Specific star formation rate (sSFR) as a function of galaxy connectivity for the observed JPAS+DESI galaxies, shown across different redshift and stellar mass bins. Different line styles show galaxies in different tracer density bins. Galaxies in groups and clusters are excluded. Each point represents the mean sSFR at a given K_MC value; points based on fewer than three galaxies are not shown. Thin dashed horizontal lines indicate the average sSFR of the overall population in each mass bin. Error bars correspond to the standard errors of the mean, i.e. the standard deviation normalised by the square root of the number of data points in that bin.