Pierce s m eds (3 risultati)

Tapa blanda. Condizione: New. GASS, S. / K. BARDOVI-HARLIG / S. S. MAGNAN / J. WALZ, EDS.: PEDAGOGICAL NORMS FOR SECOND AND FOREIGN LANGUAGE LEARNING AND TEACHING. STUDIES IN HONOUR OF ALBERT VALDMAN. AMSTERDAM, 2002, vi 305 p. , 425 gr. Encuadernacion original. Nuevo. (LA-3-3) 425 gr. Libro.

This impressive work is the first comprehensive account of the vegetation of southern Africa. The region contains a remarkable juxtaposition of different ecosystems, yet it forms a cohesive ecological unit with exceptionally high endemism. The book is divided into three major parts: Part I provides the physiographic, climatic, biogeographic and historical background essential for understanding contemporary vegetation patterns and processes. Part II includes systematic descriptions of the characteristics and determinants of major vegetation units (the major terrestrial biomes, coastal vegetation, freshwater wetlands and marine vegetation). Part III elaborates on selected ecological themes of particular importance including grazing, fire, alien plant invasions, conservation and human use of plants. These are discussed in the context of prevailing paradigms in the international literature. Cambridge. Cambridge University Press. 615 pp., num. b/w figs, paperback gr. 8 [with some markings in the text].…

Whale sharks are the largest of all fishes, fascinating for comparative studies of all manner of biological fields, including functional anatomy, growth, metabolism, movement ecology, behaviour and physiology. These gentle ocean giants have captured the interest of scientists and the imagination of the public, yet their future is uncertain. The conservation status of whale sharks was upgraded to Endangered on the IUCN Red List and the species faces a range of intense threats from human activities. Can these iconic living animals, who have survived for millions of years, survive us? Written by the world s leading experts, Whale Sharks: Biology, Ecology and Conservation is the first definitive volume about the world s biggest fish. Chapters include discussions of satellite-linked tags, used to track whale shark movements; genetic sequencing, to examine evolutionary adaptations; even the use of underwater ultrasound units to investigate the species reproduction. The editors hope that by collating what is known, they can make it easier for future researchers, conservationists, and resource managers to fill some of the remaining knowledge gaps, and provide the information they need to join the team. CRC Press. 327 pp., 44 color & 44 b/w photos and illustrations, tables, paperback gr. 8 [17.5 x 25 cm].…