Dissertation Research: The Ecological Consequences of Parasitoid Attraction to Damage-Induced Volatile Compounds

9902199舒尔茨和雷德曼宾夕法尼亚州立大学的研究表明，大量证据表明，肉食性节肢动物，主要是寄生黄蜂，通过定位于被捕食植物释放的损害诱导的挥发性化合物来定位食草动物。这些化合物似乎是植物对食草动物唾液的反应而产生的。释放的化合物可能是非常具体的。以前对这一现象的调查仅限于实验室条件，为推测其与生态的相关性留下了空间。该项目将通过以下方式直接考虑生态问题：1)捕获和分析田间特定危害的挥发性物质，2)测量草食动物在挥发性和非挥发性植物上的寄生率，以及3)评估不同水平的植物在不同水平的挥发性物质产生和寄生虫吸引下产生的成本和收益。

9902199 Schultz and RedmanPennsylvania State University There has been an accumulation of evidence that has demonstrated that carnivorous arthropods, primarily parasitic wasps, locate herbivores by orienting to damage-induced volatile compounds that are released from plants that are preyed upon. These compounds appear to be generated by plants de novo in response to herbivore saliva. The compounds released may be quite specific. Previous investigations of this phenomenon have been restricted to laboratory conditions leaving room for speculation on its ecological relevance. This project will consider ecological issue directly by 1) trapping and analyzing damage-specific volatile materials in the field, 2) measuring the incidence of parasitism of herbivores on volatile-emitting and non-emitting plants and 3) evaluating the costs and benefits that plants incur at various levels of volatile production and parasitoid attraction, under various levels of herbivory.