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.
AbsyMLCleefAMD’Apolitoet al. (2014) Palynological differentiation of savanna types in Carajás, Brazil (southeastern Amazonia). Palynology38: 78–89.
2.
AbsyMLCleefAMFornierMet al. (1991) Mise en évidence de quatre phases d’ouverture de la forêt dense dans le sud-est de L’Amazonie au cours des 60,000 dernières années: Première comparaison avec d’autres régions tropicales. Comptes Rendues Academie des Sciences II312: 673–678.
3.
BarbosaCVOCoelhoRLGVianaPL (2018) Flora das cangas da Serra dos Carajás, Pará, Brasil: Sapindaceae. Rodriguésia69: 229–239.
4.
BehlingHBauermannSGNevesPCP (2001) Holocene environmental changes in the Sao Francisco de Paula region, southern Brazil. Journal of South American Earth Sciences14(6): 631–639.
5.
BushMB (2002) On the interpretation of fossil Poaceae pollen in the lowland humid neotropics. Palaeogeography, Palaeoclimatology, Palaeoecology177: 5–17.
6.
BushMBRiveraR (2001) Reproductive ecology and pollen representation among neotropical trees. Global Ecology and Biogeography10: 359–368.
7.
CarreiraLMMBarthOM (2003) Atlas de Pólen da vegetação de canga da Serra de Carajás Pará, Brasil. Belém: Museu Paraense Emílio Goeldi, pp. 112.
8.
CarreiraLMMda SilvaMFLopesJRCet al. (1996) Catalogo de Polen das Leguminosas da Amazônia Brasileira. Belém: Museu Paraense Emílio Goeldi, pp. 137.
9.
CarvalhoAMCOliveiraPEAM (2010) Estrutura da guilda de abelhas visitantes de Matayba guianensis Aubl. (Sapindaceae) em vegetação do cerrado. Oecologia Australis14: 40–66.
10.
CassinoRFMartinhoCTCaminhaS (2016) Diversidade de grãos de pólen das principais fitofisionomias do cerrado e implicações paleoambientais. Gaea: Journal of Geoscience9: 4–29.
11.
ColinvauxPADe OliveiraPE (2001) Amazon plant diversity and climate through the Cenozoic. Palaeogeography, Palaeoclimatology, Palaeoecology166: 51–63.
12.
ColinvauxPADe OliveiraPEPatiñoJEM (1999) Manual e Atlas Palinológico da Amazônia (Amazon Pollen Manual and Atlas). Amsterdam: Hardwood Academic.
13.
ColinvauxPAIrionGRäsänenMEet al. (2001) A paradigma to be discarded: Geological and paleoecological data falsify the HAFFER & PRANCE refuge hypothesis of Amazonian speciation. Amazoniana16: 609–646.
14.
CordeiroRCTurcqBSifeddineAet al. (2011) Biogeochemical indicators of environmental changes from 50 ka to 10 ka in a humid region of the Brazilian Amazon. Palaeogeography, Palaeoclimatology, Palaeoecology299: 426–436.
15.
CorrêaGRSchaeferCEGRCorrêaGFet al. (2016) Caracterização de solos derivados de rochas máficas na Serra de Carajás. Boletim do Museu Paraense Emílio Goeldi: Ciências Naturais11: 33–47.
16.
Da-CostaJLCSeccoRSGurgelESC (2018) Flora das cangas da serra dos Carajás, Pará, Brasil: Euphorbiaceae. Rodriguésia69: 59–75.
17.
D’ApolitoCAbsyMALatrubesseEM (2013) The hill of six lakes revisited: New data and re-evaluation of a key Pleistocene Amazon site. Quaternary Science Reviews76(15): 140–155.
18.
D’ApolitoCLatrubesseEMAbsyML (2018) Results confirm a relatively dry setting during the last glacial (MIS 3 and LGM) in Carajás, Amazonia: A comment on Guimarães et al. The Holocene28(2): 330–331.
19.
ErdtmanG (1952) Pollen Morphology and Plant Taxonomy: Angiosperms. Stockholm: Alquist & Wiksell, pp. 539.
20.
GoslingWDMayleFEKilleenTJet al. (2003) A simple and effective methodology for sampling modern pollen rain in tropical environments. The Holocene13(4): 613–618.
21.
GoslingWDMayleFETateNJet al. (2005) Modern pollen-rain characteristics of tall terra firme moist evergreen forest, southern Amazonia. Quaternary Research64: 284–297.
22.
GoslingWDMayleFETateNJet al. (2009) Differentiation between Neotropical rainforest, dry forest, and savannah ecosystems by their modern pollen spectra and implications for the fossil pollen record. Review of Palaeobotany and Palynology153: 70–85.
23.
GresslerEPizoMAMorellatoLPC (2006) Polinização e dispersão de sementes em Myrtaceae do Brasil. Brazilian Journal of Botany29: 509–530.
24.
GrimmEC (2004) Tilia Graph v.2.0.2, Software. Springfield, IL: Research and Collection Center, Illinois State Museum.
25.
GroppoM (2015) Aquifoliaceae in Lista de Espécies da Flora do Brasil. Rio de Janeiro: Jardim Botânico do Rio de Janeiro.
26.
GuimarãesJTFCarreiraLMMAlvesRet al. (2018a) Pollen morphology of the Poaceae: Implications of the palynological and paleoecological records of the southeastern Amazon in Brazil. Palynology42(3): 311–323.
27.
GuimarãesJTFRodriguesTMReisLSet al. (2017) Modern pollen rain as a background for palaeoenvironmental studies in the Serra dos Carajás, southeastern Amazonia. The Holocene27(8): 1055–1066.
28.
GuimarãesJTFSahooPKReisLS (2018b) Modern pollen rain raises doubts about the intensity and extension of the Last Glacial Cycle in Carajás: A reply to D’Apolito et al. The Holocene28(2): 332–335.
29.
GuimarãesJFTSahooPKSouza-FilhoPWMet al. (2016) Late Quaternary environmental and climate changes registered in lacustrine sediments of the Serra Sul de Carajás, south-east Amazonia. Journal of Quaternary Science31: 61–74.
30.
GuimarãesJTFSouza-FilhoPWMAlvesRet al. (2014) Source and distribution of pollen and spores in surface sediments of a plateau lake in south-eastern Amazonia. Quaternary International352: 181–196.
31.
HarleyRM (2016) Flora of the cangas of the Serra dos Carajás, Pará, Brasil: Lamiaceae. Rodriguésia67: 1381–1398.
32.
HaselhorstDSMorenoJEPunyasenaSW (2013) Variability within the 10-year pollen rain of a seasonal neotropical forest and its implications for paleoenvironmental and phenological research. PLoS ONE8(1): e53485.
33.
HermanowskiBCostaMLCarvalhoATet al. (2012) Palaeoenvironmental dynamics and underlying climatic changes in southeast Amazonia (Serra Sul de Carajás, Brazil) during the late Pleistocene and Holocene. Palaeogeography, Palaeoclimatology, Palaeoecology365–366: 227–246.
34.
HooghiemstraHVan der HammenT (1998) Neogene and Quaternary development of the neotropical rain forest: The forest refugia hypothesis, and a literature overview. Earth-Science Reviews44: 147–183.
35.
LisitsynaOVHicksSHuuskoA (2012) Do moss samples, pollen traps and modern lake sediments all collect pollen in the same way? A comparison from the forest limit area of northernmost Europe. Vegetation History and Archaeobotany21: 187–199.
36.
LobãoAQ (2016) Flora das cangas da Serra dos Carajás, Pará, Brasil: Annonaceae. Rodriguésia67: 1205–1209.
37.
LopesMNGDe SouzaEBFerreiraDBet al. (2013) Climatologia regional da precipitação no Estado do Pará. Revista Brasileira de Climatologia12: 84–102.
38.
MattosCMJSilvaWLSCarvalhoCSet al. (2018) Flora das cangas da serra dos Carajás, Pará, Brasil: Leguminosae. Rodriguésia69: 1147–1220.
39.
MaurityCWKotschoubeyB (1995) Evolução recente da cobertura de alteração no Plato N1- Serra dos Carajás-PA: Degradação, pseudocarstificação, espeleotemas. Boletim do Museu Para: Emílio Goeldi Série Ciências da Terra7: 331–362.
MayleFE (2006) The Late Quaternary biogeographical history of South American seasonally dry tropical forests: Insights from palaeo-ecological data. In: PenningtonRTRatterJALewisGP (eds) Neotropical Savannas and Seasonally Dry Forests: Plant Diversity, Biogeography, and Conservation. Boca Raton, FL: CRC Press, pp. 395–415.
42.
MitreSKMardeganSFCaldeiraCFet al. (2018) Nutrient and water dynamics of Amazonian canga vegetation differ among physiognomies and from those of other neotropical ecosystems. Plant Ecology219: 1341–1353.
43.
MotaNFOSilvaLVCMartinsFDet al. (2015) Vegetação sobre sistemas ferruginosos da Serra dos Carajás. In: do CarmoFFKaminoLHY (eds) Geossistemas ferruginosos do Brasil: áreas prioritárias para conservação da diversidade geológica e biológica, patrimônio cultural e serviços ambientais. Belo Horizonte: 3i Editora, pp. 289–315.
44.
MotaNFOWatanabeMTCZappiDCet al. (2018) Amazon canga: The unique vegetation of Carajás revealed by the list of seed plants. Rodriguésia69(3): 1435–1488.
45.
MüllerI (1947) Die pollenanalttische Nachweis der menschlichen Besiedlung im Federsee-und Bodenseegebiet. Planta35: 70–87.
46.
NunesJA (2009) Florística, Estrutura e Relações Solo-Vegetação em Gradiente Fitofisionômico Sobre Canga, na Serra Sul, Flona de Carajás-Pará. Master’s Thesis, Universidade Federal de Viçosa, Viçosa.
47.
NunesJASchaeferCEGRFerreira JúniorWGet al. (2015) Soil-vegetation relationships on a banded ironstone ‘island’, Carajás Plateau, Brazilian Eastern Amazonia. Anais da Academia Brasileira de Ciências87: 2097–2110.
48.
PenningtonRTPradoDEPendryCA (2000) Neotropical seasonally dry forests and Quaternary vegetation changes. Journal of Biogeography27: 261–273.
49.
PorembskiSMartinelliROhlemulleret al. (1994) Vegetation of rock outcrops in Guinea: Granite inselbergs, sandstone table mountains, and ferricretes – remarks on species numbers and endemism. Flora189: 315–326.
50.
QuamarMFBeraSK (2014) Vegetation and climate change during mid and late-Holocene in northern Chhattisgarh (central India) inferred from pollen records. Quaternary International349: 357–366.
51.
QuamarMFBeraSK (2017) Pollen analysis of modern tree bark samples from the Manendragarh forest range of the Koriya district, Chhattisgarh, India. Grana56(2): 137–146.
52.
RayolBP (2006) Análise florística e estrutural da vegetação xerofítica das savannas metalófilas na Floresta Nacional de Carajás; subsídios à conservação. Master’s Thesis, Museu Paraense Emílio Goeldi, Universidade Federal Rural da Amazônia, Belém. Available at: http://bdtd.ibict.br/vufind/Record/UFRA-1_fc82f06c4ed0193de55b218addcda683
53.
RebellatoLDa CunhaCN (2005) Efeito do ‘fluxo sazonal mínimo da inundação’ sobre a composição e estrutura de um campo inundável no Pantanal de Poconé, MT, Brasil. Acta Botanica Brasilica19: 789–799.
54.
ReisLSGuimarãesJTFSouza-FilhoPWMet al. (2017) Environmental and vegetation changes in southeastern Amazonia during the late Pleistocene and Holocene. Quaternary International449: 83–105.
55.
ResendeNPBarbosaALM (1972) Relatório de Pesquisa de Minério de Ferro, Distrito Ferrífero da Serra dos Carajás. Pará: AMZA, pp. 119.
56.
RochaKCJGoldenbergRMeirellesJet al. (2017) Flora das cangas da Serra dos Carajás, Pará, Brasil: Melastomataceae. Rodriguésia68: 997–1034.
57.
RodalMJNSampaioEVSBFigueiredoMA (1992) Manual sobre métodos de estudo florístico e fitossociológico: Ecossistema Caatinga. São Paulo: Sociedade de Botânica do Brasil, pp. 24.
58.
RoubikDWMorenoJEP (1991) Pollen and Spores of Barro Colorado Island, Vol.36. St. Louis, MO: Monographs in Systematic Botany, pp. 268.
59.
SifeddineAMartinLTurcqBet al. (2001) Variations of the Amazonian rainforest environment: A sedimentological record covering 30,000 years. Palaeogeography, Palaeoclimatology, Palaeoecology168: 221–235.
60.
Silva JúniorROQueirozJCBFerreiraDBSet al. (2017) Estimativa de precipitação e vazões médias para a bacia hidrográfica do rio Itacaiúnas (BHRI), Amazônia Oriental, Brasil (Estimation of Precipitation and average Flows for the Itacaiúnas River Watershed (IRW) – Eastern Amazonia, Brazil). Revista Brasileira de Geografia Física10: 1638–1654.
61.
SilvaMFF (1991) Análise florística da vegetação que cresce sobre canga hematítica de cobre na Serra dos Carajás – PA. Boletim do Museu Paraense Emílio Goeldi, Série Botânica5: 175–206.
62.
SilvaPO (2016) Estratégias fenológicas reprodutivas de Xylopia aromatica (Lam.) Mart. (Annonaceae) em área de cerrado. CERNE22: 129–136.
63.
SouzaEBFerreiraDBSGuimarãesJTFet al. (2017) Padrões climatológicos e tendências da precipitação nos regimes chuvoso e seco da Amazônia oriental. Revista Brasileira de Climatologia21: 81–93.
64.
SpieksmaFTMNikkelsBHBottemaS (1994) Relationship between recent pollen deposition and airborne pollen concentration. Review of Palaeobotany and Palynology82: 141–145.
65.
TavaresALDo CarmoAMCSilva JúniorROet al. (2018) Climate indicators for a watershed in the eastern Amazon. Revista Brasileira de Climatologia23: 389–410.
66.
TrindadeJRRosárioASSantosJUM (2018) Flora das cangas da Serra dos Carajás, Pará, Brasil: Myrtaceae. Rodriguésia69: 1259–1277.
67.
UrregoDHBushMBSilmanMRet al. (2012) Holocene fires, forest stability and human occupation in south-western Amazonia. Journal of Biogeography40: 521–533.
68.
Van der HammenTAbsyML (1994) Amazonia during the last glacial. Palaeogeography, Palaeoclimatology, Palaeoecology109: 247–261.
69.
VasconcelosPM (1999) K-Ar and 40Ar/39Ar geochronology of weathering processes. Annual Review of Earth and Planetary Sciences27: 183–229.
70.
VermoereMVanheckeLWaelkensMet al. (2000) A comparison between modern pollen spectra of moss cushions and Cundill pollen traps: Implications for the interpretation of fossil pollen data from southwest Turkey. Grana39: 146–158.
71.
VianaPLDa RochaAESSilvaCet al. (2018) Flora das cangas da Serra dos Carajás, Pará, Brasil: Poaceae. Rodriguésia69(3): 1311–1368.
72.
VianaPLLombardiJA (2007) Florística e caracterização dos campos rupestres sobre canga na Serra da Calçada, Minas Gerais, Brasil. Rodriguésia58: 157–177.
73.
VianaPLMotaNFOIGilASB (2016) Flora of the cangas of the Serra dos Carajás, Pará, Brazil, history, study area and methodology. Rodriguésia67(5): 1107–1124.
74.
WrightHEJ (1967) The use of surface samples in Quaternary pollen analysis. Review of Palaeobotany and Palynology2: 321–330.
75.
ZappiDCGastauerMRamosSJet al. (2018) Plantas nativas para recuperação de áreas de mineração em Carajás. Belém: Instituto Tecnológico Vale, pp. 282.
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