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Cooperation most commonly refers to increases in fitness through within-species (intraspecific) interactions, although it has been used (especially in the past) to refer to mutualistic interactions, and it is sometimes used to refer to mutualistic interactions that are not obligate. [1]
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Intestinal flagellated protozoans and termites exhibit obligative mutualism, a strict interdependency, in which the protozoans digest the wood ingested by the termites; neither partner can survive under natural conditions without the other.
- The Editors of Encyclopaedia Britannica
- Obligate Mutualism. In obligate mutualism the relationship between two species, in which both are completely dependent on each other. Most of the symbioses and some non-symbiotic are the best examples of obligate mutualism.
- Facultative Mutualism. In facultative mutualism, the partners may coexist without a depending on each other. They, however, form a diffuse relationship involving a varying mixture of species.
- Trophic Mutualism. In trophic mutualism, the partners are specialized in complementary ways to obtain energy and nutrients from each other. For example The cows and the bacteria.
- Defensive Mutualism. In defensive mutualism, one partner receives food and shelter and in return, it helps the partner by defending against the herbivores or predators or parasites.
May 22, 2022 · The two main types of mutualism are obligate mutualism and facultative mutualism. In obligate mutualism each species depends on the other for its very survival. A lichen is a good example of an obligate mutualistic relationship.
Dec 17, 2016 · If the mutualism is vital for the growth, survival or reproduction of an organism, it is obligate; this is the case in many symbioses. If the mutualism benefits an organism, but the organism is not so dependent on the mutualism that it cannot survive without it, this is called a facultative mutualism.
May 18, 2023 · In obligate mutualism, the partners depend entirely on each other for survival. In contrast, organisms that derive benefit from the relationship but can survive without the other are called facultative mutualism.
Aug 3, 2023 · Obligate mutualism is the interaction between different species where the interaction is essential for their survival, and thus the species are obligated or forced to depend on each other. Most of the symbiotic, as well as non-symbiotic interactions, occur through obligate mutualism.
