Leafing patterns and drivers across seasonally dry tropical communities.

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dc.contributorBruna Alberton, UNESP - Rio Claro, SP; Ricardo da Silva Torres, UNICAMP; Thiago Sanna Freire Silva, University of Stirling, FK9 4LA Stirling, UK; Humberto R. da Rocha, USP - São Paulo, SP; MAGNA SOELMA BESERRA DE MOURA, CPATSA; Leonor Patricia Cerdeira Morellato, UNESP - Rio Claro, SP.
dc.creatorALBERTON, B.
dc.creatorTORRES, R. da S.
dc.creatorSILVA, T. S. F.
dc.creatorROCHA, H. R. da
dc.creatorMOURA, M. S. B. de
dc.creatorMORELLATO, L. P. C.
dc.date2019-10-31T18:15:42Z
dc.date2019-10-31T18:15:42Z
dc.date2019-10-31
dc.date2019
dc.date2019-10-31T18:15:42Z
dc.date.accessioned2026-07-07T05:55:01Z
dc.descriptionInvestigating the timing of key phenological events across environments with variable seasonality is crucial to understand the drivers of ecosystem dynamics. Leaf production in the tropics is mainly constrained by water and light availability. Identifying the factors regulating leaf phenology patterns allows eciently forecasting of climate change impacts. We conducted a novel phenological monitoring study across four Neotropical vegetation sites using leaf phenology time series obtained from digital repeated photographs (phenocameras). Seasonality diered among sites, from very seasonally dry climate in the caatinga dry scrubland with an eight-month long dry season to the less restrictive Cerrado vegetation with a six-month dry season. To unravel the main drivers of leaf phenology and understand how they influence seasonal dynamics (represented by the green color channel (Gcc) vegetation index), we applied Generalized Additive Mixed Models (GAMMs) to estimate the growing seasons, using water deficit and day length as covariates. Our results indicated that plant-water relationships are more important in the caatinga, while light (measured as day-length) was more relevant in explaining leafing patterns in Cerrado communities. Leafing behaviors and predictor-response relationships (distinct smooth functions) were more variable at the less seasonal Cerrado sites, suggesting that different life-forms (grasses, herbs, shrubs, and trees) are capable of overcoming drought through specific phenological strategies and associated functional traits, such as deep root systems in trees.
dc.identifierRemote Sensing, v. 11, 2267, 2019.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1113701
dc.identifier10.3390/rs11192267
dc.identifier.urihttp://hdl.handle.net/123456789/502534
dc.languageeng
dc.rightsopenAccess
dc.subjectFenologia vegetativa
dc.subjectSazonalidade
dc.subjectFatores climáticos
dc.subjectSéries temporais
dc.subjectFenologia remota perto da superfície
dc.subjectVegetação
dc.subjectClima
dc.subjectMudança Climática
dc.subjectClimatic zones
dc.titleLeafing patterns and drivers across seasonally dry tropical communities.
dc.typeArtigo de periódico

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