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