Response of a specialist leaf miner insect to the environmental stress of its host plant

Santiago‐Salazar, César Miguel; Barrera, Juan F.; Rojas, Julio C.; Huerta‐Palacios, Graciela; Prado, Esteban

doi:10.1007/s11829-022-09900-5

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References 78 publications

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“…Moderate drought favours the leaf miner, as shown in the percent larvae hatched from eggs, pupal and adult weight. Santiago-Salazar et al, 2022 reported that moderate drought enhances the performance of coffee leaf miner, Leucoptera coffeella, and that could be due to the quality of the nutrients available to the leaf miner. In contrast to other studies, leaf miners performed similarly in both control and drought plants, but larval and pupal survival is higher in drought plants (Acidri et al, 2020;Hahn & Maron, 2018;Lenhart et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

The effect of global change on multitrophic interactions of sugar beet

Rahman

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Climate change leads to more frequent droughts that may alter multitrophic networks in agroecosystems by changing bottom-up and top-down effects on herbivorous insects. Yet, how bottom-up effects of drought alter tritrophic interactions remains poorly understood. This study investigated two intensities of drought stress in the tritrophic system consisting of sugar beet (Beta vulgaris), an aphid (Aphis fabae), and its parasitoid (Aphidius colemani). We thoroughly investigated each trophic level, examining the performance of plants, insects, and parasitoids, as well as the attraction of parasitoids to herbivore-induced plant volatiles (HIPVs). Drought stress negatively affected plant growth but benefited A. fabae, leading to faster development and a higher reproduction rate. Droughtstressed plants also emitted less plant volatiles, which resulted in reduced attraction of A. colemani to aphid-infested plants. Drought indirectly affected parasitoid performance, as evidenced by lower emergence rates and production of fewer females, although mummification rates were higher on drought-stressed plants. Reduced parasitoid attraction and performance on drought-stressed plants may exert lower top-down pressure on aphid populations. Combined with increased aphid performance, this may facilitate aphid outbreaks, which could further weaken drought-stressed plants. Our findings highlight the need to study multiple trophic levels and emphasize the importance of incorporating HIPVs and parasitoid attraction when assessing combined abiotic and biotic stresses in crops.

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Section: Discussionmentioning

confidence: 99%

The effect of global change on multitrophic interactions of sugar beet

Rahman

View full text Add to dashboard Cite

show abstract

Response of a specialist leaf miner insect to the environmental stress of its host plant

Cited by 1 publication

References 78 publications

The effect of global change on multitrophic interactions of sugar beet

The effect of global change on multitrophic interactions of sugar beet

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