Priority effects determine how dispersal affects biodiversity in seasonal metacommunities DOI Creative Commons
Heng‐Xing Zou, Volker H. W. Rudolf

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2022, Volume and Issue: unknown

Published: Feb. 5, 2022

Abstract The arrival order of species frequently determines the outcome their interactions. This phenomenon, called priority effect, is ubiquitous in nature and local community structure, but we know surprisingly little about how it influences biodiversity across different spatial scales. Here, use a seasonal metacommunity model to show that patterns homogenizing effect high dispersal depend on specific mechanisms underlying effects. When effects are only driven by positive frequency dependence, dispersal-diversity relationships sensitive initial conditions generally hump-shaped relationship: declines when rates become allow dominant competitor exclude other patches. spatiotemporal variation phenological differences alters species’ interaction strengths (trait-dependent effects), local, regional, temporal diversity insensitive dispersal, regardless numeric advantage. Thus, trait-dependent can strongly reduce biodiversity, preventing homogenization metacommunities. Our results suggest an alternative mechanism maintains regional without environmental heterogeneity, highlighting accounting for fundamental understanding biodiversity.

Language: Английский

Warming‐induced changes in seasonal priority effects drive shifts in community composition DOI Creative Commons
Emma Dawson‐Glass,

Rory Schiafo,

Sara E. Kuebbing

et al.

Ecology, Journal Year: 2025, Volume and Issue: 106(1)

Published: Jan. 1, 2025

Shifting community assembly dynamics are an underappreciated mechanism by which warming will alter plant composition. Germination timing (which can determine the order in seedlings emerge within a community) likely shift unevenly across species response to warming. In seasonal environments where communities reassemble at beginning of each growing season, changes germination could lead priority effects, and ultimately We test this expectation assembling mesocosms 15 one two orders-"ambient" or "warmed" order-based on constituent germinated under ambient warmed conditions. Community composition differed significantly between assembled versus orders. The impact mean biomass was largely explained how much earlier (or later) arrived warmed-order treatment relative ambient-order treatment. Species whose phenology advanced more conditions showed greater increases These findings demonstrate that drive shape reordering among species. enhance our ability predict benefit from may decline based order, informing communities.

Language: Английский

Citations

2
Bridging theory and experiments of priority effects DOI Creative Commons
Heng‐Xing Zou, Volker H. W. Rudolf

Trends in Ecology & Evolution, Journal Year: 2023, Volume and Issue: 38(12), P. 1203 - 1216

Published: Aug. 24, 2023

Language: Английский

Citations

17
Time‐dependent interaction modification generated from plant–soil feedback DOI
Heng‐Xing Zou, Xinyi Yan, Volker H. W. Rudolf

et al.

Ecology Letters, Journal Year: 2024, Volume and Issue: 27(5)

Published: May 1, 2024

Abstract Pairwise interactions between species can be modified by other community members, leading to emergent dynamics contingent on composition. Despite the prevalence of such higher‐order interactions, little is known about how they are linked timing and order species' arrival. We generate population from a mechanistic plant–soil feedback model, then apply general theoretical framework show that modification pairwise interaction third plant depends its germination phenology. These time‐dependent modifications emerge concurrent changes in microbe populations strengthened higher overlap plants' associated microbiomes. The this specificity microbiomes further determines coexistence. Our widely applicable mechanisms systems which similar emerge, highlighting need integrate temporal shifts predict natural communities.

Language: Английский

Citations

4
Regional Processes Mediate Ecological Selection and the Distribution of Plant Diversity Across Scales DOI Creative Commons
Christopher P. Catano, Jonathan T. Bauer, Tyler Bassett

et al.

Ecology Letters, Journal Year: 2025, Volume and Issue: 28(3)

Published: March 1, 2025

Community ecology remains focused on interactions at small scales, which limits causal understanding of how regional and local processes interact to mediate biodiversity changes. We hypothesise that species pool size immigration are two altering the balance between niche selection drift cause variation in plant diversity. manipulated richness number seeds sown (species respectively) into 12 grasslands across a landscape soil moisture gradient. Greater smaller pools increased composition explained by gradients but resulted greater erosion α-diversity spatial β-diversity over time. Our results suggest constraints colonisation make community assembly more variable help maintain diversity limiting biotic homogenisation. This study provides large-scale experimental evidence contexts can alter relative importance fundamental shaping change scales.

Language: Английский

Citations

0
Dispersal–diversity feedbacks and their consequences for macroecological patterns DOI Creative Commons
Adriana Alzate, Oskar Hagen

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2024, Volume and Issue: 379(1907)

Published: June 24, 2024

Dispersal is a key process in ecology and evolution. While the effects of dispersal on diversity are broadly acknowledged, our understanding influence remains limited. This arises from dynamic, context-dependent, nonlinear ubiquitous nature dispersal. Diversity outcomes, such as competition, mutualism, parasitism trophic interactions can feed back dispersal, thereby influencing biodiversity patterns at several spatio-temporal scales. Here, we shed light dispersal–diversity causal links by discussing how ecological evolutionary feedbacks impact macroecological patterns. We highlight importance for advancing macro-eco-evolutionary their challenges, establishing unified framework terminology methodologies across various disciplines article part theme issue ‘Diversity-dependence dispersal: interspecific determine spatial dynamics’.

Language: Английский

Citations

2
Stage-mediated priority effects and season lengths shape long-term competition dynamics DOI
Heng‐Xing Zou, Sebastian J. Schreiber, Volker H. W. Rudolf

et al.

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2023, Volume and Issue: 290(2007)

Published: Sept. 27, 2023

The relative arrival time of species can affect their interactions and thus determine which persist in a community. Although this phenomenon, called priority effect, is widespread natural communities, it unclear how depends on the length growing season. Using seasonal stage-structured model, we show that differences stages interacting could generate effects by altering strength stabilizing equalizing coexistence mechanisms, changing outcomes between exclusion, positive frequency dependence. However, these are strongest systems with just one or few generations per season diminish where many overlapping dilute importance stage-specific interactions. Our model reveals novel link number consequences effects, suggesting phenological shifts driven climate change should depend specific life histories organisms.

Language: Английский

Citations

5
Microeukaryotic community dynamics and assembly mechanisms in shrimp aquaculture ponds DOI
Xiafei Zheng, Dongwei Hou, Zhijian Huang

et al.

Aquaculture, Journal Year: 2024, Volume and Issue: 590, P. 741091 - 741091

Published: May 18, 2024

Language: Английский

Citations

1
Germination phenology alters species coexistence outcomes DOI Open Access

Jeff Diez,

Jen Schlauch,

Elysa DuCharme

et al.

Journal of Ecology, Journal Year: 2024, Volume and Issue: 112(10), P. 2212 - 2222

Published: Aug. 27, 2024

Abstract Species‐specific phenological responses to changing climate are reshuffling the timing of species interactions, however we do not fully understand consequences these changes for species' population dynamics and community composition. In this study, experimentally manipulated germination five annual plant from southern California used pairwise competition experiments coexistence theory quantify how shifts may impact interactions coexistence. We found that help promote when they confer an advantage competitively inferior species, but in other cases dominance by superior species. Earlier generally increased performance relative competitors, intra‐and inter‐specific caused more complex effects on niche fitness differences. Phenological differences tended reduce stabilising many pairs reduced overall probabilities. Synthesis . While among have typically been considered a form partitioning, it seems increasingly likely offsets could destabilise The net phenology will depend combinations intra‐ which remain challenging predict.

Language: Английский

Citations

1
Bridging Theory and Experiments of Priority Effects DOI Creative Commons
Heng‐Xing Zou, Volker H. W. Rudolf

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2022, Volume and Issue: unknown

Published: Dec. 8, 2022

Abstract Priority effects play a key role in structuring natural communities, but considerable confusion remains about how they affect different ecological systems. Synthesizing previous studies, we show that this arises because the mechanisms driving priority and temporal scale at which operate differ among leading to divergent outcomes species interactions biodiversity patterns. We suggest grouping into two functional categories based on their mechanisms: “frequency-dependent” arise from positive frequency dependence, “trait-dependent” time-dependent changes interacting traits. Through easy quantification of these experiments, can construct community models representing diverse biological with effects, therefore better predicting consequences across ecosystems.

Language: Английский

Citations

6
Time-dependent Interaction Modification Generated from Plant-soil Feedback DOI Creative Commons
Heng‐Xing Zou, Xinyi Yan, Volker H. W. Rudolf

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: Nov. 5, 2023

Abstract Pairwise interactions between species can be modified by other community members, leading to emergent dynamics contingent on composition. Despite the prevalence of such higher-order interactions, little is known about how they are linked timing and order species’ arrival. We generate population from a mechanistic plant-soil feedback model, then apply general theoretical framework show that modification pairwise interaction third plant depends its germination phenology. These time-dependent modifications emerge concurrent changes in microbe populations strengthened higher overlap plants’ associated microbiomes. The this specificity microbiomes further determines coexistence. Our widely applicable mechanisms systems which similar emerge, highlighting need integrate temporal shifts predict natural communities.

Language: Английский

Citations

2