High developmental temperature leads to low reproduction despite adult temperature

摘要: Phenotypic plasticity can be an important tool in helping organisms to cope with changing thermal conditions and it may show interdependency between life-stages. For instance, exposure stressful temperatures during development trigger a positive plastic response adults. In this study, we analyse the of laboratory populations Drosophila subobscura, derived from two contrasting latitudes European cline. We measured fecundity characters experimental after five treatments, different combinations developmental adult (14, 18 or 26 degrees). ask whether (1) performance is enhanced (or reduced) by exposing flies higher lower) only; (2) raised at lower outperform those developed ones, supporting colder better" hypothesis; (3) there cumulative effect on both juveniles adults temperatures; (4) any evidence for historical effects performance. Our main findings that led low reproductive regardless temperature, while reduced only occurred when cold were persistent across juvenile stage; did not always other was no (negative) latitudinal showed similar patterns. The negative high temperature performance, highlights stage as critical most vulnerable climate change associated heat waves.