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![Fig 3. Spatial and temporal trends comparison of snail abundance reported by citizen scientists and expert.
Sum of snail abundance over time per type of rater [Snail icons created with BioRender.com] (A). Mean snail abundance per site type and type of rater (limit of y-axis has been set to 120) (B). For those instances where paired reports are available for more than 40 sites, we consider the agreement in the top 15 locations in terms of abundance. Top 15 locations with the highest abundance of Biomphalaria spp. in February 2022 (citizen reports on the top, expert on the bottom, results from the other months showed similar trends) [OpenStreetMap database: https://www.openstreetmap.org/#map=13/1.0212/30.5998] (C). Percentage of concordance between top 15 sites of Biomphalaria spp. abundance reported by raters over time, the red line indicates the refresher training organised (D).](https://pbs.twimg.com/media/GKqMdNlWsAAj-Gx.jpg?name=small&format=webp)
ALT Fig 3. Spatial and temporal trends comparison of snail abundance reported by citizen scientists and expert. Sum of snail abundance over time per type of rater [Snail icons created with BioRender.com] (A). Mean snail abundance per site type and type of rater (limit of y-axis has been set to 120) (B). For those instances where paired reports are available for more than 40 sites, we consider the agreement in the top 15 locations in terms of abundance. Top 15 locations with the highest abundance of Biomphalaria spp. in February 2022 (citizen reports on the top, expert on the bottom, results from the other months showed similar trends) [OpenStreetMap database: https://www.openstreetmap.org/#map=13/1.0212/30.5998] (C). Percentage of concordance between top 15 sites of Biomphalaria spp. abundance reported by raters over time, the red line indicates the refresher training organised (D).














































