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2. Population density - Wikipedia

   en.wikipedia.org/wiki/Population_density

   Population density is the number of people per unit of area, usually transcribed as "per square kilometer" or square mile, and which may include or exclude, for example, areas of water or glaciers. Commonly this is calculated for a county, city, country, another territory or the entire world. The world's population is around 8,000,000,000 [3 ...

3. List of countries and dependencies by population density

   en.wikipedia.org/wiki/List_of_countries_and...

   This is a list of countries and dependencies ranked by population density, sorted by inhabitants per square kilometre or square mile. The list includes sovereign states and self-governing dependent territories based upon the ISO standard ISO 3166-1. The list also includes unrecognized but de facto independent countries.

4. Demographics of the Middle East and North Africa - Wikipedia

   en.wikipedia.org/wiki/Demographics_of_the_Middle...

   The demographics of the Middle East and North Africa (MENA) region show a highly populated, culturally diverse region spanning three continents. As of 2022, the population was around 493 million. [1] The class, cultural, ethnic, governmental, linguistic and religious make-up of the region is highly variable.

5. Mark and recapture - Wikipedia

   en.wikipedia.org/wiki/Mark_and_recapture

   Mark and recapture. Mark and recapture is a method commonly used in ecology to estimate an animal population 's size where it is impractical to count every individual. [1] A portion of the population is captured, marked, and released. Later, another portion will be captured and the number of marked individuals within the sample is counted.

6. Dasymetric map - Wikipedia

   en.wikipedia.org/wiki/Dasymetric_map

   A dasymetric map (from Greek δασύς dasýs 'dense' and μέτρο métro 'measure') is a type of thematic map that uses areal symbols to visualize a geographic field by refining a choropleth map with ancillary information about the distribution of the variable. The name refers to the fact that the most common variable mapped using this ...

7. Demography - Wikipedia

   en.wikipedia.org/wiki/Demography

   The Demography of the World Population from 1950 to 2100. Data source: United Nations — World Population Prospects 2017. Demography (from Ancient Greek δῆμος (dêmos) 'people, society' and -γραφία (-graphía) 'writing, drawing, description') [1] is the statistical study of human populations: their size, composition (e.g., ethnic group, age), and how they change through the ...

8. Population dynamics - Wikipedia

   en.wikipedia.org/wiki/Population_dynamics

   The rate at which a population increases in size if there are no density-dependent forces regulating the population is known as the intrinsic rate of increase. It is d N d t = r N {\displaystyle {\mathrm {d} N \over \mathrm {d} t}=rN} where the derivative d N / d t {\displaystyle dN/dt} is the rate of increase of the population, N is the ...

9. Distance sampling - Wikipedia

   en.wikipedia.org/wiki/Distance_sampling

   Distance sampling is a widely used group of closely related methods for estimating the density and/or abundance of populations. The main methods are based on line transects or point transects. [1][2] In this method of sampling, the data collected are the distances of the objects being surveyed from these randomly placed lines or points, and the ...