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Ecosystem classifications are specific kinds of ecological classifications that consider all four elements of the definition of ecosystems: a biotic component, an abiotic complex, the interactions between and within them, and the physical space they occupy. Biotic factors of the ecosystem are living things; such as plants, animals, and bacteria ...
Again, these changes are important in understanding the effects of invasive species in a new habitat. The ability of a new species to change an environments abiotic and biotic factors can make a previously habitable environment for a species uninhabitable. The extinction of this species can further change the biotic factors of an environment.
Thus, the beaver affects the biotic and abiotic conditions of other species that live in and near the watershed. [17] In a more subtle case, competitors that consume resources at different rates can lead to cycles in resource density that differ between species. [18]
Ecosystem services are ecologically mediated functional processes essential to sustaining healthy human societies. [6] Water provision and filtration, production of biomass in forestry, agriculture, and fisheries, and removal of greenhouse gases such as carbon dioxide (CO 2) from the atmosphere are examples of ecosystem services essential to public health and economic opportunity.
The biotic environment includes genes, cells, organisms, members of the same species (conspecifics) and other species that share a habitat. [172] The distinction between external and internal environments, however, is an abstraction parsing life and environment into units or facts that are inseparable in reality.
Abiotic components include physical conditions and non-living resources that affect living organisms in terms of growth, maintenance, and reproduction. Resources are distinguished as substances or objects in the environment required by one organism and consumed or otherwise made unavailable for use by other organisms.
Biotic: Resources that originate from the biosphere and have life such as flora and fauna, fisheries, livestock, etc. Fossil fuels such as coal and petroleum are also included in this category because they are formed from decayed organic matter. Abiotic: Resources that originate from non-living and inorganic material.
Arctic ecology – Study of the relationships between biotic and abiotic factors in the arctic – Polar ecology – Relationship between plants and animals and a polar environment – Tropical ecology – Study of the relationships between the biotic and abiotic components of the tropics.