The phrase "a more subtle effect" is correct and usable in written English.
It can be used when discussing nuances or understated impacts in various contexts, such as art, literature, or psychology.
Example: "The artist's use of color creates a more subtle effect that draws the viewer in without overwhelming them."
Alternatives: "a more nuanced effect" or "a more delicate effect".
However, when young species have split only recently, extrinsic postzygotic isolation can also be effective through a more subtle effect.
But there may also be a more subtle effect.
But a more subtle effect may also be at work.
Although they admitted a person couldn't be motivated to, say, commit violence simply because of psychological pressure, they pointed out that coercion could have a more subtle effect.
Ideology also has a more subtle effect on individual judges: in general, both Republican and Democratic appointees are affected by their panel colleagues.
I like to infuse aromatic herbs or spices into the milk mixture for a more subtle effect — a small amount of rosemary or bay leaf, or some crushed cardamom seeds.
However, we cannot rule out a more subtle effects in protein transport, such as less effective transfer of the proteins from the inner import channel.
A bond market that eases before the Fed produces a different, more subtle effect from a Fed ease, according to Mr. Paulsen.
These whole cell data were consistent with our in vitro binding studies however we decided to complete our investigation with two further analyses, firstly examining whether or not NCS-1 might exert a far more subtle effect on the CN/NFAT pathway over an acute time course of [Ca2+]i elevation (Fig. 3a).
Rapamycin showed a much more subtle effect on global translation than did caffeine, while both drugs were effective in prolonging chronological lifespan.
He explained that old mirror has a grayer, more subtle effect than new mirror.
