Fig. 3From: Is it becoming harder to secure reviewers for peer review? A test with data from five ecology journalsProportion of review requests that lead to a completed review for four ecology journals (a, b, c, d), 2003 to 2010 shown in solid circles. Data from [17]. Error bars indicate 95 % confidence intervals. Right-hand axis shows the impact factor for each journal (grey crosses)Back to article page