Early survival of native woody regenerants after simplified bare-root rescue in the Brazilian semi-arid region
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Resumen
The rescue of native regenerants is increasingly required in areas subjected to vegetation suppression, yet its implementation is often constrained by the costs and logistical demands of conventional protocols. Here, we assessed the effectiveness of a simplified bare-root rescue procedure applied to native woody species of the Brazilian Caatinga under real operational conditions. A total of 122 individuals of Amburana cearensis, Anadenanthera colubrina, Luetzelburgia auriculata, and Pseudobombax marginatum were rescued during the rainy season. After uprooting, regenerants were kept under shade for approximately 24 h and subsequently transplanted into nursery bags containing subsoil. Survival, height, and stem collar diameter were assessed 78 days after transplanting. Overall survival reached 87.7%, ranging from 76.7% in A. colubrina to 100% in A. cearensis. Penalized binomial regression revealed a significant negative effect of stem collar diameter on survival, whereas plant height was not associated with mortality. The high survival rates observed indicate that simplified bare-root rescue can be successfully applied under real operational conditions in the Caatinga when performed during the rainy season and combined with measures that minimize dehydration. These findings provide practical guidance for flora rescue programs and ecological restoration initiatives in seasonally dry tropical forests.
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Esta obra está bajo una licencia internacional Creative Commons Atribución-NoComercial 4.0.
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