Influence of constant and changing temperature and humidity on the development and survival of the eggs and pupae of Drosophila melanogaster (Meigen)
1995
Al-Saffar, Z.Y. | Grainger, J.N.R. | Aldrich, J.
The mean durations of development in the eggs and pupae of Drosophila melanogaster (Meigen) and their survival, were measured at combinations of six constant temperatures and up to eleven levels of vapour pressure deficit. Temperature was found to account for from 58 to 98% of the variation in the mean duration of the development, whereas vapour pressure deficit (or relative humidity which is the opposite scale) accounted for from 43 to 91% of the variance in the survival of the two stages. Vapour pressure deficit was found to be highly positively correlated with the mortalities of both stages, thus relative humidity was highly negatively correlated with both stages. No significant extra effect on the development of the egg and pupal stages was evident when they were subjected to two different sets of temperature/humidity conditions for 12 h periods each. The present results can be used as a basis for modelling the development of these stages under changing conditions of both temperature and humidity.
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