Matching Pairs Population EcologyOnline version Matching by Bridget Ward 1 Population Density 2 Density-Independent Factors 3 Dispersion 4 Uniform Population Dispersion 5 Emigration 6 R Strategists 7 K Strategist 8 Clumped Population Dispersion 9 population growth rate (PGR) 10 Carrying Capacity (k) 11 Random Population Dispersion 12 Density-Dependent Factors 13 Immigration 14 Zero population growth (ZPG) Long life span Large body size Reproduce slowly Have few young Provides parental care Ex: humans, elephants Any factor in the environment that does NOT depend on the number of members in a population per unit area Number of Individuals Moving Out of a population Number of Individuals Moving Into a Population The number of organisms in an area occurs when the birthrate equals the death rate Any factor in the environment that depends on the number of members in a population per unit area how fast a given population grows Population Growth Rate = Birth + Immigration – Emigration – Death The maximum population size that can be supported by the available resources the pattern of spacing of a population Short life span Small body size Reproduce quickly Have many young Little parental care Ex: cockroaches, weeds, bacteria
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