Specimens identified as Nebria were misidentified in the original paper, Coleoptera associated with intermittent streams and their riparian zones in south coastal British Columbia (Schutz and Little Reference Schutz and Little2023). These specimens have been re-identified and classified as either Leistus ferruginosus or Synuchus impunctatus. The authors thank Robert McGregor for his help uncovering this error.
In the Terrestrial beetle diversity subsection of the Results, the statement, “These were sorted into 25 distinct taxa (Table 3), with 6.5% of individuals identified to species, 23.7% to genus, 65.4% to subfamily, and 4.4% to family”, should be corrected to read, “These were sorted into 26 distinct taxa (Table 3), with 6.5% of individuals identified to species, 23.7% to genus, 65.4% to subfamily, and 4.4% to family.” The following sentence, “Of the 25 taxa collected, 14 (56%) were present in only one of the 16 pooled samples”, should be corrected to read, “Of the 26 taxa collected, 14 (54%) were present in only one of the 16 pooled samples.”
In the Beetle abundance and richness subsection of the Results, the statement, “Taxon richness in B&K was also higher than in the Malcolm Knapp Research Forest, with 21 taxa found at B&K compared to 13 at the Malcolm Knapp Research Forest”, should be corrected to read, “Taxon richness in B&K was also higher than in the Malcolm Knapp Research Forest, with 22 taxa found at B&K compared to 13 at the Malcolm Knapp Research Forest.”
In the Beetle community composition subsection of the Results, the sentence, “With the added detail of identifying taxa to subfamily, genus, and species level where possible, it appeared that communities were dissimilar between the flowing phase and the nonflowing phase, with most sites clustered in the lower left corner of the NMDS space (Fig. 5B)”, should be corrected to read, “With the added detail of identifying taxa to subfamily, genus, and species level where possible, it appeared that riparian communities grouped together in the lower right quadrant of NMDS space, with the exception of the B&K non-flowing riparian communities (Fig. 5B).”
Table 3, Table 4, Figure 4, and Figure 5 are also corrected, and their updated forms are shown below.
Corrected tables
Table 3. Coleoptera taxa collected in all pitfall traps, their abundance, and their frequency of occurrence (percentage of the 16 pooled samples in which the taxon was found)
Table 4. Results of generalised linear mixed-effect models, using the Poisson distribution with a log link function. Estimates for the intercept and the effect of each parameter of interest are reported from the full generalised linear mixed-effect models for each response variable, and parameters that were significant (P < 0.05) according to likelihood ratio tests are indicated with asterisks. Study area (Malcolm Knapp Research Forest or B&K) was considered a random effect, and the variance associated with this random effect and the among-area standard deviation (in parentheses) is reported in the bottom row of the table
Corrected figures
Figure 4. Total abundance, or number of individuals per pooled sample, and taxa richness, or number of taxa, of Coleoptera caught in pitfall traps throughout the survey period at the two study locations. Colours indicate samples from riparian habitats and from streambank or streambed habitats. Circles indicate samples collected from the B&K study area, and squares indicate samples collected from the Malcolm Knapp Research Forest (MKRF) study area.
Figure 5. Nonmetric multidimensional scaling (NMDS) of Coleoptera communities collected in pitfall traps, at the level of A, family (stress = 0.114), and B, lowest identifiable taxon (stress = 0.141). Colours of open and closed shapes indicate the flow phase when the community was collected: blue, flowing [early summer]; red, nonflowing [late summer]. Filled shapes indicate communities around perennial stream reaches, and open shapes indicate communities around intermittent stream reaches. Circles represent communities from the riparian zone, and triangles represent communities from streambank or (for intermittent streams during the non-flowing phase) streambed locations. Shapes are labelled with the study area where they were collected: MKRF, Malcolm Knapp Research Forest; BNK, B&K.
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