Complex sentence: The IUCN Red List of Threatened Species lists "Acropora pulchra" as being of "least concern" because it has a large range and although often uncommon, it is the dominant species in some localities.
Split into simpler sentences: The IUCN Red List of Threatened Species lists "Acropora pulchra" as being of "Least concern". This is because it has a large range and although often uncommon, it is the dominant species in some localities.