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Author : Toni Gossmann,Jane Waterman,John Lad Koprowski,Oleg Brandler
Publisher : Frontiers Media SA
Page : 171 pages
File Size : 50,9 Mb
Release : 2021-11-29
Category : Science
ISBN : 9782889717156
Author : Richard W. Thorington, Jr.,John L. Koprowski,Michael A. Steele,James F. Whatton
Publisher : JHU Press
Page : 470 pages
File Size : 53,9 Mb
Release : 2012-08-03
Category : Science
ISBN : 9781421404691
Squirrels of the World, written by scientists with more than 100 years of collective experience studying these popular mammals, is the first comprehensive examination of all 285 species of squirrels worldwide. The authors reveal virtually every detail of the family Sciuridae, which includes ground squirrels, tree squirrels, flying squirrels, prairie dogs, and chipmunks. Each species—from the familiar gray squirrel of American backyards to the exotic and endangered woolly flying squirrel of Pakistan—is described in a detailed account that includes distinguishing characteristics, ecology, natural history, conservation status, and current threats to its existence. Squirrels of the World includes • stunning color photographs that document rare and unusual squirrels as well as common varieties• evolution, morphology, ecology, and conservation status• colorful range maps marking species distribution• images of the skull of each genus of squirrel• extensive references -- Lawrence Heaney, Curator and Head of the Division of Mammals, The Field Museum (Chicago)
Author : Richard W. Thorington,Richard W. Thorington Jr.,Katie E. Ferrell
Publisher : JHU Press
Page : 220 pages
File Size : 40,9 Mb
Release : 2006-08-28
Category : Nature
ISBN : 9780801884023
Publisher description
Author : N.C. Stenseth,W.Z. Lidicker
Publisher : Springer Science & Business Media
Page : 365 pages
File Size : 55,6 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401123389
4.1.1 Demographic significance Confined populations grow more rapidly than populations from which dispersal is permitted (Lidicker, 1975; Krebs, 1979; Tamarin et at., 1984), and demography in island populations where dispersal is restricted differs greatly from nearby mainland populations (Lidicker, 1973; Tamarin, 1977, 1978; Gliwicz, 1980), clearly demonstrating the demographic signi ficance of dispersal. The prevalence of dispersal in rapidly expanding populations is held to be the best evidence for presaturation dispersal. Because dispersal reduces the growth rate of source populations, it is generally believed that emigration is not balanced by immigration, and that mortality of emigrants occurs as a result of movement into a 'sink' of unfavourable habitat. If such dispersal is age- or sex-biased, the demo graphy of the population is markedly affected, as a consequence of differ ences in mortality in the dispersive sex or age class. Habitat heterogeneity consequently underlies this interpretation of dispersal and its demographic consequences, although the spatial variability of environments is rarely assessed in dispersal studies.
Author : Jerry O. Wolff,Paul W. Sherman
Publisher : University of Chicago Press
Page : 1255 pages
File Size : 43,7 Mb
Release : 2008-09-15
Category : Science
ISBN : 9780226905389
Rodent Societies synthesizes and integrates the current state of knowledge about the social behavior of rodents, providing ecological and evolutionary contexts for understanding their societies and highlighting emerging conservation and management strategies to preserve them. It begins with a summary of the evolution, phylogeny, and biogeography of social and nonsocial rodents, providing a historical basis for comparative analyses. Subsequent sections focus on group-living rodents and characterize their reproductive behaviors, life histories and population ecology, genetics, neuroendocrine mechanisms, behavioral development, cognitive processes, communication mechanisms, cooperative and uncooperative behaviors, antipredator strategies, comparative socioecology, diseases, and conservation. Using the highly diverse and well-studied Rodentia as model systems to integrate a variety of research approaches and evolutionary theory into a unifying framework, Rodent Societies will appeal to a wide range of disciplines, both as a compendium of current research and as a stimulus for future collaborative and interdisciplinary investigations.
Author : Sabine Begall,Hynek Burda,Cristian Eric Schleich
Publisher : Springer Science & Business Media
Page : 398 pages
File Size : 45,9 Mb
Release : 2007-06-12
Category : Science
ISBN : 9783540692768
Subterranean Rodents presents achievements from recent years of research on these rodents, divided into five sections: ecophysiology; sensory ecology; life histories, behavioural ecology and demography; environmental and economical impact; molecular ecology and evolution. It is a must for all researchers working in this field and will be of interest to zoologists, physiologists, morphologists, ecologists, and evolutionary biologists.
Author : N. Eldredge,S. M. Stanley
Publisher : Springer Science & Business Media
Page : 291 pages
File Size : 47,9 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781461382713
The case history approach has an impressive record of success in a variety of disciplines. Collections of case histories, casebooks, are now widely used in all sorts of specialties other than in their familiar appli cation to law and medicine. The case method had its formal beginning at Harvard in 1871 when Christopher Lagdell developed it as a means of teaching. It was so successful in teaching law that it was soon adopted in medical education, and the collection of cases provided the raw material for research on various diseases. Subsequently, the case history approach spread to such varied fields as business, psychology, management, and economics, and there are over 100 books in print that use this approach. The idea for a series of Casehooks in Earth Science grew from my experience in organizing and editing a collection of examples of one variety of sedimentary deposits. The prqject began as an effort to bring some order to a large number of descriptions of these deposits that were so varied in presentation and terminology that even specialists found them difficult to compare and analyze. Thus, from the beginning, it was evident that something more than a simple collection of papers was needed. Accordingly, the nearly fifty contributors worked together with George de Vries Klein and me to establish a standard format for presenting the case histories.
Author : Yeong-Seok Jo,John T. Baccus,John L. Koprowski
Publisher : National Institute of Biological Resources
Page : 128 pages
File Size : 40,9 Mb
Release : 2018-12-20
Category : Science
ISBN : 9788968113697
Author : W. Patrick Luckett,Jean-Louis Hartenberger
Publisher : Springer Science & Business Media
Page : 720 pages
File Size : 49,6 Mb
Release : 2013-11-11
Category : Science
ISBN : 9781489905390
The order Rodentia is the most abundant and successful group of mammals, and it has been a focal point of attention for compar ative and evolutionary biologists for many years. In addition, rodents are the most commonly used experimental mammals for bio medical research, and they have played a central role in investi gations of the genetic and molecular mechanisms of speciation in mammals. During recent decades, a tremendous amount of new data from various aspects of the biology of living and fossil rodents has been accumulated by specialists from different disciplines, ranging from molecular biology to paleontology. Paradoxically, our understanding of the possible evolutionary relationships among different rodent families, as well as the possible affinities of rodents with other eutherian mammals, has not kept pace with this information "explosion. " This abundance of new biological data has not been incorporated into a broad synthesis of rodent phylo geny, in part because of the difficulty for any single student of rodent evolution to evaluate the phylogenetic significance of new findings from such diverse disciplines as paleontology, embryology, comparative anatomy, molecular biology, and cytogenetics. The origin and subsequent radiation of the order Rodentia were based primarily on the acquisition of a key character complex: specializations of the incisors, cheek teeth, and associated mus culoskeletal features of the jaws and skull for gnawing and chewing.
Author : J. D. Skinner,Christian T. Chimimba
Publisher : Cambridge University Press
Page : 128 pages
File Size : 43,9 Mb
Release : 2006-03-20
Category : Science
ISBN : 9781107394056
This comprehensive volume covers all mammals that occur naturally on the African mainland south of the Cunene and Zambezi rivers, and also in the subregion's coastal waters. Extensively revised and updated for the new edition, it now includes the latest data from from mammal research in southern Africa along with the radical taxonomic changes across all levels of mammalian classification. Containing contributions from specialists on each mammalian order, each species description has been reviewed by a range of independent and internationally recognised authorities. Along with the latest taxonomic information, the distribution maps and illustrations have been updated and redrawn, several new colour plates have been added, and the whole design has been enhanced to aid access to key information. This is the most comprehensive and up-to-date survey of southern-African mammals and forms an essential reference for zoologists, evolutionary biologists and anyone wanting an overview of the region's wildlife.
Author : Peter W. W. Lurz,John Gurnell
Publisher : Unknown
Page : 0 pages
File Size : 47,6 Mb
Release : 2016
Category : Gray squirrel
ISBN : 0954757645
Author : William W. Korth
Publisher : Springer Science & Business Media
Page : 340 pages
File Size : 54,5 Mb
Release : 1994-05-31
Category : Science
ISBN : 0306446960
Nearly half of the known species of mammals alive today (more than 1600) are rodents or "gnawing mammals" (Nowak and Paradiso, 1983). The diversity of rodents is greater than that of any other order of mammals. Thus, it is not surprising that the fossil record of this order is extensive and fossil material of rodents from the Tertiary is known from all continents except Antarctica and Australia. The purpose of this book is to compile the published knowledge on fossil rodents from North America and present it in a way that is accessible to paleontologists and mammalogists interested in evolutionary studies of ro dents. The literature on fossil rodents is widely scattered between journals on paleontology and mammalogy and in-house publications of museums and universities. Currently, there is no single source that offers ready access to the literature on a specific family of rodents and its fossil history. This work is presented as a reference text that can be useful to specialists in rodents (fossil or recent) as weIl as mammalian paleontologists working on whole faunas. Because the diversity of rodents in the world is essentially limitless, any monograph that included all fossil rodents would similarly be limitless. Hence, this book is limited to the re cord of Tertiary rodents of North America. The several species of South American (caviomorph) rodents that invaded North America near the end of the Tertiary are also not included in this text.
Author : P.S.Verma
Publisher : S. Chand Publishing
Page : 686 pages
File Size : 54,9 Mb
Release : 1965
Category : Science
ISBN : 9788121916394
FOR B.Sc & B.Sc.(Hons) CLASSES OF ALL INDIAN UNIVERSITIES AND ALSO AS PER UGC MODEL CURRICULUMN Contents: CONTENTS:Protochordates:Hemicholrdata 1.Urochordata Cephalochordata Vertebrates : Cyclostomata 3. Agnatha, Pisces Amphibia 4. Reptilia 5. Aves Mammalia 7 Comparative Anatomy:lntegumentary System 8 Skeletal System Coelom and Digestive System 10 Respiratory System 11. Circulatory System Nervous System 13. Receptor Organs 14 Endocrine System 15 Urinogenital System 16 Embryology Some Comparative Charts of Protochordates 17 Some Comparative Charts of Vertebrate Animal Types 18 Index.
Author : Serge Morand,Boris R. Krasnov,D. Timothy J. Littlewood
Publisher : Cambridge University Press
Page : 503 pages
File Size : 55,8 Mb
Release : 2015-02-26
Category : Medical
ISBN : 9781107037656
By joining phylogenetics and evolutionary ecology, this book explores the patterns of parasite diversity while revealing diversification processes.
Author : Mike Lehane
Publisher : Springer Science & Business Media
Page : 301 pages
File Size : 44,7 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401179539
Blood-sucking insects are the vectors of many of the most debilitating parasites of man and his domesticated animals. In addition they are of considerable direct cost to the agricultural industry through losses in milk and meat yields, and through damage to hides and wool, etc. So, not surprisingly, many books of medical and veterinary entomology have been written. Most of these texts are organized taxonomically giving the details of the life-cycles, bionomics, relationship to disease and economic importance of each of the insect groups in turn. I have taken a different approach. This book is topic led and aims to discuss the biological themes which are common in the lives of blood-sucking insects. To do this I have concentrated on those aspects of the biology of these fascinating insects which have been clearly modified in some way to suit the blood-sucking habit. For example, I have discussed feeding and digestion in some detail because feeding on blood presents insects with special problems, but I have not discussed respiration because it is not affected in any particular way by haematophagy. Naturally there is a subjective element in the choice of topics for discussion and the weight given to each. I hope that I have not let my enthusiasm for particular subjects get the better of me on too many occasions and that the subject material achieves an overall balance.