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The effect of temperature on progeny allocation and short interval timing in a parasitoid wasp
Author(s) -
SCHMIDT J. M.,
PAK G. A.
Publication year - 1991
Publication title -
physiological entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 57
eISSN - 1365-3032
pISSN - 0307-6962
DOI - 10.1111/j.1365-3032.1991.tb00572.x
Subject(s) - biology , parasitoid , trichogramma , parasitoid wasp , hymenoptera , host (biology) , interval (graph theory) , transit time , duration (music) , insect , ecology , zoology , mathematics , physics , combinatorics , transport engineering , engineering , acoustics
The parasitoid wasp Trichogramma dendrolimi Matsumura sets the number of progeny allocated to its insect egg hosts according to the duration of its initial transit walk across the host surface. Although cooling the wasp reduces its walking speed, reduced temperature does not affect progeny allocation. By locally heating and cooling the wasps, the initial transit can be thermally uncoupled from the subsequent oviposition. Using this technique we show that the timing of initial transit duration is temperature‐dependent. These findings suggest that short interval timing by Trichogramma differs physiologically from the temperature compensated clocks that have been described for other insects.