• What is biological competence?
• Examples of proficiency in biology
• Apparent competition
• Mutualism
• Predation
• Other interspecific relationships

We explain what is competence in biology, examples and what is apparent competence. Definition of mutualism and predation.

The competition benefits only its winners and sentences its losers.

What is biological competence?

In biology, we speak of competence, that is, biological competence, to refer to a specific type of relationship between living beings, in which both adapt to the presence of the other trying to obtain the greatest amount of benefit from the available resources, that is, in which both compete for the benefit, instead of collaborating for the mutual good.

This type of interaction can occur in terms of territory, food, Water or even fertile pairs to reproduce, either between individuals of the same species (intraspecific) or of different species (extra specific).

Be that as it may, this dynamic Competition benefits only its winners and sentences its losers to subordination or, in the long run, extinction. The latter is essential in the evolution, since the pressure exerted by the natural selection It occurs under the principle of competitive exclusion: those suitable species survive and reproduce, and those little or not at all suitable, on the other hand, become extinct.

Thus, there are different types of biological competence, such as:

• Competition by interference. An individual interferes, that is, hinders, prevents, the process of feeding, survival or reproduction from another, through methods from violence. It also occurs when an individual denies another entry to their habitat or territory.
• Competition for exploitation. It is a type of indirect competition, which occurs when a limited and common resource between two individuals is the fruit of competition, causing benefit for one and scarcity for the other, be it food, living space or sunlight.
• Apparent competition. It occurs when two species are preyed upon by a common predator, and compete for areas free from danger.

Competition can also cause strategies evolutionary in species, as occurs when one of the two species changes its evolutionary niche in the presence of a stronger competitor, adapting to its presence and guaranteeing its survival.

Examples of proficiency in biology

Dogs often compete for their territory by marking it with urine.

Some simple examples of biological competence are:

• The males of many species of birds carry a plumage of colors flashy, which they use during a complex mating dance. And since several males can pretend to the same female, they must compete for her, trying to attract her with their colors and movements, and thus preventing others from reproducing with her.
• If we sow several plants in the same pot, we can see how they compete day by day for access to the Water from watering and sunlight, even though it means that other plants will wilt and dry out. The winning plant will be able to grow more, taking from the others the resources for the photosynthesis.
• The animals Territorial dogs, like dogs, often compete for their territory, frequently marking it with their urine (and its scent), and also assaulting other dogs, especially males, who enter their territory without permission. This is the most common reason for the street confrontation of our dogs when we take them out for a walk.

Apparent competition

Apparent competition takes place between the prey of the same predator, and its name is due to the fact that its beneficial effects on a species are only temporary. This is explained as follows: Suppose a predator (shark) can feed on two different species (tuna and sea bream), and chooses one of them at a certain time (sea bream). This would mean an apparent benefit for the other (tuna), which has been freed from its competitor and can therefore reproduce in its place.

However, when the population Of this last species (tuna) increases, so will that of the predator (shark), which has abundant food available, and as the population of the prey initially devoured (bream) is smaller, the predator will opt for the other (tuna) , balancing populations. So, at the end of the day, the competition between them wasn't really a competition.

Mutualism

Some birds eat ticks, mites, fungi, or algae from the backs of other animals.

Mutualism is a form of biological interaction contrary to the logic of competition, since in it both species or both individuals benefit from being related. It is a form of mutual and reciprocal help, similar to symbiosis, in which the organisms cooperate.

A simple example of mutualism is the tolerance shown by rhinos, hippos and other massive animals in the presence of certain wading birds on their backs. This is because birds eat ticks, mites, mushrooms or algae that can grow in inaccessible regions of your body, thus doing them a favor by cleaning them, but at the same time obtaining an easy and safe source of food.

Predation

Predation is the relationship between predators and prey, that is, one in which one organism hunts another, in order to consume its meat and thus feed on it. It is the usual way of feeding carnivorous animals, for example, which keeps the population of its prey at bay, avoiding overpopulation and preserving the trophic balance, since predators are always larger and therefore less abundant than prey.

Predators, on the other hand, can in turn be prey to other larger predators, transmitting matter Y Energy towards higher trophic levels in the food pyramid.

Other interspecific relationships

Parasitism occurs when one species benefits from another.

Other important interspecific relationships are:

• Parasitism. It occurs when one species benefits from another, consuming its body substances or using it in different stages of its reproductive cycle, but causing non-lethal damage in the process. For example, it is what happens when mosquitoes bite us to feed on our blood.
• Commensalism. Similar to mutualism, it does not harm any of those involved, but benefits only one species: the other is simply indifferent.This is what happens, for example, when an animal feeds on the waste of another, without necessarily doing it a favor, but also not doing it harm.
• Symbiosis. It is an extreme degree of mutualism, in which the two beneficiary species learn to live so closely on the other that this relationship becomes essential for their survival. The classic example of this is the formation of lichens: physical unions of fungi and algae, in which one obtains food and the other humidity.