Demographics are statistics that describe populations and their characteristics. Demographic analysis is the study of a population based on factors such as age, race, and sex. Demographic data ...

What is a population viability analysis (PVA)? How is one conducted, and what can it tell us about the likelihood that a species will go extinct? The discipline of Conservation Biology has two ...

How do we know if a species is heading towards extinction? Demographics help us understand the size, status, and behavior of populations. Broadly defined, demography is the study of the ...

Pew Research Center’s experts provide analysis of trends shaping the world grounded in ... Ziyao Tian Research Associate Expertise:Demographics and Social Trends, Global Migration and Demography, Race ...

We conduct public opinion polling, demographic research, content analysis and other data-driven social science research. We do not take policy positions. We generate a foundation of facts that ...

“Back in 2008, natural increase — or the difference between births and deaths — accounted for 77% of Indiana’s growth," said ...