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tobytsang.bsky.social
@tobytsang.bsky.social
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Land-use change reduces bee diversity at local scales, but the impacts of agriculture and urbanisation differ at regional scales. Agriculture has more negative effects overall. onlinelibrary.wiley.com/doi/10.1111/... 🧪 🌏 🌐
(a) Map showing locations of 157 studies included, and the proportion of natural, agricultural, and urban habitats sampled within the study. Pie size is proportional to the number of sampled sites in each study, ranging from 1 to 368. The density plot indicates the distribution of the studied assemblages (n = 3117) along the latitudinal gradient. (b–d) Diversity changes relative to values of natural habitats, with each panel showing responses of one diversity metric: (b) α-, (c) β-, and (d) γ-diversity. Point estimates represent model predictions of each land use based on fixed effects only, while error bars are 95% confidence intervals. The estimations of α-diversity were obtained by holding other covariates at the mean or mode values. For β- and γ-diversity, the estimation reflects a standardized sampling study with all assemblages having 100% sampling completeness, and other covariates at the mean or mode values. Small letters above error bars indicate results from pairwise comparisons, with different letters representing different groups. *Indicates that the pairwise comparisons included marginally nonsignificant results (p = 0.06).
January 6, 2025 at 10:25 AM