Tansy (Tanacetum vulgare) exhibits distinct chemotypes, influencing herbivore interactions through mono- and sesquiterpenoid blends. This thesis investigates how chemotypes shape aphid preferences, performance, and multi-herbivore interactions via greenhouse and field studies. Results show that aphid attraction depends on overall volatile blends, while soil type influences aphid abundance. Chemotypes did not mediate root herbivore effects, suggesting localized defense. Findings highlight the ecological importance of intraspecific chemodiversity.
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Tansy (Tanacetum vulgare) exhibits distinct chemotypes, influencing herbivore interactions through mono- and sesquiterpenoid blends. This thesis investigates how chemotypes shape aphid preferences, performance, and multi-herbivore interactions via greenhouse and field studies. Results show that aphid attraction depends on overall volatile blends, while soil type influences aphid abundance. Chemotypes did not mediate root herbivore effects, suggesting localized defense. Findings highlight the eco...
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