Nitrogen availability and plant functional composition modify biodiversity‐multifunctionality relationships

Ecology Letters, Journal Year: 2024, Volume and Issue: 27(1)

Published: Jan. 1, 2024

Abstract Biodiversity typically increases multiple ecosystem functions simultaneously (multifunctionality) but variation in the strength and direction of biodiversity effects between studies suggests context dependency. To determine how different factors modulate diversity effect on multifunctionality, we established a large grassland experiment manipulating plant species richness, resource addition, functional composition (exploitative vs. conservative species), enemy abundance. We measured ten above‐ belowground calculated multifunctionality. Species richness both increased their were dependent. Richness multifunctionality when communities assembled with fast‐growing species. This was because slow more redundant effects, whereas fast promoted functions. Functional also this dampened by nitrogen enrichment presence. Our study that shift towards will not only alter functioning biodiversity‐functioning relationships.

Language: Английский

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Assessing the importance of species and their assemblages for the biodiversity‐ecosystem multifunctionality relationship

Ecology, Journal Year: 2023, Volume and Issue: 104(8)

Published: May 19, 2023

Biodiversity changes, such as decline in species richness and biotic homogenization, can have grave consequences for ecosystem functionality. Careful investigation of biodiversity-ecosystem multifunctionality linkages with due consideration conceptual technical challenges is required to make the knowledge practically useful managing social-ecological systems. In this paper, we introduced different methods assess perspectives regarding issue diversity-multifunctionality, including a possible multifunctional redundancy/uniqueness, influences number identity functions on multifunctionality. particular, aimed align detecting mechanisms underpinning diversity-multifunctional relationships that are free from statistical biases. Based set novel excluded analytical biases resulting differences identities multiple considered, found substantial portion disproportionately supported diversity effects were more markedly observed when considered. These results jointly emphasize individual are, some extent, both functionally unique well redundant, highlighting complexity necessity managed assemblages retain high levels diversity. We also relative magnitude uniqueness or redundancy differ between therefore should be defined context. further only small subset was identified significantly less important, especially at low Taken together, given level identified, stress unraveling hierarchical roles biodiversity levels, their assemblages, research priority, theory practice.

Language: Английский

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Understanding the drivers of ecosystem multifunctionality in the Mongolian steppe: The role of grazing history and resource input

Agriculture Ecosystems & Environment, Journal Year: 2023, Volume and Issue: 359, P. 108748 - 108748

Published: Sept. 20, 2023

Language: Английский

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Hill–Chao numbers allow decomposing gamma multifunctionality into alpha and beta components

Ecology Letters, Journal Year: 2023, Volume and Issue: 27(1)

Published: Dec. 10, 2023

Abstract Biodiversity–ecosystem functioning (BEF) research has provided strong evidence and mechanistic underpinnings to support positive effects of biodiversity on ecosystem functioning, from single multiple functions. This knowledge gained mainly at the local alpha scale (i.e. within ecosystems), but increasing homogenization landscapes in Anthropocene raised potential that declining beta (across ecosystems) gamma scales is likely also impact functioning. Drawing theory, we propose a new statistical framework based Hill–Chao numbers. The allows decomposition multifunctionality into components, critical hitherto missing tool BEF research; it weighting individual Through proposed decomposition, results for are discovered. Our novel approach applicable across ecosystems connects local‐ landscape‐scale assessments experiments natural settings.

Language: Английский

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Tree diversity across multiple scales and environmental heterogeneity promote ecosystem multifunctionality in a large temperate forest region

Global Ecology and Biogeography, Journal Year: 2024, Volume and Issue: 33(9)

Published: June 6, 2024

Abstract Aim Biodiversity across different scales provides multidimensional insurance for ecosystem functioning. Although the effects of biodiversity on multifunctionality are well recorded in local communities, they remain poorly understood (from to larger spatial scales). This study evaluates how multiple attributes maintain from regional scales, diverse environmental gradients. Location North‐eastern China. Time Period 2017. Major Taxa Studied Woody plants. Methods We define using both averaged and modified multiple‐threshold approaches. Multiple dimensions varying were measured within framework Hill–Chao numbers. Using variance decomposition, linear mixed models structural equation modelling, we explored tree diversity at affect multifunctionality, these relationships modulated by drivers. Results found that α‐ β‐diversity critical community while between species, functional phylogenetic decoupled thresholds Phylogenetic species α‐diversity are, respectively, more important promoting high‐ moderate‐threshold (e.g. EMF T90 T50 ) communities. Environmental drivers typically have stronger than multifunctionality. Soil climatic conditions had either direct or indirect ones mediated α‐diversity. heterogeneity is high‐threshold exerting directly indirectly through β‐diversity. Latitude not only influences but also modulates it Main Conclusions underscores positive dimensions. Based our findings, conclude any design a forested landscape aimed maximizing should consider maintaining high as forest scales.

Language: Английский

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Niche and Interspecific Association of Dominant Arbor Species in Quercus Communities in the Qinling Mountains, China

Global Ecology and Conservation, Journal Year: 2025, Volume and Issue: unknown, P. e03404 - e03404

Published: Jan. 1, 2025

Language: Английский

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A mixed method evaluation of ecosystem services and services-to-ecosystems illuminates culturally important trees in a settled landscape

Ecosystems and People, Journal Year: 2025, Volume and Issue: 21(1)

Published: Jan. 30, 2025

Biodiversity loss can lead to losses in ecological functions, ecosystem services, and cultural values. Yet, literature that empirically relates species' importance is scarce. We investigate tree a settled landscape Canada by combining biophysical plot sampling (n = 122) semi-structured interviews 31). examined relationships between importance, services (benefits from trees), services-to-ecosystems (actions toward the abundance, mortality, modification of trees. found abundance generally correlated with emphasis. Maple was most biophysically abundant culturally important tree, associated greatest diversity services. However, some trees were mentioned disproportionately more frequently than their likely due high mortality case ash apples. Apple linked diverse services-to-ecosystems. Our findings suggest provisioning services-to-ecosystems, which may, turn, influence these genera on landscape. This connection could be potential lever for wider biocultural conservation. study contributes ongoing discussions about highlights understanding human-nature relationships. The results have implications protected area management, suggesting reduced human-tree interactions negatively impact

Language: Английский

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Uncovering the mechanisms underpinning divergent environmental change impacts on biodiversity and ecosystem functioning

Ecology, Journal Year: 2025, Volume and Issue: 106(2)

Published: Feb. 1, 2025

Abstract Environmental change drivers (ECDs) impact ecological communities in various ways, from enrichment that increases species' performance and abundance, to stressors reduce their reproduction growth. These effects can affect species coexistence as well ecosystem functioning the relationship between biodiversity function (BEF). Predicting of ECDs on BEF relationships requires understanding how fundamental population parameters, including intrinsic rate increase ( r ), carrying capacity K interspecific interactions (). Here, we use numerical simulations based theoretical models show explicit links these parameters nature relationships. Depending mean variance community members, or decrease both intercept slope. We further derive hypotheses about will be affected by multiple when consider functions. Our simple approach provides a robust framework explain why disparate studies meta‐analyses come opposing conclusions resilience sensitivity anthropogenic influences. modeling approaches offer generalized predictive guide conservation, restoration, green infrastructure design under environmental change.

Language: Английский

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Global Warming Drives Shifts in the Suitable Habitats of Subalpine Shrublands in the Hengduan Mountains Region in China

Forests, Journal Year: 2025, Volume and Issue: 16(4), P. 624 - 624

Published: April 2, 2025

Subalpine shrubland is an important vegetation type in the Hengduan Mountains region of China, and its distribution has been substantially influenced by global warming. In this research, four subalpine shrub communities were selected: Rhododendron heliolepis Franch. scrub, flavidum Quercus monimotricha (Hand.-Mazz.) Hand.-Mazz. Pinus yunnanensis var. pygmaea (Hsueh ex C. Y. Cheng, W. Cheng & L. K. Fu) Hsueh scrub. A MaxEnt model was used to assess suitable habitats their primary drivers shrublands China under different climate scenarios. Our results indicate following: (1) The habitat areas exhibit a predominant within region, with small populations Himalayas Wumeng Mountain. Temperature precipitation are identified as influencing shrublands, temperature factor more influential than factor. Furthermore, contribution rate slope scrub 19.2%, which cannot be disregarded. (2) Under future scenarios, total show expanding trend. However, highly three (Rhododendron scrub) contracting trend high-carbon-emission scenario (SSP585). (3) Driven warming, shift toward higher elevations northwest, while varies carbon emission much smaller range other scrubs. study contributes valuable insights into spatiotemporal dynamics change, providing scientific guidance for biodiversity conservation ecosystem restoration.

Language: Английский

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How Do Bird Population Trends Relate to Human Pressures Compared to Economic Growth?

Sustainability, Journal Year: 2025, Volume and Issue: 17(8), P. 3506 - 3506

Published: April 14, 2025

Biodiversity loss is a global environmental concern, mainly driven by human-induced factors, encompassing both direct and indirect drivers. This study investigates the long-term relationship between either Human Footprint Index (HFI), which measures extent of human pressures (i.e., drivers), or Gross Domestic Product (GDP), measure economic growth driver) biodiversity change, using bird population trends as indicators. The analysis was based on time-series data for Portugal (2004–2023) aggregated at national sub-national scales, representative different socio-economic contexts. Multi-species indices were regressed against HFI GDP Autoregressive Distributed Lag (ARDL) to identify long-run relationships. Bird varied species group (common, agricultural, forest birds) context underscoring importance assessments. had varying predictive value across groups contexts, with showing greater consistency, particularly predictor agricultural birds. While most models showed negative association abundance GDP, revealing signal populations some suggested mixed results, indicating that conservation policies must take local contexts into account.

Language: Английский

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