Biomes are defined as a large, distinctive complex of plant communitiescreated and maintained through climate.
Biomes are ecological areas – plantsand animals. Abiotic factors are what characterizes a certain biome. Abioticfactors are non-living factors such as climate, pH, temperature, and etc.Abiotic factors in one way dictate the kind of organisms that thrive in thebiome, only those that are able to adapt there are those that can thrive. Abiome differs from an ecosystem.
An ecosystem includes both biotic and abioticfactors in a certain area, and how these factors interact with each other.While biomes would include the abiotic and biotic factors that a geographicarea would include the organisms living in there.Botanists, ecologists, biologists, anthropologists, and climatologists,classify biomes in different ways.
Some classifies them into 6 types of biomes.These are Tundra, Grassland, Forest, Desert, Marine, and Freshwater. Otherscientist classifies them into different biomes, these are Tropical rainforest,Deciduous forest, and Taiga.Tundra is known as the coldest type of biomes, andalso has two types: Arctic Tundra and Alphine Tundra. Grasslands are lands dominated with hectares of grass thantress. Desert is characterized as the hot and dry, coastal, semiarid, andlastly cold. Marinebiomes cover the ¾ surface of earth. Freshwater, have less than 1% of saltconcentration.
Taiga, on the other hand, is thelargest biome in the world and can be found in cold regions. Deciduous forests,known as the most notable because they can survive 4 seasons and they can befound in Eastern US, China, Canada, Europe, and Japan. Tropical rainforestoccur in areas of tropical rainforest climate in which there is no dry season –all months have an average precipitation of at least 60 mm – and may also bereferred to as lowland equatorial evergreen rainforest. Autotrophic organisms can subsist in anexclusively inorganic environment because they can manufacture their owncomplex organic compounds from inorganic raw materials taken from thesurrounding media. Since the molecules of these raw materials are small enoughand soluble enough to pass through cell membranes, autotrorophic organisms donot need to pretreat, or digest their nutrients before takingthem into their cells.Heterotrophic organisms mostly bacteria, fungi,and animals are incapable of manufacturing their own complex organic compoundsfrom simple inorganic nutrients. Hence they must obtain prefabricated moleculesfrom the environment. Many of the organic molecules found in nature are toolarge to be absorbed unaltered through cell membranes, and they must first bebroken down into smaller, more easily absorbable molecule unitsand they must be digested.
Autotrophs and Heterotrophs can be found in biomes, since biomes aregeographic area that has an organisms living in there. Autotrophs, obtainschemical energy through oxidation to make an organic substance from aninorganic substance, through the use of photosynthesis which utilizes lightenergy and by obtaining nutrients. While Heterotrophs, depend on autotrophs fororganic substance since it’s organism are unable to produce organic substancefrom inorganic ones. Heterotrophs depend on autotrophs for organic substances,which heterotrophs will utilize to produce energy.
Both play an essential rolesin food chains and nutrient cycling.The absence of one member or one abiotic factor can affect all theparties of the ecosystem. It is because, biotic members of an ecosystem,together with their abiotic factors depend on each other. Ecosystems are thefoundations of the biosphere and they determine the health of the entire earthsystem. It is a vital life-support that provide services to human life, itswell-being and to social development.
Unfortunately, ecosystems have beendisrupted and even destroyed by natural calamities such as floods, earthquakes,storms and volcanic eruptions. Abuse of human activities or human actions tothe environment have also contributed to the disturbance of many ecosystems andbiomes.