Download or read book Genotypic Analysis of Ambystoma Maculatum Spermatozoa written by Elizabeth Jackson and published by . This book was released on 2014 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, we performed genotypic analysis on spermatozoa from Ambystoma maculatum (spotted salamanders). Spotted salamanders produce spermatophores, small gelatinous structures containing sperm, and deposit them on substrate in vernal ponds. Collecting spermatophores is a non-invasive method for obtaining genetic information. We successfully isolated DNA from the spermatophores and, using PCR and capillary electrophoresis, determined genotypes using alleles at several different microsatellite loci. Genotype analysis of samples from several locations in the pond revealed a large number of males in each location. We determined zygosity and allele frequencies for several loci and determined which spermatophores were deposited by the same individual. While we did collect spermatophores from the same individuals within clusters, we found that clusters of spermatophore fields were largely independent of each other. In this study, we suggest a method that could prove useful for understanding breeding habits of spotted salamanders, and thus enhance conservation efforts.
Download or read book The Teeth of Non Mammalian Vertebrates written by Barry Berkovitz and published by Academic Press. This book was released on 2016-10-14 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Teeth of Non-Mammalian Vertebrates is the first comprehensive publication devoted to the teeth and dentitions of living fishes, amphibians and reptiles. The book presents a comprehensive survey of the amazing variety of tooth forms among non-mammalian vertebrates, based on descriptions of approximately 400 species belonging to about 160 families. The text is lavishly illustrated with more than 600 high-quality color and monochrome photographs of specimens gathered from top museums and research workers from around the world, supplemented by radiographs and micro-CT images. This stimulating work discusses the functional morphology of feeding, the attachment of teeth, and the relationship of tooth form to function, with each chapter accompanied by a comprehensive, up-to-date reference list. Following the descriptions of the teeth and dentitions in each class, four chapters review current topics with considerable research activity: tooth development; tooth replacement; and the structure, formation and evolution of the dental hard tissues. This timely book, authored by internationally recognized teachers and researchers in the field, also reflects the resurgence of interest in the dentitions of non-mammalian vertebrates as experimental systems to help understand genetic changes in evolution of teeth and jaws. Features more than 600 images, including numerous high-quality photographs from internationally-recognized researchers and world class collections Offers guidance on tooth morphology for classification and evolution of vertebrates Provides detailed coverage of the dentition of all living groups of non-mammalian vertebrates
Download or read book Reproductive Biology and Phylogeny of Urodela written by Barrie G. M. Jamieson and published by CRC Press. This book was released on 2003-01-05 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains original contributions from an international group of authors with the highest reputations in their respective areas of phylogenetic and reproductive studies on salamanders and newts. A full panoply of topics is covered, from morphology of gametes and reproductive systems to considerations of behavior and life history, all plac
Download or read book Herpetology written by Laurie J. Vitt and published by Academic Press. This book was released on 2012-12-02 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Herpetology has always been one of the most exciting disciplines of zoology. During the past few years the field has continued to grow, yet it has been plagued by scarcity of comprehensive, up-to-date textbooks containing the most important developments. This timely book fills that void. Through skillful synthesis, the author summarizes the diversity in the biology of living amphibians and reptiles and describes the breadth of current herpetological research. Topics covered include the evolution, classification, development, reproduction, population, and environmental issues surrounding the study of amphibians and reptiles. Designed as an advanced undergraduate textbook, Herpetology is a valuable resource for students, practitioners, and interested amateurs alike. Provides an incisive survey and much needed update of the field Emphasizes the biological diversity among amphibians and reptiles Details the most recent research findings, citing ke
Download or read book Principles of Development written by Lewis Wolpert and published by Oxford University Press, USA. This book was released on 1998 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developmental biology is at the core of all biology. This text emphasizes the principles and key developments in order to provide an approach and style that will appeal to students at all levels.
Download or read book Evolutionary Ecology of Newts written by Jan C. Malmgren and published by . This book was released on 2001 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology Systematics and the Natural History of Predaceous Diving Beetles Coleoptera Dytiscidae written by Donald A. Yee and published by Springer. This book was released on 2014-07-14 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Predaceous diving beetles (Coleoptera: Dytiscidae) constitute one of the largest families of freshwater insects (~ 4,200 species). Although dytiscid adults and larvae are ubiquitous throughout a variety of aquatic habitats and are significant predators on other aquatic invertebrates and vertebrates, there are no compilations that have focused on summarizing the knowledge of their ecology, systematics, and biology. Such knowledge would benefit anyone working in aquatic systems where dytiscids are an important part of the food web. Moreover, this work will allow a greater appreciation of dytiscids as model organisms for investigations of fundamental principles derived from ecological and evolutionary theory. Contributed chapters are by authors who are actively engaged in studying dytiscids and each chapter offers a synthesis of the current knowledge of a variety of topics and will provide future directions for research.
Download or read book An Introduction to Behavioural Ecology written by Nicholas B. Davies and published by John Wiley & Sons. This book was released on 2009-07-17 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: The third edition of this successful textbook looks again at the influence of natural selection on behavior - an animal's struggle to survive by exploiting resources, avoiding predators, and maximizing reproductive success. In this edition, new examples are introduced throughout, many illustrated with full color photographs. In addition, important new topics are added including the latest techniques of comparative analysis, the theory and application of DNA fingerprinting techniques, extensive new discussion on brood parasite/host coevolution, the latest ideas on sexual selection in relation to disease resistance, and a new section on the intentionality of communication. Written in the lucid style for which these two authors are renowned, the text is enhanced by boxed sections illustrating important concepts and new marginal notes that guide the reader through the text. This book will be essential reading for students taking courses in behavioral ecology. The leading introductory text from the two most prominent workers in the field. Second colour in the text. New section of four colour plates. Boxed sections to ilustrate difficult and important points. New larger format with marginal notes to guide the reader through the text. Selected further reading at the end of each chapter.
Download or read book Handbook of Genetics written by Robert King and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the first four volumes of the Handbook of Genetics is to bring together collections of relatively short, authoritative essays or an notated compilations of data on topics of significance to geneticists. Many of the essays will deal with various aspects of the biology of certain species or species groups selected because they are favorite subjects for genetic investigation in nature or the laboratory. Often there will be an encyclo pedic amount of information available on such species, with new papers appearing daily. Most of these will be written for specialists in a jargon that is bewildering to a novice, and sometimes even to a veteran geneticist working with evolutionarily distant organisms. For such readers what is needed is a written introduction to the morphology, life cycle, reproductive behavior, and culture methods for the species in question. What are its particular advantages (and disadvantages) for genetic study, and what have we learned from it? Where are the classic papers, the key bibli ographies, and how does one get stocks of wild type or mutant strains? Lists giving the symbolism and descriptions for selected mutants that have been retained and are thus available for future studies are provided whenever possible. Genetic and cytological maps, mitotic karyotypes, and haploid DNA values are also included when available. Volume 4 deals with certain vertebrate species that have been studied in considerable detail from the standpoint of genetics or molecular cytogenetics. Such data are available for only a relatively few vertebrates.
Download or read book Reptiles and Amphibians written by Fredric L. Frye and published by CRC Press. This book was released on 2005-01-01 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is enormous and growing worldwide interest in reptiles and amphibians in their natural habitats and in captivity. As the number of herpetologists, and the range of their interests, increases fast, veterinary practitioners are faced by an even wider array of animals kept as pets, in collections or for research, and knowledge of reptile and amphibian medicine is thus routinely expected of them. This Self-Assessment Colour Review presents the reader with some 250 short cases in the form of colour photos and questions at different levels of expertise, plus detailed explanatory answers. The cases appear in random order, just as they would in real life, and enable the reader - by solving the clinical puzzle - to make differential diagnoses, treatment plans and prognoses. Both authors lecture internationally and Dr Frye is among the world’s foremost authorities on reptile and amphibian medicine. Experienced and less experienced veterinary practitioners and students, plus professional and amateur herpetologists, find in this Colour Review a wealth of problem-oriented information of value - and enjoyment - in their formal and informal training and continuing education.
Download or read book Stem Cells Handbook written by Stewart Sell and published by Springer Science & Business Media. This book was released on 2013-08-16 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses critical areas of progress in stem cell research, including the most recent research and applications of pluripotent embryonic cells, induced pluripotent cells, oligopotent tissue stem cells and cancer stem cells. The text covers basic knowledge of stem cell biology, stem cell ethics, development of techniques for applying stem cell therapy, the technology of obtaining appropriate cells for transplantation as well as the role of stem cells in cancer and how therapy may be directed to cancer stem cells. This new volume is essential reading for all scientists currently in the field or allied research areas, and those for those graduate students who envision a career in stem cells.
Download or read book Artificial Insemination of Sheep written by S. Salamon and published by . This book was released on 1976 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mites Ecology Evolution Behaviour written by David Evans Walter and published by Springer Science & Business Media. This book was released on 2013-10-08 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: More than 40,000 species of mites have been described, and up to 1 million may exist on earth. These tiny arachnids play many ecological roles including acting as vectors of disease, vital players in soil formation, and important agents of biological control. But despite the grand diversity of mites, even trained biologists are often unaware of their significance. Mites: Ecology, Evolution and Behaviour (2nd edition) aims to fill the gaps in our understanding of these intriguing creatures. It surveys life cycles, feeding behaviour, reproductive biology and host-associations of mites without requiring prior knowledge of their morphology or taxonomy. Topics covered include evolution of mites and other arachnids, mites in soil and water, mites on plants and animals, sperm transfer and reproduction, mites and human disease, and mites as models for ecological and evolutionary theories.
Download or read book Ecology and Classification of North American Freshwater Invertebrates written by James H. Thorp and published by Academic Press. This book was released on 2010 with total page 1036 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The third edition of Ecology and Classification of North American Freshwater Invertebrates continues the tradition of in-depth coverage of the biology, ecology, phylogeny, and identification of freshwater invertebrates from the USA and Canada. This text serves as an authoritative single source for a broad coverage of the anatomy, physiology, ecology, and phylogeny of all major groups of invertebrates in inland waters of North America, north of Mexico." --Book Jacket.
Download or read book Amphibian conservation action plan proceedings IUCN SSC Amphibian Conservation Summit 2005 written by and published by IUCN. This book was released on 2007 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology Abstracts written by and published by . This book was released on 1989 with total page 1134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliographia Trichopterorum 1961 1970 written by Andrew P. Nimmo and published by Pensoft Publishers. This book was released on 1996 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
