Data for paper: "Temporal and spatial heterogeneity of semi-natural habitat, but not crop diversity, is correlated with landscape pollinator richness"

Data supporting the paper: Temporal and spatial heterogeneity of semi-natural habitat, but not crop diversity, is correlated with landscape pollinator richness. By Martínez-Núñez et al., (2022).

Abstract:
1)
Enhancing
the diversity of mass-flowering crops (i.e., crop diversity) in agricultural
landscapes is often proposed as a measure to favour pollinators and pollination, but it is uncertain whether
crop diversity enhances pollinator richness on the wide landscape level.

2)
Here,
we surveyed pollinator communities in semi-natural habitats and mass-flowering
crops throughout the whole growing season in 26 agricultural landscapes to
examine how the temporal and
spatial heterogeneity in semi-natural habitats and crop diversity support pollinator
species richness.

3)
Crop
diversity was unrelated to pollinator richness in the wider landscape, and temporal
and spatial heterogeneity in semi-natural habitats were equally important in
determining pollinator richness. Surprisingly, the crop pollinator species pool
size was a fixed proportion of the landscape pollinator species pool along a
0-72% semi-natural habitat cover gradient.

4)
Synthesis
and applications: Our results suggest that increasing crop diversity alone does
not contribute to maintaining diverse wild pollinator communities in
agricultural landscapes and emphasize the key role of temporally stable habitats
such as semi-natural habitats to maintain rich pollinator communities.