Question

6) What are some density dependent and some density independent factors that could together determine the carrying capacity of a species? Be sure in your answer you make it clear which factors are density dependent and which are density independent.

Answer 1

Ans)

Density dependent factors include disease, competition, and predation. Density-dependant factors can have either a positive or a negative correlation to population size. Some of the density dependent factors are:

1) Disease: it is a condition that negatively affects the structure or function of an organism either due to an external injury or a pathogenic attack.

2) Competition: it is an interaction between species or organisms in which both of them will be harmed.

3) Predation: form of symbiotic relationship between two organisms of unlike species out of which one acts like a predator and feeds on other organisms.

Density Independent factors are not influenced by population density change. Density independent factors are:

1) Environmental stressors: environmental stressors are stimuli that cause stress in our environment. Some example include war, noise, etc.

2) Catastrophe: it is a phenomenon in which growing microtubles suddenly loose their GTP-cap and rapidly depolymerize. This is due to thermodynamic instability.