首页|Grassland restorations improve pollinator communities: a meta-analysis
Grassland restorations improve pollinator communities: a meta-analysis
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NSTL
Springer Nature
Natural grasslands are being destroyed at an alarming pace, but land managers are actively working to restore these habitats. Many of these efforts focus on restoring plant diversity but often do not consider responses of higher trophic levels such as pollinators, which provide crucial ecosystems services. We conducted a meta-analysis of 25 large-scale studies to examine the effects of grassland restorations on pollinator communities. Specifically, we compared pollinator communities in restored, degraded and remnant grasslands to determine if restorations improve pollinators from a degraded state and if they fully restore them to remnant values. We found that grassland restorations significantly improved both pollinator abundance and richness as compared to degraded grasslands. Additionally, pollinator abundance and richness did not significantly differ from remnant sites, indicating a near full recovery. Sub-analyses found that factors such as pollinator taxa, restoration age, and mode of land degradation all influenced the magnitude of recovery. In particular, lepidopteran abundance increased more than bee abundance in these restorations. Older restorations (> 10 years) showed the strongest improvements in pollinator communities. This research highlights the importance of grassland restorations in supporting not only plant diversity but also pollinators.
NSTL
Springer Nature
