open access

https://hdl.handle.net/2115/70900

Ozone alters the feeding behavior of the leaf beetle Agelastica coerulea (Coleoptera: Chrysomelidae) into leaves of Japanese white birch (Betula platyphylla var. japonica)

英語

Tropospheric O₃

2017-07

Springer

Environmental science and pollution research

24(21)

17577-17583

High mixing ratios of ground-level O-3 threaten trophic interactions. In the present study, we conducted laboratory assays, where insect larvae and adults were not directly exposed to O-3, to test the feeding behavior and attraction of the coleopteran leaf beetle Agelastica coerulea to early and late leaves of Japanese white birch (Betula platyphylla var. japonica) treated with ambient or elevated O-3 levels. We found that overwintered adults were not deterred from grazing elevated O-3-treated leaves, but rather preferred them than ambient O-3-treated ones. We also found that the feeding behavior of 2nd instar larvae fed on early or late leaves was not influenced by the O-3 treatment of the leaves when larvae could choose leaves. These observations of the adults and larvae feeding preferences contradict prior observations in the field conditions where the insects avoided leaves in O-3-enriched atmosphere. Since adults preferred elevated O-3-exposed leaves in the present laboratory assays, it is worthy of further investigations whether adults change their grazing preference so as to ensure the leaf palatability as a feeding source for their larvae. Hence, new direction towards detailed ovipositional behavior surveys under field conditions is encouraged.

学術雑誌論文

Accepted Manuscript

The final publication is available at Springer via http://dx.doi.org/10.1007/s11356-017-9369-7

0944-1344

1614-7499

AA11079143