Cholini (Coleoptera: Curculionidae: Molytinae) housed in the Invertebrate Collection of the Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil

Barbosa, Márcio Luís Leitão; Ferreira, Isabela Andrade; Fonseca, Cláudio Ruy Vasconcelos da; Gouveia, Fernando Bernardo Pinto

doi:10.1590/s0044-59672011000300010

Cited by 4 publications

(3 citation statements)

References 2 publications

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“…Soils occupying the lower-lying areas are poorly drained with a dominance of typical hydromorphic sandy soils (Nortcliff and Robison 1998). Regional climate is characterised as a transition between Aw/Am climate subtypes by the Köppen classification (Barbosa 1997). Average annual rainfall is ~ 1900 mm (1986-2010), with a rainy season between April and September (140-420 mm month -1 ) and a dry season between October and March (40-130 mm month -1 ) (Couto-Santos et al 2014).…”

Section: Project Descriptionmentioning

confidence: 99%

Floristic composition in ecotone forests in northern Brazilian Amazonia: preliminary data

Silva¹,

Villacorta²,

Perdiz³

et al. 2019

BDJ

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BackgroundEcotone has been defined as “a multi-dimensional environmentally stochastic interaction zone between ecological systems with characteristics defined in space and time, and by the strength of the interaction” (Hufkens et al. 2009). This is a known concept to define transitional zones between two or more ecological communities, ecosystems or biotic regions. Ecotone forests, dispersed in northern Brazilian Amazonia, are natural formations which have been largely affected by anthropogenic impacts, such as deforestation and fire. Maracá Ecological Station, State of Roraima, Brazil, is a protected area with extensive representations of ecotone forests in this region of the Amazonia. Forest inventories and floristic surveys are important as they extend our knowledge (1) of forest structure and tree species composition and (2) of tree and palm species ecology in this region of the Amazonia. Both improve our ability to predict changes in plant diversity, considering the future scenarios of climate change in comparison with previous surveys performed in Maracá.New informationWe present a forest inventory carried out in 129 plots (10 m x 50 m; 6.45 ha in total) dispersed in a grid (5 km x 5 km) located in a forest zone ecotone in the eastern part of Maracá Ecological Station. All stems (tree + palm) with diameter at breast height ≥ 10 cm were recorded, identified and measured. A total of 3040 stems were recorded (tree = 2815; palm = 225), corresponding to 42 botanic families and 140 identified species. Seven families and 20 genera contained unidentified taxa (12.2%). Sapotaceae (735 stems; 10 species), Leguminosae (409; 24) and Rubiaceae (289; 12) were the most abundant families. Peltogyne gracilipes Ducke (Leguminosae), Pradosia surinamensis (Eyma) T.D.Penn. (Sapotaceae) and Ecclinusa guianensis Eyma (Sapotaceae) were the species with the highest importance value index (~ 25%). The dominance (m2 ha-1) of these species corresponds to > 36% of the total value observed in the forest inventory. Our dataset provides complementary floristic and structure information on tree and palm in Maracá, improving our knowledge of this Amazonian ecotone forest.

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Section: Project Descriptionmentioning

confidence: 99%

Floristic composition in ecotone forests in northern Brazilian Amazonia: preliminary data

Silva¹,

Villacorta²,

Perdiz³

et al. 2019

BDJ

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“…A vegetação local é caracterizada por floresta ombrófila aberta e o solo é classificado como Latossolo Vermelho Amarelo. Na região predomina o clima do tipo Aw (Köppen), com período seco de 4 meses por ano, precipitação média anual de 1800 mm e temperatura média de 28 °C (Barbosa, 1997;Mourão et al, 2003).…”

Section: Materiais E Métodosunclassified

Desenvolvimento vegetativo e índices de clorofila de clones-copa de Bertholletia excelsa Bonpl., em Roraima

Santos,

Pedrozo,

Batista

et al. 2023

RBCA

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The objective of this work was to determine the vegetative development and chlorophyll indices of six Amazon nut tree canopy clones, in different periods after grafting by bubbling in plaque, in Mucajaí -RR. The design used was randomized blocks, with four replications, with the treatments arranged in a split-plot scheme in time, with 6 canopy-clones in the plots and 4 evaluation periods (19; 25; 31 and 37 months after grafting) in the subplots. Plants were evaluated for halfyearly average increments in height and stem diameter. Chlorophyll indices and nitrogen content in the leaves were also obtained. The data were subjected to analysis of variance and the means of treatments compared by Tukey's test. Pearson's correlation between variables was also obtained. There were no significant differences in the development of canopy clones in any of the evaluated periods. The increments in height and diameter, as well as chlorophyll indices and nitrogen content in the leaves, were higher at 37 months after grafting, which coincides with one of the evaluated dry seasons. The positive correlation between growth variables and nitrogen content and chlorophyll indices explain the good development of the trees.

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“…Both modules are within the climatic type Aw, according to the Köppen classification, and present approximately the same average annual rainfall as that of the city of Boa Vista (~1,650 mm), with dry period defined between December to March, and the peak of the rainy season between May to August ( Barbosa 1997 ).…”

Section: Project Descriptionmentioning

confidence: 99%

Hydro-edaphic conditions defining richness and species composition in savanna areas of the northern Brazilian Amazonia

Araújo

Rocha

Miranda

et al. 2017

BDJ

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BackgroundStudies on plant communities in the Amazon have reported that different hydro-edaphic conditions can affect the richness and the species composition of different ecosystems. However, this aspect is poorly known in the different savanna habitats. Understanding how populations and plant communities are distributed in these open vegetation areas is important to improve the knowledge about which environmental variables influence the occurrence and diversity of plants in this type of regional ecosystem. Thus, this study investigated the richness and composition of plant species in two savanna areas of the northern Brazilian Amazonia, using the coverage (%) of the different life forms observed under different hydro-edaphic conditions as a structural reference.New informationWe report 128 plant species classified in 34 botanical families distributed in three savanna habitats with different levels of hydro-edaphic restrictions. In this study, the habitats are conceptually presented and they integrate environmental information (edaphic factors and drainage type), which determines differences between floristic composition, species richness and coverage (%) of plant life forms.

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Cholini (Coleoptera: Curculionidae: Molytinae) housed in the Invertebrate Collection of the Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil

Cited by 4 publications

References 2 publications

Floristic composition in ecotone forests in northern Brazilian Amazonia: preliminary data

Floristic composition in ecotone forests in northern Brazilian Amazonia: preliminary data

Desenvolvimento vegetativo e índices de clorofila de clones-copa de Bertholletia excelsa Bonpl., em Roraima

Hydro-edaphic conditions defining richness and species composition in savanna areas of the northern Brazilian Amazonia

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