Data used in: Seed fate in ant-mediated dispersal: Seed dispersal effectiveness in the Ectatomma ruidum (Formicidae) – Zanthoxylum ekmanii (Rutaceae) system Selina A. Ruzi and Andrew V. Suarez. Published in Biotropica Two hour seed removal information used to determine if seed removal differed over the years. It includes data reanalyzed from Ruzi et al. (2017,2021) that was collected in 2013 as well as the seed removal amounts from this study collected in 2015 and 2016. In 2013, caches consisted of 10 seeds each and there were additional caches of other tree species located at one meter intervals. No leaf litter was move and the area was not baited prior to sampling. In this study (2015 and 2016), caches consisted of 5 seeds. There were no other tree species represented at caches. A portion of the leaf litter was moved and the area was baited prior to sampling. 1. Number of variables: 8 2. Number of cases/rows: 35 3. Variable List: Plot: the plot at which the sampling event took place Year: the year in which the sampling event took place Rep: what replicate the sample event was. Numbers repeat over the years Side: the randomly chosen side of the plot sampled Seeds_placed: the number of seeds initially placed Seeds_removed: the number of seeds removed by the end of the 2 hour sampling period Seeds_remaining: the number of seeds that were still located at the original deposition location at the end of the 2 hours Date: the date the sampling event took place