Journal
BASIC AND APPLIED ECOLOGY
Volume 53, Issue -, Pages 134-142Publisher
ELSEVIER GMBH
DOI: 10.1016/j.baae.2021.03.007
Keywords
BEF-China; Biodiversity and Ecosystem Functioning; Cavity-nesting Hymenoptera; Functional Insect Groups; Abundance; Species richness
Categories
Funding
- Strategic Priority Research Program of the Chinese Academy of Science [XDB310304]
- National Science Fund for Distinguished Young Scholars [31625024]
- UCAS Joint Ph.D. program [UCAS [201726]]
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This study conducted a tree diversity experiment in subtropical China, finding that the abundance and species richness of predatory wasps and parasitoids increased with tree species richness, while bee abundance and species richness were unrelated. The results highlight the importance of subtropical forests in maintaining key functional insect groups.
From regional to global scales, anthropogenic environmental change is causing biodiversity loss and reducing ecosystem functionality. Previous studies have investigated the relationship between plant diversity and functional insect communities in temperate and also in tropical grasslands and forests. However, few studies have explored these dynamics in subtropical forests. Here, cavity-nesting Hymenoptera and associated parasitoids were collected across a controlled tree diversity experiment in subtropical China to test how predatory wasps, bees and parasitoids respond to tree species richness. Abundance and species richness of predatory wasps and parasitoids were positively correlated with tree species richness, while bee abundance and bee species richness were unrelated to tree species richness. Our results indicate that tree species richness increases the abundance and species richness of important communities such as predators and parasitoids. Moreover, the results highlight the importance of subtropical forests in maintaining abundance and species richness of key functional insect groups (c) 2021 Gesellschaft fur &Okologie. Published by Elsevier GmbH. All rights reserved.
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