Tropical geometry is a combinatorial shadow of algebraic geometry, offering new polyhedral tools to compute invariants of algebraic varieties. It is based on tropical algebra, where the sum of two numbers is their minimum and the product is their sum. This turns polynomials into piecewise-linear functions, and their zero sets into polyhedral complexes. These tropical varieties ...(展开全部)

Finally, a comprehensive fish identification guide covering the fish-rich reefs of the Pacific. It contains 2,500 underwater photographs of 2,000 species from four of the best marine life authors/photographers in the business. Their collaboration makes it possible for underwater naturalists to identify fishes from Thailand to Tahiti with a single, compact, easy-to-use, no-nonse...(展开全部)

'A bold, ambitious and truly wonderful history of the world' Peter Wohlleben, author of The Hidden Life of Trees 'A fascinating story and a crucial revision of the momentous importance of tropical forests to human history' Lewis Dartnell, author of Origins _________________________ Jungle tells the remarkable story of the world's tropical forests, from the arrival of the first ...(展开全部)

To many of us, tropical forests are the domain of movies and novels. These dense, primordial wildernesses are beautiful to picture, but irrelevant to our lives. Jungle tells a different story. Archaeologist Patrick Roberts argues that tropical forests have shaped nearly every aspect of life on earth. They made the planet habitable, enabled the rise of dinosaurs and mammals, and...(展开全部)

This is the first book to document the origins and early history of environmentalism, concentrating especially on its hitherto unexplained colonial and global aspects. It highlights the significance of Utopian, physiocratic and medical thinking in the history of environmental ideas. The book shows how the new critique of the colonial impact on the environment depended on the em...(展开全部)

This is the first book to document the origins and early history of environmentalism, concentrating especially on its hitherto unexplained colonial and global aspects. It highlights the significance of Utopian, physiocratic and medical thinking in the history of environmental ideas. The book shows how the new critique of the colonial impact on the environment depended on the em...(展开全部)

Most Africans live in rural areas and derive their incomes from farming; but because African governments follow policies that are adverse to most farmers' interests, these countries fail to produce enough food to feed their populations. Markets and States in Tropical Africa analyzes these and other paradoxical features of development in modern Africa and explores how government...(展开全部)

Ecology and Power in the Age of Empire provides the first wide-ranging environmental history of the heyday of European imperialism, from the late nineteenth century to the end of the colonial era. It focuses on the ecological dimensions of the explosive growth of tropical commodity production, global trade, and modern resource management strategies that still visibly shape our ...(展开全部)