This finding agrees with results from
Fig. 5. Boxplot time series of mean change (in mm) for channel pins from one measurement period to the next. Circles indicate outliers (falling outside the second and third quartiles by 1.5
times the interquartile range). Stars indicate far outliers (falling outside the second and third quartiles by 3 times the interquartile range).
228 I.E. Luffman et al. / Catena 133 (2015) 221–232
other recent studies of gully erosion in semi-arid and Mediterranean climates
(Bergonse and Reis, 2011; Martínez-Casasnovas et al., 2009), and
suggests that mass movements on gully sidewalls are ubiquitous and
not limited to seasonally dry climates.