Body size reaction norms in Drosophila melanogaster: temporal stability and genetic architecture in a natural population Dev Karan, Jean-Philippe Morin, Emmanuelle Gravot, Brigitte Moreteau and Jean R. DavidGenet. Sel. Evol., 31 5-6 (1999) 491-508DOI: https://doi.org/10.1051/gse:19990505