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