Stable Soil Biota Network Enhances Soil Multifunctionality in Agroecosystems

Global Change Biology, Journal Year: 2025, Volume and Issue: 31(1)

Published: Jan. 1, 2025

ABSTRACT Unraveling how agricultural management practices affect soil biota network complexity and stability these changes relate to processes functions is critical for the development of sustainable agriculture. However, our understanding knowledge still remains unclear. Here, we explored effects intensity on complexity, stability, multifunctionality, as well relationships among factors. Four typical land use types representing a gradient disturbance were selected in calcareous red soils southwest China. The four with increasing included pasture, sugarcane farmland, rice paddy fields, maize cropland. cohesion, topological features (e.g., average degree, clustering coefficient, path length, diameter, graph density, modularity), variation degree used evaluate strength interactions between species, respectively. results showed that intensive increased species competition but decreased stability. Soil microfauna nematode, protozoa, arthropoda) stabilized entire through top‐down control. rather than or biodiversity predicted dynamics multifunctionality. Specifically, stable communities, both organism groups archaea, bacteria, fungi, arthropoda, viridiplantae, viruses), support high In particular, had more contributions multifunctionality microbial communities. This result was further supported by analysis, which modules 1 4 greater numbers explained Our study highlights should be considered key factor improving sustainability crop productivity context global intensification.

Language: Английский

---

Environmental Gradients Linked to Human Impacts, Not Species Richness, Drive Regional Variation in Community Stability in Coral Reef Fishes

Ecology Letters, Journal Year: 2025, Volume and Issue: 28(4)

Published: April 1, 2025

The stabilising effect of biodiversity on aggregate community properties is well-established experimentally, but its importance in naturally assembled communities at larger scales requires considering covariation with other biotic and abiotic factors. Here, we examine the diversity-stability relationship a 27-year coral reef fish time series 39 reefs spanning 10° latitude Australia's Great Barrier Reef. We find that an apparent between species richness synchrony population fluctuations driven by these two variables' proximity to coastal influences. Additionally, cover volatility destabilises assemblages increasing average variability not synchrony, mediated changes intensity density regulation community. Our findings indicate environmental factors, both which are strongly influenced anthropogenic activity, impact stability more than diversity does, distinct pathways reflecting different underlying community-dynamic processes.

Language: Английский

---

Cross‐Taxa Analysis of Long‐Term Data Reveals a Positive Biodiversity‐Stability Relationship With Taxon‐Specific Mechanistic Underpinning

Ecology Letters, Journal Year: 2025, Volume and Issue: 28(4)

Published: April 1, 2025

Anthropogenic environmental change is altering biodiversity at unprecedented rates, threatening the stability of ecosystem services on which humans depend. However, most what known about biodiversity-stability relationships comes from experimental studies making extrapolation to real ecosystems difficult. Here, we ask whether shape and underlying mechanisms relationship vary among taxa in real-world communities. Our study harnesses power six terrestrial aquatic long-term monitoring datasets, encompassing entire assemblages hundreds georeferenced sites providing 20 years long community measurements, covering a 1200 km latitudinal gradient across Finland. In general, detect positive between species richness stability. Structural equation modelling reveals that this modified by functional trait composition, with specific varying taxa. first highlight importance traits elucidating both general taxon-specific impacts

Language: Английский

---

A unified framework for partitioning the drivers of stability of ecological communities

Global Ecology and Biogeography, Journal Year: 2024, Volume and Issue: 33(5)

Published: March 14, 2024

Abstract Aim Identifying the drivers of ecological stability is critical for ensuring maintenance ecosystem functioning and services, particularly in a changing world. Different mechanisms by which biological communities stabilize functions (i.e. “stabilizing effects”) have been proposed, yet with various theoretical expectations debated conclusions. Here we propose unified framework that aims at reconciling, combining, different approaches to reliably test strength three stabilizing effects on temporal constancy functions: (a) dominant species, (b) species asynchrony, (c) diversity. Innovation Compared existing developments approach allows, first time, disentangling these level individual communities. So far this was not possible, conclusions depended indirect tests comparative analyses across We also graphical representation relative contributions ternary plot, allowing us easily compare sampled contexts standardized space. Main Our study answers current need link concepts data analysis. The present development promises flexible deeper understanding stabilization biodiversity importance its components.

Language: Английский

---

Vegetation resistance to increasing aridity when crossing thresholds depends on local environmental conditions in global drylands

Communications Earth & Environment, Journal Year: 2024, Volume and Issue: 5(1)

Published: July 16, 2024

Abstract The crossing of aridity thresholds triggers abrupt changes in multiple functional and structural ecosystem attributes across global drylands. While we understand the consequences associated with thresholds, key factors influencing dryland vegetation resistance when them remain unclear. Here, used field observations from 58 sites five continents satellite remote sensing data (2000-2022) to show that plant richness, soil moisture dynamics texture, bare fraction are important variables contributing resistance. Additionally, drought history (frequency magnitude past droughts) is interaction richness texture. Interestingly, species was negatively related resistance, except areas higher grasslands. Our results highlight depends on local environmental conditions. Enhancing our understanding for an step towards conservation efforts sustainable management strategies.

Language: Английский

---

Long-term moderate fertilization increases the complexity of soil microbial community and promotes regulation of phosphorus cycling genes to improve the availability of phosphorus in acid soil

Applied Soil Ecology, Journal Year: 2023, Volume and Issue: 194, P. 105178 - 105178

Published: Nov. 7, 2023

Language: Английский

---

High response diversity and conspecific density‐dependence, not species interactions, drive dynamics of coral reef fish communities

Ecology Letters, Journal Year: 2024, Volume and Issue: 27(4)

Published: April 1, 2024

Abstract Species‐to‐species and species‐to‐environment interactions are key drivers of community dynamics. Disentangling these in species‐rich assemblages is challenging due to the high number potentially interacting species (the ‘curse dimensionality’). We develop a process‐based model that quantifies how intraspecific interspecific interactions, species’ covarying responses environmental fluctuations, jointly drive fit reef fish abundance time series from 41 reefs Australia's Great Barrier Reef. found fluctuating relative abundances driven by heterogenous whereas negligible. Species differences long‐term average variation magnitudes both conspecific density‐dependence density‐independent growth rates. This study introduces novel approach overcoming curse dimensionality, which reveals highly individualistic dynamics coral communities imply level niche structure.

Language: Английский

---

Why are plant communities stable? Disentangling the role of dominance, asynchrony and averaging effect following realistic species loss scenario

Journal of Ecology, Journal Year: 2024, Volume and Issue: 112(8), P. 1832 - 1841

Published: July 4, 2024

Abstract A growing number of studies have demonstrated that biodiversity is a strong and positive predictor ecosystem temporal stability by simultaneously affecting multiple underlying mechanisms stability, dominance, asynchrony averaging effects. However, to date, no study has disentangled the relative role these key in experiments. We created species richness gradient mimicking loss rare assessed on community and, more importantly, quantified three stabilizing mechanisms, dominance (stabilization due stable dominants compared rest community), between species), effects (pure effect diversity) across gradient. found extreme negatively impacted but just were enough stabilize biomass production level similar highly diverse communities. communities resulted from differing contributions each mechanism, depending diversity. Since less abundant temporally variable, stabilized populations remaining species. The subordinate reduced effects, increased effect. Hence, played major poor communities, while drove most rich Overall, only minor role, accounting for 5%–15% stabilization, dominating forces contributing ~85%–95% total stabilization. Synthesis . This highlights importance roles dominant long‐term first time, disentangles effect, real‐world experiment.

Language: Английский

---

Effects of Artificial Reefs on the Macrobenthic Community Structure Through Functional Trait Analysis

Aquatic Conservation Marine and Freshwater Ecosystems, Journal Year: 2025, Volume and Issue: 35(2)

Published: Feb. 1, 2025

ABSTRACT Artificial reefs enhance marine biodiversity by increasing habitat complexity and heterogeneity, which in turn provide living space for various species. Macrobenthos, an important component of aquatic ecosystems, with limited mobility sensitivity to environmental changes, commonly serve as indicators ecosystem health. This study, conducted the summer autumn 2022 Sishili Bay (SB) Changdao Archipelago (CA), Yantai, China, aimed evaluate effects artificial on macrobenthic community structure using functional trait analysis. The nonmetric multidimensional scaling (nMDS) analysis based species abundance occurrence frequency did not reveal any clear separation between areas inside outside reefs. However, construction increased number macrobenthos, especially Mollusca Feeding type, a key trait, distinguished reefs, significant spatial temporal variations. driving differences reef nonreef include carnivorous Lumbrineris longifolia Glycinde bonhourei omnivorous Eriopisella sechellensis Sigambra bassi , were pivotal observed variations relative abundance. Functional richness (FRic) ( S ) showed consistent patterns variation, both contributing improving stability summer. autumn, was reduced extraordinary dominance single Multiple factors rather than one significantly influenced distribution diversity, reflecting complex interplay seasonal dynamics. study used assess impact structure, offering more effective measure species‐level assessments.

Language: Английский

---

Soil functional microbes can modify the plant functional diversity mainly through changing the plant functional traits of evergreen species in karst forests

Plant and Soil, Journal Year: 2025, Volume and Issue: unknown

Published: March 19, 2025

Language: Английский

---