Intraspecific struggle: examples and features

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2018-04-01 22:25:11

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The Struggle for existence within the species since ancient times is the main condition of implementation of natural selection. It occurs and at the present stage of development of life. Moreover, it can be observed not only in wild nature but also in society. What is the struggle? Examples and its features will be discussed in our article.

Features intraspecific struggle

Is the smallest taxon of plants and animals. It is treated specimens, similar in morphological and anatomical criteria, which freely interbreed, produce fertile offspring and occupy a certain area. Why between individuals, who have so many similarities, actually, there's a struggle? The thing is that they need the same conditions of life. And within the limits of the locality in which they live, the resources of the habitat is significantly limited. That is why the right to exist have to prove it. Intraspecific struggle, examples of which are discussed in the article, leads to natural selection. Its the result of survival of the fittest.

intraspecific fighting examples

The Struggle for power sources

What can fight individuals of the same species? Primarily for food. Because very often at all its just not enough. They are often peck the weaker relatives, Hirosaki eat egg are all examples of intraspecific struggle for existence. She can wear both an individual and group nature. The famous evolutionist Charles Darwin believed that trophic competition is most acute intraspecific struggle. Examples of her numerous family of wolves protecting its territory from such groups, the gulls were pushed out of nests of smaller birds, trees with a spreading crown absorb a greater amount of solar energy, depriving other plants of conditions for photosynthesis.

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examples of intraspecific struggle for existence

Sexual instinct

During the breeding season in many animals, especially pronounced the competition for mates among individuals of the same species. In nature sufficiently well developed sexual dimorphism. It lies in the morphological differences between female and male belonging to the same species. The latter have a more vivid appearance to attract females. Remember the colorful plumage of the roosters, the bright color of aquarium fish, guppy, elegant peacock tail, luxurious hair of a lion. All these attractive features, only the males of these species. And the more they developed, the more chances to attract a mate. All of these are examples of intraspecific struggle for existence.

intraspecific struggle examples of plants

And some animals adopt radical measures in the struggle to reproduce. Cocks in the truest sense of the word arrange fights, sometimes causing each other serious injuries. Even calm turtles in the mating season are aggressive, engaging in fights. Less aggressive snake. Snakes form the so-called "wedding balls", just disturbing each other. Most male birds attract females by singing. And the stork chooses to nest, knocks on it with his beak and waits for the arrival of his pair.

Area of distribution: who's on first

The territory of growing also under intraspecific struggle. Examples of plants that it enter, quite numerous. Imagine that the part of pine forest burned. After a certain period of time, this place will once again appear young pines. Trees that grow first will have more resources to develop the crown and root system will occupy the dominant position. Even on one plant with large leaves shade the smaller ones, without giving them the opportunity to actively photosynthesize, and hence grow.

The struggle, the examples of which are given in the article leads to a natural selection. She is quite serious, as individuals with the same criteria required the same conditions of life. Intraspecific struggle is manifested in the form of trophic competition, competition for females in mating season, Excel in the development of the territory.


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Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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