Follow with a description of the problem and its history, including previous research

"Despite the ubiquity and abundance of P. semispinosus, only two previous studies have assessed habitat use, with both showing a generalized habitat use. [brief summary of these studies]." (Lambert and Adler, p. 70)

"Although very good results have been obtained using polymerase chain reaction (PCR) amplification of DNA extracted from dried blood spots on filter paper (1,4,5,8,9), this preservation method yields limited amounts of DNA and is susceptible to contamination." (Torrance, MacLeod & Hache, p. 64)

Writing Guides

Writing in Science

Follow with a description of the problem and its history, including previous research