ResumoPsychotria nuda é uma árvore nativa do Brasil, ocorrente na Floresta Ombrófila Densa, que possui floração e frutificação maciças, atraindo muitos polinizadores e dispersores. Este estudo objetivou conhecer as fenofases de P. nuda e seus polinizadores, relacionando-os com os fatores ambientais em escala temporal, com ênfase à floração, assim como com a diversidade de polinizadores e sua fenologia. A área de estudo compreende um remanescente de floresta localizado em Santa Catarina, sul do Brasil. As observações fenológicas e de polinização foram realizadas quinzenalmente, no período de julho/2016 a julho/2017. Os resultados indicaram que o pico de folhas senescentes, brotação, floração e de frutos maduros coincidiu com os meses mais quentes e chuvosos do ano. Frutos imaturos persistiram quase o ano inteiro. Houve baixa sincronia de atividade fenológica na população. Foram registradas 13 espécies de polinizadores, sendo oito novas interações para P. nuda. A síndrome entomófila foi preponderante, mas as espécies polinizadoras não possuem o mesmo padrão temporal de visitação. Conclui-se que P. nuda possui polinização compartilhada, predominantemente entomófila, variação de atividade fenológica intrapopulacional e se constitui como um importante recurso para a ornitofauna e entomofauna na Floresta Atlântica, uma vez que seus polinizadores usam seus recursos de maneira não uniforme.Palavras-chave: atividade fenológica, entomofilia, floresta ombrófila densa, interação animal-planta. AbstractPsychotria nuda is a tree native to Brazil, occurring in the Dense Ombrophylous Forest, which has massive flowering and fruiting, attracting many pollinators and dispersers. This study aimed to know the phenophases of P. nuda and its pollinators, relating them to environmental factors on a temporal scale, with emphasis on flowering, as well as the diversity of pollinators and their phenology. The study area comprises a remnant of forest located in Santa Catarina, southern Brazil. Phenological and pollination observations were performed fortnightly, from July/2016 to July/2017. The results indicated that the peak of senescent leaves, budding, flowering and mature fruits coincided with the hottest and rainy months of the year. Immature fruits persisted almost year-round. There was a low synchrony of phenological activity in the population. Thirteen species of pollinators were recorded, with eight new interactions for P. nuda. The entomophilic syndrome was preponderant, but the pollinator species do not have the same temporal pattern of visitation. It is concluded that P. nuda has shared pollination, predominantly entomophilic, variation of intrapopulational phenological activity and constitutes an important resource for the ornitofauna and entomofauna in the Atlantic Forest since its pollinators use their resources in a non-uniform way.This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0), which permits reproduction, adaptation, and distribution provided the o...
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.