Species- and community-level demographic responses of saplings to drought during tropical secondary succession DOI Creative Commons
Hao Ran Lai,

Alexander Cheeseman,

Jefferson S. Hall

и другие.

Опубликована: Май 31, 2024

Naturally regenerating secondary vegetation dominates the tropical forest landscapes, showing a remarkable capacity to sequester carbon, but such role is threatened by increasing drought predicted with climate change. To understand how species and communities respond drought, we leverage long-term chronosequence of successional forests from Central Panama that coincided 2015/16 El Niño extreme event analyse diameter growth mortality 113,505 saplings 60 under water stress. As expected, negatively impacted most in either growth, mortality, or both. However, additionally found neighbourhood basal area ameliorated exacerbated effect on some species. These species-level demographic responses aggregated community-level shift dominance drought-susceptible more drought-tolerant during stand development. Our study highlights sapling older were less sensitive drought: they suffered reduction possibly due denser canopies mitigated evapotranspiration, also experienced lower higher relative abundance drought-resistant Saplings young overall susceptible their highly variable, suggesting potential understanding why are drought-tolerant, knowledge can be leveraged restore resilient necessary withstand future increased frequency severity changing climate.

Язык: Английский

Detecting non-additive biotic interactions and assessing their biological relevance among temperate rainforest trees DOI
Hao Ran Lai, Peter J. Bellingham, James K. McCarthy

и другие.

The American Naturalist, Год журнала: 2024, Номер 204(2), С. 105 - 120

Опубликована: Апрель 9, 2024

AbstractInteractions between and within abiotic biotic processes generate nonadditive density-dependent effects on species performance that can vary in strength or direction across environments. If ignored, nonadditivities lead to inaccurate predictions of responses environmental compositional changes. While there are increasing empirical efforts test the constancy pairwise interactions along gradients, few assess both simultaneously. Using a nationwide forest inventory spans broad ambient temperature moisture gradients throughout New Zealand, we address this gap by analyzing diameter growth six focal tree as function neighbor densities climate, well × climate statistical interactions. The most complex model featuring all interaction terms had highest predictive accuracy. Compared with variables, typically stronger growth, especially when subjected from local climatic conditions density intermediary species. Furthermore, statistically strong (or weak) could be biologically irrelevant significant) depending whether pair interacted under average more extreme conditions. Our study highlights importance considering potential biological relevance assessing global change.

Язык: Английский

Процитировано

4
A Continuum From Positive to Negative Interactions Drives Plant Species' Performance in a Diverse Community DOI Creative Commons
Lisa Buche, Lauren G. Shoemaker, Lauren M. Hallett

и другие.

Ecology Letters, Год журнала: 2025, Номер 28(1)

Опубликована: Янв. 1, 2025

ABSTRACT With many species interacting in nature, determining which interactions describe community dynamics is nontrivial. By applying a computational modeling approach to an extensive field survey, we assessed the importance of from plants (both inter‐ and intra‐specific), pollinators insect herbivores on plant performance (i.e., viable seed production). We compared inclusion interaction effects as aggregate guild‐level terms versus specific taxonomic groups. found that continuum positive negative interactions, containing mostly few strong taxonomic‐specific effects, was sufficient performance. While with intraspecific varied weakly positive, heterospecific mainly promoted competition facilitated plants. The consistency these empirical findings over 3 years suggests including groups rather than all pairwise high‐order can be for accurately describing variation across natural communities.

Язык: Английский

Процитировано

0
The influence of beneficial fungi on plant–enemy interactions and plant community structure DOI
Bénédicte Bachelot, Sunshine A. Van Bael, Robert Bagchi

и другие.

Journal of Ecology, Год журнала: 2025, Номер 113(6), С. 1320 - 1326

Опубликована: Июнь 1, 2025

Abstract As plant communities respond to global change, there is an urgent need understand the role of biotic interactions in shaping communities' dynamics. Plants simultaneously interact with antagonists and mutualists, understanding community responses change requires embracing complexity interactions. This cross‐journal Special Feature compiled nine research articles two mini‐reviews, each investigating multitrophic interactions, such as plant–insect–mycorrhizae, leaf–mycobiome or seed–mycobiome. We organized these papers around five main themes which highlight their context dependency, impacts on use plant–soil feedback experiments consequences for communities. Synthesis . The this highlighted important directions that would help beneficial fungi moderating plant–enemy structure. In particular, we recommend more experimental studies manipulating geographically replicated dependency climate complex

Язык: Английский

Процитировано

0
Species- and community-level demographic responses of saplings to drought during tropical secondary succession DOI Creative Commons
Hao Ran Lai,

Alexander Cheeseman,

Jefferson S. Hall

и другие.

Опубликована: Май 31, 2024

Naturally regenerating secondary vegetation dominates the tropical forest landscapes, showing a remarkable capacity to sequester carbon, but such role is threatened by increasing drought predicted with climate change. To understand how species and communities respond drought, we leverage long-term chronosequence of successional forests from Central Panama that coincided 2015/16 El Niño extreme event analyse diameter growth mortality 113,505 saplings 60 under water stress. As expected, negatively impacted most in either growth, mortality, or both. However, additionally found neighbourhood basal area ameliorated exacerbated effect on some species. These species-level demographic responses aggregated community-level shift dominance drought-susceptible more drought-tolerant during stand development. Our study highlights sapling older were less sensitive drought: they suffered reduction possibly due denser canopies mitigated evapotranspiration, also experienced lower higher relative abundance drought-resistant Saplings young overall susceptible their highly variable, suggesting potential understanding why are drought-tolerant, knowledge can be leveraged restore resilient necessary withstand future increased frequency severity changing climate.

Язык: Английский

Процитировано

0