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Abstract Plant microbiomes are known to influence host fitness and ecosystem functioning, but mechanisms regulating their structure are poorly understood.Here, we explored the assembly mechanisms of leaf epiphytic and endophytic bacterial communities using a subtropical forest biodiversity experiment.Both epiphytic and endophytic bacterial diversity increased as host tree diversity increased. However, the increased epiphytic diversity in more diverse forests was driven by greater epiphytic diversity (i.e. greaterα‐diversity) on individual trees, whereas the increased endophytic diversity in more diverse forests was driven by greater dissimilarity in endophytic composition (i.e. greaterβ‐diversity) among trees. Mechanistically, responses of epiphytes to changes in host diversity were consistent with mass effects, whereas responses of endophytes were consistent with species sorting.Synthesis. These results provided novel experimental evidence that biodiversity declines of plant species will lead to biodiversity declines of plant‐associated microbiomes, but the underlying mechanism may differ between habitats on the plant host.
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Catalog of Endophytic Insects Associated with Rosinweeds ( Silphium L., Heliantheae, Asteraceae) in North America
Endophytic insects, including gall insects and leaf miners, are prominent in both natural and agricultural plant communities. We catalog the endophytic insect fauna in North America that are known to associate with rosinweeds (SilphiumL., Heliantheae, Asteraceae). We provide details on host plant species, brief descriptions of insect associations, and known distributions of their association withSilphiumspecies. We report associations with rosinweeds for 41 insect species from 18 families across four insect orders and detail the host plant tissue where these insects occur. The complex community we describe suggests that a further study of rosinweed endophytic insects could be useful to understanding evolution of host‐plant preferences andSilphiumspecies boundaries.
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- PAR ID:
- 10559901
- Editor(s):
- Tomanovic, Zeljko
- Publisher / Repository:
- Wiley Online Library
- Date Published:
- Journal Name:
- Psyche: A Journal of Entomology
- Volume:
- 2024
- Issue:
- 1
- ISSN:
- 0033-2615
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
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Accepted Manuscript1.0
- Journal Article:
- https://doi.org/10.1155/2024/8464635
