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. 2022 Aug 29;24(11):3395–3421. doi: 10.1007/s10530-022-02858-8

Fig. 6.

Fig. 6

Power to identify trends in abundances. Shown are the mean posterior probabilities P(ϕ<1|d,n) given data d conditioned on the total counts n and reflecting the certainty that abundances declined across 1000 replicate simulations for different trends ϕ=0.5, 0.9 or 0.95 as a function of the number of observers that each surveyed a single location with observer-specific detection probabilities and location-specific abundances as described in Box 4