Herbivory by sucking mirid bugs can reduce nectar production in Asphodelus aestivus Brot.
Herbivory by sucking mirid bugs can reduce nectar production in Asphodelus aestivus Brot.
复制标题
通过吸食蝽来食草会减少 Asphodelus aestivus Brot 的花蜜产量。
DOI：
10.1007/s11829-010-9091-6
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发表时间：
2010
影响因子：
1.6
通讯作者：
M. Sternberg
中科院分区：
文献类型：
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作者：
Y. Samocha;M. Sternberg
本实验研究了盲蝽的草食动物，Capsodes infuscatus对地中海地下植物，Asphodelus aestivus的花蜜产量的影响。增加成虫密度，对成虫的生长发育有一定影响。infuscatus bugs在A.结果表明，小麦对花蜜量和花蜜浓度的影响是显著的。结果表明，随着温度的升高，花量和花蜜产量均显著下降。infuscatus密度增加。协方差分析（ANCOVA）表明，花蜜生产不受环境变量（空气温度，空气相对湿度和白天），被视为协变量的各种错误植食强度。糖浓度没有显着变化之间的治疗，表明非生物条件不负责不同的花蜜量。根据A. aestivus依赖传粉者的访问产生种子，我们得出结论，C。infuscatus可以通过减少花中花蜜的量来影响授粉成功。据我们所知，目前的研究首次表明，昆虫食草动物不一定要从花中去除部分，以减少花蜜分泌。
This experimental study focused on the effects of a mirid bug herbivore, Capsodes infuscatus on the flower nectar yield of a Mediterranean geophyte, Asphodelus aestivus. The effects of increasing densities of adult C. infuscatus bugs on A. aestivus, on the nectar volume and concentration were examined. Significant decreases were found in the number of flowers and nectar production as C. infuscatus densities increased. Analysis of covariance (ANCOVA) showed that nectar production was not affected by environmental variables (air temperature, relative air humidity and day-time) that were treated as covariates for the various bug herbivory intensities. Sugar concentration did not vary significantly among treatments, indicating that abiotic conditions were not responsible for differing nectar amounts. In light of A. aestivus’s dependence on pollinator visits to produce seeds, we conclude that C. infuscatus could impair pollination success by reducing the amount of nectar in flowers. To the best of our knowledge, the present study is the first to show that insect herbivores do not necessarily have to remove segments from the flower in order to decrease nectar secretion.