Download or read book Wildlife Abstracts written by U.S. Fish and Wildlife Service and published by . This book was released on 1976 with total page 826 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ecology of Reproduction in Wild and Domestic Mammals written by R.M. Sadler and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: 49 about six months ... to well over a year. If there is only one part of the year that is favourable, such as spring and early summer in the temperate climates, then each species must make an evolutionary choice, so to speak, as to which parts of the reproductive cycle - conception, gestation, lactation or weanin- must be protected and which can come in less favourable times of the year. The rhesus and langur monkeys of northern India give birth during the time of year when temperatures are hottest and wells and tanks are often dry. However, gestation and the later months oflactation come during the monsoon season when food and water are abundant. In contrast the east African baboons give birth at the beginning of the small rains, and gestation and the late part of lactation occur during the six months dry season. Whether any pattern of relationship will be found to hold true for other species of primates is still not clear. It may be that a wide variety of patterns have evolved depending on the lengths of gestation and lactation and the particular ecological complex in which each species or even subspecies lives' (pages 503, 504).
Download or read book Asdell s Patterns of Mammalian Reproduction written by Virginia Douglass Hayssen and published by Cornell University Press. This book was released on 1993 with total page 1036 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the appearance of the second edition of Sydney A. Asdell's widely used Patterns of Mammalian Reproduction in 1964, the field of reproductive physiology has expanded dramatically. Accordingly, this revision adopts a different structure from previous editions, substituting empirical delineations for physiological interpretations. With the emphases now on a presentation of the published facts of mammalian reproduction, it provides a thorough compilation of what is known about the basic reproductive biology of each of the 4300 mammalian species.To gather information, the authors examined more than 20,000 publications, dating up to 1992. They used primary sources as much as possible, supplementing them with English translations of Russian, Finnish, Chinese, and Japanese journals. The data are presented in taxonomic order. Each familial account summarizes the pattern of reproduction for the family and provides lists of citations arranged by topic of the literature on the endocrinology, reproductive anatomy, and reproductive physiology of the family. Following each account is a tabular listing of species-specific data for neonatal mass and size, weaning mass and size, litter size, age at sexual maturity, estrous cycle length, gestation length, lactation length, number of litters per year, and seasonality of reproduction. For each of these reproductive variables, the range of data gleaned from the literature is given, together with the source of each value listed.Virginia Hayssen is Assistant Professor of Biology at Smith College. Ari Van Tienhoven is Professor of Animal Physiology, Emeritus, at Cornell University. Ans Van Tienhoven assisted in the compilation of data for the book.
Download or read book Voles Microtinae written by Gromov and published by BRILL. This book was released on 2023-09-25 with total page 751 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph deals with the subfamily of voles (Microtinae) -- the group of rodents which are of great practical importance as pests of agricultural crops as well as carriers and reservoirs of pathogens of several infectious diseases of animals and man. The introductory part describes the body structure and its adaptive peculiarities, geographical distribution, history of study of the group and its phylogeny. The taxonomic part presents characteristics of more than 130 extant as well as extinct species combined into 42 genera and 8 tribes. The monograph concludes with a special section (by I. Ya. Polyakov) containing detailed biological characteristics of individual groups of voles including the data on the structural peculiarities and population dynamics, economic importance and control measures under different natural conditions.
Download or read book Behavioural Biology of the Collared Lemming written by Ronald J. Brooks and published by . This book was released on 1973 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Small Mammals written by F. B. Golley and published by Cambridge University Press. This book was released on 1975-09-25 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume, first published in 1975, looks at small mammal populations with emphasis being placed on their ecology and energy dynamics. It discusses the most productive research techniques and research objectives. The second part of the book deals with the roles of small mammals in ecosystems.
Download or read book Annales zoologici Fennici written by and published by . This book was released on 1999 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mammalogy written by Terry Vaughan and published by Jones & Bartlett Learning. This book was released on 2011-04-21 with total page 770 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Newly revised and extensively updated, the fifth edition of Mammalogy explains and clarifies the subject of mammalian biology as a unified whole, taking care to discuss the latest and most fascinating discoveries in the field. In recent years we witnessed significant changes in the taxonomy of mammals. The authors kept pace with such changes and revised each chapter to reflect the most current data and statistics available. New pedagogical elements, including chapter outlines, lists of key morphological characteristics, and further reading sections, help readers grasp the most important concepts and explore additional content on their own." --Book Jacket.
Download or read book OTS written by United States. Department of Commerce. Office of Technical Services and published by . This book was released on 1976 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal written by Institute of Animal Technicians (Great Britain) and published by . This book was released on 1972 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Ecological Research written by and published by Academic Press. This book was released on 1974-11-29 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Ecological Research
Download or read book Wildlife Review written by and published by . This book was released on 1974 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Animal Behaviour Monographs written by and published by . This book was released on 1973 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tundra Ecosystems written by International Biological Programme and published by CUP Archive. This book was released on 1981 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt: Brings together the results of research programmes in Austria, Canada, U.S.A., Finland, Norway, Sweden, Greenland, U.K., Ireland, U.S.S.R. and the Antarctic describing tundra and related ecosystems in a comparative manner. Includes sections on the abiotic, plant production and fauna components, the decomposer cycle and the utilisation and conservation of tundra.
Download or read book Cumulated Index Medicus written by and published by . This book was released on 1972 with total page 1336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultrastructure of Reproduction written by Jonathan van Blerkom and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in the development and application of electron microscopic techniques have occurred recently such that the electron microscope has evolved to become an essential tool in both basic and clinical research. Use of this instrument has contributed significantly to the formation of new perspectives and concepts concerning cell fine structure. These structural perspectives are now being integrated with specific functional, biochemical and pathophysiological events and processes of cells and tissues. Most recently, utilization of innovative electron microscopic techniques such as freeze-fracture, freeze etching, and scanning and high-voltage electron microscopy offers both the basic and clinical scientist potentially fundamental insights into many morphodynamic processes related to the activities of cells and tissues. Such an approach has been especially rewarding when applied to the dynamic events of gametogenesis and early embryonic development. The chapters comprising this book have been selected and edited with the aim of providing an up-to-date and comprehensive account of the most important aspects of vertebrate gamets and embryos as revealed by the integration of several different submicroscopic methods. The organization of the chapters is designed to indicate present gaps in our knowledge of the developmental and reproductive biology of gametes and the developing embryo and possible Iines of research which may lead to a lessening of these gaps.
Download or read book Journal of the Animal Technicians Association written by Institute of Animal Technicians and published by . This book was released on 1972 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
