Even in small language communities there are always dialect differences, whether based on area, gender, class, or other factors.
There are dialect differences between speakers of the mountains and the coast, which hinders their mutual understanding.
Many systems handle this dialect difference by allow a single excess argument to be passed.
There are dialect differences even within 10-15 miles of where native Regional accents are spoken.
The language has the following vowels (please note that there is some dialect difference as well):
According to Ethnologue there are several dialect differences, but all are inherently intelligible.
There is unlikely to be significant dialect differences among them.
Changes emerged then, which spread in wave-like patterns, creating the dialect differences attested today.
Dialect levelling is the means by which dialect differences decrease.
But internal migrations and outside influence is fast diluting those subtle dialect differences among the younger generations.