The significance of tree-tree interactions for forest ecosystem functioning

Basic and Applied Ecology, Год журнала: 2021, Номер 55, С. 33 - 52

Опубликована: Фев. 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.

Язык: Английский

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Destabilizing Effects of Environmental Stressors on Aquatic Communities and Interaction Networks across a Major River Basin

Environmental Science & Technology, Год журнала: 2023, Номер 57(20), С. 7828 - 7839

Опубликована: Май 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.

Язык: Английский

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Ecosystem consequences of invertebrate decline

Current Biology, Год журнала: 2023, Номер 33(20), С. 4538 - 4547.e5

Опубликована: Сен. 26, 2023

Язык: Английский

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

Soil Biology and Biochemistry, Год журнала: 2024, Номер 191, С. 109331 - 109331

Опубликована: Янв. 24, 2024

Язык: Английский

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Plant diversity enhances ecosystem multifunctionality via multitrophic diversity

Nature Ecology & Evolution, Год журнала: 2024, Номер 8(11), С. 2037 - 2047

Опубликована: Авг. 29, 2024

Язык: 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, Год журнала: 2025, Номер unknown

Опубликована: Март 27, 2025

Язык: Английский

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Embedding information flows within ecological networks

Nature Ecology & Evolution, Год журнала: 2025, Номер 9(4), С. 547 - 558

Опубликована: Апрель 4, 2025

Язык: Английский

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fluxweb: An R package to easily estimate energy fluxes in food webs

Methods in Ecology and Evolution, Год журнала: 2018, Номер 10(2), С. 270 - 279

Опубликована: Окт. 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.

Язык: Английский

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Horizontal and vertical diversity jointly shape food web stability against small and large perturbations

Ecology Letters, Год журнала: 2019, Номер 22(7), С. 1152 - 1162

Опубликована: Май 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.

Язык: Английский

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Soil fauna diversity and chemical stressors: a review of knowledge gaps and roadmap for future research

Ecography, Год журнала: 2021, Номер 44(6), С. 845 - 859

Опубликована: Фев. 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.

Язык: Английский

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