Síndromes de Dispersão de Propágulos e a Influência da Floresta Amazônica na Composição de Espécies Lenhosas de Uma Restinga no Litoral Norte Brasileiro

Amaral, Dário Dantas do; Jardim, Mário Augusto Gonçalves; Costa-Neto, Salustiano Vilar da; Bastos, Maria de Nazaré do Carmo

doi:10.18561/2179-5746/biotaamazonia.v5n3p28-37

Cited by 13 publications

(13 citation statements)

References 38 publications

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“…As for fruits dispersion, more than 80% of the species in this study presented zoochoric syndrome. In Brazilian coastal areas, the proportion of zoochoric species are very similar to those observed in this study, always above 80% (Moraes and Mondin 2001;Almeida Jr. et al 2008;Amaral et al 2015), corroborating the assertion that most tropical species are animal-dispersed (Morellato and Leitão-Filho 1992;Talora and Morellato 2000).…”

Section: Discussionsupporting

confidence: 89%

Woody plants phenology of the coastal dunes in eastern Amazon, Brazil

et al. 2021

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Phenological studies are fundamental for understanding the structure and dynamics of the plant community and assist in understanding the influence of climate on vegetation and for the analysis of plant-animal interactions. In this work, we present the phenology of 19 woody species of coastal dunes located in the eastern end of the Amazon coast. We evaluate the phenological aspects of the community and their relationship with climatic factors (photoperiod, precipitation, and temperature). For this evaluation, 19 woody species with a diameter at soil height (DBH) > 3 cm and whole crown visible were selected. Information on leaf abscission, new leaves, flowering, and fruiting was collected fortnightly. The activity and intensity of each phenophase were estimated according to the Fournier index. Circular statistic was employed to determine the mean dates for the start and peak of the phenophases, and the percentage of activity and intensity for each phenophase. Multiple linear regression analysis was applied to investigate the relationships between phenophases and climatic variables. Additionally, leaf habits and pollination and dispersion syndromes were defined for each species. The results reveal that the species evaluated did not show seasonally defined behavior, nor were they related to the climatic factors evaluated. Most species showed evergreen leaf habit (83.4%), melittophilly as the primary pollination syndrome (78.9%), and zoochoric dispersal (84.22%). Although it does not present a seasonally defined behavior, nor is it related to the climatic factors evaluated, the dry season presented the highest percentages for all phenophases, which may indicate that other factors associated with the dry period may influence the trigger off the phenophases. The information collected expands the knowledge about the functioning of this ecosystem and reinforces the need for more ecological studies and reduced impact management measures, aiming at coastal vegetation conservation.

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Section: Discussionsupporting

confidence: 89%

Woody plants phenology of the coastal dunes in eastern Amazon, Brazil

et al. 2021

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“…The occurrence of the same species in different areas of restinga along coastal Brazil might indicate that, to a greater or lesser degree, the vegetation of this environment plays a role as an ecological corridor among different phytogeographic domains. Amaral et al (2015) noted the coexistence of species with different origins in an area of restinga in Pará. Most of the arboreal elements in this area originate from Amazonian vegetation formations and the shrubs, to an extent, are widely distributed species in Brazil.…”

Section: Discussionmentioning

confidence: 99%

Checklist of Angiosperms in the Restingas of Pará state, Brazil, with comments on floristic affinities and phytophysiognomies

Silva

Amaral

et al. 2021

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Pará state has one of the longest coastal in Brazil. However, floristic surveys have been conducted in few regions and only one study has comprehensively evaluated the coastal flora of the state. The objective of this study was to create an updated and certified checklist of the angiosperms in the restingas of Pará. The list was made using literature, floristic and taxonomic revisions, herbaria specimens from HBRA, IAN, MFS and MG, and collections made between 2014 and 2018. Overall, 470 species, 279 genera and 92 families were recorded. Of this total, 11 species are new records for coastal Pará. The families with the greatest number of species are Fabaceae, Cyperaceae, Poaceae, Myrtaceae, Rubiaceae, Asteraceae, Apocynaceae, Polygalaceae, Convolvulaceae and Melastomataceae, which correspond to 52% of the species. Cyperus, Eugenia, Rhynchospora, Eleocharis and Ipomoea are the most representative genera. For life forms, herbs and shrubs are predominant. Dune fields, restinga forest and herbaceous swamp are the phytophysiognomies with the greatest number of species. A comparison with restingas of northeastern Brazil showed that the flora surveyed is most similar to that of Maranhão, since many species of the Amazonian flora also occur in restingas in this state.

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“…Além destas três espécies, comuns aos dois estudos, há ainda o compartilhamento para grande parte dos gêneros botânicos registrados, como Byrsonima, Clusia, Eugenia, Maytenus, Myrcia, Ocotea e Ternstroemia (Carrasco et al, 2007). Este compartilhamento entre trechos litorâneos tão distintos geograficamente está relacionado, parcialmente, à distribuição ampla de grande parte da flora das restingas (Menezes et al, 2010;Amaral et al, 2015).…”

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Seleção de espécies lenhosas destinadas à restauração florestal de áreas degradadas de restinga no litoral amazônico

et al. 2020

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O presente estudo objetivou selecionar espécies lenhosas de restinga com potencial de utilização para a recuperação de áreas degradadas no litoral amazônico, com base na informação fitossociológica do Índice de Valor de Cobertura (IVC) das espécies, buscando classificá-las quanto ao grupo de plantio a que pertencem, de acordo com atributos ecológicos qualitativos. Foram registradas 85 espécies e 35 famílias botânicas, das quais dez espécies consideradas estruturantes foram selecionadas, sendo, portanto, indicadas como prioritárias na restauração florestal de restinga, no litoral da Amazônia. As espécies selecionadas compreendem um grupo de distribuição geográfica ampla no Brasil, sendo, no entanto, heterogêneo quanto às características que as definem em grupos ecológicos funcionais. Ocupam tanto o estrato inferior (Myrcia splendens (Sw.) DC.) quanto o superior (Astrocaryum vulgare Mart.); algumas perfilham (Anacardium occidentale L.) e outras não (Copaifera martii Hayne). Podem ser pioneiras (Pagamea guianensis Aubl.), secundárias inicial (Tapirira guianensis Aubl.) ou tardias (Pouteria ramiflora (Mart.) Radlk.).

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Síndromes de Dispersão de Propágulos e a Influência da Floresta Amazônica na Composição de Espécies Lenhosas de Uma Restinga no Litoral Norte Brasileiro

Cited by 13 publications

References 38 publications

Woody plants phenology of the coastal dunes in eastern Amazon, Brazil

Woody plants phenology of the coastal dunes in eastern Amazon, Brazil

Checklist of Angiosperms in the Restingas of Pará state, Brazil, with comments on floristic affinities and phytophysiognomies

Seleção de espécies lenhosas destinadas à restauração florestal de áreas degradadas de restinga no litoral amazônico

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