In recent years,small,dense nuclear star clusters(NSCs)have been shown to be fairly ubiquitous in the cores of low-mass galaxies.We aimed to test whether there is an environmental dependence on the fraction of early-type galaxies containing NSCs,and whether the NSC properties vary with environment.Using dual-band HST/ACS data,we analyzed the surface brightness profiles of 23 nearby early-type field galaxies to identify and characterize their NSCs.We compared the Field nucleation fraction to that which was found for early-type galaxies in the Virgo Cluster by the ACS VCS,and found them to be consistent with one another.This suggests that the process by which a NSC forms is not strongly environmentally dependent.We also combine these results with results from a Chandra X-ray survey of the nuclei of 203 Field and Virgo early-type galaxies,which found that SMBH activity is higher for Field galaxies.Coupled with the Chandra result,our findings indicate that,since the last epoch of star formation,the funneling of gas to the nuclear regions has been inhibited more effectively for Virgo galaxies,arguably via ram pressure stripping.