Fig. 5

Relative proportion of sampling methods and assessment schemes listed for time series collated by Haase et al. [43], reporting native (left), non-native (middle), or no crayfish species (right). See Additional file 1: Table S1 for the country of origin and sampling methods for each time series reporting crayfish and Additional file 1: Table S2 for details on acronyms. Note that some assessment schemes are ultimately based on methods that are also displayed