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Title: Hydrological variability and long-term floristic-structural modifications in different habitats of a tropical semi-deciduous forest
Keywords: Forest dynamics
Climate changes
Semideciduous seasonal forest
Temporal change
Functioning communities
Dinâmica da floresta
Mudanças climáticas
Floresta estacional semidecidual
Mudança temporal
Comunidades em funcionamento
Issue Date: 2021
Publisher: Springer
Citation: SANTOS, A. B. M. et al. Hydrological variability and long-term floristic-structural modifications in different habitats of a tropical semi-deciduous forest. Journal of Forestry Research, Colombo, 2021. DOI: 10.1007/s11676-021-01408-7.
Abstract: Shifts in hydrological regimes alter river flow rates and flood pulses, decrease environmental heterogeneity and the floristic-structural complexity of associated plant communities. We tested the hypothesis that drought events affect plant community composition and structure at a small-scale within a riparian fragment towards a reduction in floristic-structural complexity. The tree community was sampled in three habitats (wet, transitional and dry) and monitored in seven inventories carried out between 1991 and 2018. Hydrological variations were evaluated through annual rainfalls, river flow rates and water level data. The species richness and the detrended correspondence analysis axes were used to characterise the temporal modifications in floristic composition. Community structure was described in terms of biomass: accumulated, growth of survivors, mortality and recruitment. Generalised linear mixed models were fitted to evaluate the effects of time and environment in community. It was concluded that the climate has become drier in recent years due to declining precipitation that has affected flow rates and water levels. The floristic-structural complexity of the study fragment was maintained during the monitoring period. However, prolonged and extreme drought events displayed the potential to impact floristic-structural patterns.
Appears in Collections:DCF - Artigos publicados em periódicos

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