Premium
Adaptative significance of a temperature induced diapause in a cosmopolitan parasitoid of Drosophila
Author(s) -
CARTON Y.,
CLARET J.
Publication year - 1982
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.1365-2311.1982.tb00663.x
Subject(s) - diapause , biology , parasitoid , pupa , gypsy moth , population , hymenoptera , larva , zoology , ecology , demography , sociology
. 1. We have previously demonstrated pre‐pupal diapause in a tropical population of Leptopilima boulardi Barbotin, Carton and Kelner‐Pillault (Cynipidae, Hymenoptera), a larval parasitoid of Drosophila melanogaster Meigen. Prepupal diapause was induced by low temperature (17.5°C) but absent at 25°C; it was independent of photoperiod. 2. Four populations which originated from different latitudes (4°S to 44°N) exhibit the same response to temperature without any major genetic geographical variation. 3. In temperate areas, this diapause may permit a phenological and temporal coincidence between the parasitoid and its host whose larval growth is only possible for temperatures above 13°C. 4. The significance of the persistence of this diapause in tropical areas is discussed.