Download or read book Avian Ancestors written by Federico Agnolin and published by Springer Science & Business Media. This book was released on 2013-02-26 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although consensus exists among researchers that birds evolved from coelurosaurian theropods, paleontologists still debate the identification of the group of coelurosaurians that most closely approaches the common ancestor of birds. The last 20 years witnessed the discovery of a wide array of avian-like theropods that has considerably amplified the anatomical disparity among deinonychosaurians, some of which resemble Archaeopteryx more than Deinonychus. Among these newly discovered theropods that show remarkable bird-like characteristics are the four-winged theropods Microraptor and Anchiornis, and the unenlagiids Unenlagia, Buitreraptor, and Rahonavis. A bizarre group of minute-sized coelurosaurs, the Scansoriopterygidae, also exhibits some avian similarities that lead some authors to interpret them as more closely related to birds than other dinosaurs. With the aim to explore the phylogenetic relationships of these coelurosaurians and birds, we merged recently published integrative databases, resulting in significant changes in the topological distribution of taxa within Paraves. We present evidence that Dromaeosauridae, Microraptoria, Unenlagiidae, and Anchiornis + Xiaotingia form successive sister taxa of Aves, and that the Scansoriopterygidae are basal coelurosaurians not closely related to birds. The implications in the evolutionary sequence of anatomical characters leading to birds, including the origin of flight, are also considered in light of this new phylogenetic hypothesis.
Download or read book Avian Evolution written by Gerald Mayr and published by John Wiley & Sons. This book was released on 2016-10-31 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: Knowledge of the evolutionary history of birds has much improved in recent decades. Fossils from critical time periods are being described at unprecedented rates and modern phylogenetic analyses have provided a framework for the interrelationships of the extant groups. This book gives an overview of the avian fossil record and its paleobiological significance, and it is the only up-to-date textbook that covers both Mesozoic and more modern-type Cenozoic birds in some detail. The reader is introduced to key features of basal avians and the morphological transformations that have occurred in the evolution towards modern birds. An account of the Cenozoic fossil record sheds light on the biogeographic history of the extant avian groups and discusses fossils in the context of current phylogenetic hypotheses. This review of the evolutionary history of birds not only addresses students and established researchers, but it may also be a useful source of information for anyone else with an interest in the evolution of birds and a moderate background in biology and geology.
Download or read book The Origin and Evolution of Birds written by Alan Feduccia and published by Yale University Press. This book was released on 1999-01-01 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: An exploration of all that is known about the origin of birds and of avian flight. It draws on fossil evidence and studies of the structure and biochemistry of living birds to present knowledge and data on avian evolution and to propose a new model of this evolutionary process.
Download or read book The Origin of Birds written by Gerhard Heilmann and published by . This book was released on 1926 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Avian Evolution written by Gerald Mayr and published by John Wiley & Sons. This book was released on 2016-09-08 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Knowledge of the evolutionary history of birds has much improved in recent decades. Fossils from critical time periods are being described at unprecedented rates and modern phylogenetic analyses have provided a framework for the interrelationships of the extant groups. This book gives an overview of the avian fossil record and its paleobiological significance, and it is the only up-to-date textbook that covers both Mesozoic and more modern-type Cenozoic birds in some detail. The reader is introduced to key features of basal avians and the morphological transformations that have occurred in the evolution towards modern birds. An account of the Cenozoic fossil record sheds light on the biogeographic history of the extant avian groups and discusses fossils in the context of current phylogenetic hypotheses. This review of the evolutionary history of birds not only addresses students and established researchers, but it may also be a useful source of information for anyone else with an interest in the evolution of birds and a moderate background in biology and geology.
Download or read book How Birds Evolve written by Douglas J. Futuyma and published by Princeton University Press. This book was released on 2024-10-29 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Why are male birds often so brightly colored? Why do some birds lay more eggs than others? Will bird species adapt to climate change? In How Birds Evolve, Douglas Futuyma invites readers into the amazing world of bird evolution to answer these and other questions. Futuyma's goal in this book is not to offer a comprehensive evolutionary history of birds, but to explore how the processes of evolution produced the distinctive features and behaviors we observe in birds today as well as their impressive diversity. Using one or two birds per chapters as a lens into broader questions, Futuyma explores how a bird's evolutionary history helps us understand the diversity of species and the bird tree of life and how natural selection explains most of the characteristics of birds from how populations adapt to sexual selection and birds' amazing social behavior. Futuyma concludes by discussing the future of birds, particularly patterns of extinction and whether they can adapt to a changing climate. Ultimately, Futuyman wants readers to see that evolutionary biology helps us to better understand birds, and that the reverse is also true: studies of birds have informed almost every aspect of evolutionary biology, from Darwin to today"--
Download or read book Aboriginal Peoples and Birds in Australia written by Philip A. Clarke and published by CSIRO PUBLISHING. This book was released on 2023-04-03 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Australia is home to many distinctive species of birds, and Aboriginal peoples have developed close alliances with them over the millennia of their custodianship of this country. Aboriginal Peoples and Birds in Australia: Historical and Cultural Relationships provides a review of the broad physical, historical and cultural relationships that Aboriginal people have had with the Australian avifauna. This book aims to raise awareness of the alternative bodies of ornithological knowledge that reside outside of Western science. It describes the role of birds as totemic ancestors and spirit beings, and explores Aboriginal bird nomenclature, foraging techniques and the use of avian materials to make food, medicine and artefacts. Through a historical perspective, this book examines the gaps between knowledge systems of Indigenous peoples and Western science, to encourage greater collaboration and acknowledgment in the future. Cultural sensitivity Readers are warned that there may be words, descriptions and terms used in this book that are culturally sensitive, and which might not normally be used in certain public or community contexts. While this information may not reflect current understanding, it is provided by the author in a historical context. This publication may also contain quotations, terms and annotations that reflect the historical attitude of the original author or that of the period in which the item was written, and may be considered inappropriate today. Aboriginal and Torres Strait Islander peoples are advised that this publication may contain the names and images of people who have passed away.
Download or read book In a Class of Their Own written by Gary Ritchison and published by Springer Nature. This book was released on 2023-11-06 with total page 2516 pages. Available in PDF, EPUB and Kindle. Book excerpt: With more than 10,000 species that vary in size, use diverse habitats that extend across latitudes and altitudes, consume a wide variety of food items, differ in how they fly (or not), communicate, and reproduce, and have different life histories, birds exhibit remarkable variation in form (anatomy) and function (physiology). Our understanding of how natural selection has generated this variation as birds evolved and as different species adapted to their unique circumstances has grown considerably in recent years. In In a Class of Their Own: A Detailed Examination of Avian Forms and Functions, this variation is explained in great detail, beginning with an overview of avian evolution and continuing with information about the structure and function of the avian skeleton, muscles, and the various body systems. Other chapters focus on avian locomotion (including flight), migration, navigation, communication, energy balance and thermoregulation, and various aspects of avian reproduction, such as nests and nest building, clutch sizes, and parental care. In a Class of Their Own: A Detailed Examination of Avian Forms and Functions will be must reading for anyone, professional or non-professional, who needs or wants to learn more about birds.
Download or read book Ornithology written by Michael L. Morrison and published by Johns Hopkins University Press. This book was released on 2018-09-03 with total page 1017 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wood, Robert M. Zink, Benjamin Zuckerberg
Download or read book Dinosaurs of the Air written by Gregory S. Paul and published by JHU Press. This book was released on 2002-05 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book synthesises the growing body of evidence which suggests that modern-day birds have evolved from theropod dinosaurs of prehistoric times. The author argues that the ancestor-descendant relationship can also be reversed.
Download or read book Genetic Diversity of RNA Viruses written by John J. Holland and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many RNA viruses have been known for decades to be genetically and biologically quite variable. Some well-known examples are influenza viruses, foot and mouth disease viruses, and Newcastle disease virus. During the past decade, it has become clear that most, it not all. , RNA viruses (riboviruses and retroviruses) are much more mutable than was recognized previously, and that this great mutability generates extremely complex populations consisting of indeterminate mixtures of related variants (Le. , "mutant swarms" or "quasispecies" populations). This is also true of DNA viruses (such as hepatitis DNA genomes via RNA transcripts B virus) which replicate their that are reverse-transcribed back to DNA. This hypermutability of RNA replicons provides great biological adaptability for RNA virus genomes. It also allows (but does not necessitate) RNA viruses, so that they can extremely rapid evolution of evolve over a million times more quickly than their eukaryotic DNA-based hosts. The genetics of RNA replicons is so unusual (and often counterintuitive) that it has many important biological conse quences which are neither readily apparent nor widely under stood. Failure to understand the distinctive aspects of RNA genetics frequently generates confusion and controversy and can adversely impact vaccine and antiviral drug programs and other applications of medical virology. The 14 chapters in this volume describe advances in a number of significant areas of RNA virus genetics and evolution.
Download or read book Manual of Ornithology written by Noble S. Proctor and published by Yale University Press. This book was released on 1993-01-01 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Here is a volume that has no parallel. . . . A good reference book for those interested in the details of avian anatomy."--Science Books & Films "A gold mine of facts. . . . Every library and biology department, as well as every birder, should have a copy close at hand."--Roger Tory Peterson, from the foreword One of the most heavily illustrated ornithology references ever written, Manual or Ornithology is a visual guide to the structure and anatomy of birds--a basic tool for investigation for anyone curious about the fascinating world of birds. A concise atlas of anatomy, it contains more than 200 specially prepared accurate and clear drawings that include material never illustrated before. The text is as informative as the drawings; written at a level appropriate to undergraduate students and to bird lovers in general, it discusses why birds look and act the way they do. Designed to supplement a basic ornithology textbook, the Manual of Ornithology covers systematics and evolution, topography, feathers and flight, the skeleton and musculature, and the digestive, circulatory, respiratory, excretory, reproductive, sensory, and nervous systems of birds, as well as field techniques for watching and studying birds. Each chapter concludes with a list of key references for the topic covered, with a comprehensive bibliography at the end of the volume.
Download or read book Proceedings of the 5th IEEE IFToMM International Conference on Reconfigurable Mechanisms and Robots written by Fengfeng (Jeff) Xi and published by ReMAR2021. This book was released on 2021-08-12 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 5th IEEE/IFToMM International Conference on Re-configurable Mechanisms and Robots (ReMAR 2021) was held in Toronto, Canada on August 12-14, 2021 at Ryerson University. The conference proceedings include more than 70 papers on three main subjects, 1) Reconfigurable Mechanisms and Robotics, 2) Variable Topology and Morphing Mechanism, and 3)Origami and Bio-inspired mechanisms.
Download or read book Strickberger s Evolution written by Brian K. Hall and published by Jones & Bartlett Publishers. This book was released on 2011-06-07 with total page 779 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thoroughly updated and reorganized, Strickberger's Evolution, Fourth Edition, presents biology students with a basic introduction to prevailing knowledge and ideas about evolution, discussing how, why, and where the world and its organisms changed throughout history. Keeping consistent with Strickberger's engaging writing style, the authors carefully unfold a broad range of philosophical and historical topics that frame the theories of today including cosmological and geological evolution and its impact on life, the origins of life on earth, the development of molecular pathways from genetic systems to organismic morphology and function, the evolutionary history of organisms from microbes to animals, and the numerous molecular and populational concepts that explain the earth's dynamic evolution. Important Notice: The digital edition of this book is missing some of the images or content found in the physical edition.
Download or read book Birds of the World written by Frank Hall Knowlton and published by . This book was released on 1909 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Set forth in non-technical language the salient facts regarding the birds of the world ... Every family has been reviewed ... The treatment of the so-called game birds, both aquatic and non-aquatic, has purposely been made very full ... Main attention has been given to the birds as they appear in their homes--that is, their plumage, habits, songs; nests and eggs, food, etc."--Preface. 233 illustrations--color and black & white photographs, line drawings. Indexed.
Download or read book A Field Guide to Mesozoic Birds and Other Winged Dinosaurs written by Matthew P. Martyniuk and published by Pan Aves. This book was released on 2012 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: A field guide to mesozoic birds and other winged dinosaurs is a comprehensive guide to the diverse species comprising the evolutionary transition from the first dinosaurs with true, feathered wings in the mid-Jurassic period, 160 million years ago, to the late Cretaceous period and the first modern birds [...]. --from publisher.
Download or read book Book of Birds written by John Faaborg and published by Texas A&M University Press. This book was released on 2020-11-11 with total page 781 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Book of Birds: Introduction to Ornithology, John Faaborg, renowned expert on avian ecology and conservation, brings a fresh and accessible sensibility to the study of ornithology. In this beautifully illustrated volume, Faaborg’s approachable writing style will engage students and birders alike while introducing them to the study of the evolution, taxonomy, anatomy, physiology, diversity, and behavior of birds. With its unique focus on ecology, the text emphasizes birds’ relationships with the environment and other species while showing the amazing diversity of avian life. Faaborg pays special attention to the roles that competition, community structure, and reproductive behavior play in the astonishingly varied and interesting lives of birds seen around the world. He discusses variations in anatomy, morphology, and behavior; explains why such vast diversity exists; and explores the ways in which different birds can share the same spaces. Artist Claire Faaborg brings the science behind this diversity to life through her unique, hand-drawn artwork throughout the book. Combining vibrant visuals and knowledgeable insights, Book of Birds offers readers a firm foundation in the field of ornithology and an invaluable resource for understanding birds from an ecological and evolutionary perspective.
