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We analyse a sample of twelve galaxy clusters, from the Kapteyn IAC WEAVE INTCluster Survey (KIWICS) looking for dwarf galaxy candidates. By usingphotometric data in the $r$ and $g$ bands from the Wide Field Camera (WFC) atthe 2.5-m Isaac Newton telescope (INT), we select a sample of bright dwarfgalaxies (M$_r$ $\leq$ -15.5 mag) in each cluster and analyse their spatialdistribution, stellar colour, and as well as their S\'ersic index and effectiveradius. We quantify the dwarf fraction inside the $R_{200}$ radius of eachcluster, which ranges from $\sim$ 0.7 to $\sim$ 0.9. Additionally, whencomparing the fraction in the inner region with the outermost region of theclusters, we find that the fraction of dwarfs tends to increase going to theouter regions. We also study the clustercentric distance distribution of dwarfand giant galaxies (M$_r$ $<$ -19.0 mag), and in half of the clusters of oursample, the dwarfs are distributed in a statistically different way as thegiants, with the giant galaxies being closer to the cluster centre. We analysethe stellar colour of the dwarf candidates and quantify the fraction of bluedwarfs inside the $R_{200}$ radius, which is found to be less than $\sim$ 0.4,but increases with distance from the cluster centre. Regarding the structuralparameters, the S\'ersic index for the dwarfs we visually classify as earlytype dwarfs tends to be higher in the inner region of the cluster. Theseresults indicate the role that the cluster environment plays in shaping theobservational properties of low-mass halos.

The dwarf galaxy population in nearby clusters from the KIWICS survey