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  • Title: Cannibalistic behavior in Armigeres subalbatus (Diptera: Culicidae).
    Author: Rajavel AR.
    Journal: Southeast Asian J Trop Med Public Health; 1992 Sep; 23(3):453-7. PubMed ID: 1362627.
    Abstract:
    Phenomenon of natural cannibalism was observed to be exhibited by late (III and IV) instar larvae of Armigeres subalbatus. Cannibalistic behavior in this species was studied in response to food and density. Cannibalism among late instars was found to occur even in the presence of an adequate quantity of food. The rate of cannibalism was enhanced when food was restricted to only the early stages. Even in the total absence of food early instars did not show any cannibalistic behavior. Density had no influence on the rate of cannibalism. Under forced cannibalism and predation fourth instar larvae could not successfully pupate but the duration was prolonged. Cannibalism was thus facultative without any value for the survival of larvae. It may help in maintaining a balance in immature density in their natural habitats.
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