歩行活動量に対する人為選抜がタイリクヒメハナカメムシの生活史特性に及ぼす影響

抄録

Orius strigicollis （Poppius） often establishes poorly after release, especially during periods of low prey density. Artificial selection for reduced walking activity extends the patch residence time and improves the early establishment of O. strigicollis. However, long-term artificial selection can affect the life history characteristics through inbreeding and/or correlated response to artificial selection. The effects of artificial selection for reduced walking activity on the hatching rate, proportion of emergence, developmental period, and early fecundity were assessed by comparing selected and wild-type lines of O. strigicollis under laboratory conditions. No differences were found in these characteristics. In contrast, with no diet provided, O. strigicollis adults from the selected lines survived significantly longer than wild-type adults. These results suggest that artificial selection for reduced walking activity does not influence the survival, developmental, or reproductive characteristics deleteriously and improves resistance to starvation in O. strigicollis.