amensalism


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amensalism

 [a-men´sal-izm]
interaction between coexisting populations of different species, one of which is adversely affected and the other unaffected.

amensalism

(ā-mĕn′sə-lĭz′əm)
n.
An association between two organisms of different species in which one is harmed or inhibited while the other is unaffected.

amensalism

A type of symbiotic biological interaction in which ≥ 2 organisms from different species live in close proximity to one another, where one member suffers a negative effect as a result of the relationship, while the other is unaffected by it.
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References in periodicals archive ?
May (1973) describes a model that uses only the signs {-,0, +} to represent the dynamics of populations connected in a food web using interactions such as predation, competition, amensalism, comensalism, and symbiosis.
Our study, instead, represents an example of one-way competition (i.e., amensalism), which probably results from large size difference between competing species.
In fact, the pervasive bioturbation may not only help to give the butter shale its soft, seemingly homogeneous consistency, but also help to explain the unusual faunas of these beds as a result of trophic group amensalism, i.e.