second generation. At maturity the second generation is shorter and less productive, although it has a much greater variability. The third generation from selfed plants of this particular cross has been grown, and there is still further loss of the stimulation which is at its maximum in the first generation. On continued inbreeding these families presumably would exhibit a continuation of the same course of reduction in size, vigor and variability shown in the original inbreeding experiment, until homozygosity was again 100 78 50 29 Sronth Curres of Two Inbred Strains ef Maize and Their Fj and F2 Hybrids. 30 40 50 Gf 7 8 Wumlaer of Days from Planting 9 33.--Qraphs showing growth curves of two inbred strains'of maiie and thier first and second generation hybrids. reached. The resulting inbred strains would have about the same amount of development as the original inbred strains, but would probably differ from them in appearance through the possession of different combinations of characters. The principal point is that the vigor and size lost by inbreeding are immediately restored by crossing, but lost again on further inbreeding. It is a transitory effect, for the most part, impossible of fixation. Increases in yield of grain are also frequently obtained when ordinary commercial varieties of maize are crossed. Earely are the increases greater than 10 per cent., however, and even this is more commonly to be expected when varieties of somewhat different type are used; for example, flint and dent. Most varieties of corn are now so widely crossed and furthermore are so near the limit of production that great advances are not...
Book Synopsis Inbreeding and Outbreeding by : Edward Murray East
Download or read book Inbreeding and Outbreeding written by Edward Murray East and published by . This book was released on 1919 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Inbreeding and Outbreeding; Their Genetic and Sociological Significance by : Donald Forsha Jones
Download or read book Inbreeding and Outbreeding; Their Genetic and Sociological Significance written by Donald Forsha Jones and published by Palala Press. This book was released on 2015-09-07 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Book Synopsis Inbreeding and Outbreeding; Their Genetic and Sociological Significance by : Edward M 1879-1938 East
Download or read book Inbreeding and Outbreeding; Their Genetic and Sociological Significance written by Edward M 1879-1938 East and published by Palala Press. This book was released on 2015-09-08 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Book Synopsis The American Journal of Sociology by : Albion W. Small
Download or read book The American Journal of Sociology written by Albion W. Small and published by . This book was released on 1920 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt: Established in 1895 as the first U.S. scholarly journal in its field, AJS remains a leading voice for analysis and research in the social sciences, presenting work on the theory, methods, practice, and history of sociology. AJS also seeks the application of perspectives from other social sciences and publishes papers by psychologists, anthropologists, statisticians, economists, educators, historians, and political scientists.
Book Synopsis Animal Genetics: an Introduction to the Science of Animal Breeding by : Francis Albert Eley Crew
Download or read book Animal Genetics: an Introduction to the Science of Animal Breeding written by Francis Albert Eley Crew and published by . This book was released on 1925 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Psychological Index by : Howard Crosby Warren
Download or read book The Psychological Index written by Howard Crosby Warren and published by . This book was released on 1918 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications written by and published by . This book was released on 1923 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Defending the Master Race by : Jonathan Peter Spiro
Download or read book Defending the Master Race written by Jonathan Peter Spiro and published by UPNE. This book was released on 2009 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: astonishing feat of detective work reveals how a founder of the Bronx Zoo wound up writing. The passing of the Great Race (1916), the book that the Nazis later used to justify the exterminationist policies of the Third Reich." --Book Jacket.
Book Synopsis A Bibliography of Plant Genetics by :
Download or read book A Bibliography of Plant Genetics written by and published by . This book was released on 1934 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Foundations of Biology by : Lorande Loss Woodruff
Download or read book Foundations of Biology written by Lorande Loss Woodruff and published by . This book was released on 1927 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Politics of Making Kinship by : Erdmute Alber
Download or read book The Politics of Making Kinship written by Erdmute Alber and published by Berghahn Books. This book was released on 2022-12-09 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The long tradition of Western political thought included kinship in models of public order, but the social sciences excised it from theories of the state, public sphere, and democratic order. Kinship has, however, neither completely disappeared from the political cultures of the West nor played the determining social and political role ascribed to it elsewhere. Exploring the issues that arise once the divide between kinship and politics is no longer taken for granted, The Politics of Making Kinship demonstrates how political processes have shaped concepts of kinship over time and, conversely, how political projects have been shaped by specific understandings, idioms and uses of kinship. Taking vantage points from the post-Roman era to early modernity, and from colonial imperialism to the fall of the Berlin Wall and beyond this international set of scholars place kinship centerstage and reintegrate it with political theory.
Book Synopsis Guano and the Opening of the Pacific World by : Gregory T. Cushman
Download or read book Guano and the Opening of the Pacific World written by Gregory T. Cushman and published by Cambridge University Press. This book was released on 2013-03-25 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: For centuries, bird guano has played a pivotal role in the agricultural and economic development of Latin America, East Asia and Oceania. As their populations ballooned during the Industrial Revolution, North American and European powers came to depend on this unique resource as well, helping them meet their ever-increasing farming needs. This book explores how the production and commodification of guano has shaped the modern Pacific Basin and the world's relationship to the region. Marrying traditional methods of historical analysis with a broad interdisciplinary approach, Gregory T. Cushman casts this once little-known commodity as an engine of Western industrialization, offering new insight into uniquely modern developments such as environmental consciousness and conservation movements; the ascendance of science, technology and expertise; international relations; and world war.