Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
A New Species Of Marsupial Frog Anura Hylidae Gastrotheca From The Cordillera Azul In Peru
Download A New Species Of Marsupial Frog Anura Hylidae Gastrotheca From The Cordillera Azul In Peru full books in PDF, epub, and Kindle. Read online A New Species Of Marsupial Frog Anura Hylidae Gastrotheca From The Cordillera Azul In Peru ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis A New Species of Marsupial Frog (Anura: Hylidae: Gastrotheca) from the Cordillera Azul in Peru by : William Edward Duellman
Download or read book A New Species of Marsupial Frog (Anura: Hylidae: Gastrotheca) from the Cordillera Azul in Peru written by William Edward Duellman and published by . This book was released on 2001 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Marsupial Frogs by : William E. Duellman
Download or read book Marsupial Frogs written by William E. Duellman and published by JHU Press. This book was released on 2015-10-15 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first major synthesis of marsupial frogs, this book is the magnum opus of renowned herpetologist William E. Duellman. This scientific masterpiece reveals many aspects of the lives of marsupial frogs and closely allied genera. Native to Central and South America, these amphibians differ from other frogs in that they protect their eggs after oviposition by either adhering them to the female’s back or placing them in a specialized dorsal pouch (thus the common name, marsupial frog). During mating, the male typically collects the eggs from the female with his feet—often one at a time and always out of water—fertilizes them, and then tucks them into the female’s pouch or attaches them to her back. In some species these eggs hatch as tadpoles, but most emerge as miniatures of the adults. Even among the tadpoles there is remarkable divergence, with some behaving in the typical manner (feeding and metamorphosing), whereas others forego all feeding until they metamorphose. In Marsupial Frogs, William E. Duellman’s synthesis of all that is known about the unique family Hemiphractidae is largely based on decades of his own careful laboratory and field study. He reveals the diversity of exotic color patterns and the frogs' geographic distributions by providing more than 200 photographs, illustrations, and maps. This exceptional tome should find its way into the libraries of serious herpetologists, tropical biologists, and developmental biologists. Included in this book are • A molecular phylogeny of the family Hemiphractidae • A thorough osteological analysis • A review of external morphological features • An overview of the evolution of reproductive modes • A biogeographic synthesis • Keys to genera and species • Diagnosis and thorough description of each species of marsupial frog • Colored physiographic maps depicting species distributions
Book Synopsis Two New Species of Marsupial Frogs (Anura: Hylidae: Gastrotheca) from the Cordillera Oriental in Central Peru by : William Edward Duellman
Download or read book Two New Species of Marsupial Frogs (Anura: Hylidae: Gastrotheca) from the Cordillera Oriental in Central Peru written by William Edward Duellman and published by . This book was released on 2004 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tropical Montane Cloud Forests by : Lawrence S. Hamilton
Download or read book Tropical Montane Cloud Forests written by Lawrence S. Hamilton and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: Until relatively recently the valuable tropical montane cloud forests (hereaf ter usually referred to as TMCFs) of the world had scarcely come under the assaults experienced by the downslope montane and lowland forests. TMCFs are not hospitable environments for human occupation, and their remoteness (except in places near Andean high mountain settlements and in the Ethiopian Highlands) and difficult terrain have given them de facto protection. The ad jacent upper montane rain forests have indeed been under assault for timber, fuelwood, and for conversion to grazing and agriculture for many decades, even centuries in the Andes, but true cloud forest has only come under ex ploitation as these lower elevational resources have disappeared. They have also been "nibbled" at from above where there have been alpine grasslands under grazing pressure. Increasingly now, however, these cloud forest eco systems are being fragmented, reduced, and disturbed at an alarming rate. It is now becoming recognized that steps must be taken rapidly to increase our understanding of TMCF and to achieve their conservation, because: their water-capture function is extremely important to society; • their species endemism is high; they serve as refugia for endangered species being marginalized in these environments by increasingly transformed lower elevation ecosystems; they are relatively little studied; yet, their value to science is extremely high; they have low resilience to disturbance; vii viii Preface and many other reasons, which will be discussed subsequently in this publi cation.
Download or read book Scientific Papers written by and published by . This book was released on 2004 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Zoological Record written by and published by . This book was released on 1870 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biology of Amphibians by : William E. Duellman
Download or read book Biology of Amphibians written by William E. Duellman and published by JHU Press. This book was released on 1994-02 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt: Now reissued in paperback with an updated preface by the authors, Biology of Amphibians remains the standard work in its field.
Book Synopsis Biodiversity, Biogeography and Nature Conservation in Wallacea and New Guinea by : Dmitry Telnov
Download or read book Biodiversity, Biogeography and Nature Conservation in Wallacea and New Guinea written by Dmitry Telnov and published by The Entomological Society of Latvia. This book was released on 2011-08-01 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Amazonia: Landscape and Species Evolution by : Carina Hoorn
Download or read book Amazonia: Landscape and Species Evolution written by Carina Hoorn and published by John Wiley & Sons. This book was released on 2011-09-26 with total page 869 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book focuses on geological history as the critical factor in determining the present biodiversity and landscapes of Amazonia. The different driving mechanisms for landscape evolution are explored by reviewing the history of the Amazonian Craton, the associated sedimentary basins, and the role of mountain uplift and climate change. This book provdes an insight into the Meso- and Cenozoic record of Amazonia that was characterized by fluvial and long-lived lake systems and a highly diverse flora and fauna. This fauna includes giants such as the ca. 12 m long caiman Purussaurus, but also a varied fish fauna and fragile molluscs, whilst fossil pollen and spores form relics of ancestral swamps and rainforests. Finally, a review the molecular datasets of the modern Amazonian rainforest and aquatic ecosystem, discussing the possible relations between the origin of Amazonian species diversity and the palaeogeographic, palaeoclimatic and palaeoenvironmental evolution of northern South America. The multidisciplinary approach in evaluating the history of Amazonia has resulted in a comprehensive volume that provides novel insights into the evolution of this region.
Book Synopsis Marsupial Frogs by : William E. Duellman
Download or read book Marsupial Frogs written by William E. Duellman and published by JHU Press. This book was released on 2015-10-15 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: This exceptional tome should find its way into the libraries of serious herpetologists, tropical biologists, and developmental biologists. Included in this book are- A molecular phylogeny of the family Hemiphractidae- A thorough osteological analysis- A review of external morphological features- An overview of the evolution of reproductive modes- A biogeographic synthesis- Keys to genera and species- Diagnosis and thorough description of each species of marsupial frog- Colored physiographic maps depicting species distributions
Book Synopsis Phylogenetic Systematics of Egg-brooding Frogs (Anura: Hemiphractidae) and the Evolution of Direct Development by :
Download or read book Phylogenetic Systematics of Egg-brooding Frogs (Anura: Hemiphractidae) and the Evolution of Direct Development written by and published by . This book was released on 2015 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: Egg-brooding frogs (Hemiphractidae) are a group of 105 currently recognized Neotropical species, with a remarkable diversity of developmental modes, from direct development to free-living and exotrophic tadpoles. Females carry their eggs on the back and embryos have unique bell-shaped gills. We inferred the evolutionary relationships of these frogs and used the resulting phylogeny to review their taxonomy and test hypotheses on the evolution of developmental modes and bell-shaped gills. Our inferences relied on a total evidence parsimony analysis of DNA sequences of up to 20 mitochondrial and nuclear genes (analyzed under tree-alignment), and 51 phenotypic characters sampled for 83% of currently valid hemiphractid species. Our analyses rendered a well-resolved phylogeny, with both Hemiphractidae (sister of Athesphatanura) and its six recognized genera being monophyletic. We also inferred novel intergeneric relationships [((Cryptobatrachus, Flectonotus), (Stefania, (Fritziana, (Hemiphractus, Gastrotheca))))], the non-monophyly of all species groups previously proposed within Gastrotheca and Stefania, and the existence of several putative new species within Fritziana and Hemiphractus. Contrary to previous hypotheses, our results support the most recent common ancestor of hemiphractids as a direct-developer. Free-living aquatic tadpoles apparently evolved from direct-developing ancestors three to eight times. Embryos of the sister taxa Cryptobatrachus and Flectonotus share a pair of single gills derived from branchial arch I, while embryos of the clade including the other four genera have two pairs of gills derived from branchial arches I and II respectively. Furthermore, in Gastrotheca the fusion of the two pairs of gills is a putative synapomorphy. We propose a revised taxonomy concordant with our optimal topologies.
Download or read book Endless Forms written by Daniel J. Howard and published by Oxford University Press, USA. This book was released on 1998 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: Speciation is one of the great themes of evolutionary biology. It is the process through which new species are born and diversity generated. Yet for many years our understanding of the process consisted of little more than a perception that if populations are isolated geographically, they will diverge genetically and may come to form new species. This situation began to change in the 1960s as an increasing number of biologists challenged the exclusivity of allopatric speciation and began to probe more deeply into the actual process by which divergence occurs and reproductive isolation is acquired. This focus on process led to many new insights, but numerous questions remain and speciation is now one of the most dynamic areas of research in modern evolutionary biology. This volume presents the newest research findings on speciation bringing readers up to day on species concepts, modes of speciation, and the nature of reproductive barriers. It also discusses the forces that drive divergence of populations, the genetic control of reproductive isolation, and the role played by hybrid zones and hybridization in speciation.
Book Synopsis Phylogenetics, Classification, and Biogeography of the Treefrogs (Amphibia: Anura: Arboranae) by : William Edward Duellman
Download or read book Phylogenetics, Classification, and Biogeography of the Treefrogs (Amphibia: Anura: Arboranae) written by William Edward Duellman and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Skull, Volume 2 by : James Hanken
Download or read book The Skull, Volume 2 written by James Hanken and published by University of Chicago Press. This book was released on 1993-09-15 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this authoritative three-volume reference work, leading researchers bring together current work to provide a comprehensive analysis of the comparative morphology, development, evolution, and functional biology of the skull.
Book Synopsis The Ecology and Behavior of Amphibians by : Kentwood D. Wells
Download or read book The Ecology and Behavior of Amphibians written by Kentwood D. Wells and published by University of Chicago Press. This book was released on 2010-02-15 with total page 1162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Consisting of more than six thousand species, amphibians are more diverse than mammals and are found on every continent save Antarctica. Despite the abundance and diversity of these animals, many aspects of the biology of amphibians remain unstudied or misunderstood. The Ecology and Behavior of Amphibians aims to fill this gap in the literature on this remarkable taxon. It is a celebration of the diversity of amphibian life and the ecological and behavioral adaptations that have made it a successful component of terrestrial and aquatic ecosystems. Synthesizing seventy years of research on amphibian biology, Kentwood D. Wells addresses all major areas of inquiry, including phylogeny, classification, and morphology; aspects of physiological ecology such as water and temperature relations, respiration, metabolism, and energetics; movements and orientation; communication and social behavior; reproduction and parental care; ecology and behavior of amphibian larvae and ecological aspects of metamorphosis; ecological impact of predation on amphibian populations and antipredator defenses; and aspects of amphibian community ecology. With an eye towards modern concerns, The Ecology and Behavior of Amphibians concludes with a chapter devoted to amphibian conservation. An unprecedented scholarly contribution to amphibian biology, this book is eagerly anticipated among specialists.
Book Synopsis The Use of Bioacoustics in Anuran Taxonomy, by : Jörn Köhler
Download or read book The Use of Bioacoustics in Anuran Taxonomy, written by Jörn Köhler and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Four Neotropical Rainforests by : Alwyn H. Gentry
Download or read book Four Neotropical Rainforests written by Alwyn H. Gentry and published by Yale University Press. This book was released on 1993-01-27 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: The sites; Floristics; Birds; Mammals; Reptiles and amphibians; Forest dynamics.
