Scaling‐up biodiversity‐ecosystem functioning research

Ecology Letters, Journal Year: 2020, Volume and Issue: 23(4), P. 757 - 776

Published: Jan. 29, 2020

Abstract A rich body of knowledge links biodiversity to ecosystem functioning (BEF), but it is primarily focused on small scales. We review the current theory and identify six expectations for scale dependence in BEF relationship: (1) a nonlinear change slope relationship with spatial scale; (2) scale‐dependent between stability extent; (3) coexistence within among sites will result positive at larger scales; (4) temporal autocorrelation environmental variability affects species turnover thus (5) connectivity metacommunities generates relationships by affecting population synchrony local regional (6) scaling food web structure diversity generate functioning. suggest directions synthesis that combine approaches metaecosystem metacommunity ecology integrate cross‐scale feedbacks. Tests this may remote sensing generation networked experiments assess effects multiple also show how anthropogenic land cover alter relationship. New research role guide policy linking goals managing ecosystems.

Language: Английский

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Combined effects of heatwaves and micropollutants on freshwater ecosystems: Towards an integrated assessment of extreme events in multiple stressors research

Global Change Biology, Journal Year: 2021, Volume and Issue: 28(4), P. 1248 - 1267

Published: Nov. 4, 2021

Abstract Freshwater ecosystems are strongly influenced by weather extremes such as heatwaves (HWs), which predicted to increase in frequency and magnitude the future. In addition these climate extremes, freshwater realm is impacted exposure various classes of chemicals emitted anthropogenic activities. Currently, there limited knowledge on how combined HWs affects structure functioning ecosystems. Here, we review available literature describing single effects different levels biological organization, obtain a holistic view their potential interactive effects. We only found few studies (13 out 61 included this review) that investigated combination with chemical pollution. The reported varied largely not within trophic but also depending studied endpoints for populations or individuals. Hence, owing little number available, no consistent could be highlighted at any level organization. Moreover, an imbalance towards species population experiments, five using multitrophic approach. This results gap relevant community ecosystem endpoints, prevents exploration important indirect can compromise food web stability. impairs validity risk assessments our ability protect Finally, highlight urgency integrating extreme events into multiple stressors provide specific recommendations guide further experimental research regard.

Language: Английский

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The significance of tree-tree interactions for forest ecosystem functioning

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

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Food web structure mediates positive and negative effects of diversity on ecosystem functioning in a large floodplain river

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

Published: March 27, 2025

Language: Английский

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Regulation of soil micro-foodwebs to root secondary metabolites in cultivated and wild licorice plants

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 828, P. 154302 - 154302

Published: March 8, 2022

Language: Английский

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Structure and Stability of Agroforestry Ecosystems: Insights into the Improvement of Service Supply Capacity of Agroforestry Ecosystems under the Karst Rocky Desertification Control

Forests, Journal Year: 2022, Volume and Issue: 13(6), P. 878 - 878

Published: June 4, 2022

Agroforestry provides essential ecosystem services; its structure and stability directly determine function service provision. Sustaining agroforestry functions services in the long term is necessary to meet needs of people. This study conducted a literature search statistical analysis based on WOS CNKI databases. We reviewed 136 reports studies stability. The landmark results are summarized five aspects ecosystems: characteristics, optimization, design, research, influence factors. On this basis, key scientific issues that need be solved summarized, their insights for improving supply capacity under rocky desertification control discussed.

Language: Английский

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Multitrophic richness enhances ecosystem multifunctionality of tropical shallow lakes

Functional Ecology, Journal Year: 2021, Volume and Issue: 35(4), P. 942 - 954

Published: Jan. 18, 2021

Abstract The role of multitrophic diversity in sustaining multiple functions simultaneously (multifunctionality) is still poorly understood natural communities, especially highly diverse aquatic ecosystems. Existing studies have focused on the effect single trophic group ecosystem function and individual functions, neglecting fact that groups are needed to maintain multifunctionality. Here, using a 16‐year database from tropical shallow lakes, we combined species richness nine into unique measurement richness. We then investigated influence within separate context also how removal any multifunctionality; interactions among affect showed had stronger positive multifunctionality than group. each decreased larger predatory vertebrates primary producers effects multifunctionality, but basal fuelled large‐sized predators, thus indirectly contributing increase Our study highlights need for preserving sustain ecosystems; thus, degradation ecosystems should strongly impair their functioning. A free Plain Language Summary can be found Supporting Information this article.

Language: Английский

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Addressing the Eltonian shortfall with trait‐based interaction models

Ecology Letters, Journal Year: 2022, Volume and Issue: 25(4), P. 889 - 899

Published: Jan. 15, 2022

We have very limited knowledge of how species interact in most communities and ecosystems despite trophic relationships being fundamental for linking biodiversity to ecosystem functioning. A promising approach fill this gap is predict interactions based on functional traits, but many questions remain about well we can different taxa, amounts input data. Here, built a new traits-based model European vertebrates found that even models calibrated with 0.1% the (100 out 71 k) estimated full vertebrate food web reasonably well. However, predators were easier than prey, especially some clades (e.g. fowl storks) local connectance was consistently overestimated. Our results demonstrate ability rapidly generate webs when empirical data are lacking-an important step towards more complete spatially explicit description webs.

Language: Английский

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Individual diet variability shapes the architecture of Antarctic benthic food webs

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: May 29, 2024

Abstract Antarctic biodiversity is affected by seasonal sea-ice dynamics driving basal resource availability. To (1) determine the role of intraspecific dietary variability in structuring benthic food webs sustaining biodiversity, and (2) understand how position topologically central species vary with cover, single individuals’ diets were studied isotopic analysis before breakup afterwards. Isotopic trophospecies (or Trophic Units) investigated reconstructed using Bayesian Mixing Models. As nodes, these used either ITUs regardless their taxonomic membership (ITU-webs) or assigned to (population-webs). Both compared taxonomic-webs based on taxa mean values. Higher availability after led simpler community structure, lower connectance linkage density. Intra-population diet compartmentalisation crucial determining showing population-webs be more complex, stable robust loss than taxonomic-webs. The core web, representing minimal ‘skeleton’ that expands opportunistically while maintaining web stability changing availability, was also identified. Central nodes included sea-urchin Sterechinus neumayeri bivalve Adamussium colbecki , whose described unprecedented detail. represent factors underlying Antarctica’s rich persistence.

Language: Английский

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Biodiversity mediates the effects of stressors but not nutrients on litter decomposition

eLife, Journal Year: 2020, Volume and Issue: 9

Published: June 26, 2020

Understanding the consequences of ongoing biodiversity changes for ecosystems is a pressing challenge. Controlled biodiversity-ecosystem function experiments with random loss scenarios have demonstrated that more diverse communities usually provide higher levels ecosystem functioning. However, it not clear if these results predict environmental cause non-random alterations in and community composition. We synthesized 69 independent studies reporting 660 observations impacts two pervasive drivers global change (chemical stressors nutrient enrichment) on animal microbial decomposer diversity litter decomposition. Using meta-analysis structural equation modeling, we show declines abundance explain reduced decomposition response to but nutrients. While chemical generally functioning, detrimental effects nutrients occurred only at high inputs. Thus, intense does always result stronger responses, illustrating complexity change. Overall, findings strong evidence observed depend kind change, are especially significant when human activities decrease biodiversity.

Language: Английский

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