Effects of sap-feeding insect herbivores on growth and reproduction of woody plants: a meta-analysis of experimental studies

Zvereva, Elena L.; Lanta, Vojtěch; Kozlov, Mikhail V.

doi:10.1007/s00442-010-1633-1

Cited by 150 publications

(155 citation statements)

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“…1). This is congruent with the idea that sap-feeding insects generally tend to 175 decrease photosynthesis (reviewed in Zvereva et al 2010) and suggests that this occurs even 176 when a sap-feeding insect is present but inactive. 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 Figure 1…”

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confidence: 79%

“…In fact, in some systems sap-feeding insects cause greater damage to woody plants 36 than do defoliators (Zvereva et al 2010). 37…”

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confidence: 99%

“…Relatively few studies have investigated the effects of sap-feeding herbivores on woody 38 species (reviewed in Zvereva et al 2010). Conifers may be especially susceptible to sap-feeders 39 because they allocate more storage compounds to foliage as opposed to deciduous trees that store 40 resources in their roots, stems, and other tissues inaccessible to sap feeders ; 41 Hester et al 2004; Krause & Raffa 1996b).…”

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Tree responses to an invasive sap-feeding insect

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14Although sap-feeding insects are known to negatively affect plant growth and physiology, less is 15 known about sap-feeding insects on woody plants. Adelges tsugae (Annand Hemiptera: 16 Adelgidae), the hemlock woolly adelgid, is an invasive sap-feeding insect in eastern North 17America that feeds on and kills Tsuga canadensis (L. Carrière), eastern hemlock. In the summer, 18 newly hatched nymphs crawl to young unattacked tissue, settle and immediately enter diapause 19 (aestivation) while attached to hemlock. We assessed the effect of A. tsugae infestation on T.

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confidence: 79%

“…In fact, in some systems sap-feeding insects cause greater damage to woody plants 36 than do defoliators (Zvereva et al 2010). 37…”

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Tree responses to an invasive sap-feeding insect

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“…of the morphological and chemical defense mechanisms that deter leaf chewers (Howe and 436 Jander 2008; Zvereva et al 2010) and that may be related to the phylogenetic structure and 437 diversity of plant communities (Baraloto et al 2012). This may weaken potential relationships 438 with plant phylogenetic diversity for sap-sucking herbivores and explain the patterns we 439 found in our study, especially if a dominance of leaf chewers shifts plant responses to a 440 stronger defense against these dominant herbivores (see also Carmona and Fornoni 2013).…”

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Woody plant phylogenetic diversity mediates bottom–up control of arthropod biomass in species-rich forests

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Global change is predicted to cause non-random species loss in plant communities, with consequences for ecosystem functioning. However, beyond the simple effects of plant species richness, little is known about how plant diversity and its loss influence higher trophic levels, which are crucial to the functioning of many species-rich ecosystems. We analyzed to what extent woody plant phylogenetic diversity and species richness contribute to explaining the biomass and abundance of herbivorous and predatory arthropods in a species-rich forest in subtropical China. The biomass and abundance of leaf-chewing herbivores, and the biomass dispersion of herbivores within plots, increased with woody plant phylogenetic diversity. Woody plant species richness had much weaker effects on arthropods, but interacted with plant phylogenetic diversity to negatively affect the ratio of predator to herbivore biomass. Overall, our results point to a strong bottom-up control of functionally important herbivores mediated particularly by plant phylogenetic diversity, but do not support the general expectation that top-down predator effects increase with plant diversity. The observed effects appear to be driven primarily by increasing resource diversity rather than diversity-dependent primary productivity, as the latter did not affect arthropods. The strong effects of plant phylogenetic diversity and the overall weaker effects of plant species richness show that the diversity-dependence of ecosystem processes and interactions across trophic levels can depend fundamentally on non-random species associations. This has important implications for the regulation of ecosystem functions via trophic interaction pathways and for the way species loss may impact these pathways in species-rich forests. Global change is predicted to cause non-random species loss in plant communities, with 23 consequences for ecosystem functioning. However, beyond the simple effects of plant species 24 richness, little is known about how plant diversity and its loss influence higher trophic levels, 25 which are crucial to the functioning of many species-rich ecosystems. We analyzed to what 26 extent woody plant phylogenetic diversity and species richness contribute to explaining the 27 biomass and abundance of herbivorous and predatory arthropods in a species-rich forest in 28 subtropical China. The biomass and abundance of leaf-chewing herbivores, and the biomass 29 dispersion of herbivores within plots, increased with woody plant phylogenetic diversity. 30Woody plant species richness had much weaker effects on arthropods, but interacted with 31 plant phylogenetic diversity to negatively affect the ratio of predator to herbivore biomass. 32Overall, our results point to a strong bottom-up control of functionally important herbivores 33 mediated particularly by plant phylogenetic diversity, but do not support the general 34 expectation that top-down predator effects increase with plant diversity. The observed effects 35 appear to be driven primarily by increa...

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“…This gap is notable in light of 67 work documenting that sap-feeder impacts on woody plant fitness equal or exceed those of 68 folivores (Zvereva et al, 2010). Aphid infestations, for instance, indirectly reduce root growth inCameron, 1997) and reduce root tissue density of Douglas fir by inducing the translocation of 71 additional carbohydrates from roots to shoots (Smith and Schowalter, 2001).…”

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confidence: 99%