Savanna

Author: Peter A. Furley

Publisher: Oxford University Press

ISBN: 0198717229

Category: History

Page: 176

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Savannas form one of the largest and most important of the world's ecological zones. Covering one fifth of the Earth's land surface, they are home to some of the world's most iconic animals and form an extremely important global resource for plants and wildlife. However, increasing recognition of their land potential means that they are extremely vulnerable to accelerating pressures on usable land. This Very Short Introduction considers savannas as landscapes. Discussing their origin, topography, and global distribution, Peter A. Furley explores the dynamic nature of savannas and illustrates how they have shaped human evolution and movements. He goes on to discuss the unrelenting pressures that confront conservation and management and considers the future for savannas. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.
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International Migration: A Very Short Introduction

Author: Khalid Koser

Publisher: Oxford University Press

ISBN: 0191068268

Category: Social Science

Page: 152

View: 4226

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In recent years, global migration has transformed in terms of its numbers and reach, its political significance, and its impact. The rising rates of international migration have been matched by growing public and media interest around the world. Today, the political and media attention on migration and greater public interest and concern feed into an international debate that is all too often poorly informed and one-sided. This Very Short Introduction looks at the phenomenon of international human migration - both legal and illegal - and offers an objective stance on the topic, and its benefits and challenges. Khalid Koser reveals the opportunities migration presents that must be taken advantage of in the current economic climate, and debunks common myths to demonstrate that society, as we now know it, cannot function without migrants. Using interviews with migrants from around the world, Koser presents the human side of issues such as asylum, human trafficking, migrant smuggling, and the international labour force, inviting readers to come to their own conclusions on the international migration situation today. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.
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Combinatorics: A Very Short Introduction

Author: Robin Wilson

Publisher: Oxford University Press

ISBN: 0191035254

Category: Mathematics

Page: 144

View: 2164

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How many possible sudoku puzzles are there? In the lottery, what is the chance that two winning balls have consecutive numbers? Who invented Pascal's triangle? (it was not Pascal) Combinatorics, the branch of mathematics concerned with selecting, arranging, and listing or counting collections of objects, works to answer all these questions. Dating back some 3000 years, and initially consisting mainly of the study of permutations and combinations, its scope has broadened to include topics such as graph theory, partitions of numbers, block designs, design of codes, and latin squares. In this Very Short Introduction Robin Wilson gives an overview of the field and its applications in mathematics and computer theory, considering problems from the shortest routes covering certain stops to the minimum number of colours needed to colour a map with different colours for neighbouring countries. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.
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