Limiting Factors

Condition is abiotic environmental factor that varies in space and time and affects the performance of organism (ex: moving, growth rate, reproductively, and so on). 

Resource is all things consumed (used up) by organism, such as food, oxigen, space and so on. For the example: The death of fish in Medali river, Puri District, Mojokerto Regency, from that problem, we can determine the conditions: pollutant consentration (liquid factory waste) and pH; and the resources: food, water (space) and O2.

Limiting factor: environmental conditions that limit the growth, abundance, or distribution of an organism or a population of organisms in an ecosystem. Condition and resources can be a limiting factor because In part, their tolerance of conditions and their need for certain resources determine the distribution and also abundance of species. The Law said that limiting factor, the factor is most deficient determines the presence or absence of any given organism. The concept of limiting factors also based on : (1) Liebig's Law of the Minimum, which states that growth is controlled not by the total amount of resources available, but by the scarcest resource. (2) Shelford's Law of Tolerance that an organism's success is based on a complex set of conditions and that each organism has a certain minimum, maximum, and optimum environmental factor or combination of factors that determine success.