Complex sentence: Dr. Greeney contributed to a publication in Nature Magazine that described how Lepidopteran species show greater host specificity in tropical than temperate forests, which may contribute to the increased species diversity observed across taxa in tropical forests.
Split into simpler sentences: Dr. Greeney contributed to a publication in Nature Magazine that described how Lepidopteran species show greater host specificity in tropical than temperate forests. This phenomenon may be a factor that contributes to the increased species diversity observed across taxa in tropical forests.