Fig. 2From: On a roll: a direct comparison of extraction methods for the recovery of eDNA from roller swabbing of surfacesRanked radar plot assessing combinations of processing and extraction methods for roller swabs, based on efficacy, cost and effort parameters. The highest rank for each category is denoted by the number one (best), and the lowest denoted by the number eight (worst). Resulting quadrilaterals with larger areas represent better overall methods, while smaller quadrilaterals are less desirableBack to article page