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Tree diversity, tree growth, and microclimate independently structure Lepidoptera herbivore community stability

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Název: Tree diversity, tree growth, and microclimate independently structure Lepidoptera herbivore community stability
Autoři: Ming‐Qiang Wang, Georg Albert, Douglas Chesters, Helge Bruelheide, Yi Li, Jing‐Ting Chen, Sylvia Haider, Shan Li, Goddert von Oheimb, Tobias Proß, Florian Schnabel, Bo Yang, Qing‐Song Zhou, Keping Ma, Xiaojuan Liu, Chao‐Dong Zhu, Arong Luo, Andreas Schuldt
Zdroj: Wang, M Q, Albert, G, Chesters, D, Bruelheide, H, Li, Y, Chen, J T, Haider, S, Li, S, von Oheimb, G, Proß, T, Schnabel, F, Yang, B, Zhou, Q S, Ma, K, Liu, X, Zhu, C D, Luo, A & Schuldt, A 2025, ' Tree diversity, tree growth, and microclimate independently structure Lepidoptera herbivore community stability ', Ecological Monographs, vol. 95, no. 3, e70026 . https://doi.org/10.1002/ecm.70026
Informace o vydavateli: Wiley, 2025.
Rok vydání: 2025
Témata: name=Biology, biodiversity loss, climate change, spatiotemporal assembly, tree diversity, herbivore community dynamics, name=SDG 13 - Climate Action, name=Ecosystems Research, BEF-China, functional diversity, name=Ecology, Evolution, Behavior and Systematics
Popis: Insect herbivores are integral to the functioning of forest ecosystems. However, increasing herbivore outbreaks highlight the need to understand the factors driving the spatial and temporal stability of herbivore communities. While the longer term consequences of climatic fluctuations are well established in this context, the role of local‐scale interactions between herbivores, their host communities, and local microclimates in influencing herbivore stability remains unclear. In this study, we investigated the relative importance of host tree species richness, functional diversity, trait composition, tree growth dynamics, and climate in driving herbivore spatiotemporal stability and the resulting patterns in abundance and diversity. We focused on Lepidoptera caterpillars as very diverse and functionally highly relevant herbivores in forest ecosystems. Tree species richness promoted mean caterpillar abundance, species richness, and phylogenetic diversity by positively affecting their temporal and spatial stability. These effects were mostly direct but counteracted by largely independent and overall negative effects of tree functional diversity, tree growth stability, and microclimate temperature stability. The strength and direction of these effects varied across seasons, reflecting shifts in environmental conditions and herbivore species turnover. The effects of tree diversity on caterpillar communities were related to compositional changes through distinct pathways by reducing taxonomic beta diversity and thus enhancing species richness stability and by increasing phylogenetic beta diversity which may promote asynchrony among distantly related species. Crucially, our findings suggest that tree diversity buffers herbivore communities against climate fluctuations by enhancing their spatiotemporal stability. In consequence, ongoing biodiversity loss may lead to greater fluctuations in herbivore populations and an increased risk of outbreaks. Our study provides novel insights into the mechanisms underlying bottom‐up regulation of herbivores, emphasizing the critical role of tree diversity in maintaining stable herbivore communities in a changing climate.
Druh dokumentu: Article
Jazyk: English
ISSN: 1557-7015
0012-9615
DOI: 10.1002/ecm.70026
Přístupová URL adresa: http://www.scopus.com/inward/record.url?scp=105013646748&partnerID=8YFLogxK
http://fox.leuphana.de/portal/de/publications/tree-diversity-tree-growth-and-microclimate-independently-structure-lepidoptera-herbivore-community-stability(c50fc810-6460-415d-9031-d2dabd8bc006).html
https://doi.org/10.1002/ecm.70026
Rights: Wiley Online Library User Agreement
Přístupové číslo: edsair.doi.dedup.....d75741e295183450fb7b9aa36e79bfb9
Databáze: OpenAIRE
Popis
Abstrakt:Insect herbivores are integral to the functioning of forest ecosystems. However, increasing herbivore outbreaks highlight the need to understand the factors driving the spatial and temporal stability of herbivore communities. While the longer term consequences of climatic fluctuations are well established in this context, the role of local‐scale interactions between herbivores, their host communities, and local microclimates in influencing herbivore stability remains unclear. In this study, we investigated the relative importance of host tree species richness, functional diversity, trait composition, tree growth dynamics, and climate in driving herbivore spatiotemporal stability and the resulting patterns in abundance and diversity. We focused on Lepidoptera caterpillars as very diverse and functionally highly relevant herbivores in forest ecosystems. Tree species richness promoted mean caterpillar abundance, species richness, and phylogenetic diversity by positively affecting their temporal and spatial stability. These effects were mostly direct but counteracted by largely independent and overall negative effects of tree functional diversity, tree growth stability, and microclimate temperature stability. The strength and direction of these effects varied across seasons, reflecting shifts in environmental conditions and herbivore species turnover. The effects of tree diversity on caterpillar communities were related to compositional changes through distinct pathways by reducing taxonomic beta diversity and thus enhancing species richness stability and by increasing phylogenetic beta diversity which may promote asynchrony among distantly related species. Crucially, our findings suggest that tree diversity buffers herbivore communities against climate fluctuations by enhancing their spatiotemporal stability. In consequence, ongoing biodiversity loss may lead to greater fluctuations in herbivore populations and an increased risk of outbreaks. Our study provides novel insights into the mechanisms underlying bottom‐up regulation of herbivores, emphasizing the critical role of tree diversity in maintaining stable herbivore communities in a changing climate.
ISSN:15577015
00129615
DOI:10.1002/ecm.70026