River pollen traps data from Amazonia

We present a set of data from river pollen traps, from the Amazonian regions of Peru and Ecuador. The traps were set up in 2024 in the Yanayacu River (Peru) for a pilot trial, and then in the Yanayacu, Amazon (Peru) and Tiputini (Ecuador) in 2025. The traps were subdivided into sections, separated by decreasing mesh size (150, 48 and 5 µm) and viscose rayon (placed before and after the 5µm mesh; >5 and <5 µm) to increase trapping efficacy; pollen was counted separately for each trapping medium and then summed for the entire trap. The following data contains the raw pollen counts, percentages, concentrations for the separate trapping media in each trap, as well as the cumulative data for each trap. Pollen influx was calculated for each entire trap. Authors/Data owners: Dael Sassoon, Encarni Montoya Funding: MSCA (Project PALOMA, ID: 101105420) Principal investigator: Dael Sassoon, Encarni Montoya Created: 05/02/2026 Last modified: 12/05/2026 Sample type: River traps (modern) Sites: Peru (Yanayacu = YAN; Amazon = AMA) and Ecuador (Tiputini = TIP) Sampling: Dael Sassoon, Ander Davila Diaz (Peru, 2024 and 2025). Encarni Montoya, Mari Carmen Trapote (Ecuador, 2025) Pollen identification and counting: Dael Sassoon, 2026 Sheets: Raw counts: This data contains the raw pollen counts for each separate trapping medium. Duration of the trap deployment period and depth of the trap under the water surface is indicated in the Duration/Depth column. Percentage (%): This data contains the pollen abundance percentages for each separate trapping medium Concentration (cc): This data contains the pollen concentrations for each separate trapping medium Full trap raw counts: This data contains the raw pollen counts for each full trap Full trap percentage (%): This data contains the pollen abundance percentages for each full trap Full trap concentration (cc): This data contains the pollen concentrations for each full trap Pollen influx: This data contains the pollen influxes (calculated per day and per hour) for each full trap In case of interest, please contact: [e-mail]