What is Competition in Biology

Competition in biology is the struggle between organisms for limited resources. Learn more about its types, examples, and impact on ecosystems.


Competition is a fundamental concept in biology that plays a crucial role in shaping ecosystems and influencing the evolution of species. It refers to the struggle between organisms for resources that are in limited supply, such as food, water, space, and mates.

Types of Competition

  • Intraspecific Competition: This type of competition occurs between individuals of the same species. For example, two male lions fighting over a female during mating season.
  • Interspecific Competition: This type of competition occurs between individuals of different species. An example is when a cheetah and a lion compete for the same prey.

Examples of Competition

In the animal kingdom, competition can be observed in various forms. One classic example is the competition between predators and prey. For instance, the cheetah’s speed gives it an advantage in catching prey, while the gazelle’s agility helps it evade predators.

Case Study: Darwin’s Finches

One famous example of competition in biology is the case of Darwin’s finches in the Galapagos Islands. These finches diversified into different species, each specializing in a specific type of food source. This specialization arose due to competition for limited food resources on the islands.

Impact of Competition

Competition can have a significant impact on the populations of species in an ecosystem. It can lead to the extinction of less competitive species or the evolution of new traits that give certain individuals a competitive edge.


Competition is a driving force in biology that shapes the behavior, ecology, and evolution of organisms. Understanding the dynamics of competition is essential for preserving biodiversity and maintaining balance in natural ecosystems.

Leave a Reply

Your email address will not be published. Required fields are marked *