Staggemeier, Vanessa GrazieleSantos, Rafael Rocha dos2025-01-212025-01-212025-01-14SANTOS, Rafael Rocha dos. Fenologia comparativa entre os estratos arbustivo e arbóreo da Floresta Nacional de Nísia Floresta (RN). Orientadora: Vanessa Graziele Staggemeier. 2025. 56 f. Monografia (Graduação em Ecologia) – Universidade Federal do Rio Grande do Norte, Natal, 2025.https://repositorio.ufrn.br/handle/123456789/61499Phenology allows the investigation of ecological dynamics essential for biodiversity conservation, particularly species' responses to seasonal variations. However, most plant phenological studies focus on a single life form, often overlooking the interactions present within ecosystems. This issue is even more critical in tropical regions, where biodiversity-rich forests lack studies that investigate interactions in highly heterogeneous environments. For this reason, our study monitored the reproductive phenology of trees and shrubs every two weeks over a 12-month period in the Nísia Floresta National Forest (RN), Brazil. The flowering and fruiting patterns exhibited different behaviors for each life form. We observed a synchrony in flowering, which was first manifested in trees, with a peak occurring in November 2022. In shrubs, flowering was more delayed, with two distinct peaks: the first in December 2022 and the second at the end of January 2023. Fruiting occurred year-round. Trees showed two peaks of immature fruit, in March and May 2023, while shrubs had activity peaks from February to mid-June 2023. Mature fruit reached its peak in December 2022 for trees and in July 2023 for shrubs. Day length was the abiotic variable most correlated with the highest number of phenophases, positively affecting bud and flower production. Average temperature was significantly positively correlated with fruiting in trees but negatively correlated with the mature fruit phenophase in shrubs. Precipitation was the least correlated abiotic variable with phenophases, showing a negative correlation with bud production in trees and a positive correlation with immature fruit production in shrubs. The significant correlations between climatic variables and the phenophases of each life form suggest that abiotic factors distinctly affect flower and fruit production in the strata. The asynchrony of phenophases between life forms contributes to resource availability throughout the year, which is essential for maintaining the ecological community.Attribution-ShareAlike 3.0 Brazilhttp://creativecommons.org/licenses/by-sa/3.0/br/Florestas tropicaisFormas de vidaPadrões fenológicosRecursosSazonalidade climáticaTropical forestsLife formsPhenological patternsResourcesClimatic seasonalitybachelorThesis