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Mutual interference between predatory anthocorids
Author(s) -
EVANS H. F.
Publication year - 1976
Publication title -
ecological entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.865
H-Index - 81
eISSN - 1365-2311
pISSN - 0307-6946
DOI - 10.1111/j.1365-2311.1976.tb01234.x
Subject(s) - biology , predator , predation , interference (communication) , instar , zoology , natural enemies , ecology , larva , telecommunications , channel (broadcasting) , computer science
Abstract1 The way in which the predator Anthocoris confusus reacts to the presence of other individuals of the same species is described. 2 Mutual interference between adult A.confusus leads to a density‐dependent decrease in egg production, due mainly to an increased tendency to migrate from areas of high predator density. 3 Even when ten first instar predators were present in a 2 cm diameter cage they did not interfere with each other unless the amount of food available was inadequate for survival. 4 Mutual interference between A.confusus adults promotes stability in populations of the predator and will lead to even exploitation of an unevenly distributed food source.