Biodiversity mitigates drought effects in the decomposer system across biomes

Proceedings of the National Academy of Sciences, Journal Year: 2024, Volume and Issue: 121(13)

Published: March 18, 2024

Multiple facets of global change affect the earth system interactively, with complex consequences for ecosystem functioning and stability. Simultaneous climate biodiversity are particular concern, because may contribute to resistance resilience mitigate impacts. Yet, extent generality how interact remain insufficiently understood, especially decomposition organic matter, a major determinant biosphere–atmosphere carbon feedbacks. With an inter-biome field experiment using large rainfall exclusion facilities, we tested drought, common prediction models many parts world, in decomposer drive forest ecosystems interactively. Decomposing leaf litter lost less (C) nitrogen (N) five different biomes following partial compared conditions without exclusion. An increasing complexity community alleviated drought effects, full compensation when large-bodied invertebrates were present. Leaf mixing increased diversity species richness, which contributed counteracting effects on C N loss, although much smaller degree than complexity. Our results show at relevant spatial scale covering distinct zones that both, communities plant floors have strong potential dynamics during decomposition. Preserving multiple trophic levels contributes appears critical maintain processes under ongoing change.

Language: Английский

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The inverse latitudinal diversity gradient and drivers in keratinophagous trogid beetles (Coleoptera: Trogidae)

Insect Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 2, 2025

Language: Английский

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Litter mixture effects on nitrogen dynamics during decomposition predominantly vary among biomes but little with litter identity, diversity and soil fauna

Soil Biology and Biochemistry, Journal Year: 2024, Volume and Issue: 199, P. 109602 - 109602

Published: Sept. 24, 2024

Language: Английский

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Litter quality and decomposer complexity co-drive effect of drought on decomposition

Forest Ecosystems, Journal Year: 2024, Volume and Issue: 11, P. 100194 - 100194

Published: Jan. 1, 2024

Litter decomposition is key to ecosystem carbon (C) and nutrient cycling, but this process anticipated weaken due projected more extensive prolonged drought. Yet how litter quality decomposer community complexity regulate in response drought less understood. Here, a five-year manipulative experiment Masson pine forest, leaf from four subtropical tree species (Quercus griffithii Hook.f. & Thomson ex Miq., Acacia mangium Willd., Pinus massoniana Lamb., Castanopsis hystrix Miq.) representing different qualities were decomposed for 350 d litterbags of three mesh sizes (i.e., 0.05, 1, 5 mm), respectively, under natural conditions 50% throughfall rain exclusion treatment. Litterbags increasing discriminate decomposers communities (i.e. microorganisms, microorganisms mesofauna, meso- macrofauna) that access the represent an complexity. The amount C nitrogen (N) loss, changes their ratio (C/Nloss), as well small medium-sized including nematodes, arthropods, investigated. We found did not affect N loss decreased C/Nloss use efficiency) irrespective However, effect on both dependent quality, while interactively affected loss. Increasing enhanced allowing additional macro-fauna mitigated negative microbial-driven decomposition. Furthermore, increased diversity altered trophic structure nematode contributed mitigation effects via cascading interactions. Our results show soil co-drive This experimental finding provides new insight into mechanisms controlling forest floor cycling future global change scenarios.

Language: Английский

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Designing nature to be a solution for climate change in cities: A meta-analysis

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 954, P. 176735 - 176735

Published: Oct. 8, 2024

Language: Английский

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Biodiversity of multi-trophic biological communities within riverine sediments impacted by PAHs contamination and land use changes

Environmental Pollution, Journal Year: 2024, Volume and Issue: 361, P. 124884 - 124884

Published: Sept. 3, 2024

Language: Английский

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The focus on addressing vegetation risks in China should shift from the western past to the eastern future

Ecological Indicators, Journal Year: 2024, Volume and Issue: 167, P. 112605 - 112605

Published: Sept. 14, 2024

Language: Английский

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Linking individualistic growth stability of trees to the complexity of understorey layers

Journal of Ecology, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 28, 2024

Abstract Tree‐growth stability is crucial in upholding forest ecosystem services. Despite extensive research on the correlation between tree growth and climate, influence of understorey tree‐growth remains understudied. We surveyed plots collected tree‐ring samples along two elevational gradients, ranging from 3600 to 4400 m a.s.l., southeastern Tibetan Plateau. An index was developed quantify individualistic trees, its linkage with complexity structure examined. found that more pronounced complex communities. In forests higher complexity, proportion trees experiencing release increased during wet years, while those suppression augmented dry years. Interestingly, a subset exhibits abnormal increases even driest whereas another shows reductions wettest Furthermore, structures exhibited showcasing these types ‘anti‐phase’ statuses. Synthesis . Our study underscores structures. The overstorey layer conveyed at expense individual‐level synchrony These findings emphasize necessity for attention interplay community when assessing impacts future climate change dynamics.

Language: Английский

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Persistent Macrodetritivore Functional Diversity and Identity Effects on Litter Mass Loss Under Drought in a Mediterranean Forest Understory Model Ecosystem

Published: Jan. 1, 2024

Language: Английский

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