Factors affecting biotic potential - population growth, Biology

Factors Affecting Biotic Potential - Population Growth

Biotic potential differs from one species to another e.g., bacterial populations can grow faster than population of oak trees. The rate of reproduction of any individual can be increased in any or all of three following ways:

  1. By producing a large number of offsprings each time it reproduces,
  2. By having a long reproductive life, and
  3. By reproducing as early in life as possible.

Of these three factors, the last one is most important. Let us take an example to understand this. A bacterium neither lives for a long time nor produces many offsprings each time it reproduces. Its reproductive potential is higher than that of a dog because most bacteria can reproduce within an hour after being formed by cell division, whereas a dog is not able to reproduce until it is at least 6 months old. So we can say that shorter the generation time of a species, the higher its reproductive potential. In case of organisms with equal generation time, the number of offsprings produced determines which has higher potential for population growth. Thus the population of a plant that produces 100 seeds a year can potentially grow faster than the population of a plant that produces 10 seeds a year. However, with longer pre-reproductive period, number of offsprings produced does not affect much the biotic potential of a population.

Posted Date: 1/21/2013 1:21:00 AM | Location : United States







Related Discussions:- Factors affecting biotic potential - population growth, Assignment Help, Ask Question on Factors affecting biotic potential - population growth, Get Answer, Expert's Help, Factors affecting biotic potential - population growth Discussions

Write discussion on Factors affecting biotic potential - population growth
Your posts are moderated
Related Questions
Now try to pull the strands apart at the "origin of replication." What happens to the DNA molecule when the ends are restricted

Evidence for Existence of Light and Dark Reactions The process of photosynthesis was known in its bare outline already at the beginning of this century. But the phenomenon wa


what are the animals with respiratory organs?

Tina administered 1 liter of sterile distilled water IV to a patient. Predict the direction (increase, decrease, no change) you would expect Tina's infusion to have produced in the

Urine Normal urine is clear, yellow in colour, slightly acidic. Urine consists of 96% water and 4% solids like urea, uric acid, urates, chlorides, phosphates, oxalates, sulphat

species dynamicsresemble what

Early: Recurrence of angina soon after the patient resumes activities is either due to inadequate 1.evascula1isation or acute graft closure. In the immediate post-operative per

Water loss during excretion In terrestrial animals body water is also lost during excretion of nitrogenous wastes. A number of physiological adaptations have taken place to mi

Question 1: (a) List some differences between a bacteria and a virus? (b) Define‘Swine Flu'. List the main types of ‘Swine Flu' viruses? (c) Describe the preventive measures