Climate-induced tree-mortality pulses are obscured by broad-scale and long-term greening

Nature Ecology & Evolution, Journal Year: 2024, Volume and Issue: 8(5), P. 912 - 923

Published: March 11, 2024

Language: Английский

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Consistent stabilizing effects of plant diversity across spatial scales and climatic gradients

Nature Ecology & Evolution, Journal Year: 2022, Volume and Issue: 6(11), P. 1669 - 1675

Published: Sept. 19, 2022

Language: Английский

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Environmental heterogeneity modulates the effect of plant diversity on the spatial variability of grassland biomass

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: March 31, 2023

Abstract Plant productivity varies due to environmental heterogeneity, and theory suggests that plant diversity can reduce this variation. While there is strong evidence of effects on temporal variability productivity, whether mechanism extends across space remains elusive. Here we determine the relationship between spatial in 83 grasslands, quantify effect experimentally increased heterogeneity conditions relationship. We found communities with higher species richness (alpha gamma diversity) have lower as reduced abundance some be compensated for by other species. In contrast, high dissimilarity among local (beta positively associated suggesting changes composition scale up affect productivity. Experimentally weakens alpha diversity, reveals beta simultaneously decrease increase Our findings unveil generality diversity-stability space, suggest biotic homogenization reliability key ecosystem functions.

Language: Английский

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Latitudinal patterns of forest ecosystem stability across spatial scales as affected by biodiversity and environmental heterogeneity

Global Change Biology, Journal Year: 2023, Volume and Issue: 29(8), P. 2242 - 2255

Published: Jan. 11, 2023

Our planet is facing a variety of serious threats from climate change that are unfolding unevenly across the globe. Uncovering spatial patterns ecosystem stability important for predicting responses ecological processes and biodiversity to change. However, understanding latitudinal pattern scales underlying drivers still very limited. Accordingly, this study examines at local regional scale using natural assembly forest metacommunities distributed over large temperate region, considering range potential environmental drivers. We found communities (regional stability) asynchronous dynamics among (spatial asynchrony) both decreased with increasing latitude, whereas (local did not. tested series hypotheses potentially drive stability, although biodiversity, climatic history, resource conditions, heterogeneity varied multiple were affected by heterogeneity. In particular, α diversity positively associated while β asynchrony, relationships weak. provides first evidence temporal naturally assembled driven findings suggest preservation plant within between maintenance heterogeneous landscapes can be crucial buffer ecosystems higher latitudes faster more intense negative impacts in future.

Language: Английский

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Universal beta-diversity–functioning relationships are neither observed nor expected

Trends in Ecology & Evolution, Journal Year: 2023, Volume and Issue: 38(6), P. 532 - 544

Published: Feb. 17, 2023

Language: Английский

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Dominant species determine grazing effects on the stability of herbaceous community production at multiple scales in drylands

Journal of Applied Ecology, Journal Year: 2023, Volume and Issue: 60(9), P. 1917 - 1928

Published: July 10, 2023

Abstract Sustainable provision of critical ecosystem services in drylands is reliant on their stability under anthropogenic disturbances. Livestock grazing and shrub encroachment are the primary drivers disturbance that impact biodiversity production dynamics. However, effects at multiple scales, particularly following transition from grass‐dominated to shrub‐encroached drylands, still largely unexplored. Here, we conducted comparable sheep‐grazing experiments two types (grass‐dominated vs. grasslands) Mongolia Plateau explore scales. We examined how affected temporal aboveground biomass herbaceous communities both grasslands, through potential mechanisms: insurance changes population‐level individual species. found an increase sheep intensity had significant negative by decreasing species asynchrony spatial but it no population stability, consequently leading reductions community grasslands. grazing‐increased cancelled out grazing‐decreased contributing Likely, because grazing‐induced relative abundance dominant were more noticeable grasslands than Moreover, was directly correlated increases not despite positive relationships between drylands. Synthesis applications . Our results indicate can decrease this effect attenuated with suggesting be altered Furthermore, grasses plays a crucial role stabilizing should considered promoting sustainable functioning

Language: Английский

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Abiotic stress and human activities reduce plant diversity in desert riparian forests

Ecological Indicators, Journal Year: 2023, Volume and Issue: 152, P. 110340 - 110340

Published: May 19, 2023

Plant diversity is very important for maintaining the structure and function of ecosystems. Affected by climate change, it increasingly sensitive to abiotic stresses, especially in ecologically fragile arid areas. Moreover, human activities have accelerated this process, resulting a reduction plant diversity. Revealing spatial pattern effecting mechanisms at watershed level beneficial biodiversity conservation. Here, we analyze changes its influencing factors desert riparian forest lower reaches Kashgar River using niche theory, interspecific association analysis, geographic information system (GIS) mapping, redundancy analysis (RDA), structural equation modelling (SEM). We show that breadth plants varies from 0.174 0.451, overlap ranges 0.059 0.995, Populus euphratica Tamarix chinensis are dominant species improving environment stable ecological balance communities. has heterogeneity woody higher than herbaceous plants, which decreases with increasing groundwater depth salt content. Groundwater was key factor stress In fact, works soil moisture LULC change significantly reduced (P < 0.05) destroyed ecosystem balance. NDVI were positively correlated 0.01). It useful understanding predicting Therefore, effective implementation water conveyance can promote rise, alleviate shortage, reduce content, increase addition, reasonable control improvement vegetation cover will help maintain

Language: Английский

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Larger nations benefit more than smaller nations from the stabilizing effects of crop diversity

Nature Food, Journal Year: 2024, Volume and Issue: 5(6), P. 491 - 498

Published: May 24, 2024

Language: Английский

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Effects of plant diversity, soil microbial diversity, and network complexity on ecosystem multifunctionality in a tropical rainforest

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 14

Published: Sept. 18, 2023

Introduction Plant diversity and soil microbial are important driving factors in sustaining ecosystem multifunctionality (EMF) terrestrial ecosystems. However, little is known about the relative importance of plant diversity, network complexity to EMF tropical rainforests. Methods This study took rainforest Xishuangbanna, Yunnan Province, China as research object, quantified various functions such organic carbon stock, nutrient cycling, biomass production, water regulation explore relationship effect EMF. Results Our results exhibited that decreased with increasing liana species richness, fungal complexity, which followed a trend initially then decreasing bacterial while complexity. Soil primarily affected cycling. Additionally, richness had significant negative on stocks. The random forest model suggested indicated more structural equation revealed tree displayed significantly positive effects EMF, via pathway. We also observed indirectly through bulk density thus influencing Simultaneously, we further found was main indicator rainforest, primary factor. Discussion findings provide new insight into between biodiversity contribution microibal function global climate change.

Language: Английский

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Diversity–stability relationships across organism groups and ecosystem types become decoupled across spatial scales

Ecology, Journal Year: 2023, Volume and Issue: 104(9)

Published: July 4, 2023

The relationship between biodiversity and stability, or its inverse, temporal variability, is multidimensional complex. Temporal variability in aggregate properties, like total biomass abundance, typically lower communities with higher species diversity (i.e., the diversity-stability [DSR]). At broader spatial extents, regional-scale also regional (in plant systems) synchrony. However, focusing exclusively on properties of may overlook potentially destabilizing compositional shifts. It not yet clear how related to different components across scales, nor whether DSRs emerge a broad range organisms ecosystem types. To test these questions, we compiled large collection long-term metacommunity data spanning wide taxonomic groups (e.g., birds, fish, plants, invertebrates) types deserts, forests, oceans). We applied newly developed quantitative framework for jointly analyzing scales. quantified composition local metacommunities. scale, more diverse were less variable, but this effect was stronger than properties. found no stabilizing γ-diversity β-diversity played strong role reducing synchrony, which reduced variability. Spatial synchrony differed among taxa, suggesting differences stabilization by processes. strongly driven Across our results suggest that high does consistently stabilize at scales without sufficient reduce

Language: Английский

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