Seed rain sampling in a secondary subtropical forest invaded by Ligustrum lucidum subject to experimental management, 2021-2023

Abstract

These seed rain data were collected during a field experiment evaluating the management of secondary forests affected by Ligustrum lucidum invasion. The experiment established six permanent plots of 240 metres by 140 meters each (3.36 hectares, see related dataset). Plots were established in pairs (3 pairs in total), where one element of the pair was assigned as the control scenario (no actions applied), and the other was the treatment (L. lucidum control and native tree planting). After implementing the treatment, 288 seed traps were established, each one being a 0.5x0.5-metre quadrat of mosquito mesh suspended by stakes at 0.30 metres above the ground. In total 48 seed traps per plot were deployed, allocating 12 seed traps to each of the 4 transects within each of the six permanent plots. Every two weeks, all the fruits and seeds were collected that had fallen on the traps, and then we identified each item at the species level when it was feasible. They were identified using field guides, a reference collection of fruits and seeds gathered from local field sites and supported by local experienced taxonomists. Also recorded was if there were signs that the fruit was consumed by animals.