Colder is better: The differential effects of thermal acclimation on life history parameters in a parasitoid fly.

摘要: In this article, we assessed the effect of rearing temperature on life history traits poorly known fly Phasmovora phasmophagae (Diptera: Tachinidae), a parasitoid Agathemera crassa (Phasmatodea: Agathemeridae) in order to: i) test ambient and ii) assess potential trade-off between reproduction survival. Parasitoids were obtained from population hosts located Andes range central Chile. Upon emergence host parasitoids randomly allocated to three thermal treatments (15°C, 22.5°C 30°C) several measured. We recorded higher survival at 15°C lower 30°C.We found differences for both body mass head width among treatments. females, was than 30°C. An breeding sex observed only developmental time. addition, males reared different temperatures during pupal stage held as adults 22.5°C, exhibited no longevity A significant ovaries lipid females. These patterns suggest Overall, data seem support "colder is better" hypothesis, because Andean P. inhabiting experimentally colder environments have performance all environments.