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. 2021 Mar 18;256:109077. doi: 10.1016/j.biocon.2021.109077

Fig. 2.

Fig. 2

a) Proportion of observations done at sites with LHFI values equal to or higher than 90 from March 25th - April 25th of 2015–2020 for iNaturalist; b) proportion of observations done at sites with LHFI values equal to or higher than 90 during Global Big Days of 2015–2020 for eBird; c) observer effort for iNaturalist; d) curator effort for iNaturalist; e) distance effort for eBird; f) sampling protocol for eBird; *indicate statistically significant differences between 2020 and pre-lockdown years.