Fauna: what is this term?

We all heard the term "fauna". What is this concept? Now let's see in detail.

Definition

So, the fauna ... What is this term? A large explanatory dictionary of the modern Russian language Ushakova argues that this is an animal world, all kinds of animals that are peculiar to a given area or geological epoch. And if you want to describe the fauna of a specific region, the mainland, the island, then pets (that is, those that the man artificially brought into this area or cultivated) are not taken into account. Although in themselves they also belong to this aggregate.

The same applies to insects (they are also fauna), because quite often a person arriving to a new territory for the purpose of mastering or simply traveling, unbeknownst to bring with them adult insects or their larvae, disguised or even disrupting Thus, the "backbone" of the animal world, historically formed in this area. But with this method of distribution, not every type of insect has a chance to survive in a foreign country, if only because of the inappropriate climate.

Collections

Based on geographical criteria, biologists combined fauna representatives into groups, which also joined together on the basis of historical interconnection and common biogeocoenoses (ecosystems). As a result, the world of fauna was clearly classified according to the zonal-continental sign. In scientific circles, such a feature is called geographical. But the animal world of some single continent and a certain latitude can not be regarded as a single cluster. Therefore, it was necessary to extend the chain of animal division: ichthyofauna (fish), avifauna (birds), entomofauna (insects).

But on this "sorting" did not end. The ecological nature of species is the next stage in the classification of fauna, reflecting the lifestyle and behavioral characteristics of each animal species. For example, in flooded areas and in the swampy area, only those who can swim live, and in the subtropical and tropical forests, those who can jump from tree to tree and animals adapted to life on such plants dominate.

So, the fauna ... What is this? What is it? More on this further.

Flora and fauna: what is it?

Very important in the study of the fauna of a given region is the elucidation of the ways and ways of immigration of species to the local group. This, as already said, is to some extent attributed to man, since the intensive development of intercontinental routes of sea and air liners threatens the identity and authenticity of the fauna of different ecosystems.

All described methods and methods of classification and grading, as well as accounting for and preservation of diversity with observance of endemism, equally apply to flora. And what does this concept mean ? Now we'll figure it out. This is a collection of plants growing in a certain territory.

By the way, man is also a representative of the fauna, although he himself calls the apex of evolution, the crowning of the creation of nature. It's all because of the volume of the brain. He is immeasurably greater than the intellect of any other living being. Possessing the gift of speech and the brain, allowing to think and create, that's what distinguishes man from animals.

In general, human activities on Earth can be called creative. But often successes in this turn their heads and cause a rush of ambition and vanity, allowing one to think that the fauna is the property of the person given to it by Heaven. And, adhering to this opinion, for thousands of years people have tamed, ennobled, cultivated many species of animals, which are for him either assistants, or entertainment, or food.

Conclusion

Now you know such concepts as flora and fauna. What are these terms, we have considered in detail. It is safe to say that representatives of these classes fill our world. It is thanks to the flora and fauna that our planet is called alive, because all animals, birds and plants create the biosphere of the Earth.