Kategoria BISAC: Nature >> Reference

Did you know that a groundhog is really a type of squirrel? That squirrels control their body temperature with their tails? That most squirrels have yellow-tinted eye lenses that work like sunglasses to reduce glare? That tree squirrels can turn their hind feet completely around when climbing down a tree head-first? In Squirrels: The Animal Answer Guide, Richard W. Thorington Jr. and Katie Ferrell unveil the fascinating world of one of the -most watched- mammals on the planet.

The diversity of squirrels is astounding. There are 278 species that inhabit all continents except...

"A major source of information on the plants of Florida which will be the standard reference for years to come."--Rolla Tryon, professor emeritus of biology, Harvard University

"This important addition to the botanical literature of Florida and the eastern United States will be welcomed by professional and amateur botanists and field biologists throughout the region."--Gil Nelson, Florida State University

Flora of Florida, Volume I, is the first of a proposed eight-volume comprehensive reference to the more than 3,800 vascular plants, native and non-native, known to...

Kentucky has been a place of great botanical interest for many years. This comprehensive volume lists more than 3,000 plant species and varieties, with complete information on distribution in the state, and reveals the current condition of botanical knowledge on Kentucky flora.

With its dense forests and plentiful rainfall, West Virginia and the rest of the Central Appalachian region is an almost perfect habitat for hundreds of varieties of wild mushrooms. For the mushroom hunter, this vast bounty provides sheer delight and considerable challenge, for every outdoor excursion offers the chance of finding a mushroom not previously encountered. For both the seasoned mycologist and the novice mushroom hunter, Mushrooms of West Virginia and the Central Appalachians serves as a solid introduction s of the region. Some 400 species are described and illustrated...

Coastal wetlands are among our most important fish and wildlife habitats. For example, over two-thirds of our recreationally and commercially important marine fishes depend on coastal marshes and associated waters for nursery and spawning grounds.

This book is arranged in four major sections: (1) Coastal Wetland Ecology: A General Overview, (2) Identification of Coastal Wetland Plants, (3) Wetland Plant Descriptions and Illustrations, and (4) Places to Observe Coastal Wetlands, and (5) Sources of Other Information. In addition, a list of references used in preparing this book and a...

Tidal wetlands are a dominant landscape feature of the coastal zone in the southeastern United States. These wetlands are largely colonized by salt-tolerant plants forming salt and brackish marshes or mangrove swamps, or by other water-tolerant species in tidally influenced freshwater areas. Anyone driving to southern beaches is likely to have crossed coastal wetlands on the trip, since these wetlands often stretch for miles between barrier island beaches and the mainland. Oftentimes, people, both young and old, can be seen fishing or crabbing from bridges crossing tidal rivers or creeks....

Ohio was once covered by a thick forest and populated by a great variety of animals, but the first blows of settlers' axes heralded cataclysmic changes. By 1900 only about 15 percent of the state remained tree-covered. The effects of settlement upon native animal species varied widely, and the fortunes of many have risen and fallen more than once.

Large predators such as wolves, panthers, and bears disappeared early, as did big herbivores such as bison and elk. Hunters and trappers drove many furbearers out of existence, though wildlife managers have successfully reintroduced beaver...

Taking students out of the classroom and into a variety of settings, ranging from remote wilderness sites to urban or built environments is now recognized as a valuable means of teaching ecological concepts and environmental values. But field studies are also a way of encouraging explorations across the curriculum, enhancing the teaching of life sciences, literature, and creative writing.

Teaching in the Field is the first volume to specifically survey field studies conducted through colleges and universities. The essays, arranged into three sections, offer rationales,...