Chapter 10: Population Dynamics. Dispersal. Age Structure. A. B. 13. Survivorship. Metapopulation. D. C. E) Population Growth. N t = N o e rt. Exponential Growth. Logistic Growth. Extreme Population Growth I. 1. 2. ZEBRA MUSSEL Native to the Streams of Southern Russia. 3.By rylee-rice
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Population Density. Population density: The number of humans who live in an area, per square mile (or kilometer). Country A has an area of 10,000 square miles. There are 1 million people who live in Country A. # of people ÷ # of square miles = density.
Population Density. Exploring the relationship between population and land area. Population in 2005. The population of the world by the end of 2005 will be approximately 6,464,750,000 people. The population density of the world in 2005 is 48 people per square kilometer. Population in 2050.
Population Density. The number of organisms per unit area. United States or New York City?. Which has a higher population size? Which has a higher population density?. 3 Types of Dispersion. Fig. 4.2 Uniform Clumped Random. What type of dispersion….?. White-tailed deer? Black bear?
Population Density. Population density is total population size per unit of area. Population densities depend on: Interactions within the environment Quality of habitat Density dependent factors Density independent factors
Population Density. Refers to the number of people in a certain area of land Formula to calculate: Population ÷ Land area = # of people / km 2 NL for example: (Population) ÷ (Land Area) = # ppl/ km 2 551,792 ÷ 405,720 km 2 = 1.36 That is there is: 1.36 people/ km 2.
Succession-Population Density. Building a ecosystem and how crowded it gets. Ecosystems are always changing due to natural and human disturbances. As things change old inhabitants die out and new organisms move in.
Brazil's Population Density. Calculate the population density for each of the states in Brazil and sort them into an order…highest down to lowest. Note what the average for the whole of Brazil is. Work out suitable intervals. Describing…. Describe the population density of Brazil.
Describing population density. Some tips Name continents with lots of people Name continents with very few people Name/state where lots of people are clustered together Say where people are spread out. Population pyramid for Chad. Few old people . Narrow top .
Population Density & Population Distribution. Population Density. Which photograph has a high population density?. Population Density. = Total number of people per unit area of land. Calculation of Population Density. Total resident in 1997 = 3736700 Total land area = 647.8 sq km.
Population Pyramids and Population Density Maps. Population. Two useful ways that geographers can graphically display population information include: Population Maps to depict population density Population Pyramids to depict population distribution. Population Density….