Charles JG, Allan DJ Development of the willow sawfly, Nematus oligospilus, at different temperatures, and an estimation of voltinism throughout New Zealand. |
Photoperiodic induction of diapause hibernation and voltinism in Piezodorus hybneri. |
We do not know whether there are variations in voltinism along the gradient. |
Voltinism bears on the hypothesis, especially in regard to T2 species, in two respects. |