Author:
Palomo-Kumul Jorge,Valdez-Hernández Mirna,Islebe Gerald A.,Cach-Pérez Manuel J.,Andrade José Luis
Abstract
AbstractWe evaluated the effect of ENSO 2015/16 on the water relations of eight tree species in seasonally dry tropical forests of the Yucatan Peninsula, Mexico. The functional traits: wood density, relative water content in wood, xylem water potential and specific leaf area were recorded during the rainy season and compared in three consecutive years: 2015 (pre-ENSO conditions), 2016 (ENSO conditions) and 2017 (post-ENSO conditions). We analyzed tree size on the capacity to respond to water deficit, considering young and mature trees, and if this response is distinctive in species with different leaf patterns in seasonally dry tropical forests distributed along a precipitation gradient (700–1200 mm year−1). These traits showed a strong decrease in all species in response to water stress in 2016, mainly in the driest site. Deciduous species had lower wood density, higher predawn water potential and higher specific leaf area than evergreen species. In all cases, mature trees were more tolerant to drought. In the driest site, there was a significant reduction in water status, regardless of their leaf phenology, indicating that seasonally dry tropical forests are highly vulnerable to ENSO. Vulnerability of deciduous species is intensified in the driest areas and in the youngest trees.
Funder
Consejo Nacional de Ciencia y Tecnología
Publisher
Springer Science and Business Media LLC
Reference70 articles.
1. Murphy, P. G. & Lugo, A. E. Ecology of tropical dry forest. Ann. Rev. Ecol. Syst. 17, 67–88. https://doi.org/10.1146/annurev.es.17.110186.000435 (1986).
2. Hasselquist, N. J., Allen, M. F. & Santiago, L. S. Water relations of evergreen and drought-deciduous trees along a seasonally dry tropical forest chronosequence. Oecologia 164, 881–890. https://doi.org/10.1007/s00442-010-1725-y (2010).
3. Maass, M. et al. Long-term (33 years) rainfall and runoff dynamics in a tropical dry forest ecosystem in western Mexico: Management implications under extreme hydrometeorological events. For. Ecol. Manage. 426, 7–17. https://doi.org/10.1016/j.foreco.2017.09.040 (2018).
4. NOAA. National Weather Service. Climate Prediction Center. Cold and warm episodes by season. http://www.cpc.noaa.gov/products/analysis_monitoring/ensostuff/ensoyears.shtml. (Accessed 19 October 2019).
5. Detto, M., Wright, J., Calderón, O. & Muller-Landau, H. C. Resource acquisition and reproductive strategies of tropical forest in response to the El Niño-Southern Oscillation. Nat. Commun. 9, 9–13. https://doi.org/10.1038/s41467-018-03306-9 (2018).
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