definition of biosphere

The biosphere can be described as the total set of all the ecosystems that take place on planet Earth and that make it up. The biosphere includes not only all living beings, but also the physical environment in which they inhabit and the phenomena that occur in it. Defined by many specialists as the space where life takes place, the biosphere is what makes planet Earth unique in the solar system since it is until today the only place where the existence of life is known. In addition, the notion of biosphere also includes all the relationships that can exist between different living beings and between them and the environment.

Being able to define the biosphere in other terms as the global or planetary ecosystem, we can point out that it is distributed in percentage terms between the oceans and the continents, spaces in which different types of ecosystems and habitats (with very particular characteristics) take place. While in the oceans, most of the existence happens at a more or less superficial level, one can also speak of the deep biosphere, which is the one in which certain types of life develop at the level of the ocean floor.

In these spaces the biomes in which certain types of flora and fauna are spread. Among the existing biomes we can mention the tundra, the taiga, the deserts, the steppes, the biomes temperate and the tropical, among others.

The biosphere is undoubtedly one of the most complex and compelling natural phenomena that we can witness. Of course, its conditions are not given by chance but by the existence of various levels of hierarchy that allow simpler life forms to alternate with more complex forms in an organized way. In this sense, the famous Gaia hypothesis argues that the biosphere itself maintains adequate conditions for its survival and permanence.