Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Download The Evolutionary Functional Morphology Of Snake Like Body Shapes In Squamate Reptiles full books in PDF, epub, and Kindle. Read online The Evolutionary Functional Morphology Of Snake Like Body Shapes In Squamate Reptiles ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author : Gen Morinaga
Publisher :
ISBN 13 :
Total Pages : 346 pages
Book Rating : 4.:/5 (112 download)
Download or read book The Evolutionary Functional Morphology of Snake-like Body Shapes In Squamate Reptiles written by Gen Morinaga and published by . This book was released on 2018 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael Wayne Caldwell
Publisher : CRC Press
ISBN 13 : 1482251353
Total Pages : 300 pages
Book Rating : 4.4/5 (822 download)
Download or read book The Origin of Snakes written by Michael Wayne Caldwell and published by CRC Press. This book was released on 2019-06-28 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents perspectives on the past and present state of the understanding of snake origins. It reviews and critiques data and ideas from paleontology and neontology (herpetology), as well as ideas from morphological and molecular phylogenetics. The author reviews the anatomy and morphology of extant snakes. Methods are also critiqued, including those empirical and theoretical methods employed to hypothesize ancestral ecologies for snakes. The modern debate on squamate phylogeny and snake ingroup phylogeny using molecules and morphology is examined critically to provide insights on origins and evolution. Key Features Important major evolutionary transformation in vertebrate evolution Continuing historical debate in vertebrate paleontology Of wide interest to a core audience of paleontologists, herpetologists, and morphologists Author acknowledged as prominent contributor to debate over snake origins Based on remarkable well preserved fossil specimens
Author : Robert D. Aldridge
Publisher : CRC Press
ISBN 13 : 1439858330
Total Pages : 758 pages
Book Rating : 4.4/5 (398 download)
Download or read book Reproductive Biology and Phylogeny of Snakes written by Robert D. Aldridge and published by CRC Press. This book was released on 2016-04-19 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offering coverage of a wide range of topics on snake reproduction and phylogeny, this comprehensive book discusses everything from primordial germ migration in developing embryos to semelparity (death after reproduction) in the aspic viper. Beginning with a review of the history of snake reproductive studies, it presents new findings on development
Author : David J. Gower
Publisher : Cambridge University Press
ISBN 13 : 1108837344
Total Pages : 489 pages
Book Rating : 4.1/5 (88 download)
Download or read book The Origin and Early Evolutionary History of Snakes written by David J. Gower and published by Cambridge University Press. This book was released on 2022-08-11 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: Latest developments in understanding how, when and where the extraordinary body plan and ecology of snakes evolved from lizard ancestors.
Author : Matthew Christopher Brandley
Publisher :
ISBN 13 :
Total Pages : 520 pages
Book Rating : 4.:/5 (34 download)
Download or read book The Evolution of Snake-like Body Form in Squamate Reptiles and the Phylogeny and Biogeography of the Scincid Genus Plestiodon written by Matthew Christopher Brandley and published by . This book was released on 2008 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Why Does a Trait Evolve Multiple Times Within a Clade?: Repeated Evolution of Snakelike Body Form in Squamate Reptiles written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Richard A. Seigel
Publisher : MacMillan Publishing Company
ISBN 13 :
Total Pages : 552 pages
Book Rating : 4.4/5 (91 download)
Download or read book Snakes--ecology and Evolutionary Biology written by Richard A. Seigel and published by MacMillan Publishing Company. This book was released on 1987 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Christine V. Schmidt
Publisher :
ISBN 13 : 9783510550449
Total Pages : 106 pages
Book Rating : 4.5/5 (54 download)
Download or read book Snake Scale Microstructure written by Christine V. Schmidt and published by . This book was released on 2012 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study investigates whether micromorphological features of the oberhautchen of snake scales show adaptations to the animals' life habit. For the first time, the ventral scale microstructure of 41 snakes belonging to three different families (Pythonidae, Boidae, and Elapidae) is described. Species adapted to four different life habits (terrestrial, fossorial, arboreal, aquatic) were examined using scanning electron microscopy. Snakes (Serpentes) occur almost world-wide and occupy a variety of terrestrial, fossorial, arboreal, and aquatic habitats. Macromorphological adaptations to different life habits, such as body shape and size, are well known from the literature. Previous studies on snake scale microstructure were focused on dorsal scale microstructure. However, in spite of macroscopic similarity of the ventral scale surface among snakes, the ventral surface is extremely important from the functional point of view. Due to the loss of extremities, the epidermis of the ventral scale of a snake is in continuous contact with the substrate. Therefore, there is a special interest in revealing whether certain characteristics of ventral microstructure are determined by the biology of the species or if they reflect phylogenetic relationships. Careful analysis according to the author's newly revised terminology of microstructural features reveals that at least two major patterns of microstructure have evolved within snakes. The first comprises the ancestral microstructural pattern found in most of the snake families examined. The second pattern is derived and has evolved at least twice, independently. These two distinct types are assumed to represent different structural solutions for the same functional demands, such as propulsion generation due to frictional anisotropy, and minimization of wear. Modifications of certain features of these two major patterns appear to correlate with different strategies of habitat occupation. This study is of great interest to biologists studying animal integument, functional morphology, ecomorphology, and evolution of reptiles. In addition, the described diversity of microstructures might inspire surface scientists to mimic similar features in polymer surfaces, in order to generate innovative biologically- inspired surface-active materials with novel properties.
Author : Alexandra Deufel
Publisher :
ISBN 13 :
Total Pages : 336 pages
Book Rating : 4.:/5 (526 download)
Download or read book Evolutionary Functional Morphology of the Prey Transport Apparatus of Elapid and Atractaspidid Snakes written by Alexandra Deufel and published by . This book was released on 2002 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: The extent to which structure defines behavior was tested by examining form and function in the upper jaws of three different types of snakes. Specifically, swallowing (prey transport) was examined in snakes lacking a connection between palatine and pterygoid (two species of Atractaspis) and in elapid snakes with connected palatines and pterygoids but with complex (erector) or simple (dragger) palatines. It was tested if functional interactions among the characters within the functional units producing transport and envenomation result in constraints on the evolution of those functional units. Quantitative analysis of bone movements from video records of feeding behavior and manipulations of anaesthetized animals was combined with reassessment of palatal and related morphology by dissection of preserved specimens. Species within each group of elapids are united by shared characters that differ between groups but produce similar palatine behaviors during transport. In erectors, the palatine attaches to the hypochoanal cartilage, the retractor pterygoideus does not span the mobile palato-pterygoid joint, and palatine erection does not depend on the maxilla but occurs independently. In draggers, the palatine is free from the snout and the retractor pterygoideus spans the palato-pterygoid joint, which is ligamentously connected to the maxilla. Both groups of elapids share with most colubroids a core functional unit of plesiomorphic characters integrated to produce the pterygoid walk involving palatine erection. Structural variations comprise subordinate character sets operating within the thresholds of system function. In Atractaspis, structural modification of the palatomaxillary apparatus is associated with a novel unilateral envenomating behavior. The gap between palatine and pterygoid allows maxillary rotation while the palatine remains attached to a stiff snout adapted for a fossorial lifestyle. The long fang precludes pterygoid protraction during transport, resulting in loss of teeth and the pterygoid walk. The different structural arrangements of the upper jaw of elapids have little effect on the basic behavioral properties of the transport functional unit. In Atractaspis, because of participation of structures in both the prey transport and envenomation functional units, strong selection for envenomation resulted in a breakdown of the pterygoid walk prey transport functional unit.
Author :
Publisher :
ISBN 13 :
Total Pages : 181 pages
Book Rating : 4.:/5 (727 download)
Download or read book A New Hypothesis of Squamate Evolutionary Relationships from Nuclear and Mitochondrial DNA Sequence Data written by and published by . This book was released on 2004 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: Squamate reptiles serve as model systems for evolutionary studies of a variety of morphological and behavioral traits, and phylogeny is crucial to many generalizations derived from such studies. Specifically, the traditional dichotomy between Iguania and Scleroglossa has been correlated with major evolutionary shifts within Squamata. We present a molecular phylogenetic study of squamates using DNA sequence data from the nuclear genes RAG-1 and c-mos and the mitochondrial ND2 region, sampling all major clades and most major subclades. Monophyly of Iguania, Anguimorpha, and almost all currently recognized squamate families is strongly supported. However, monophyly is rejected for Scleroglossa, Varanoidea, and several other higher taxa, and Iguania is highly nested within Squamata. Limblessness evolved independently in snakes, dibamids, and amphisbaenians, suggesting widespread morphological convergence or parallelism in limbless, burrowing forms. Amphisbaenians are the sister group of lacertids, and snakes are grouped with iguanians and anguimorphs. Dibamids diverged early in squamate evolutionary history. Xantusiidae is the sister taxon of Cordylidae. Studies of functional tongue morphology and feeding mode have found significant differences between Scleroglossa and Iguania, and our finding of a nonmonophyletic Scleroglossa and a highly nested Iguania suggest that similar states evolved separately in Sphenodon and Iguania, and that jaw prehension is the ancestral feeding mode in squamates.
Author : M. Lässig
Publisher : Springer
ISBN 13 : 3540456929
Total Pages : 340 pages
Book Rating : 4.5/5 (44 download)
Download or read book Biological Evolution and Statistical Physics written by M. Lässig and published by Springer. This book was released on 2008-01-11 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: This set of lecture notes gives a first coherent account of a novel aspect of the living world that can be called biological information. The book presents both a pedagogical and state-of-the art roadmap of this rapidly evolving area and covers the whole field, from information which is encoded in the molecular genetic code to the description of large-scale evolution of complex species networks. The book will prove useful for all those who work at the interface of biology, physics and information science.
Author : Vincent Bels
Publisher : Springer
ISBN 13 : 3030137392
Total Pages : 865 pages
Book Rating : 4.0/5 (31 download)
Download or read book Feeding in Vertebrates written by Vincent Bels and published by Springer. This book was released on 2019-04-23 with total page 865 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides students and researchers with reviews of biological questions related to the evolution of feeding by vertebrates in aquatic and terrestrial environments. Based on recent technical developments and novel conceptual approaches, the book covers functional questions on trophic behavior in nearly all vertebrate groups including jawless fishes. The book describes mechanisms and theories for understanding the relationships between feeding structure and feeding behavior. Finally, the book demonstrates the importance of adopting an integrative approach to the trophic system in order to understand evolutionary mechanisms across the biodiversity of vertebrates.
Author : George R. McGhee, Jr.
Publisher : MIT Press
ISBN 13 : 0262539098
Total Pages : 335 pages
Book Rating : 4.2/5 (625 download)
Download or read book Convergent Evolution written by George R. McGhee, Jr. and published by MIT Press. This book was released on 2011-11-04 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: An analysis of convergent evolution from molecules to ecosystems, demonstrating the limited number of evolutionary pathways available to life. Charles Darwin famously concluded On the Origin of Species with a vision of “endless forms most beautiful” continually evolving. More than 150 years later many evolutionary biologists see not endless forms but the same, or very similar, forms evolving repeatedly in many independent species lineages. A porpoise's fishlike fins, for example, are not inherited from fish ancestors but are independently derived convergent traits. In this book, George McGhee describes the ubiquity of the phenomenon of convergent evolution and connects it directly to the concept of evolutionary constraint—the idea that the number of evolutionary pathways available to life are not endless, but quite limited. Convergent evolution occurs on all levels, from tiny organic molecules to entire ecosystems of species. McGhee demonstrates its ubiquity in animals, both herbivore and carnivore; in plants; in ecosystems; in molecules, including DNA, proteins, and enzymes; and even in minds, describing problem-solving behavior and group behavior as the products of convergence. For each species example, he provides an abbreviated list of the major nodes in its phylogenetic classification, allowing the reader to see the evolutionary relationship of a group of species that have independently evolved a similar trait by convergent evolution. McGhee analyzes the role of functional and developmental constraints in producing convergent evolution, and considers the scientific and philosophical implications of convergent evolution for the predictability of the evolutionary process.
Author : Krystal A. Tolley
Publisher : Univ of California Press
ISBN 13 : 0520276051
Total Pages : 304 pages
Book Rating : 4.5/5 (22 download)
Download or read book The Biology of Chameleons written by Krystal A. Tolley and published by Univ of California Press. This book was released on 2013-11-16 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: They change color depending on their mood. They possess uniquely adapted hands and feet distinct from other tetrapods. They feature independently movable eyes. This comprehensive volume delves into these fascinating details and thorough research about one of the most charismatic families of reptilesÑChameleonidae. Written for professional herpetologists, scholars, researchers, and students, this book takes readers on a voyage across time to discover everything that is known about chameleon biology: anatomy, physiology, adaptations, ecology, behavior, biogeography, phylogeny, classification, and conservation. A description of the natural history of chameleons is given, along with the fossil record and typical characteristics of each genus. The state of chameleons in the modern world is also depicted, complete with new information on the most serious threats to these remarkable reptiles.
Author : Alessandro Minelli
Publisher : Springer Science & Business Media
ISBN 13 : 3642361609
Total Pages : 530 pages
Book Rating : 4.6/5 (423 download)
Download or read book Arthropod Biology and Evolution written by Alessandro Minelli and published by Springer Science & Business Media. This book was released on 2013-04-11 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: More than two thirds of all living organisms described to date belong to the phylum Arthropoda. But their diversity, as measured in terms of species number, is also accompanied by an amazing disparity in terms of body form, developmental processes, and adaptations to every inhabitable place on Earth, from the deepest marine abysses to the earth surface and the air. The Arthropoda also include one of the most fashionable and extensively studied of all model organisms, the fruit-fly, whose name is not only linked forever to Mendelian and population genetics, but has more recently come back to centre stage as one of the most important and more extensively investigated models in developmental genetics. This approach has completely changed our appreciation of some of the most characteristic traits of arthropods as are the origin and evolution of segments, their regional and individual specialization, and the origin and evolution of the appendages. At approximately the same time as developmental genetics was eventually turning into the major agent in the birth of evolutionary developmental biology (evo-devo), molecular phylogenetics was challenging the traditional views on arthropod phylogeny, including the relationships among the four major groups: insects, crustaceans, myriapods, and chelicerates. In the meantime, palaeontology was revealing an amazing number of extinct forms that on the one side have contributed to a radical revisitation of arthropod phylogeny, but on the other have provided evidence of a previously unexpected disparity of arthropod and arthropod-like forms that often challenge a clear-cut delimitation of the phylum.
Author : John C. Murphy
Publisher : iUniverse
ISBN 13 : 1450221270
Total Pages : 421 pages
Book Rating : 4.4/5 (52 download)
Download or read book Secrets of the Snake Charmer written by John C. Murphy and published by iUniverse. This book was released on 2010-04-16 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Note that there is a companion website for this book and it can be seen at: http://secretsofthesnakecharmer.blogspot.com/ Humans and snakes have an intimate and ancient relationship that often revolves around either love or hate. Snakes can be seen as gods, spiritual messengers, symbols of fertility, and guardians of resources in virtually all cultures. But to those that fear them, snakes are seen as venomous creatures that cannot be trusted. In Secrets of the Snake Charmer, John Murphy, a research associate of the Division of Amphibians and Reptiles in the Field Museum of Natural History in Chicago, provides an in-depth, twenty-first century look at snakes utilizing the published research of other herpetologists as well as his own personal experiences and speculations. Murphy covers a wide range of topics such as the adaptability of snakes, the ways in which evolution has tinkered with snakes during the last 160 million years, and the impact snakes have on the ecological communities they live in. While sharing ideas about the origin of snakes, rattlesnake rattles, and spitting in cobras, Murphy presents an innovative portrayal of snakes that proves they co-evolve with their prey, predators, and parasites in order to fulfill a significant and novel role in the web of life.
Author : Richard Estes
Publisher : Stanford University Press
ISBN 13 : 9780804714358
Total Pages : 660 pages
Book Rating : 4.7/5 (143 download)
Download or read book Phylogenetic Relationships of the Lizard Families written by Richard Estes and published by Stanford University Press. This book was released on 1988 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:
