Table 1

Summary of sampling effort, mussel density, and beaver slide dimensions across the surveyed streams, including the number of sampled beaver slides, number of sampled frames, mean total mussel density (individuals m−2), mean U. crassus density (individuals m−2), and mean beaver slide width (cm) per stream and in total.

Sampled streams

Goldbach Schinderbach Scharlach Ischler achen Total
Number of sampled beaver slides 3 2 3 3 11
Number of sampled frames 33 27 45 54 159
Mean total mussel density (Ind. m−2) 1.6 ± 3.6 7.3 ± 12.1 3.5 ± 11.3 3.5 ± 5.7 3.7 ± 8.7
Mean U. crassus density (Ind m−2) 1.6 ± 3.6 6.7 ± 11.8 3.5 ± 11.3 3.3 ± 5.6 3.6 ± 8.6
Mean beaver slide width (cm) 52.3 ± 11.7 67.0 ± 2.8 54.3 ± 17.9 88.3 ± 12.6 65.4 ± 19.2

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