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DOI | 10.4039/tce.2019.1 |
Diapause expression in a Quebec, Canada population of the parasitoid Aphidius ervi (Hymenoptera: Braconidae) | |
Tougeron, Kevin1,2; van Baaren, Joan2; Le Lann, Cecile2; Brodeur, Jacques1 | |
发表日期 | 2019 |
ISSN | 0008-347X |
EISSN | 1918-3240 |
卷号 | 151期号:3页码:345-349 |
英文摘要 | Aphidius ervi Haliday (Hymenoptera: Braconidae) is a major natural enemy of several agricultural pests in North America. Yet little is known about its overwintering strategy, especially concerning the plastic response to photoperiod and temperature that induce diapause. Information on parasitoid overwintering patterns is of great importance if we aim to predict their phenology and better inform pest outbreak control. Moreover, there is increasing evidence of plastic and genetic changes in overwintering strategies in insect from temperate areas following climate change. We set up a laboratory approach to better understand the factors acting on diapause induction in A. ervi. We studied the diapause incidence in a population from Quebec, Canada, using the combination of two temperatures (14 degrees C and 20 degrees C) and three photoperiod treatments (10:14, 12:12, 14:10 [light:dark] hours). We found an effect of both factors on diapause incidence; A. ervi expressed close to 95% of diapause at the most fall-like conditions (14 degrees C, 10:14 [light:dark] hours) and almost no diapause (3.5%) at the most summer-like conditions tested (20 degrees C, 14:10 [light:dark] hours). This parasitoid species does have the potential to enter diapause in Quebec before lethal frosts, despite a recent introduction from France (1960s), where mild winter occurs compared with Quebec. |
WOS研究方向 | Entomology |
来源期刊 | CANADIAN ENTOMOLOGIST
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文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/98514 |
作者单位 | 1.Univ Montreal, Inst Rech Biol Vegetale, Dept Sci Biol, 4101 Sherbrooke Est, Montreal, PQ H1X 2B2, Canada; 2.Univ Rennes, CNRS, Ecobio Ecosyst Biodiversite Evolut, Unite Mixte Rech 6553, 263 Ave Gen Leclerc, F-35000 Rennes, France |
推荐引用方式 GB/T 7714 | Tougeron, Kevin,van Baaren, Joan,Le Lann, Cecile,et al. Diapause expression in a Quebec, Canada population of the parasitoid Aphidius ervi (Hymenoptera: Braconidae)[J],2019,151(3):345-349. |
APA | Tougeron, Kevin,van Baaren, Joan,Le Lann, Cecile,&Brodeur, Jacques.(2019).Diapause expression in a Quebec, Canada population of the parasitoid Aphidius ervi (Hymenoptera: Braconidae).CANADIAN ENTOMOLOGIST,151(3),345-349. |
MLA | Tougeron, Kevin,et al."Diapause expression in a Quebec, Canada population of the parasitoid Aphidius ervi (Hymenoptera: Braconidae)".CANADIAN ENTOMOLOGIST 151.3(2019):345-349. |
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