Gregarian behavior

Gregärparasitismus: Scratch worm infestation ( Pomphorhynchus ) in the rectum of a blue fish ( Pomatomus saltatrix )

Gregarian behavior (dt. Several , in community from Latin gregarius - "belonging to the herd") describes in biology the coming together of organisms ( aggregation ), which otherwise live alone, in one place due to attractive factors such as food availability and water. So there are e.g. Gravedigger on carcasses or dung beetles on excrement. Derived from behavior, Gregarism describes the degree of aggregation of an organism species in special areas of its habitat.

Occasionally the term is basically used as living in a group . The counterpart to gregär is solitary .

A special form of Gregarian behavior is Gregarian parasitism , in which several parasites of the same species live in one host . If, as a rule, only one specimen per host can develop, one speaks of solitary parasitism .

supporting documents

1. ↑ ^{a b} Keyword "Gregäres Behavior." In: Herder-Lexikon der Biologie. Spectrum Akademischer Verlag GmbH, Heidelberg 2003. ISBN 3-8274-0354-5
2. ^ Keyword “Gregarism.” In: Herder-Lexikon der Biologie. Spectrum Akademischer Verlag GmbH, Heidelberg 2003. ISBN 3-8274-0354-5
3. ↑ Keyword "Gregärparasitismus." In: Herder-Lexikon der Biologie. Spectrum Akademischer Verlag GmbH, Heidelberg 2003. ISBN 3-8274-0354-5