Advanced phenology of intraguild predators shifts herbivore host plant preference and performance
Advanced phenology of intraguild predators shifts herbivore host plant preference and performance
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行会内捕食者的高级物候改变了食草动物宿主植物的偏好和性能
DOI:
10.1111/een.12878
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发表时间:
2020
影响因子:
2.2
通讯作者:
Mooney, Emily
中科院分区:
文献类型:
--
作者:
Mullins, Maria;Den Uyl, James;Cruz, Emily;Trail, Samantha;Davidson, Benjamin;Campbell, Diane;Mooney, Emily
1. The abundance of insect herbivores is mediated by interactions with higher and lower trophic levels. This research asks (i) how phenological change across trophic levels affects host plant quality and selection for aphids, and (ii) what higher trophic level mechanisms drive aphid abundance.2.Ligusticum porteriis a perennial host for the sap‐feeding aphidAphis asclepiadisand intraguild mirid predators (chieflyLygus hesperus) in Colorado. We used long‐term observational data to discover that aphids and mirids respond differently to phenological cues. These unique responses can impact aphid abundance through changes to host plant selection and quality.3. We used behavioural choice assays to assess how advanced mirid phenology influences aphid host plant selection. More alates landed and reproduced on mirid‐free control plants relative to host plants with prior mirid feeding. However, this preference did not correlate with aphid performance when we compared aphid relative growth rates between treatments. This suggests that advanced mirid phenology would impact aphid populations more through host plant choice, rather than reductions in host quality. The addition of mirids to experimental aphid colonies also demonstrated reduced aphid colony growth via predation.4. We measured plant cues involved in host selection and found differences in volatile composition between plants with prior mirid feeding compared to control plants, providing the potential for aphids to detect enemy‐free space using volatile cues.
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影响因子:
4.2
作者:
Bischoff, Mascha;Juergens, Andreas;Campbell, Diane R.
通讯作者:
Campbell, Diane R.
影响因子:
1.6
作者:
Y. Samocha;M. Sternberg
通讯作者:
M. Sternberg
影响因子:
1.4
作者:
J. Addicott
通讯作者:
J. Addicott
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
S. Harju
通讯作者:
S. Harju
影响因子:
2.3
作者:
D. Lagos;Colin Favret;R. Giordano;D. Voegtlin
通讯作者:
D. Voegtlin