Flora das cangas da serra dos Carajás, Pará, Brasil: Leguminosae

Mattos, Cilene Mara Jordão de; Silva, Wanderson Luis da Silva e; Carvalho, Catarina Silva de; Lima, Andressa Novaes; Faria, Sérgio Miana de; Lima, Haroldo Cavalcante de

doi:10.1590/2175-7860201869323

Cited by 18 publications

(18 citation statements)

References 29 publications

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“…These taxa present entomophily pollination (Gosling et al, 2009;Gressler et al, 2006;Silva, 2016;Zappi et al, 2018). Among these four taxa, three are hermaphrodites (Deguelia, M. sylvatica and X. aromatica), and M. guianensis is monoicous (Barbosa et al, 2018;Lobão, 2016;Mattos et al, 2018;Trindade et al, 2018). This observation is consistent with the pollen representation hierarchy of dioecious > monoicous > hermaphrodite (Bush and Rivera, 2001).…”

Section: Relationship Between the Composition Of Modern Pollen Rain Asupporting

confidence: 81%

Hydroclimate influences on modern pollen rain of upland southeastern Amazonia

et al. 2020

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For accurate interpretations of palaeopalynological data, it is important to understand the influence of the current vegetation composition and characteristics on the formation of the palynological assemblage recorded in artificial or natural pollen traps. Therefore, in this study, modern pollen rain was characterized using artificial pollen traps under different ecological conditions and climatic seasons in Trilha da Mata Lake, Carajás North Ridge, southeastern Amazonia. The collection of pollen rain data comprises the total period from September 2015 to August 2016. There were two periods of low rainfall (September to December 2015 and May to August 2016) and one period of high rainfall (January to April 2016). The first two periods were represented by a predominance of canga vegetation pollen relative to forest pollen. Under dry conditions, the associations among the taxa Aparisthmium/Alchornea, Myrcia and Bellucia dichotoma were considered important for forest ecosystems, while those among Pleroma, Hyptis parkeri, Borreria and Perama carajensis were considered important for canga ecosystems. Under wet conditions, the forests were well represented by Schefflera, Anthurium lindmanianum, Pseudopiptadenia suaveolens and Glycydendron, and the most represented canga vegetation in the pollen rain were Poaceae undif., Miconia, M. acutistipula var. ferrea and Psychotria. Aparisthmium/Alchornea and Poaceae undif. Aparisthmium/Alchornea was related to periods of low water availability, and Poaceae undif. was associated with marshy or flooded environments. Thus, an increase in the influx of Poaceae undif. pollen grains was determined by variations in the extension of flooded areas, indicating an increase in the amount of rainfall and not the opposite case. Thus, future studies on vegetation reconstruction must consider modern pollen assemblages to precisely determine paleoenvironmental and paleoclimate conditions during sediment deposition.

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Section: Relationship Between the Composition Of Modern Pollen Rain Asupporting

confidence: 81%

Hydroclimate influences on modern pollen rain of upland southeastern Amazonia

et al. 2020

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“…Considered a native and abundant species, Mimosa acutistipula var. ferrea Barneby is endemic to north and northeastern Brazil and abundant in the Serra dos Carajás region, occurring on all CRC outcrops studied (Mattos et al 2018). It features in the Brazilian red list of plants as Data Deficient (DD) (Martinelli & Moraes 2013) and vulnerable (VU) in the List of Threatened Species of Pará State (COEMA-PA 2010).…”

Section: Discussionmentioning

confidence: 99%

Foraging preferences of the native stingless bee Melipona seminigra pernigra (Apidae: Meliponini) in campo rupestre on canga of Serra dos Carajás, southeastern Amazonia

et al. 2021

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Honey pollen samples of Melipona seminigra pernigraMoure & Kerr 1950 sampled between 2017 and 2019 from experimental apiaries installed in campo rupestre on canga (CRC) vegetation of the Serra dos Carajás aimed to evaluated seasonal floral availability of undisturbed and mining-influenced areas. Around one hundred pollen types were identified mainly belonging to Fabaceae, Myrtaceae and Euphorbiaceae (31, 6 and 5 species, respectively). Mining area presented the highest pollen richness, almost twice those identified in the undisturbed areas. 80% of the pollen types are rare with concentrations ≤ 2,000 pollen grains/10 g, while the remaining were the most abundant, frequent and the primary bee sources. These latter correspond mostly to native plants species such as Tapirira guianensis Aubl., Protium spp., Aparisthmium cordatum (A.Juss.) Baill., Mimosa acutistipula var. ferrea Barneby, Periandra mediterranea (Vell.) Taub., Miconia spp., Pleroma carajasense K.Rocha, Myrcia splendens (Sw.) DC., Serjania spp. and Solanum crinitum Lam. All pollen types were identified during both seasons, but higher concentration values are related to the dry period (June-September). The statistical analysis of the pollen data indicated that there was no significant difference between undisturbed and mining-influenced areas, since primary bee sources of this study are widespread used in revegetation of mined areas.

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“…The 120 monographs published by the FCC project encompass 40 species that were marked not fully identified, of which around 50% were flagged by the authors as possible new to science (Cruz et al 2015;Koch & Ilkiu-Borges 2016;Chautems et al 2018;Mattos et al 2018;Koch et al 2018;. Of these, a number has been found only on the canga of Carajás, being thus potentially endemic.…”

Section: Endemic Taxamentioning

confidence: 99%

Cangas da Amazônia: a vegetação única de Carajás evidenciada pela lista de fanerógamas

et al. 2018

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Resumo Nas cangas da Floresta Nacional (FLONA) de Carajás e no Parque Nacional dos Campos Ferruginosos (PNCF) foram registradas 856 espécies, distribuídas em 116 famílias de fanerógamas. As famílias mais ricas foram Poaceae (86), Fabaceae (65) e Rubiaceae (46). O hábito herbáceo foi o melhor representado. Dois gêneros, 24 espécies e uma subespécie são apontadas como endêmicas das cangas da área de estudos. Na FLONA de Carajás, a Serra Norte, com maior amostragem, possui 659 espécies de fanerógamas e na Serra Sul foram registradas 545 espécies. Aproximadamente 60% das espécies documentadas na área de estudos, incluindo espécies endêmicas, não possuem registro para o PNCF. Através da lista taxonômica aqui apresentada, foi possível demonstrar considerável distinção entre as cangas da Serra dos Carajás e as do Quadrilátero Ferrífero, em Minas Gerais, apontando também pouca correspondência dessas duas listas com a canga de Corumbá, no Mato Grosso do Sul. A riqueza e singularidade da flora da região, que inclui diversas espécies endêmicas, associada à ameaça a que estão submetidos estes ambientes por atividades de mineração, apontam para a necessidade de um planejamento para conservação das espécies da flora das cangas de Carajás.

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Flora das cangas da serra dos Carajás, Pará, Brasil: Leguminosae

Cited by 18 publications

References 29 publications

Hydroclimate influences on modern pollen rain of upland southeastern Amazonia

Hydroclimate influences on modern pollen rain of upland southeastern Amazonia

Foraging preferences of the native stingless bee Melipona seminigra pernigra (Apidae: Meliponini) in campo rupestre on canga of Serra dos Carajás, southeastern Amazonia

Cangas da Amazônia: a vegetação única de Carajás evidenciada pela lista de fanerógamas

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