Published online by Cambridge University Press: 05 June 2012
Introduction
The relationship between demography and evolution is close and long-standing. After all, it was by reading Malthus' (1798) essay on population that both Darwin and Wallace achieved their insight into natural selection. The importance of demography for anthropological genetics continues to be strong. Anthropological genetics, concerned with understanding the patterns and causes of genetic variation within and among populations, depends on anthropological demography to provide data on population sizes and fluctuations, mating structure, and migration patterns and histories that are crucial for that understanding.
While demographers study many aspects of human populations (Preston et al., 2001; Siegel and Swanson, 2004), anthropological demography usually focuses on small-scale populations and is often linked with studies of human biology. Anthropological demographic studies have been undertaken expressly to provide information necessary to understand genetic variation.
Demography is the study of human population. More specifically, as the classic definition states: ‘Demography is the study of the size, territorial distribution, and composition of population, changes therein, and the components of such change’ (Hauser and Duncan, 1959: 31). The size and composition of a population is caused by three fundamental factors: fertility (births), mortality (deaths), and migration (in-migration and out-migration). The discipline of demography has historically emphasized measurement and description of these vital processes, usually at the macro level of the national population. It is generally the population characteristics of countries that are analysed and compared (e.g. see Keyfitz and Fleiger, 1968).
To save this book to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Find out more about the Kindle Personal Document Service.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.