Rodrigues, Érika do Socorro Ferreira; Yao, Qiang (2025): Relative abundance of pollen and spores in a sediment core from Lake Pacú, lower Negro River, Central Amazonia, during the mid- to late Holocene [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.981683
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Published: 2025-07-17 • DOI registered: 2025-07-17
Abstract:
This dataset presents the relative abundance of pollen and spores from 68 sediment samples collected at 0.10 m intervals along core NGR07, retrieved from Lake Pacú in the lower Negro River region, Central Amazonia. The analyses were conducted to reconstruct past vegetation dynamics in response to mid- to late Holocene hydrological variability. Palynomorphs were identified using regional pollen reference collections and published identification keys. Approximately 300 grains were counted per sample (except in pollen-poor intervals), and Lycopodium spores were added as exotic markers to calculate concentration values. The dataset provides insights into shifts in floodplain forest composition, herbaceous vegetation patterns, and the evolution of modern igapó systems over time. Pollen diagrams and cluster analyses were produced using Tilia and CONISS software.
Keyword(s):
Supplement to:
Rodrigues, Érika do Socorro Ferreira; Yao, Qiang; de Oliveira, Paulo Eduardo; Chiessi, Cristiano Mazur; biu Liu, Kam; Bertassoli Junior, Dailson José; Akabane, Thomas K; de Souza Magalhães, Evandro Augusto; de Carvalho, Vitor Araujo; Fang, Shubo (2025): Oscillations in Mid-to Late Holocene Environments of the Lower Negro River, Central Amazonia, Recorded in Pollen and Diatom Assemblages From Lake Pacú Sediments. Paleoceanography and Paleoclimatology, 40(8), e2024PA005069, https://doi.org/10.1029/2024PA005069
References:
Collinvaux, Paul A; de Oliveira, Paulo Eduardo; Moreno, Enrique (2003): Amazon: Pollen Manual and Atlas. CRC Press, https://doi.org/10.1201/9781482283600
Leal, Alejandra; Berrío, Juan Carlos; Raimúndez, Elena; Bilbao, Bibiana (2011): A pollen atlas of premontane woody and herbaceous communities from the upland savannas of Guayana, Venezuela. Palynology, 35(2), 226-266, https://doi.org/10.1080/01916122.2011.603909
Roubik, David W; Moreno, Jorge Enrique (1991): Pollen and Spores of Barro Colorado Island. Missouri Botanical Garden, St. Louis
Stockmarr, Jens (1971): Tablets with Spores Used in Absolute Pollen Analysis. Pollen et Spores, 13, 615-621
Yao, Qiang; Liu, Kam-biu (2018): Changes in Modern Pollen Assemblages and Soil Geochemistry along Coastal Environmental Gradients in the Everglades of South Florida. Frontiers in Ecology and Evolution, 5, 178, https://doi.org/10.3389/fevo.2017.00178
Funding:
Coverage:
Latitude: -2.550900 * Longitude: -60.921200
Date/Time Start: 2021-11-18T00:00:00 * Date/Time End: 2021-11-18T00:00:00
Minimum DEPTH, sediment/rock: 0.0 m * Maximum DEPTH, sediment/rock: 6.8 m
Event(s):
Comment:
Further method/device information:
Instrument Type: Optical microscope, Zeiss, Axiolab 5 with Axiocam 208 color camera (430037-9110-000, Microscopy GmbH).
Preparation Method: Modified acetolysis method according to Stockmarr (1971).
The steps include:
* Pre-treatment with 10% HCl to remove carbonates;
* Treatment with 40% HF to remove silica and other minerals;
* Acetolysis using a 9:1 (v/v) mixture of acetic anhydride and sulfuric acid to dissolve organic matter;
* Washing with distilled water until neutral pH;
* Mounting on slides with glycerin for microscopic analysis.
Counting and Analysis: Approximately 300 grains of pollen and spores (combined) were counted per sample using a Zeiss Axiolab 5 optical microscope equipped with an Axiocam 208 color camera at a magnification of 1300×.
Identification References: Roubik & Moreno (1991; doi:10.2307/4110734); Colinvaux et al. (1999, doi:10.1201/9781482283600), Leal et al. (2011; doi:10.1080/01916122.2011.603909) and Yao & Liu (2018; doi:10.3389/fevo.2017.00178).
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Rodrigues, Érika do Socorro Ferreira | Geocode | |
| 2 | Alchornea sp. | Alchornea sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 3 | Sebastiania sp. | Sebastiania sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 4 | Sapium sp. | Sapium sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 5 | Amanoa sp. | Amanoa sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 6 | Myrtaceae | Myrtaceae | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 7 | Eschweilera sp. | Eschweilera sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 8 | Melastomataceae | Melast | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 9 | Fabaceae | Fabaceae | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 10 | Pouteria sp. | Pouteria sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 11 | Campsiandra sp. | Campisiandra sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 12 | Euphorbiaceae | Euphorbiaceae | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 13 | Moraceae | Moraceae | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 14 | Acalypha sp. | Acalypha sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 15 | Byrsonima sp. | Byrsonima sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 16 | Phyllanthus sp. | Phyllanthus sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 17 | Eugenia inundata | E. inundata | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 18 | Malpighiaceae | Malpighiaceae | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 19 | Terminalia sp. | Terminalia sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 20 | Heterostemon sp. | Heterostemon sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 21 | Apeiba sp. | Apeiba sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 22 | Trema sp. | Trema sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 23 | Hevea sp. | Hevea sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 24 | Cupania sp. | Cupania sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 25 | Annonaceae | Annonaceae | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 26 | Celtis sp. | Celtis sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 27 | Protium sp. | Protium sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 28 | Didymopanax sp. | Didymopanax sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 29 | Anacardiaceae | Anacardiaceae | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 30 | Sapotaceae | Sapotaceae | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 31 | Senna sp. | Senna sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 32 | Virola sp. | Virola sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 33 | Psychotria sp. | Psychotria sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 34 | Sloanea sp. | Slonea sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 35 | Astronium sp. | Astronium sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 36 | Menispermaceae | Menispermaceae | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 37 | Cissus sp. | Cissus sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 38 | Rhamnaceae | Rhamnaceae | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 39 | Annona sp. | Annona sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 40 | Mimosa sp. | Mimosa sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 41 | Guatteria sp. | Guatteria sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 42 | Rutaceae | Rutaceae | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 43 | Zanthoxylum sp. | Zanthoxylum sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 44 | Myrsinaceae | Myrsinaceae | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 45 | Alibertia sp. | Alibertia sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 46 | Macrolobium sp. | Macrolobium sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 47 | Triplaris sp. | Triplaris sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 48 | Maytenus sp. | Maytenus sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 49 | Cestrum | Cestrum | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 50 | Pseudobombax | Pseudobombax | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 51 | Meliaceae | Meliaceae | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 52 | Ilex sp. | Ilex sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 53 | Apocynaceae | Apoceae | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 54 | Matayba sp. | Matayba sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 55 | Hedyosmum sp. | Hedyosmum sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Trees and Shrubs |
| 56 | Poaceae | Poac | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Herbs |
| 57 | Cyperus sp. | Cyperus sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Herbs |
| 58 | Cyperaceae | Cyperac | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Herbs |
| 59 | Sagittaria sp. | Sagittaria sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Herbs |
| 60 | Mauritia sp. | Mauritia sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Palm |
| 61 | Astrocaryum sp. | Astrocaryum sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Palm |
| 62 | Euterpe sp. | Euterpe sp. | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Palm |
| 63 | Ferns | Ferns | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Spore |
| 64 | Trees and shrubs | Tre.shr | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Total pollen |
| 65 | Herbs | Herbs | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Total pollen |
| 66 | Palms | Palms | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Total pollen |
| 67 | Spores | Spores | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Total sum |
| 68 | Pollen | Pollen | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Total (Trees and Shrubs; Herbs; Palms) |
| 69 | Sum | Sum | % | Rodrigues, Érika do Socorro Ferreira | Relative abundance (counted and calculated) | Total (Trees and Shrubs; Herbs; Palms; Spores) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
4692 data points
Download Data
View dataset as HTML (shows only first 2000 rows)