You may have to Search all our reviewed books and magazines, click the sign up button below to create a free account.
A guide to the freshwater fish of the Southern African subregion. Species descriptions include: a colour painting; symbols indicating uses and conservation status as well as a description of the fish, its habits and habitat. Keys to families, genera and species aid identification.
A comprehensive guide to the fishes of the Okavango Delta and Chobe River, this book offers background information on the diverse aquatic habitats of the region and on fish feeding, breeding and survival strategies. It also provides useful hints for anglers. The species entries describe each fish in detail, with key ID points and information on habits and occurrence. Each account is accompanied by a colour illustration or photograph. The book concludes with information on how best to utilise and conserve the fishes of the delta system and Chobe River. This is the only such guide to fishes of the region and will be invaluable to local and visiting fishermen, naturalists and conservationists, as well as the many tourists who visit this spectacular African paradise.
Invasion ecology is the study of the causes and consequences of the introduction of organisms to areas outside their native range. Interest in this field has exploded in the past few decades. Explaining why and how organisms are moved around the world, how and why some become established and invade, and how best to manage invasive species in the face of global change are all crucial issues that interest biogeographers, ecologists and environmental managers in all parts of the world. This book brings together the insights of more than 50 authors to examine the origins, foundations, current dimensions and potential trajectories of invasion ecology. It revisits key tenets of the foundations of invasion ecology, including contributions of pioneering naturalists of the 19th century, including Charles Darwin and British ecologist Charles Elton, whose 1958 monograph on invasive species is widely acknowledged as having focussed scientific attention on biological invasions.
None
None
None
Kennesaw, called "Big Shanty" during the Civil War, started out in the 1830s as a railroad shanty town during the construction of the Western and Atlantic Railroad. In many ways, Kennesaw is a typical small town in Northern Georgia--it was built along the railroad tracks, cotton was the first engine of economic growth, stagnation occurred from the 1920s to the 1950s, and then it blossomed in the latter part of the 20th century as a suburb of Atlanta--but in other ways, Kennesaw is unique. The Andrews Raid, immortalized by Walt Disney as The Great Locomotive Chase, occurred here in 1862. In 1981, Kennesaw rocked the world when it passed its gun law requiring all households to own an operating firearm and ammunition. While still small, Kennesaw has had its time in the limelight.
This open access multi-authored book presents a 'state of the science' synthesis of knowledge on the biodiversity of Angola, based on sources in peer-reviewed journals, in books and where appropriate, unpublished official reports. The book identifies Angola as one of the most biologically diverse countries in Africa, but notes that its fauna, flora, habitats and the processes that drive the dynamics of its ecosystems are still very poorly researched and documented. This 'state of the science' synthesis is for the use of all students of Angola's biodiversity, and for those responsible for the planning, development and sustainable management of the country's living resources. The volume brings together the results of expeditions and research undertaken in Angola since the late eighteenth century, with emphasis on work conducted in the four decades since Angola's independence in 1975. The individual chapters have been written by leaders in their fields, and reviewed by peers familiar with the region.
Among the fishes. a remarkably wide range ofbiological adaptations to diverse habitats has evolved. As weIl as living in the conventional habitats of lakes. ponds. rivers. rock pools and the open sea. fish have solved the problems of life in deserts. in the deep sea. in the cold Antarctic. and in warm waters of high alkalinity or of low oxygen. Along with these adaptations. we find the most impressive specializations of morphology. physiology and behaviour. For example we can marvel at the high-speed swimming of the marlins. sailfish and warm-blooded tunas. air breathing in catfish and lungfish. parental care in the mouth-brooding cichlids and viviparity in many sharks and toothcarps. Moreov...