Dominant species determine grazing effects on the stability of herbaceous community production at multiple scales in drylands DOI
Xiaoan Zuo, Elise S. Gornish, Sally E. Koerner

et al.

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

Towards mechanistic integration of the causes and consequences of biodiversity DOI
Shaopeng Wang, Pubin Hong, Peter B. Adler

et al.

Trends in Ecology & Evolution, Journal Year: 2024, Volume and Issue: 39(7), P. 689 - 700

Published: March 19, 2024

Language: Английский

Citations

16
Tree diversity reduces variability in sapling survival under drought DOI
Haben Blondeel, Joannès Guillemot, Nicolas Martin‐StPaul

et al.

Journal of Ecology, Journal Year: 2024, Volume and Issue: 112(5), P. 1164 - 1180

Published: April 8, 2024

Abstract Enhancing tree diversity may be important to fostering resilience drought‐related climate extremes. So far, little attention has been given whether can increase the survival of trees and reduce its variability in young forest plantations. We conducted an analysis seedling sapling from 34 globally distributed experiments (363,167 trees, 168 species, 3744 plots, 7 biomes) answer two questions: (1) Do drought alter mean plot‐level survival, with higher less variable as increases? (2) species that survive poorly monocultures better mixtures do specific functional traits explain monoculture survival? Tree richness reduced while (Rao's Q entropy) increased also variability. Importantly, reduction became stronger severity increased. found low survived comparatively when under drought. Species was positively associated resistance (indicated by hydraulic such turgor loss point), plant height conservative resource‐acquisition (e.g. leaf nitrogen concentration small size). Synthesis. The findings highlight: effectiveness for decreasing drought; importance altered response From ecological perspective, we recommend mixing considered stabilize particularly functionally diverse forests drought‐resistant promote high drought‐sensitive species.

Language: Английский

Citations

13
Neighbourhood species richness and drought‐tolerance traits modulate tree growth and δ13C responses to drought DOI Creative Commons
Florian Schnabel, Kathryn E. Barry, Sabine Eckhardt

et al.

Plant Biology, Journal Year: 2024, Volume and Issue: 26(2), P. 330 - 345

Published: Jan. 9, 2024

Abstract Mixed‐species forests are promoted as a forest management strategy for climate change adaptation, but whether they more resistant to drought than monospecific remains contested. In particular, the trait‐based mechanisms driving role of tree diversity under remain elusive. Using cores from large‐scale biodiversity experiment, we investigated growth and physiological stress responses ( i.e. increase in wood carbon isotopic ratio; δ 13 C) changes climate‐induced water availability (wet dry years) along gradients neighbourhood species richness drought‐tolerance traits. We hypothesized that increases decreases C these relationships modulated by abiotic climatic conditions) biotic context. characterised context using traits focal trees their neighbours. These related cavitation resistance versus resource acquisition stomatal control. Tree increased with richness. However, did not observe universal relief species‐rich neighbourhoods. The effects on were At either end each gradient, responded opposing directions during wet years. show species' can explain strength nature biodiversity–ecosystem functioning experimental communities experiencing drought. Mixing may universally relieve stress.

Language: Английский

Citations

12
Positive effects of tree species diversity on productivity switch to negative after severe drought mortality in a temperate forest experiment DOI Creative Commons
Tanvir Ahmed Shovon, Harald Auge,

Josephine Haase

et al.

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(3)

Published: March 1, 2024

Abstract The synthesis of a large body evidence from field experiments suggests more diverse plant communities are productive as well resistant to the effects climatic extremes like drought. However, this view is strongly based on data grasslands due limited empirical tree diversity experiments. Here we report relationship between and productivity over 10 years in experiment established 2005 that was then affected by 2018 mega‐drought central Europe. Across number years, species were significantly positively related; however, slope switched negative year Net increased through time, with complementarity making greater contributions net effect than selection effects. Complementarity clearly positive three‐ five‐species mixtures before drought (2012–2016) but found decrease Selection 2016 remained two‐, three‐, mixtures. survival Norway spruce ( Picea abies ) plummeted response drought, found. Taken together, our findings suggest per se may not buffer against impacts extreme composition tolerance (i.e., identity) will be important determinants community prevalence increases.

Language: Английский

Citations

11
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
Increased belowground tree carbon allocation in a mature mixed forest in a dry versus a wet year DOI Creative Commons
Ido Rog, Boaz Hilman, Hagar Fox

et al.

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(2)

Published: Feb. 1, 2024

Abstract Tree species differ in their carbon (C) allocation strategies during environmental change. Disentangling species‐specific and contribution to the C balance of mixed forests requires observations at individual tree level. We measured a complete set pools fluxes level five species, conifers broadleaves, co‐existing mature evergreen Mediterranean forest. Our study period included drought year followed by an above‐average wet year, offering opportunity test effect water availability on allocation. found that comparison uptake was lower dry use same, belowground sinks higher. Among major sinks, respiration largest (ca. 60%), while root exudation 10%) reproduction 2%) were those increased most year. Most trees relied stored starch for maintaining stable soluble sugars balance, but no significant differences detected aboveground storage between years. The detailed tree‐level analysis nonstructural carbohydrates δ 13 dynamics suggest interspecific among tissues, specifically response varying availability. Overall, our findings shed light forest physiological responses drought, increasing phenomenon under ongoing climate

Language: Английский

Citations

9
Forest growth resistance and resilience to the 2018–2020 drought depend on tree diversity and mycorrhizal type DOI Creative Commons
Lena Sachsenmaier, Florian Schnabel, Peter Dietrich

et al.

Journal of Ecology, Journal Year: 2024, Volume and Issue: 112(8), P. 1787 - 1803

Published: July 12, 2024

Abstract The frequency of consecutive drought years is predicted to increase due climate change. These droughts have strong negative impacts on forest ecosystems. Mixing tree species proposed the resistance and resilience communities. However, this promising diversity effect has not yet been investigated under extreme conditions in context complementary mycorrhizal associations their potential role improving water uptake. Here, we investigate whether promotes growth responses are modulated by associations. We used inventory data (2015–2021) from a young experiment Germany, manipulating richness (1, 2 4 species) type (communities containing arbuscular [AM] or ectomycorrhizal [EM] species, both). For all communities, calculated basal area increment periods before, during after concepts quantify drought. found declines 2018–2020 for most Contrary our hypothesis, did find that per se can buffer growth. while EM decreased with richness, they increased AM communities comprising both types. highlight among various mixtures only those mixed types outperformed respective monocultures Furthermore, drought, community tends segregate into ‘winner’ ‘loser’ terms diversity, indicating possible intensification competition. While cannot disentangle underlying mechanisms clarify mycorrhiza findings suggest within could help safeguard forests against increasing frequency. Synthesis . Drought depend association diverse holds promise restoration face

Language: Английский

Citations

9
Nonlinear response and driving mechanisms of ecological restoration project effectiveness to drought DOI Creative Commons
Xin Liu, Qi Wang, Xiaoyu Zhu

et al.

Ecological Indicators, Journal Year: 2025, Volume and Issue: 170, P. 113055 - 113055

Published: Jan. 1, 2025

Language: Английский

Citations

1
Biotic and Abiotic Drivers of Ecosystem Temporal Stability in Herbaceous Wetlands in China DOI
Guodong Wang,

Nanlin Hu,

Yann Hautier

et al.

Global Change Biology, Journal Year: 2025, Volume and Issue: 31(1)

Published: Jan. 1, 2025

ABSTRACT Maintaining the stability of ecosystems is critical for supporting essential ecosystem services over time. However, our understanding contribution diverse biotic and abiotic factors to this in wetlands remains limited. Here, we combined data from a field vegetation survey 725 herbaceous wetland sites China with remote sensing information Enhanced Vegetation Index (EVI) 2010 2020 explore temporal primary productivity. We found that plant species richness directly contributed on national scale, but differed among climate zones, hydrological regimes, types. In addition, many factors, including soil properties, geographical location, also stability. Piecewise structural equation modeling identified pH, total nitrogen, organic carbon, emerged as modulating stability, both indirectly by affecting type. Higher carbon were related higher peatlands less so coastal inland marshes. These findings enhance ability forecast how may respond future environmental changes biodiversity loss can inform policy decisions

Language: Английский

Citations

1
Plants and soil biota co‐regulate stability of ecosystem multifunctionality under multiple environmental changes DOI
Huiling Zhang, Bing Wang, Ying Wu

et al.

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

Published: Feb. 1, 2025

The increase in phosphorus (P) and nitrogen (N) inputs, as well soil acidification resulting from multiple environmental changes, has profound effects on the attributes of plant biota communities, ecosystem functions. However, how these community impact multifunctionality (EMF) its stability under changes remains unclear. By integrating datasets over four consecutive years an experiment with enrichments N P a semiarid grassland Mongolian Plateau, we explored (species richness, asynchrony, compositional temporal stability) plants (bacteria, fungi, nematodes) their associations EMF stability. showed opposite responses to nutrient enrichment non-acidification conditions. Soil had more significant effect biota, components stability, than enrichment. decreased both mean EMF, while increased EMF. did not have but positive interactive We also found that richness asynchrony determined co-regulate changes. These findings highlight urgent need protect biodiversity maintain especially for ecosystems undergoing

Language: Английский

Citations

1