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Ecol Evol. 2017 Sep 18;7(21):8753-8760. doi: 10.1002/ece3.3411. eCollection 2017 Nov.

Tree diversity drives diversity of arthropod herbivores, but successional stage mediates detritivores.

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Estación Experimental de Zonas ÁridasConsejo Superior de Investigaciones Científicas Almería Spain.
Department of Evolutionary Biology and Environmental Studies University of Zurich Zurich Switzerland.
Institute of Global Health University of Geneva Geneva Switzerland.
German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig Leipzig Germany.
Institute of Ecology Zhejiang Normal University Jinhua Zhejiang Province China.
State Key Laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing China.


The high tree diversity of subtropical forests is linked to the biodiversity of other trophic levels. Disentangling the effects of tree species richness and composition, forest age, and stand structure on higher trophic levels in a forest landscape is important for understanding the factors that promote biodiversity and ecosystem functioning. Using a plot network spanning gradients of tree diversity and secondary succession in subtropical forest, we tested the effects of tree community characteristics (species richness and composition) and forest succession (stand age) on arthropod community characteristics (morphotype diversity, abundance and composition) of four arthropod functional groups. We posit that these gradients differentially affect the arthropod functional groups, which mediates the diversity, composition, and abundance of arthropods in subtropical forests. We found that herbivore richness was positively related to tree species richness. Furthermore, the composition of herbivore communities was associated with tree species composition. In contrast, detritivore richness and composition was associated with stand age instead of tree diversity. Predator and pollinator richness and abundance were not strongly related to either gradient, although positive trends with tree species richness were found for predators. The weaker effect of tree diversity on predators suggests a cascading diversity effect from trees to herbivores to predators. Our results suggest that arthropod diversity in a subtropical forest reflects the net outcome of complex interactions among variables associated with tree diversity and stand age. Despite this complexity, there are clear linkages between the overall richness and composition of tree and arthropod communities, in particular herbivores, demonstrating that these trophic levels directly impact each other.


BEF‐China; biodiversity; canopy layers; community composition; ecosystem functioning; forest succession; plant–herbivore interactions; trophic groups

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