how is the j shaped growth model different from the s shaped growth model?
how is the j shaped growth model different from the s shaped growth model?
J – shaped growth model describes a typical situation in which the population growth continues in a high rate until stopped abruptly due to any environmental resistance (resource availability or end of breeding phase). This type of growth is said to be density independent as their growth rate is not dependent upon population density. Some of the insect species and algal blooms show this type of growth curve.
S – shaped or sigmoid growth model describes a situation in which the population density of an organism in a new environment initially grows slowly. As it gets adapted to the new condition the rate increases rapidly. Then it shows declining rate of growth due to increasing competition for food or nestling. The decline in population growth rate continues until it becomes zero. This population growth is said to be density dependent as the growth rate decreases with increase in density of population. Several populations of microorganisms, plants and animals show this type of growth curve.
J – shaped growth model describes a typical situation in which the population growth continues in a high rate until stopped abruptly due to any environmental resistance (resource availability or end of breeding phase). This type of growth is said to be density independent as their growth rate is not dependent upon population density. Some of the insect species and algal blooms show this type of growth curve.
S – shaped or sigmoid growth model describes a situation in which the population density of an organism in a new environment initially grows slowly. As it gets adapted to the new condition the rate increases rapidly. Then it shows declining rate of growth due to increasing competition for food or nestling. The decline in population growth rate continues until it becomes zero. This population growth is said to be density dependent as the growth rate decreases with increase in density of population. Several populations of microorganisms, plants and animals show this type of growth curve.
