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Aggregated distribution information


Parasites are distributed very unevenly among their hosts, most hosts having no parasites, and a few hosts having many. This skewed distribution makes sampling difficult and requires careful use of statistics.

An aggregated distribution, commonly found among predators and parasites, is a highly uneven (skewed) statistical distribution pattern in which they collect or aggregate in regions, which may be widely separated, where their prey or hosts are at high density. This distribution makes sampling difficult and invalidates commonly-used parametric statistics. A similar pattern is found among predators that search for their prey.[1]

  1. ^ Hassell, M. P.; May, R. M. (June 1974). "Aggregation of Predators and Insect Parasites and its Effect on Stability". Journal of Animal Ecology. 43 (2): 567–594. Bibcode:1974JAnEc..43..567H. doi:10.2307/3384. JSTOR 3384.

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