Complex sentence: In terms of land area, Saint James is the largest in Saint Kitts and Nevis, but it is also the least populated, as it mainly consisting of small communities separated by larger areas of dry scrub.
Split into simpler sentences: In terms of land area, Saint James is the largest parish in Saint Kitts and Nevis. However, it is also the least populated, as it mainly consisting of small communities separated by dry scrub.