BIOL 1001 Chapter Notes - Chapter 10.2: Exponential Growth, Fecundity, Carrying Capacity
13 Mar 2017
School
Department
Course
Professor
Document Summary
Chapter (cid:1005)(cid:1004). (cid:1006)- populatio(cid:374) de(cid:373)ography: 4 populations affect population size, births, immigration, deaths & emigration. Quantifying thee growth rate: growth rate is change in number of individuals in a population (delta n) per unit (delta t) If no immigration or emigration is occurring, then a populations growth rate is equal to the number of individuals (n) in the populations times the differences between the birth rate per individuals (b) and death rates per individual (d). The differences b/t the death and birth rate per individual is called per capita rate of increase & is symbolized r. If per capita of birth is greater than per capita death, then r (+)- population is growing. If per capita death rate exceeds death death, then r becomes (-)- population declines. Intrinsic rate of increase: when conditions are optimal for species- birth rates are highest & death rates are lowest, r values reaches a maximal value called intrinsic rate of increase (rmax)
