The two pieces of literature are drastically different. “Describing and quantifying interspecific interactions: a commentary on recent approaches” is a piece which argues why certain approaches to interspecific interactions are better than others using the evidence of several studies and experiments, while “Neighbor Relations within a Community of Epiphytic Lichens and Bryophytes” is a report of the study conducted by the writers John and Dale. These are two distinct types of scientific writing; one is analyzing the works of others and determining something from that while the other piece tells of its own study. Therefore, aspects of each paper are different.
Comments
Comment
Instead of opening up with "the two pieces of literature are drastically different" I would've said "in scientific writing, research and review articles differ depending on what the piece highlights and the type of information that is analyzed through each article". You have to put yourself in a position in which a reader has no idea what two pieces of literature that you are writing about.
suggestion
You already stated in the beginning of the paragraph that the two writings are different and you end the paragraph by repeating the same thing. I would suggest not repeating that at the end only because it's such a short paragraph and also add more differences you found since you said they were drastically different.
Avoid hyperbole
Avoid judgments (and hyperbole) like "drastically".