FIGURE 4 in Developing a database of Australian grasshopper occurrences from historic field survey notebooks spanning 54 years (Orthoptera: Acrididae, Morabidae, Pyrgomorphidae, Tetrigidae)

FIGURE 4 Comparison of survey consistency among different surveyors. (a) Between-site distance maintained by different lead surveyors. (b) The total number of grasshoppers recorded per site by different lead surveyors. Numbers in the middle of boxplot show median value. (c) Seasonal variation in the number of species counted per site by different lead surveyors. (d) Proportion of total surveys conducted in each season by different surveyors. Values on pie charts show the number of surveys conducted by each surveyor. Seasons are indicated by colours.