Why are biodiversity—ecosystem functioning relationships so elusive? Trophic interactions may amplify ecosystem function variability DOI
Dan Wu, Chi Xu, Shaopeng Wang

et al.

Journal of Animal Ecology, Journal Year: 2022, Volume and Issue: 92(2), P. 367 - 376

Published: Sept. 5, 2022

The relationship between biodiversity and ecosystem functions (BEFs) has attracted great interest. Studies on BEF have so far focused the average trend of function as species diversity increases. A tantalizing but rarely addressed question is why large variations in are often observed across systems with similar diversity, likely obscuring BEFs. Here we use a multi-trophic food web model combination empirical data to examine relationships richness variation (VEFs) including biomass, metabolism, decomposition, primary secondary production. We then probe mechanisms underlying these relationships, focusing role trophic interactions. While our results reinforce previously documented positive found that exhibit significant within each level magnitude this displays hump-shaped richness. Our analyses demonstrate VEFs reduced when consumer increases through elevated nonlinearity interactions, and/or basal such producers decomposers decreases. This explanation supported by 34-year time series from Gulf Riga ecosystem. work suggests loss may not only result decline, also reduce predictability generating greater variability among ecosystems. It thus helps reconcile debate generality disentangle drivers stability. interactions their strengths mediated functional responses shaping warrants further investigations better incorporation into biodiversity-ecosystem functioning research.

Language: Английский

The significance of tree-tree interactions for forest ecosystem functioning DOI Creative Commons
Stefan Trogisch, Xiaojuan Liu, Gemma Rutten

et al.

Basic and Applied Ecology, Journal Year: 2021, Volume and Issue: 55, P. 33 - 52

Published: Feb. 9, 2021

Global change exposes forest ecosystems to many risks including novel climatic conditions, increased frequency of extremes and sudden emergence spread pests pathogens. At the same time, landscape restoration has regained global attention as an integral strategy for climate mitigation. Owing unpredictable future need new forests that provide multiple ecosystem services, mixed-species have been advocated this purpose. However, successful establishment mixed requires intrinsic knowledge biodiversity's role functioning. In respect, a better understanding tree-tree interactions how they contribute observed positive tree species richness effects on key functions is critical. Here, we review current underlying mechanisms argue net biodiversity at community scale may emerge from dominance over negative local neighbourhood scale. second step, demonstrate immediate neighbourhood's can be systematically assessed in diversity experiment. The expected results will improve predictions about functioning based general principles. We urgently required guide design mixtures newly planted forests.

Language: Английский

Citations

73
Destabilizing Effects of Environmental Stressors on Aquatic Communities and Interaction Networks across a Major River Basin DOI
Feilong Li, Yan Zhang, Florian Altermatt

et al.

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(20), P. 7828 - 7839

Published: May 8, 2023

Human-driven environmental stressors are increasingly threatening species survival and diversity of river systems worldwide. However, it remains unclear how the affect stability changes across aquatic multiple communities. Here, we used DNA (eDNA) data sets from a human-dominated in China over 3 years analyzed communities under persistent anthropogenic stressors, including land use pollutants. First, found that significantly reduced multifaceted (e.g., richness, Shannon's diversity, Simpson's diversity) but increased synchrony Second, structures interaction networks inferred an empirical meta-food web were changed for example, resulting decreased network modularity negative/positive cohesion. Third, piecewise structural equation modeling proved stress-induced decline mainly depended upon diversity-mediated pathways rather than direct effects stress per se; specifically, increase main biotic drivers variation. Overall, our study highlights destabilizing on as well mechanistic dependencies, through reducing increasing synchrony, changing networks.

Language: Английский

Citations

24
Ecosystem consequences of invertebrate decline DOI Creative Commons
Nico Eisenhauer, Raúl Ochoa‐Hueso, Yuanyuan Huang

et al.

Current Biology, Journal Year: 2023, Volume and Issue: 33(20), P. 4538 - 4547.e5

Published: Sept. 26, 2023

Language: Английский

Citations

23
Altered litter stoichiometry drives energy dynamics of food webs through changing multiple facets of soil biodiversity DOI

Bingbing Wan,

Andrew D. Barnes, Anton Potapov

et al.

Soil Biology and Biochemistry, Journal Year: 2024, Volume and Issue: 191, P. 109331 - 109331

Published: Jan. 24, 2024

Language: Английский

Citations

12
Plant diversity enhances ecosystem multifunctionality via multitrophic diversity DOI
Yi Li, Andreas Schuldt, Anne Ebeling

et al.

Nature Ecology & Evolution, Journal Year: 2024, Volume and Issue: 8(11), P. 2037 - 2047

Published: Aug. 29, 2024

Language: Английский

Citations

10
Food web structure mediates positive and negative effects of diversity on ecosystem functioning in a large floodplain river DOI
Dalmiro Borzone Mas, Pablo A. Scarabotti,

Patricio Alvarenga

et al.

The American Naturalist, Journal Year: 2025, Volume and Issue: unknown

Published: March 27, 2025

Language: Английский

Citations

1
fluxweb: An R package to easily estimate energy fluxes in food webs DOI
Benoît Gauzens, Andrew D. Barnes, Darren P. Giling

et al.

Methods in Ecology and Evolution, Journal Year: 2018, Volume and Issue: 10(2), P. 270 - 279

Published: Oct. 20, 2018

Understanding how changes in biodiversity will impact the stability and functioning of ecosystems is a central challenge ecology. Food web approaches have been advocated to link community composition with ecosystem by describing fluxes energy among species or trophic groups. However, estimating such remain problematic because current methods become unmanageable as network complexity increases. We developed generalization previous indirect estimation assuming steady-state system (Hunt et al., 1987, 1995, 2018); model estimates top-down manner equilibrium; each node's losses (consumption physiological) balances its consumptive gains. Jointly, we provide theoretical practical guidelines use fluxweb R package (available on CRAN at https://cran.rproject.org/web/packages/fluxweb/index.html). also present framework can merge allometric theory ecology (Brown, Gillooly, Allen, Savage, & West, 2004; calculate based easily obtainable organism-level data (i.e., body masses groups—e.g., plants, animals), opening food webs all complexities. Physiological (metabolic due death other than from predation within web) may be directly measured estimated using relationships metabolic ecology, gains are function ecological efficiencies that describe proportion used for biomass production. The primary output matrix nodes web. These role species, interest (e.g., predation; total predators), multiple functions, flux (system throughflow multitrophic functioning). Additionally, includes functions Jacobian matrix, providing insight into resilient small perturbations steady state. Overall, provides flexible set greatly increase feasibility implementing energetic more complex systems. As such, facilitates novel opportunities mechanistically linking quantitative real dynamic natural landscapes.

Language: Английский

Citations

79
Horizontal and vertical diversity jointly shape food web stability against small and large perturbations DOI Creative Commons
Zhao Qing-hua, Paul J. Van den Brink, Camille Carpentier

et al.

Ecology Letters, Journal Year: 2019, Volume and Issue: 22(7), P. 1152 - 1162

Published: May 16, 2019

The biodiversity of food webs is composed horizontal (i.e. within trophic levels) and vertical diversity the number levels). Understanding their joint effect on stability a key challenge. Theory mostly considers individual effects focuses small perturbations near equilibrium in hypothetical webs. Here, we study (modelled) empirical In modelled webs, increased decreased stability, respectively, with stronger positive producer at higher consumer diversity. Experiments an plankton web, where manipulated measured from species interactions resilience against large perturbations, confirmed these predictions. Taken together, our findings highlight need to conserve different levels ensure stability.

Language: Английский

Citations

57
Soil fauna diversity and chemical stressors: a review of knowledge gaps and roadmap for future research DOI Creative Commons
Léa Beaumelle, Lise Thouvenot, Jes Hines

et al.

Ecography, Journal Year: 2021, Volume and Issue: 44(6), P. 845 - 859

Published: Feb. 23, 2021

Soils harbour highly‐diverse invertebrate communities that play important roles for ecosystem services, including the mitigation of environmental pollution. Chemical stressors, such as pesticides, pharmaceuticals and metals, are being increasingly spread into ecosystems due to human activities. While it is crucial predict consequences chemical stressors soil biodiversity, toxicity often assessed using individuals or populations in laboratory cultures. There has been no systematic evaluation evidence documenting impacts on diverse, natural communities. Here, we use a comprehensive literature review 274 studies evaluate current state knowledge about effects chemicals fauna Most research had limited spatial scope, with noteworthy gaps regions potentially most threatened by pollution (Southern Hemisphere). Furthermore, reports generally were constrained few emblematic groups (nematodes, collembola earthworms) (metals). Future should address biases distribution studies, well taxonomic compounds considered. Specifically, emphasis indirect mediated species interactions, functioning interactive climate change, currently lacking literature, needed improve soil‐biodiversity conservation restoration efforts, predictions global diversity change.

Language: Английский

Citations

43
Use of compound‐specific nitrogen isotope analysis of amino acids in trophic ecology: assumptions, applications, and implications DOI Creative Commons
Naoto Ishikawa

Ecological Research, Journal Year: 2018, Volume and Issue: 33(5), P. 825 - 837

Published: May 25, 2018

Abstract Knowledge of the diet source and trophic position organisms is fundamental in food web science. Since 1980s, stable isotopes light elements such as 13 C 15 N have provided unique information on structure a variety ecosystems. More recently, novel isotope tools heavy elements, radioisotopes, compound‐specific analysis, been examined by researchers. Here I reviewed use nitrogen analysis amino acids (CSIA‐AA) useful dietary tracer ecology. Its three key features—(1) offsetting against isotopic variation; (2) universality discrimination factor; (3) sensitivity to mixing—were compared with conventional for bulk tissue organisms. These advantages CSIA‐AA will allow future researchers (1) estimate integrated ( iTP ) animal communities; infer transfer efficiency TTE webs; quantify contributions from different resources animals, all which are crucial understanding relationship between biodiversity multi‐trophic ecosystem functioning. Further development ecology be facilitated both methodological refinement its application wider range organisms, webs,

Language: Английский

Citations

57