What are allochthonous inputs?
Stream ecosystems receive energy from two sources: allochthonous inputs, which consist of terrestrially derived carbon (C) that is produced within the catchment and imported into the stream channel (e.g., Kaushik & Hynes, 1971), and autochthonous production, which includes C fixed within the stream channel by algae and …
What is allochthonous in ecology?
Allochthonous refers to material that has been imported into an ecosystem. While an ecosystem involves both organic (plants, bacteria, animals) and inorganic things (rocks, soil, water), the allochthonous material that enters an ecosystem refers to organic matter and its nutrients, such as nitrogen and phosphorous.
What is autochthonous input?
In aquatic communities, the autochthonous input is provided by the photosynthesis of large plants and attached algae in shallow waters (littoral zone) and by microscopic phytoplankton.
What is the meaning of Allochthonous?
Definition of allochthonous 1a : of or relating to the rocks of an allochthon. b of coal : formed elsewhere than in situ and hence not autochthonous. c of limestone : composed largely of organic debris moved far from the place where the base organisms lived.
What are allochthonous sources of organic matter?
Allochthonous dissolved organic matter is a source of organic carbon, nitrogen, phosphorus, and sulfur to aquatic systems that is derived from the surrounding terrestrial ecosystem.
What is allochthonous organic matter?
What is allochthonous material that enters an ecosystem?
While an ecosystem involves both organic (plants, bacteria, animals) and inorganic things (rocks, soil, water), the allochthonous material that enters an ecosystem refers to organic matter and its nutrients, such as nitrogen and phosphorous. Allochthonous material commonly resides in an aquatic ecosystem, such as a stream or river.
What is the autochthonous input in an aquatic community?
In aquatic communities, the autochthonous input is provided by the photosynthesis of large plants and attached algae in shallow waters (littoral zone) and by microscopic phytoplankton
What does allochthonous mean?
What does allochthonous mean? Allochthonous refers to material that has been imported into an ecosystem. While an ecosystem involves both organic (plants, bacteria, animals) and inorganic things (rocks, soil, water), the allochthonous material that enters an ecosystem refers to organic matter and its nutrients, such as nitrogen and phosphorous.
What is an example of allochthonous organic matter?
Exceptions exist, however, particularly where colonial animals deposit feces derived from food consumed at a distance from the colony (e.g. bat colonies in caves, seabirds on coastland) – guano is an example of allochthonous organic matter (dead organic material formed outside the ecosystem).