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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Current issues in tropical phenology: a synthesis

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Autor(es):
Abernethy, Katharine [1, 2] ; Bush, Emma R. [2] ; Forget, Pierre-Michel [3] ; Mendoza, Irene [4] ; Morellato, Leonor Patricia C. [4]
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] CENAREST, Inst Rech Ecol Trop, Libreville - Gabon
[2] Univ Stirling, Biol & Environm Sci, Stirling - Scotland
[3] MNHN, CNRS, UMR MECADEV 7179, Dept Adaptat Vivant, Brunoy - France
[4] Univ Estadual Paulista UNESP, Inst Biociencias, Dept Bot, Lab Fenol, Sao Paulo - Brazil
Número total de Afiliações: 4
Tipo de documento: Artigo Científico
Fonte: Biotropica; v. 50, n. 3, p. 477-482, MAY 2018.
Citações Web of Science: 4
Resumo

We retrace the development of tropical phenology research, compare temperate phenology study to that in the tropics and highlight the advances currently being made in this flourishing discipline. The synthesis draws attention to how fundamentally different tropical phenology data can be to temperate data. Tropical plants lack a phase of winter dormancy and may grow and reproduce continually. Seasonal patterns in environmental parameters, such as rainfall, irradiance or temperature, do not necessarily coincide temporally, as they do in temperate climes. We review recent research on the drivers of phenophase cycles in individual trees, species and communities and highlight how significant innovations in biometric tools and approaches are being driven by the need to deal with circular data, the complexity of defining tropical seasons and the myriad growth and reproductive strategies used by tropical plants. We discuss how important the use of leaf phenology (or remotely-sensed proxies of leaf phenophases) has become in tracking biome responses to climate change at the continental level and how important the phenophase of forests can be in determining local weather conditions. We also highlight how powerful analyses of plant responses are hampered at many tropical sites by a lack of contextual data on local environmental conditions. We conclude by arguing that there is a clear global benefit in increasing long term tropical phenology data collection and improving empirical collection of local climate measures, contemporary to the phenology data. Directing more resources to research in this sector will be widely beneficial. ResumeNous retracons le developpement de la recherche en phenologie tropicale et comparons l'etude de la phenologie des regions temperees a celle des regions tropicales en mettant en evidence les progres qui ont ete realises recemment dans cette discipline florissante. La synthese attire l'attention sur la facon dont les donnees de phenologie en region tropicale sont fondamentalement differentes de celles des regions temperees. Les plantes tropicales n'ont pas de phase de dormance hivernale et peuvent pousser et se reproduire de maniere continue. Les modeles saisonniers des parametres environnementaux, tels que les precipitations, l'ensoleillement ou la temperature, ne coincident pas necessairement dans le temps, comme c'est le cas sous des climats temperes. Nous passons en revue les recherches recentes sur les facteurs qui declenchent les cycles phenologiques pour les individus, les especes et les communautes d'arbres, et soulignons comment les innovations en outils et approches analytiques sont necessaires pour le traitement des donnees circulaires ainsi que pour definir des saisons tropicales complexes et la myriade des strategies de reproduction utilisees par les plantes tropicales. Nous discutons comment l'importance de l'utilisation de la phenologie de feuillaison (ou des indicateurs a distance des phases foliaires saisonnieres) s'est developpe pour suivre les reponses des biomes aux changements climatiques au niveau continental et l'importance des phases phenologiques des forets pour determiner les conditions meteorologiques locales. Nous soulignons egalement a quel point les analyses performantes sont entravees sur de nombreux sites tropicaux en raison d'un manque de donnees contextuelles sur les conditions environnementales locales. Nous concluons en affirmant qu'il existe un avantage global clair a augmenter la collecte de donnees phenologiques a long terme en milieu tropical comme a ameliorer la collecte empirique de mesures climatiques locales, contemporaines des donnees phenologiques. Diriger plus de ressources a la recherche dans ce secteur sera largement benefique. (AU)

Processo FAPESP: 13/50155-0 - Combining new technologies to monitor phenology from leaves to ecosystems
Beneficiário:Leonor Patricia Cerdeira Morellato
Linha de fomento: Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - PITE
Processo FAPESP: 12/21601-0 - Respostas fenológicas de plantas lenhosas às mudanças climáticas: uma análise comparativa nos Neotrópicos
Beneficiário:Irene Mendoza Sagrera
Linha de fomento: Bolsas no Brasil - Pós-Doutorado