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Biotics describe living or once living components of a community; for example organisms, such as animals and plants. Biotic may refer to: . Life, the condition of living organisms
An ecosystem (or ecological system) is a system formed by organisms in interaction with their environment. [2]: 458 The biotic and abiotic components are linked together through nutrient cycles and energy flows.
Biotic stress is stress that occurs as a result of damage done to an organism by other living organisms, such as bacteria, viruses, fungi, parasites, beneficial and harmful insects, weeds, and cultivated or native plants. [1]
This stream operating together with its environment can be thought of as forming a river ecosystem. River ecosystems are flowing waters that drain the landscape, and include the biotic (living) interactions amongst plants, animals and micro-organisms, as well as abiotic (nonliving) physical and chemical interactions of its many parts.
The capybara [a] or greater capybara (Hydrochoerus hydrochaeris) is the largest living rodent, [2] native to South America.It is a member of the genus Hydrochoerus.The only other extant member is the lesser capybara (Hydrochoerus isthmius).
Smelt dipping in the Keweenaw Peninsula in Michigan. In the Canadian provinces and U.S. states around the Great Lakes, "smelt dipping" is a common group sport in the early spring and when stream waters reach around 4 °C (39 °F).
In physical geography, tundra (/ ˈ t ʌ n d r ə, ˈ t ʊ n-/) is a type of biome where tree growth is hindered by frigid temperatures and short growing seasons. There are three regions and associated types of tundra: Arctic, [2] Alpine, [2] and Antarctic.
The Gaia hypothesis (/ ˈ ɡ aɪ. ə /), also known as the Gaia theory, Gaia paradigm, or the Gaia principle, proposes that living organisms interact with their inorganic surroundings on Earth to form a synergistic and self-regulating complex system that helps to maintain and perpetuate the conditions for life on the planet.