Evolution in the Genus Bufo PDF Download

Author: W. Frank Blair
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 492

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Author: Wouter Beukema
Publisher:
ISBN: 9781775571766
Category : Amphibians
Languages : en
Pages : 60

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Author: Jacques Blondel
Publisher: Oxford University Press, USA
ISBN: 0198500351
Category : Biology
Languages : en
Pages : 352

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The Mediterranean is an outstanding 'hot-spot' of biological diversity. It is exceptional not only for this, but also because of its long history of interactions between its human inhabitants and the other fauna and flora of the region. The cradle of many civilizations, the Mediterranean region has been host to humans for thousands of years. This book is the first to synthesise our current understanding of the ecology, biology, and geology of Mediterranean animals, birds, and plants, and their habitats. The authors focus on the unique historical determinants and spatial patterns of Mediterranean biodiversity. In particular, the dramatic impacts of long-term human activities on the region's landscapes, flora, and fauna, are considered. This fascinating story will be of interest to researchers and students in ecology, biology, conservation, and geography, as well as to naturalists, and ecotourists visiting this popular holiday region.

Author: Daniel Escoriza
Publisher: Academic Press
ISBN: 9780128154762
Category : Nature
Languages : en
Pages : 0

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Book Description
Amphibians of North Africa is a comprehensive compilation of available data on the amphibians and reptiles found in various ecosystems across North West Africa and parts of the Mediterranean region. It is essential to identifying and understanding the ecological role of regional herpetofauna and its conservational importance. It examines the biological origins and diversity of amphibians in North Africa, along with their diverse ecosystems, including deserts, grasslands and subtropical forests. The book features detailed descriptions of the adult and larvae stages of species, such as the North African fire salamander, the common painted frog, Brongersma's toad and the Mediterranean tree frog. This book is a vital resource for herpetology and ecology students and researchers, helping them identify, understand and conserve these amphibians and reptiles in their various habitats across the North African and Mediterranean regions.

Author: Michael J. Lannoo
Publisher: Univ of California Press
ISBN: 9780520235922
Category : Nature
Languages : en
Pages : 1124

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Book Description
Documents in comprehensive detail a major environmental crisis: rapidly declining amphibian populations and the disturbing developmental problems that are increasingly prevalent within many amphibian species.

Author: Peter van der Sleen
Publisher: Princeton University Press
ISBN: 1400888808
Category : Nature
Languages : en
Pages : 465

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The Amazon and Orinoco basins in northern South America are home to the highest concentration of freshwater fish species on earth, with more than 3,000 species allotted to 564 genera. Amazonian fishes include piranhas, electric eels, freshwater stingrays, a myriad of beautiful small-bodied tetras and catfishes, and the largest scaled freshwater fish in the world, the pirarucu. Field Guide to the Fishes of the Amazon, Orinoco, and Guianas provides descriptions and identification keys for all the known genera of fishes that inhabit Greater Amazonia, a vast and still mostly remote region of tropical rainforests, seasonally flooded savannas, and meandering lowland rivers. The guide’s contributors include more than fifty expert scientists. They summarize the current state of knowledge on the taxonomy, species richness, and ecology of these fish groups, and provide references to relevant literature for species-level identifications. This richly illustrated guide contains 700 detailed drawings, 190 color photos, and 500 distribution maps, which cover all genera. An extensive and illustrated glossary helps readers with the identification keys. The first complete overview of the fish diversity in the Amazon, Orinoco, and Guianas, this comprehensive guide is essential for anyone interested in the freshwater life inhabiting this part of the world. First complete overview of the fish diversity in the Amazon and Orinoco basins Contributors include more than fifty experts Identification keys and distribution maps for all genera 190 stunning color photos 700 detailed line drawings Extensive and illustrated glossary

Author: Nelson R Cabej
Publisher: Elsevier
ISBN: 012415851X
Category : Science
Languages : en
Pages : 847

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Book Description
This is the first and only book, so far, to deal with the causal basis of evolution from an epigenetic view. By revealing the epigenetic "user" of the "genetic toolkit", this book demonstrates the primacy of epigenetic mechanisms and epigenetic information in generating evolutionary novelties. The author convincingly supports his theory with a host of examples from the most varied fields of biology, by emphasizing changes in developmental pathways as the basic source of evolutionary change in metazoans. - Original and thought provoking--a radically new theory that overcomes the present difficulties of the theory of evolution - Is the first and only theory that uses epigenetic mechanisms and principles for explaining evolution of metazoans - Takes an integrative approach and shows a wide range of learning

Author: Rainer R. Schoch
Publisher: John Wiley & Sons
ISBN: 1118759133
Category : Science
Languages : en
Pages : 564

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Book Description
This book focuses on the first vertebrates to conquer land and their long journey to become fully independent from the water. It traces the origin of tetrapod features and tries to explain how and why they transformed into organs that permit life on land. Although the major frame of the topic lies in the past 370 million years and necessarily deals with many fossils, it is far from restricted to paleontology. The aim is to achieve a comprehensive picture of amphibian evolution. It focuses on major questions in current paleobiology: how diverse were the early tetrapods? In which environments did they live, and how did they come to be preserved? What do we know about the soft body of extinct amphibians, and what does that tell us about the evolution of crucial organs during the transition to land? How did early amphibians develop and grow, and which were the major factors of their evolution? The Topics in Paleobiology Series is published in collaboration with the Palaeontological Association, and is edited by Professor Mike Benton, University of Bristol. Books in the series provide a summary of the current state of knowledge, a trusted route into the primary literature, and will act as pointers for future directions for research. As well as volumes on individual groups, the series will also deal with topics that have a cross-cutting relevance, such as the evolution of significant ecosystems, particular key times and events in the history of life, climate change, and the application of a new techniques such as molecular palaeontology. The books are written by leading international experts and will be pitched at a level suitable for advanced undergraduates, postgraduates, and researchers in both the paleontological and biological sciences.

Author: Kentwood D. Wells
Publisher: University of Chicago Press
ISBN: 0226893332
Category : Science
Languages : en
Pages : 1162

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Book Description
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.

Author: Richard Shine
Publisher: Cornell University Press
ISBN: 9780801482618
Category : Nature
Languages : en
Pages : 238

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Book Description
Drawing on years of experience and an impressive grasp of the literature, Richard Shine covers the day-to-day lives of snakes, discussing their anatomy, evolution, and habitat, and describing their behavior, sex habits, life history, and diet.