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Reptiles And Amphibians

Author : Belinda Gallagher
language : en
Publisher: Miles Kelly Publishing
Release Date : 2014-06-01

Download Reptiles And Amphibians written by Belinda Gallagher and has been published by Miles Kelly Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-06-01 with Amphibians categories.

ANIMALS. Exactly 100 facts are covered by 100 topics, each with 10 key points that provide a simple but memorable handle on the subject. Fascinating information panels as well as extended captions amplify this quick fire approach. Ages 7+

Reptiles And Amphibians Of The Amazon

Author : Richard D. Bartlett
language : en
Release Date : 2003

Download Reptiles And Amphibians Of The Amazon written by Richard D. Bartlett and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Nature categories.

"The Bartlett's provide a convenient identification guide and reference manual for the reptiles and amphibians most likely to be encountered by visitors to the Amazon basin. It will be of great interest to ecotourists and herpetological hobbyists, and the basic natural history information will be useful to professional biologists who are not specialists in the taxa covered in the book."--Paul E. Moler, Florida Fish and Wildlife Conservation Commission Though travel to the Amazon Basin once was accessible only to the most intrepid explorer, today the region is a popular destination for scores of ecotourists, visitors who are likely to observe 50 species of reptiles and amphibians in just a weeklong trip. Until publication of this illustrated field guide, no book has been available to help identify these delightful, stunning, and sometimes venomous creatures. This handbook offers a colorful, easy-to-use guide to more than 250 of the snakes, lizards, turtles, frogs, and salamanders common to the Amazonian regions of Peru, Brazil, Bolivia, and Colombia. From brightly colored frogs so small they fit on a thumbnail to large poisonous snakes camouflaged by green and brown patterned skin, it features all the more frequently seen species as well as types that are less common, and it also provides basic natural history information. Clear close-up photos accompany text that describes appearance, range, size, and color and lists similar species. For many years the authors have led tours to the rainforest. They travel remote rivers on small boats, bunk in tents pitched on sleeping platforms, and walk seldom-trodden trails, usually finding a herpetologic species new to them on each trip. At times, they were hard-pressed to identify the species they photographed; their fellow travelers have found the task even more difficult. For those who want to attach names and information to their natural surroundings, this new field guide will open up the beautiful and mysterious world of herpetofauna. In addition, students of rainforest ecology will find useful information about the infinite variety of rainforest adaptations, and hobbyists will appreciate hard-to-find information about imported specimens. R.D. Bartlett is the author of many books, including In Search of Reptiles and Amphibians and Popular Boas and Pythons, and has published more than 500 articles about herpetology in such magazines as Tropical Fish Hobbyist, Reptiles, and Reptile and Amphibian. Patricia Bartlett is the coauthor with R.D. Bartlett of numerous books, including A Field Guide to Florida Reptiles and Amphibians. Together they have led herpetology photography tours to many areas of the Amazon Basin.

Antimicrobial Peptides Utility Players In Innate Immunity

Author : Mark W. Robinson
language : en
Publisher: Frontiers E-books
Release Date :

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Antimicrobial peptides (AMPs) represent an ancient group of molecules with diverse functions in innate immunity. To date, more than 1000 naturally-occurring AMPs have been identified which display considerable diversity in their primary sequences, lengths, structures and biological activities. Despite this variability, AMPs are broadly classified according to homologous secondary structures as cathelicidins (linear a-helical peptides), defensins (ß-strand peptides connected by disulfide bonds) and bactenecins (loop peptides). Most, but not all, AMPs are cationic with amphipathic faces. These biochemical properties bestow many peptides with potent antimicrobial activity by facilitating interactions with negatively charged microbial cell membrane components, thereby increasing membrane permeability and resulting in microbial death. Other indirect effects on microbial physiology have been reported including inhibition of DNA/RNA synthesis, impaired protein synthesis and folding, disruption of cell wall formation and inhibition of microbial cell metabolism. Thus, with the spread of antibiotic-resistant microbial pathogens, AMPs have emerged as exciting candidates for next generation anti-infective therapies. However, recent studies suggest that AMPs have evolved other mechanisms of pathogen clearance. Immunomodulation is a novel approach to antimicrobial therapy that centres on boosting host immunity rather than direct microbial killing. This is also an attractive means to treat sepsis and other immune-mediated diseases. Whilst several cationic peptides are under investigation as antimicrobial agents, a select few show a remarkable ability to protect against lethal endotoxaemia and clinically-relevant bacterial infections including methicillin-resistant Staphylococcus aureus (MRSA). The molecular mechanisms responsible for this protection are only beginning to emerge but include prevention of innate cell activation by targeting key stages of bacterial endotoxin-mediated cell signalling. In this research topic, hosted by Frontiers in Molecular Innate Immunity, we aim to highlight key areas of AMP research including peptide diversity, structure-function relationships, antimicrobial activity and mechanisms of immune-modulation. We also aim to stimulate discussion on the emerging therapeutic potential of AMPs including antifungal, antiviral and anticancer applications.

100 Facts Reptiles And Amphibians

Author : Ann Kay
language : en
Publisher: Miles Kelly Publishing
Release Date : 2007

Download 100 Facts Reptiles And Amphibians written by Ann Kay and has been published by Miles Kelly Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Amphibians categories.

Packed with fun activities, quizzes and humorous cartoons. 8 yrs+

The Amphibians And Reptiles Of Costa Rica

Author : Jay M. Savage
language : en
Publisher: University of Chicago Press
Release Date : 2002-08-01

Download The Amphibians And Reptiles Of Costa Rica written by Jay M. Savage and has been published by University of Chicago Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-08-01 with Nature categories.

World renowned for its biological diversity and model conservation system, Costa Rica is home to a wide variety of amphibians and reptiles, from the golden toad to the scorpion lizard and the black-headed bushmaster. Jay M. Savage has studied these fascinating creatures for more than forty years, and in The Amphibians and Reptiles of Costa Rica he provides the most comprehensive, up-to-date treatment of their biology and evolution ever produced. Savage begins with detailed discussions of the natural and cultural history of Costa Rica, setting the stage for a detailed treatment of each of the 396 species of amphibians and reptiles that may be found there. Each species account synthesizes and analyzes everything that is known about the animal's anatomy, behavior, geographic distribution, systematics, and evolutionary history and provides keys for identifying amphibians and reptiles in the field. In addition to distribution maps and systematic and morphological illustrations, the book includes color photographs of almost every known species, many taken by the distinguished nature photographers Michael and Patricia Fogden. Because Costa Rica has played, and continues to play, a pivotal role in the study of tropical biology as well as in the development of ecotourism and ecoprospecting, and because more than half of the amphibians and reptiles in Costa Rica are also found elsewhere in Central America, The Amphibians and Reptiles of Costa Rica will be an essential book for a wide audience of nature lovers, naturalists, ecotourists, field biologists, conservationists, and government planners.

100 Facts On Horses And Ponies

Author : Camilla De la Bédoyère
language : en
Publisher: Miles Kelly Publishing
Release Date : 2008

Download 100 Facts On Horses And Ponies written by Camilla De la Bédoyère and has been published by Miles Kelly Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Horses categories.

100 Facts Horses and Ponies is bursting with fantastic images, fun activities and amazing facts. Children will soon learn everything they need to know about the equine world. 100 Facts Horses and Ponies includes key topics about these hooved mammals in simple numbered facts. Every page features beautiful illustrations and photographs that support a child's understanding of the text. This non-fiction title is a perfect horse book for kids aged 6+ who want to learn more about these majestic animals. Essential topics covered in 100 Facts Horses and Ponies: The early life of a foal and how it develops How to train a horse's natural temperament Similarities between horses, donkeys and mules Examples of 'I don't believe it' fascinating facts: It takes from nine months to one year for a horse to grow a completely new hoof. When a horse gallops, all of its weight is supported by just one slender hoof at time. Akhal-Teke hotbloods have been known to travel over 4000 kilometres in just 84 days, surviving on only a tiny amount of food and water. Horses rarely live to be older than 30 years, but an English draught horse, called Old Billy, is said to have made it to the grand age of 62! Activities to make learning accessible and interactive include: Quiz question: Only three of these words are real names for part of the tack. Find the fakes! Make tasty horseshoes with a packet of bread mix. Once made, shape the dough into horseshoes and bake in the oven Normally we use centimetres and metres as units of measurement, but with horses you use hands. Measure the height of a table using your hands Author: Camilla de la Bedoyere Consultant: Steve Parker Pages: 48 Age: 6+ Dimensions: 9 X 12 Format: Paperback with holographic foil ISBN: 9781842369852

Amphibian And Reptile Adaptations To The Environment

Author : Denis Vieira de Andrade
language : en
Publisher: CRC Press
Release Date : 2017-12-21

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Despite their diversity, amphibians and reptiles share many physiological traits, such as their dependence on external heat sources for body temperature regulation, that are of pivotal importance to their ability to cope with the environment. Considerable variation in physiological capabilities exists in these groups and often can be related to seasonal and geographic differences in environmental parameters. This book provides a comprehensive and integrative view of the interplay between physiology and behavior in amphibians and reptiles, leading to a better understanding of the subject. The book covers topics that have recently been in the spotlight for scientific research on the physiology, behavior, and conservation of amphibians and reptiles. It brings together recent information from a range of disciplines that address critical topics for understanding their biology. As these studies are scattered across articles in specialized journals, this book provides a single and expanded source summarizing such advancements. Amphibian and Reptile Adaptations to the Environment: Interplay Between Physiology and Behavior maintains a solid scientific basis for the biological topics covered. However, it presents the material in a clear and direct manner so that it is accessible even to non-biologists interested in the basic biology, behavior, and ecology of these animals as well as how these elements are connected to their conservation.