Carl H. Ernst – författare

Ernst and Lovich's thoroughly revised edition of this classic reference provides the most updated information ever assembled on the natural histories of North American turtles. From diminutive mud turtles to giant alligator snappers, two of North America's most prominent experts describe the turtles that live in the fresh, brackish, and marine waters north of Mexico. Incorporating the explosion of new scientific information published on turtles over the past fifteen years-including the identification of four new species-Ernst and Lovich supply comprehensive coverage of all fifty-eight species, with discussions of conservation status and recovery efforts. Each species account contains information on identification, genetics, fossil record, distribution, geographic variation, habitat, behavior, reproduction, biology, growth and longevity, food habits, populations, predators, and conservation status. The book includes range maps for freshwater and terrestrial species, a glossary of scientific names, an extensive bibliography for further research, and an index to scientific and common names.Logically organized and richly illustrated-with more than two hundred color photographs and fifty-two maps- Turtles of the United States and Canada remains the standard for libraries, museums, nature centers, field biologists, and professional and amateur herpetologists alike.

Carl and Evelyn Ernst have completely revised their landmark reference Venomous Reptiles of North America to present the most comprehensive review of these animals in years. Volume One of this definitive work presents dramatically improved species accounts of the venomous lizards and elapid and viperid snakes found north of Mexico's twenty-fifth parallel. Volume Two will cover the twenty-one rattlesnakes found in the United States, Canada, and, for the first time, species found only in northern Mexico. Ernst and Ernst have painstakingly researched and verified the highly valuable and detailed information in this volume, including every detail of the lives of these fascinating and sometimes deadly animals. Venomous Reptiles of the United States, Canada, and Northern Mexico provides facts on each animal's diet, reproductive behavior, physiology, ecology, and conservation status. The book also covers details on snakebite, how venom is delivered, venom composition, antivenom production, and medical treatments of envenomation. Each species account includes vivid photographs that aid with identification and detailed maps that show the species range.Venomous Reptiles of the United States, Canada, and Northern Mexico represents the latest research on these animals and includes the most extensive bibliography of literature on the subject. Anyone with an interest in venom, snakes, or herpetology in general will find a wealth of information within the pages of these impressive volumes.

Carl H. and Evelyn M. Ernst have completely revised their landmark reference "Venomous Reptiles of North America" to present the most comprehensive review of these animals in years. The first volume contains species accounts of the venomous lizards and elapid and viperid snakes found north of Mexico's twenty-fifth parallel. Volume 2 of this definitive work covers the twenty-one species of the genus Crotalus found in the United States, Canada, and, for the first time, those found in northern Mexico. Mixing their own research with careful data description and intriguing stories, Ernst and Ernst present the most accurate and interesting view of North America's rattlesnakes available. They provide general background information on Crotalus, including venom delivery systems, how rattles function, what rattlesnakes eat, and what eats rattlesnakes. Additionally, they offer specific and fascinating details, such as observations of rattlesnakes swimming to offshore islands, accounts of male combat bouts, possible "anting" behavior in Crotalus viridis, and the features of the Santa Catalina Island rattleless rattlesnake.Each species account includes vivid photographs, range maps, and explanations of the limits to their respective distribution. Presenting the latest research on venomous reptiles in the United States, Canada, and northern Mexico and featuring an extensive bibliography of literature on the subject, this volume contains a wealth of information for anyone with an interest in venom, snakes, or herpetology in general.