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This book covers the proceedings of a major 2006 symposium on macropods that brought together the many recent advances in the biology of this diverse group of marsupials, including research on some of the much neglected macropods such as the antilopine wallaroo, the swamp wallaby and tree-kangaroos. More than 80 authors have contributed 32 chapters, which are grouped into four themes: genetics, reproduction and development; morphology and physiology; ecology; and management. The book examines such topics as embryonic development, immune function, molar progression and mesial drift, locomotory energetics, non-shivering thermogenesis, mycophagy, habitat preferences, population dynamics, juvenile mortality in drought, harvesting, overabundant species, road-kills, fertility control, threatened species, cross-fostering, translocation and reintroduction. It also highlights the application of new techniques, from genomics to GIS. Macropods is an important reference for academics and students, researchers in molecular and ecological sciences, wildlife and park managers, and naturalists.
Forest stands are thinned all over the world. Yet, there was hitherto no consistent theory which allowed deriving unambiguous conditions for thinnings as the harvest of trees prior to the rotation age. Renke Coordes closes this gap by proposing a new, more general view on the Faustmann model as the basic investment model in forest resource economics. With the introduction of mutual interdependencies between the trees growing in a stand and the opportunity to harvest trees prior to the rotation age, optimal thinning regimes can be derived and analyzed. The implications of the proposed model are thoroughly discussed against the background of practical forest management decisions. The author closes with adaptations to the problems of the management of mixed, multiple-use and uneven-aged stands and entire forests. In this way, a unified perspective on the management of forests as natural resources is offered.
A theory of rural class conflict. World patterns. Peru: Hacienda and plantation. Angola: The migratory labor estate. Vietnam: Sharecropping.
Vegetables are rich and cheaper sources of vitamins. They supply good taste and palatability, increase appetite, provide fibres for digestion and prevent constipation. They also play an important role in neutralizing acids produced during digestion of proteinaceous and fatty foods and provides valuable roughages which help in the movement of food in intestine. On the other hand, tuber crops are rich sources of carbohydrates, energy and nutrients. No other books are available which deal with various aspects of crop productivity, physiology and post-harvest technology. In the world, many vegetables and tuber crops are grown and harvested for the supplying nutrients to mankind. This book deals with utilization, production technology, water and nutrient management, weed and pest management, disease management, physiological basis of crop productivity, abiotic stress factors affecting crop productivity and post-harvest technology of several vegetables and tuber crops. It deals with pre- and harvest technologies influencing the productivity of both world vegetables and world crops. The book contains an insight, Solanaceous vegetables, cucurbit vegetables, cole crops, leafy vegetables, root and tuber crops, bulb crops, leguminous crops and several other ones. The book will be highly useful to students and researchers working on various aspects of vegetables and tuber crops.