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A biotic factor is a living being that has an impact on another population of living things or on the environment. Abiotic factors do the same, but they are not alive. Together, biotic and abiotic factors form an ecosystem. To survive, biotic factors need abiotic factors. In turn, biotic factors can limit the type and amount of biotic factors in an ecosystem. In some cases, biotic factors can prevent abiotic factors from doing their job. Overpopulation of one species can affect abiotic factors and negatively affect other species. Even the smallest organism, such as phytoplankton, can devastate an ecosystem if left to overcrowd. This is evident in „brown algal blooms,” in which an excessive number of algae accumulate on the surface of the water, preventing sunlight from reaching the lower zone, effectively killing all life underwater. On land, a similar situation can be observed when a forest cover grows to cover a large area, effectively preventing the sun from reaching plant life below. The environmental stability of an ecosystem affects the population of species that live in it. Unexpected changes can indirectly alter the food web, as changing conditions make it more or less hospitable and affect whether a particular species will establish itself.

While many abiotic factors occur fairly predictably, some occur rarely or without warning. These include natural events such as droughts, storms, floods, fires and volcanic eruptions. These events can have a huge impact on the environment. As long as they do not occur very frequently or over an area that is too large, these natural events have advantages. When optimally distributed, these events can be very beneficial and rejuvenate the environment. A caveat about abiotic factors: they must come from something that is not alive. For example, organic waste is not alive, but it comes from something that is alive, so it counts as biotic factors, not as abiotic. Abiotic has the common prefix a- which means „not, without”. Just as amoral means „lack of morality,” abiotic etymology means „far from the things that affect life.” My Grade 5 students have been thinking about abiotic and biotic factors in a forest ecosystem. Each group listed plastic, pollution or garbage as an abiotic factor. EACH. BACHELOR.

GROUP. Other examples of biotic factors include cyanobacteria, which are prokaryotic cells capable of producing their food in the presence of sunlight. Cyanobacteria are thought to have evolved from the first prokaryotes that thrived in the absence of atmospheric oxygen. Their ancestors acquired the ability to use the energy of the sun and inorganic gas, that is, carbon dioxide, to release oxygen while making their own food. Initially, ultraviolet rays reached Earth due to lack of oxygen, which made it impossible for DNA to form or survive. When oxygen was finally produced, it was converted into ozone, which accumulated over time and formed a protective layer in the upper atmosphere. Biotic factors are defined as living components or factors that affect an ecosystem or other organisms living in that ecosystem. Bacteria that live in an animal`s gut act as biotic factors that have played the role of helping in the proper digestion of food in the gut. Another example is the population of zebras, antelopes or other animals, which are the biotic factors of lions that hunt and consume them to ensure their survival. A pathogenic virus is also a biotic factor that can affect animal and human populations by causing disease, especially on a large scale.

In addition to pathogenic microbes (pathogens), biotic factors can also include parasites, predators, symbionts, prey, and competitors. 2. How about this diagram? Can you identify the 10 biotic factors in this pond ecosystem? Since it is now clear that the biotic factor refers to a living being, it is obvious that they need a certain amount of energy, food and environment to function properly. They get their energy and food from their environment. In an ecosystem, it is common for one biotic factor to depend on another biotic factor to survive. For example, a deer itself is the biotic factor for predators, but it depends on plants to survive. The abiotic factor is most often used in the context of biology and ecology. Biologists and biochemists can conduct experiments that test the effects of various abiotic factors on a particular entity.

Ecologists can discuss the effects of abiotic factors on an already existing ecosystem. Abiotic factors can be climatic, weather-related or edaphic, soil-related. .