What question did this study set out to answer?

To evaluate how agricultural and urban land use changes affect the taxonomic and phylogenetic diversity of bees across local, turnover, and regional scales.

January 1, 2025Global Change BiologyOpen Access

Land Use Change Consistently Reduces α‐ But Not β‐ and γ‐Diversity of Bees

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Authors

TTToby P. N. TsangUniversity of Toronto ASA. A. Amado De SantisConsejo Nacional de Investigaciones Científicas y Técnicas GAGabriela Armas‐QuiñonezUniversity of San Carlos of Guatemala

Discussion

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Implication

Global synthesis reveals land use change consistently reduces alpha diversity in bee assemblages, indicating distinct scale-dependent ecological threats across agricultural and urban biomes.

Key Points

To evaluate how agricultural and urban land use changes affect the taxonomic and phylogenetic diversity of bees across local, turnover, and regional scales.
Synthesized a multicontinental dataset consisting of 3,117 bee assemblages compiled across 157 studies.
Quantified shifts in taxonomic and phylogenetic α-diversity (local), β-diversity (turnover across sites), and γ-diversity (regional) relative to natural habitats.
Taxonomic α-diversity declined by 16% to 18% and phylogenetic α-diversity decreased by 11% to 12% in both agricultural and urban habitats relative to natural baselines.
Taxonomic and phylogenetic β-diversity increased by 11% and 6%, respectively, in urban environments, but showed no systematic changes in agricultural settings.
Agricultural land use led to a 22% drop in taxonomic γ-diversity and a 17% drop in phylogenetic γ-diversity, whereas urban γ-diversity did not differ significantly from natural habitats.

Cite This Study

Tsang et al. (2025) studied this question.

synapsesocial.com/papers/6a71004cf44fa9f079dec1ad https://doi.org/10.1111/gcb.70006

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Implication

Global synthesis reveals land use change consistently reduces alpha diversity in bee assemblages, indicating distinct scale-dependent ecological threats across agricultural and urban biomes.

Land Use Change Consistently Reduces α‐ But Not β‐ and γ‐Diversity of Bees

Discussion

Member takes

Implication

Key Points

Cite This Study

Land Use Change Consistently Reduces α‐ But Not β‐ and γ‐Diversity of Bees

Discussion

Member takes

Implication

Key Points

Cite This Study

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