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- W3091222655 endingPage "240" @default.
- W3091222655 startingPage "229" @default.
- W3091222655 abstract "Abstract Herbivory is one of the major biotic stress factors that affect the establishment of plants. However, the main factors that drive herbivory in seedlings of Amazonian tree species are still not well understood. Here we investigated whether contrasting levels of irradiance influence herbivory according to different herbivory indicators and which leaf traits are most related to interspecific variation in herbivory under contrasting irradiance conditions. We measured the leaf area lost as a result of insect herbivory in five tree species planted in a silvicultural system of secondary forest enrichment according to two indicators, herbivore damage (accumulated since plant germination) and herbivory rate (measured over time), and two irradiance conditions, understorey PPFD 2.6 mol·m −2 ·day −1 ) and gap PPFD 33.1 mol·m −2 ·day −1 . Furthermore, we related the interspecific variation in herbivory to a set of leaf traits: SLA, RWC, sclerophylly, phenolic compound content, tannins, condensed tannins and non‐structural carbohydrates. Herbivore damage was significantly affected by light availability and species, with the highest percentage variation observed in the Meliaceae ( Carapa guianensis and Swietenia macrophylla ). For the herbivory rate, only the interspecific variation was significant, with Bertholletia excelsa having the lowest rates. Chemical characteristics (phenolic compounds and tannins) were most related to herbivory rates, as well as highly influenced by light conditions. Non‐structural carbohydrates (starch and sucrose) were also related to the interspecific variation in herbivory. The phenolic compounds and starch, as affected by light quantity, are species dependent. Thus, the selective pressure on herbivores may be driven by species‐dependent responses to light conditions." @default.
- W3091222655 created "2020-10-08" @default.
- W3091222655 creator A5019044409 @default.
- W3091222655 creator A5033780942 @default.
- W3091222655 creator A5035413774 @default.
- W3091222655 creator A5062319994 @default.
- W3091222655 creator A5065888691 @default.
- W3091222655 creator A5078950263 @default.
- W3091222655 date "2020-12-06" @default.
- W3091222655 modified "2023-09-29" @default.
- W3091222655 title "Herbivory and leaf traits of Amazonian tree species as affected by irradiance" @default.
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