Example of Biotic Component of the Environment

Biotic component of the environment consists of al living organisms that interact with each other. The biotic component of an ecosystem consists of producers, consumers and decomposers.  

Examples of biotic components of the environment are as follows:

Producers
Producers are the most important components in an ecosystem. The producers directly depend upon the abiotic components for the survival and production of nutrients. All green plants are examples of producers in an ecosystem. Green plants are chief producers of energy in nature which is utilized by other living organisms. Green plants, by the process of photosynthesis produce energy in the form of high energy compound ATP and also starch. The green plants have the green pigment chlorophyll which helps them trap energy from the sun and convert it into chemical energy and store them in their body tissues. Other than green plants being producers, photosynthetic bacteria and chemosynthetic bacteria are two autotrophic organisms in the ecosystem that are producers. Producer form the first level in the food web and food chains in the ecosystem.

Example of producers: Green plants, photosynthetic bacteria (Chromatium and Cyanobacteria) and chemosynthetic bacteria (Sulphur bacteria and Iron bacteria). Phytoplanktons are producers in aquatic ecosystem.

Consumers
The components of the ecosystem which depend on the producers or autotrophs for their food are known as consumers. Consumers are also known as heterotrophs. Heterotrophs are animals that do not produce their own food but depend on other organisms for their food. Examples of consumers are all animals and some plants.

There are different types of consumers:

Primary consumers: Example - Herbivorous animals like cow, rodents, deer, elephants, goats, etc.
Primary consumers in aquatic ecosystem are crustaceans, molluscs and certain kinds of fish which feed on phytoplankton.
Secondary consumers: carnivorous animals and omnivorous animals belong to this category of consumers. These animals feed on herbivorous animals. Example - Crow, fox, sparrow, wolves, dogs, cats, snakes, etc.
Tertiary consumers: These organisms are strictly carnivorous animals. Example - Lions, tigers, vultures, cheetah, etc.

Decomposers: These organisms transform organic substances into inorganic or simple substances. Example - Saprophytic fungi (Rhizopus (bread mould), mucor (pin mould, agaricus (mushroom) and yeast; and bacteria.

Parasites: These organisms infect and survive on the host ecosystem. Example - Wide range of parasites are found; like various types of bacteria, fungi,  a few flowering plants, most of the protozoans, insects and nematodes are parasitic.

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From Wikipedia

Biotic component

Biotic components are the living things that shape an ecosystem. A biotic factor is any living component that affects another organism, including animals that consume the organism in question, and the living food that the organism consumes. Biotic factors include human influence.

Biotic components are contrasted to abiotic components, which are non-living components of an organism's environment, such as temperature, light, moisture, air currents, etc.

Biotic components usually include:

  • Producers, i.e. autotrophs: e.g. plants; they convert the energy (from the sun, or other sources such as hydrothermal vents) into food.
  • Consumers, i.e. heterotrophs: e.g. animals; they depend upon producers for food.
  • Decomposers, i.e. detritivores: e.g. fungi and bacteria; they break down chemicals from producers and consumers into simpler form which can be reused.


From Encyclopedia

Environment Environment

The term "environment" means the surroundings of a living creature. It can also refer to all the factors of the external world that affect biological and social activities. There are abiotic (nonliving) environmental factors such as sunlight, air, and water. There are also biotic (living or recently living) environmental factors such as plants, animal predators, and food. The total environment of an organism is the sum total of the biotic and abiotic environments. The study of the relationships between living creatures and their environments is called ecology. A human's abiotic environment includes things such as weather (sun-light, wind, air temperature) and items which give protection from the weather (clothes or houses). Other abiotic factors are the soil and water, and chemicals in the soil and water. A human's biotic environment includes things such as food (plants and animals), other humans, animals, trees, and grasses. The biotic environment also includes how living creatures interact with each other and their abiotic environments. Therefore, a human's biotic environment also consists of social or cultural surroundings. Humans learn from each other how to behave in socially acceptable ways. They also pass along knowledge about language, science, and art. The major components of Earth's physical environment are the atmosphere, climate and weather, land, and bodies of water such as lakes, rivers, and oceans. The term "environment" is commonly associated with the impact that humans have made on the natural world. Increasing human population and industrial activities have led to problems associated with the pollution of air, water, and soil. Pollution has a negative impact on humans in terms of health and quality of life, as well as on other animals and plants. Human activities such as the dumping of industrial wastewater and poorly treated sewage water have led to the pollution of fresh and salt water. Groundwater, water beneath the land surface that often serves as drinking water for humans, has also been negatively affected. Accidental oil spills from ships and untreated storm-water runoff from urban and agricultural areas also degrade bodies of water. Air pollution results from human activities such as burning fossil fuels (oil, coal, and gasoline) to create electricity and power automobiles, and manufacturing industrial products such as chemicals and plastic. Burning fossil fuels releases carbon dioxide into the atmosphere, adding billions of extra tons of carbon to the natural carbon cycle. Deforestation and poor soil management also add carbon. Most scientists believe that the increased carbon dioxide in the atmosphere contributes to the potentially devastating warming of the global climate, the so-called "greenhouse effect." Another human impact on the atmosphere has been depletion of the ozone layer. The ozone layer helps filter ultraviolet light and protects Earth's surface from harmful doses of radiation. Many scientists believe that chlorofluoro-carbons used as coolants in air conditioners and refrigeration units destroy ozone when released into the atmosphere. Land pollution is caused by poor agricultural practices, mining for coal and minerals, and dumping industrial and urban wastes. The widespread usage of pesticides has led to pollution of both soils and bodies of water. As more and more environmental problems become evident, humans will have to assess their activities and their impact on the natural world. see also Biome; Ecosystem; Habitat. Denise Prendergast


From Yahoo Answers

Question:

Answers:Nitrogen fixing bacteria can convert nitrogen in the atmosphere into nitrates. (Biotic factor-bacteria...abiotic factors-nitrogen gas in the air and nitrates in th soil) In this case, the bacteria can affect the amt of nitrates in the soil as well as, to a lesser extent, the nitrogen in the air. Two other similar bacteria are nitrifying bacteria (which convert nitrogen cmpds into nitrates) and denitrifying bacteria (which convert nitrogen cmpds into nitrogen gas) All animals also contribute to the amount of carbon dioxide in the air by respiration. If you want to take it to the extreme, you probably can say that in forests (and even streams in which eutrophication is an issue) the taller plants affect the amount of light available to the smaller/shorter plants beneath. Temperature of an area (eg in a rainforest vs a dessert) is affected by the degree of sheltering from trees. I can think of a bunch of similar examples but I don't want to bore you with too many words. l.o.l. Hope this helped!

Question:

Answers:Transpiration from the leaves of plants have a cooling effect and raise the humidity levels within a forest. The leaves falling to the ground and decomposed increases the nutrient levels in the soil, improves water retention and helps insulate the soil against freezing temperatures. The tree canopy helps moderate the soil temperature and decreases the evaporation of water from the soil. The root systems of plants slows soil erosion from wind and water.

Question:Give two examples explaining how biotic components of an environment influence the abiotic components of an environment.

Answers:Pollution, greenhouse effect- eg. when humans (biotic) burn fossil fuels, CO2 is released in the air and is trapped by greenhouse gases causing an increase in temperature (abiotic)

Question:

Answers:Ecosystems are made up of both non-living (abiotic) and living (biotic) factors. Abiotic factors are the elements of an ecosystem that are non-living. Nevertheless, they still have an affect on the ecosystem. Water, temperature, relief (the height of the ground above sea level), soil type, fire, and nutrients (a substance that provides energy and sustenance to living organisms) are all examples of abiotic factors. Putting this all together, the availability of abiotic factors (e.g. matter and energy resources) can limit the number of organisms in a population, and the physical conditions of the environment can limit the distribution of a species.