Ecological fits, mis-fits and lotteries involving insect herbivores on the invasive plant, Bunias orientalis
Ecological fits, mis-fits and lotteries involving insect herbivores on the invasive plant, Bunias orientalis
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DOI：
10.1007/s10530-010-9696-9
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发表时间：
2010-09-01
影响因子：
2.9
通讯作者：
van der Putten, Wim H.
中科院分区：
文献类型：
--
作者：
Harvey, Jeffrey A.;Biere, Arjen;van der Putten, Wim H.
外来植物将在其他地方进化而来的特征带入了新的范围。这些特征可能使它们对本地食草动物失去吸引力，甚至有毒，反之亦然。在这里，研究了两种专科昆虫（菜粉蝶和菜粉蝶）和两种通才昆虫草食动物（甜菜夜蛾和甘蓝夜蛾）之间的相互作用，研究对象是荷兰的两种本土十字花科植物黑芥子和芥子，以及一种外来的东方布尼亚。布。侧柏原产于东欧和西亚，但现在是中欧许多国家的入侵害虫。菜籽油菜、甘蓝菜和甜菜夜蛾在Bu上的表现非常差。东方线虫，接近 100% 的幼虫无法化蛹，而本地植物的存活率要高得多。在选择实验中，粉蝶更喜欢在本地植物上产卵。另外，芸苔分枝杆菌在本地植物上发育得很差，但在 Bu 上却茁壮成长。东方人。与德国Bu的进一步分析。侧柏种群还表明，除斜纹夜蛾和甘蓝夜蛾外，几种专科和综合性食草动物在该植物上的表现非常差。布。侧柏产生的次生植物化合物（芥子油苷）水平高于黑芥，但不高于南芥，但这些似乎并不是草食动物发育的重要因素。我们的结果表明Bu。对于某些草食动物（例如花粉蝶）来说，侧柏是一个潜在的人口“陷阱”。然而，通过进化“彩票”的影响，芸苔分枝杆菌找到了穿越植物化学“雷区”的出路。
Exotic plants bring with them traits that evolved elsewhere into their new ranges. These traits may make them unattractive or even toxic to native herbivores, or vice versa. Here, interactions between two species of specialist (Pieris rapae and P. brassicae) and two species of generalist (Spodoptera exigua and Mamestra brassicae) insect herbivores were examined on two native crucifer species in the Netherlands, Brassica nigra and Sinapis arvensis, and an exotic, Bunias orientalis. Bu. orientalis originates in eastern Europe and western Asia but is now an invasive pest in many countries in central Europe. P. rapae, P. brassicae and S. exigua performed very poorly on Bu. orientalis, with close to 100% of larvae failing to pupate, whereas survival was much higher on the native plants. In choice experiments, the pierid butterflies preferred to oviposit on the native plants. Alternatively, M. brassicae developed very poorly on the native plants but thrived on Bu. orientalis. Further assays with a German Bu. orientalis population also showed that several specialist and generalist herbivores performed very poorly on this plant, with the exception of Spodoptera littoralis and M. brassicae. Bu. orientalis produced higher levels of secondary plant compounds (glucosinolates) than B. nigra but not S. arvensis but these do not appear to be important factors for herbivore development. Our results suggest that Bu. orientalis is a potential demographic 'trap' for some herbivores, such as pierid butterflies. However, through the effects of an evolutionary 'lottery', M. brassicae has found its way through the plant's chemical 'minefield'.