Before revision:  These changes in diversity are driven by an "early-bird" effect in which species specialized for nutrients that are initially more abundant gain a population advantage over other species. We explore the interplay of this effect with different environmental factors and diversity-supporting mechanisms , such as immigration and cross-feeding, and find a variety of ensuing relationships between nutrient supply and diversity .
After revision:  These changes in diversity are driven by an "early-bird" effect . The interplay of this effect with different environmental factors and diversity-supporting mechanisms , such as immigration and cross-feeding, and find a variety of ensuing relationships between nutrient supply and diversity .