Should I Eat or Should I Go? Acridid Grasshoppers and Their Novel Host Plants: Potential for Biotic Resistance

被引:3
作者
Avanesyan, Alina [1 ]
机构
[1] Univ Maryland, Dept Entomol, 4291 Fieldhouse Dr,3128 Plant Sci, College Pk, MD 20742 USA
来源
PLANTS-BASEL | 2018年 / 7卷 / 04期
关键词
Acrididae; herbivory; introduced plants; invasive species; novel associations; plant-insect interactions; INCREASED COMPETITIVE ABILITY; TREE SAPIUM-SEBIFERUM; INVASIVE PLANTS; FEEDING PREFERENCE; NATIVE HERBIVORES; PRAIRIE GRASSES; EXOTIC PLANTS; SMOOTH BROME; INSECT; ORTHOPTERA;
D O I
10.3390/plants7040083
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Novel, non-coevolved associations between introduced plants and native insect herbivores may lead to changes in trophic interactions in native communities, as well as to substantial economic problems. Although some studies in invasion ecology demonstrated that native herbivores can preferentially feed on introduced plants and therefore contribute to the biotic resistance of native communities to plant invasions, the role of acridid grasshoppers as native generalist insect herbivores is largely overlooked. This systematic review aimed to identify patterns of grasshopper feeding preferences for native versus introduced plants and, consequently, a potential of grasshoppers to provide biotic resistance of native communities. The analysis of 63 records of feeding preference trials for 28 North-American grasshopper species (retrieved from 2146 studies published during 1967-2017) has demonstrated a preference of grasshoppers for introduced host plants, and identified 12 preferred introduced plants with high or middle invasive ranks. A significant effect of the life stage (p < 0.001), but not the experimental environment, plant material, and measurements, on grasshopper preferences for introduced plants was also detected. Overall, results suggest a potential of acridid grasshoppers to contribute to the biotic resistance of native communities. The review also provides methodological recommendations for future experimental studies on grasshopper-host plant interactions.
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页数:18
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