Effects of moisture and density-dependent interactions on tropical tree diversity
Effects of moisture and density-dependent interactions on tropical tree diversity
复制标题
水分和密度依赖性相互作用对热带树木多样性的影响
DOI:
10.1038/s41586-023-05717-1
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发表时间:
2023
期刊:
影响因子:
64.8
通讯作者:
Wright, S. Joseph
中科院分区:
文献类型:
--
作者:
Lebrija-Trejos, Edwin;Hernández, Andrés;Wright, S. Joseph
Tropical tree diversity increases with rainfall,. Direct physiological effects of moisture availability and indirect effects mediated by biotic interactions are hypothesized to contribute to this pantropical increase in diversity with rainfall, , , –. Previous studies have demonstrated direct physiological effects of variation in moisture availability on tree survival and diversity,, , –, but the indirect effects of variation in moisture availability on diversity mediated by biotic interactions have not been shown. Here we evaluate the relationships between interannual variation in moisture availability, the strength of density-dependent interactions, and seedling diversity in central Panama. Diversity increased with soil moisture over the first year of life across 20 annual cohorts. These first-year changes in diversity persisted for at least 15 years. Differential survival of moisture-sensitive species did not contribute to the observed changes in diversity. Rather, negative density-dependent interactions among conspecifics were stronger and increased diversity in wetter years. This suggests that moisture availability enhances diversity indirectly through moisture-sensitive, density-dependent conspecific interactions. Pathogens and phytophagous insects mediate interactions among seedlings in tropical forests, , , , , –, and many of these plant enemies are themselves moisture-sensitive, , , , , , , –. Changes in moisture availability caused by climate change and habitat degradation may alter these interactions and tropical tree diversity.
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影响因子:
3.4
作者:
Gripenberg, Sofia;Bagchi, Robert;Lewis, Owen T.
通讯作者:
Lewis, Owen T.
影响因子:
1.9
作者:
GENTRY, AH
通讯作者:
GENTRY, AH
影响因子:
8.8
作者:
Muller-Landau, HC;Condit, RS;Ashton, P
通讯作者:
Ashton, P
影响因子:
4.3
作者:
Barr, Dale J.;Levy, Roger;Scheepers, Christoph;Tily, Harry J.
通讯作者:
Tily, Harry J.
DOI:
--
发表时间:
2018
期刊:
影响因子:
--
作者:
Anita Weissflog;Lars Markesteijn;O. Lewis;L. Comita;Bettina M. J. Engelbrecht
通讯作者:
Bettina M. J. Engelbrecht