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Past attempts to answer this question have ranged widelyfrom less than 1 billion to more than 1,000 billion - one sign that there is no single right answer. More than half of the estimates, however, fall within a much narrower range: between 4 billion and 16 billion. In any case…
Past attempts to answer this question have ranged widelyfrom less than 1 billion to more than 1,000 billion - one sign that there is no single right answer. More than half of the estimates, however, fall within a much narrower range: between 4 billion and 16 billion. In any case…
Past attempts to answer this question have ranged widelyfrom less than 1 billion to more than 1,000 billion - one sign that there is no single right answer. More than half of the estimates, however, fall within a much narrower range: between 4 billion and 16 billion. In any case…
During the 1930s, 23 million peasants left their villages and moved to Soviet cities, where they accounted for almost half of the urban population and more than half of the nation's industrial workers. Drawing on previously inaccessible archival materials, David L. Hoffmann show…
"This book provides a unique synthesis of the methods and techniques available for the study of populations and ecosystems. Techniques used to obtain both absolute and relative population estimates are described, and approaches to the direct measurement of births, deaths, migrat…
The Sicán polity (AD 750 - 1375) developed in the middle La Leche Valley on the north coast of Peru. This dissertation presents the results of a comprehensive program of fullcoverage high-resolution pedestrian survey, with systematic surface collections and architectural mapping…
Monitoring the distribution, abundance and demography of species is vital to ensure that conservation efforts are appropriate and effective. Monitoring enables evaluation of responses to natural or human disturbance, highlights the need for management interventions and enables t…