Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Metabolic And Cardiac Responses To Temperature In The Lizart Sceloporous Undalatus Garmain
Download Metabolic And Cardiac Responses To Temperature In The Lizart Sceloporous Undalatus Garmain full books in PDF, epub, and Kindle. Read online Metabolic And Cardiac Responses To Temperature In The Lizart Sceloporous Undalatus Garmain ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Metabolic and Cardiac Responses to Temperature in the Lizart Sceloporous Undalatus Garmain by : Robert J. Werth
Download or read book Metabolic and Cardiac Responses to Temperature in the Lizart Sceloporous Undalatus Garmain written by Robert J. Werth and published by . This book was released on 1965 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study in physiological ecology involves the effects of temperature on oxygen consumption, heart rate, and respiratory rate in the prairie lizard Sceloporus undulatus garmani (Boulenger). Comparisons of these responses on basis of Q10 indicates a close relationship between metabolism, heart rate and body temperature while respiratory rate does not appear to be directly correlated with temperature. All these physiological functions show considerable sensitivity in response at low temperatures. At eccritic temperatures, data indicates that heart rate has a role in meeting metabolic demands.
Book Synopsis Measuring the Effects of Temperature and Nutritional Status on Metabolic Rates of Eastern Fence Lizards (Sceloporus Undulatus) by : Julianne Therese Zannoni
Download or read book Measuring the Effects of Temperature and Nutritional Status on Metabolic Rates of Eastern Fence Lizards (Sceloporus Undulatus) written by Julianne Therese Zannoni and published by . This book was released on 1997 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Metabolic Adaptations to Temperature in Lizards of the Genus Sceloporus from Different Latitudes by : Joyce Shizu Tsuji
Download or read book Metabolic Adaptations to Temperature in Lizards of the Genus Sceloporus from Different Latitudes written by Joyce Shizu Tsuji and published by . This book was released on 1986 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cardiac Responses to Temperature in Marine Teleosts by : Nishad Jayasundara
Download or read book Cardiac Responses to Temperature in Marine Teleosts written by Nishad Jayasundara and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Through evolutionary and acclimatory processes, organisms, including marine teleosts, have modified a common set of biochemical structures and processes to compensate for challenges presented by changes in ambient temperature. Investigating these biological processes underlying thermal optima and thermal limits of ectothermic species is crucial to determining susceptibility of an organism to shifts in their environmental temperature. An insufficient supply of oxygen under thermal stress is thought to underlie thermal limits in aquatic animals including teleost fish. Therefore, to compensate for effects of temperature, organisms may induce an acclimatory response that enhances cardiac performance and oxygen delivery under a new temperature regime. These changes alter the critical threshold of a temperature stress for an organism and thereby maintain or increase its fitness in its environment. The dissertation research presented here investigates effects of temperature acclimation on whole organismal physiology and cellular and molecular processes in cardiac tissues in three physiologically and ecologically distinct perciforme teleosts -- Gillichthys mirabilis, Thunnus orientalis and Trematomus bernacchii. Chapter One focuses on effects of temperature acclimation on thermal limits, metabolic rate, heart rate, oxygen carrying capacity and plasma lactate levels in a highly eurythermal goby species, Gillichthys mirabilis, acclimated to 9oC, 19oC and 26oC for four weeks. Metabolic rate and heart rate measurements were made in fish at their acclimation temperature and when exposed an acute thermal stress. Metabolic rates and plasma lactate levels were also measured in fish recovering from an acute heat stress. Both resting metabolic rates and heart rates at their respective acclimation temperatures did not show a thermal compensatory response with acclimation and maintained elevated rates at warm temperatures. During recovery from an acute stress, only 26oC fish showed post-stress elevation in metabolic rate. Elevated routine and recovery metabolic rates at 26oC suggested an increased energetic cost associated with warm acclimation and when exposed to an acute heat stress; this increased energy demand is possibly to sustain an adequate cellular stress response at high temperatures. Fish acclimated at 19oC and 26oC were able to increase their upper thermal limit and onset of cardiac arrhythmia compared to 9oC-acclimated fish. These data illustrate the pronounced cardiac plasticity and associated phenotypic plasticity of this species. However, this capacity to induce an acclimatory response appears to decrease significantly at temperatures beyond 19oC in G. mirabilis. Chapter Two examined effects of acclimation on cardiac proteome in G. mirabilis acclimated to 9oC, 19oC and 26oC. Proteomic analysis revealed differential expression of proteins involved in cardiac energy metabolism, mitochondrial regulation, iron homeostasis, oxidative stress, cytoprotection against hypoxia, and cytoskeletal reorganization. Proteomic data coupled with in vitro enzyme assay data showed that cardiac energy metabolism, thus aerobic poise of cardiac tissues, is increased in 19oC-acclimated fish compared to 9oC and 26oC-acclimated fish. Overall findings from both Chapters One and Two illustrate that despite their capacity to tolerate a gradient of temperatures, Gillichthys mirabilis exhibit highest cardiac performance near ~19oC, a temperature close to their preferred temperature. Chapter Three investigates the effects of temperature acclimation on cardiorespiratory responses and cardiac and skeletal muscle energy metabolism in a highly stenothermal Antarctic notothenioid, Trematomus bernacchii. Acclimation had no effect on heart rates at resting conditions or the temperatures at which onset of cardiac arrhythmia occurred, suggesting lack of inducible thermal tolerance in cardiac performance in this fish. These data support the hypothesis that cardiac limitations may play a role in reduced thermal tolerance and thermal plasticity of T. bernacchii. Chapter Four examines the effects of acclimation on cardiac transcriptome of endothermic Pacific bluefin tuna Thunnus orientalis acclimated to 14oC, 20oC and 25oC. Overall data indicate that these fish have restored cellular homeostasis at 14oC, potentially optimizing bluefin tuna performance in colder oceans. In contrast, metabolic enzyme activity and gene expression data at 25oC suggest a decrease in total ATP production in cardiac cells, and reduced stress responses. Furthermore, at elevated temperatures cardiac tissues appear to be subjected to heightened oxidative stress and programmed cell death. Together, these data suggest a reduced cardiac performance at ecologically relevant warm temperatures for Pacific bluefin tuna.
Book Synopsis Temperature Biology of Animals by : Andrew Cossins
Download or read book Temperature Biology of Animals written by Andrew Cossins and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: Temperature is one facet in the mosaic of physical and biotic factors that describes the niche of an animal. Ofthe physical factors it is ecologically the most important. for it is a factor that is all-pervasive and one that. in most environments. lacks spatial or temporal constancy. Evolution has produced a wide variety of adaptive strategies and tactics to exploit or deal with this variable environmental factor. The ease with which temperature can be measured. and controlled experimentally. together with its widespread influence on the affairs of animals. has understandably led to a large. dispersed literature. In spite of this no recent book provides a comprehensive treatment of the biology of animals in relation to temperature. Our intention in writing this book was to fill that gap. We hope we have provided a modern statement with a critical synthesis of this diverse field. which will be suitable and stimulating for both advanced undergraduate and post graduate students of biology. This book is emphatically not intended as a monographical review. as thermal biology is such a diverse. developed discipline that it could not be encompassed within the confines of a book of this size.
Book Synopsis Handbook of Primate Husbandry and Welfare by : Sarah Wolfensohn
Download or read book Handbook of Primate Husbandry and Welfare written by Sarah Wolfensohn and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Primate Husbandry and Welfare covers all aspects of primate care and management both in the laboratory environment and in zoos. From the welfare and ethics of primate captivity through to housing and husbandry systems, environmental enrichment, nutritional requirements, breeding issues, primate diseases, and additional information on transportation and quarantine proceedings, this book provides a completely comprehensive guide to good husbandry and management of primates. Designed to be a practical field manual, the authors present the material using lists, tables and illustrations to clarify best practice. Representative species are covered – from marmosets through to macaques One of the first books dedicated to the care of primates in captivity Written by authors with many years of experience working with primates Suitable for those working with primates in either laboratories or zoos
Book Synopsis Index-catalogue of Medical and Veterinary Zoology by :
Download or read book Index-catalogue of Medical and Veterinary Zoology written by and published by . This book was released on 1975 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Behavioral Ecology of Neotropical Birds by : Juan Carlos Reboreda
Download or read book Behavioral Ecology of Neotropical Birds written by Juan Carlos Reboreda and published by Springer. This book was released on 2019-04-24 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers central aspects of behavioral ecology, including sexual selection, social and genetic mating systems, cooperative breeding, brood parasitism, brood reduction, migration, personalities and communication. Over the past several years, Neotropical bird species from temperate to tropical latitudes of South America have been extensively studied, yielding valuable insights into the evolutionary mechanisms that drive their behavioral traits. In this book, international experts provide a general overview of main behavioral aspects. They also present the main findings of their work, including experimental approaches to testing the most accepted behavioral theory in their model systems. In closing, they propose new theoretical frameworks and future research directions. As such, the book provides a comprehensive and updated guide for all researchers, students and professionals whose work involves the study and management of birds across the Neotropical region.
Book Synopsis Sacred Songs: Soprano by : William James Henderson
Download or read book Sacred Songs: Soprano written by William James Henderson and published by . This book was released on 1903 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Avian Reproduction by : Tomohiro Sasanami
Download or read book Avian Reproduction written by Tomohiro Sasanami and published by Springer. This book was released on 2017-10-04 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides everything from basic knowledge to the recent understandings of avian reproductive physiology, covering many unique aspects. It will inspire avian biologists as well as researchers in varied fields and will offer important steps towards better fertilization success in birds.In spite of the recent remarkable developments in modern technology, a comprehensive understanding of the reproductive mechanisms is still far in the future due to the diverse reproductive tactics in vertebrates. Birds have highly refined reproductive strategies and some of those strategies are unique to birds. However, together with ongoing progress of the genome analysis of birds and the crying need for further increase in meat and egg production, research on avian reproduction is now accelerating and becoming more important.With contributions by leading scientists, the book explains avian primordial germ cells; the sex-determining mechanism; reproductive endocrinology and immunology; sperm, egg, and egg coat; sperm–egg interaction; polyspermic fertilization; seasonal reproduction; social triggers; hormonal and behavioral changes; broodiness; oviductal sperm storage; and biotechnology. This book is recommended for all researchers and students who are interested in birds or reproduction.
Book Synopsis The Geographic Mosaic of Coevolution by : John N. Thompson
Download or read book The Geographic Mosaic of Coevolution written by John N. Thompson and published by University of Chicago Press. This book was released on 2005-06-15 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coevolution—reciprocal evolutionary change in interacting species driven by natural selection—is one of the most important ecological and genetic processes organizing the earth's biodiversity: most plants and animals require coevolved interactions with other species to survive and reproduce. The Geographic Mosaic of Coevolution analyzes how the biology of species provides the raw material for long-term coevolution, evaluates how local coadaptation forms the basic module of coevolutionary change, and explores how the coevolutionary process reshapes locally coevolving interactions across the earth's constantly changing landscapes. Picking up where his influential The Coevolutionary Process left off, John N. Thompsonsynthesizes the state of a rapidly developing science that integrates approaches from evolutionary ecology, population genetics, phylogeography, systematics, evolutionary biochemistry and physiology, and molecular biology. Using models, data, and hypotheses to develop a complete conceptual framework, Thompson also draws on examples from a wide range of taxa and environments, illustrating the expanding breadth and depth of research in coevolutionary biology.
Book Synopsis The Evolution of Anisogamy by : Tatsuya Togashi
Download or read book The Evolution of Anisogamy written by Tatsuya Togashi and published by Cambridge University Press. This book was released on 2011-04-14 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: Darwin identified the existence of separate male and female gametes as one of the central mysteries of evolutionary biology. 150 years later, the question of why male gametes exist remains an intriguing puzzle. In this, the first book solely devoted to the evolution of anisogamy, top theorists in the field explore why gamete dimorphism characterizes nearly all plants and animals. Did separate male and female gametes evolve as a result of competition, or does anisogamy instead represent selection for cooperation? If disruptive selection drove the evolution of anisogamy, with male gametes focused on search and fusion, and female gametes provisioning the new zygote, why do some algal species continue to produce gametes of a single size? Does sperm limitation, or escape from infection, better explain the need for extremely small, highly mobile sperm? Written by leaders in the field, this volume offers an authoritative and cutting-edge overview of evolutionary theory.
Author :Society for the Study of Amphibians and Reptiles Publisher :Society for the Study of Amphibians & Reptiles ISBN 13 : Total Pages :404 pages Book Rating :4.E/5 ( download)
Book Synopsis Contributions to the History of Herpetology by : Society for the Study of Amphibians and Reptiles
Download or read book Contributions to the History of Herpetology written by Society for the Study of Amphibians and Reptiles and published by Society for the Study of Amphibians & Reptiles. This book was released on 1989 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Invasion Biology by : Jonathan M Jeschke
Download or read book Invasion Biology written by Jonathan M Jeschke and published by CABI. This book was released on 2018-04-25 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are many hypotheses describing the interactions involved in biological invasions, but it is largely unknown whether they are backed up by empirical evidence. This book fills that gap by developing a tool for assessing research hypotheses and applying it to twelve invasion hypotheses, using the hierarchy-of-hypotheses (HoH) approach, and mapping the connections between theory and evidence. In Part 1, an overview chapter of invasion biology is followed by an introduction to the HoH approach and short chapters by science theorists and philosophers who comment on the approach. Part 2 outlines the invasion hypotheses and their interrelationships. These include biotic resistance and island susceptibility hypotheses, disturbance hypothesis, invasional meltdown hypothesis, enemy release hypothesis, evolution of increased competitive ability and shifting defence hypotheses, tens rule, phenotypic plasticity hypothesis, Darwin's naturalization and limiting similarity hypotheses and the propagule pressure hypothesis. Part 3 provides a synthesis and suggests future directions for invasion research.
Book Synopsis The Evolutionary Ecology of Invasive Species by : Johannes Le Roux
Download or read book The Evolutionary Ecology of Invasive Species written by Johannes Le Roux and published by Academic Press. This book was released on 2021-10-24 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Evolutionary Ecology of Invasive Species offers new insights into the mechanisms that underlie rapid evolution in these species. The book provides a comprehensive overview of achievements in the field during the boom of information over the past two decades and includes discussions of possible future directions for the study of evolution in invasive species. Written by an international expert in invasion ecology, population genetics, and evolutionary biology, the book explores the roles of preadaptation, phenotypic plasticity, selection, and stochastic processes in driving rapid evolution. The book draws insights from a wide spectrum of invasive microbes, plants, and animals, covering many of the planet’s biogeographic regions and discusses the evolutionary consequences for native species in response to biological invasions. A valuable resource to researchers and students in evolutionary biology, invasive species biology, and global change biology, this text suggests future research directions related to the evolutionary biology, impacts, and management of invasive species. Highlights the most recent advances and developments in using evolutionary principles to study and manage invasive species Offers new and often overlooked insights in processes that govern rapid evolution Discusses key stages of population demography that underlie rapid evolutionary change in invasive species, including their introduction, naturalisation, and dispersal
Book Synopsis How to Walk on Water and Climb up Walls by : David Hu
Download or read book How to Walk on Water and Climb up Walls written by David Hu and published by Princeton University Press. This book was released on 2020-03-03 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Insects walk on water, snakes slither, and fish swim. Animals move with astounding grace, speed, and versatility: how do they do it, and what can we learn from them? In How to Walk on Water and Climb up Walls, David Hu takes readers on an accessible, wondrous journey into the world of animal motion. From basement labs at MIT to the rain forests of Panama, Hu shows how animals have adapted and evolved to traverse their environments, taking advantage of physical laws with results that are startling and ingenious. In turn, the latest discoveries about animal mechanics are inspiring scientists to invent robots and devices that move with similar elegance and efficiency. Hu follows scientists as they investigate a multitude of animal movements, from the undulations of sandfish and the way that dogs shake off water in fractions of a second to the seemingly crash-resistant characteristics of insect flight. Not limiting his exploration to individual organisms, Hu describes the ways animals enact swarm intelligence, such as when army ants cooperate and link their bodies to create bridges that span ravines. He also looks at what scientists learn from nature's unexpected feats--such as snakes that fly, mosquitoes that survive rainstorms, and dead fish that swim upstream. As researchers better understand such issues as energy, flexibility, and water repellency in animal movement, they are applying this knowledge to the development of cutting-edge technology. Integrating biology, engineering, physics, and robotics, [this book] demystifies the remarkable mechanics behind animal locomotion"--Page 4 of cover.
Book Synopsis Reproduction in Mammals by : Virginia Hayssen
Download or read book Reproduction in Mammals written by Virginia Hayssen and published by JHU Press. This book was released on 2017-10-27 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Newborn mammals can weigh as little as a dime or as much as a motorcycle. Some receive milk for only a few days, whereas others nurse for years. Humans typically have only one baby at a time following nine months of pregnancy, but other mammals have 20 or more young after only a few weeks in utero. What causes this incredible reproductive diversity? Reproduction in Mammals is a fascinating examination of the diverse reproductive strategies of a broad spectrum of mammals and the ways in which natural selection has influenced that diversity. While accounts of reproduction in individual taxa abound, this unique book's comprehensive coverage gathers stories from many taxa into a single, cohesive perspective that centers on the reproductive lives of females. The authors shed light on intriguing questions such as: Do bigger moms have bigger babies? Do primates have longer pregnancies than other groups? Do aquatic animals have particular patterns? Do carnivores like lions often produce larger litters than prey species? The book opens with the authors' definition of what constitutes a female perspective and an examination of the evolution of reproduction in mammals. It then outlines the individual female: her genetics, anatomy, and physiology. From this nuanced basis, the text progresses to mirror the female reproductive cycle and includes her interactions with males and offspring. The final section contextualizes the reproductive cycle within the rest of the world--both abiotic and biotic environments. To close, the authors include dedicated chapters on human concerns: conservation and women as mammals. Readers will come away from this thought-provoking book with an understanding not only of how reproduction fits into the lives of female mammals but also of how biology has affected the enormously diverse reproductive patterns of the phenotypes we observe today."-- Provided by publisher.
