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- Title
Urban development reduces bee abundance and diversity.
- Authors
Pfeiffer, Vera; Crowder, David W.; Silbernagel, Janet
- Abstract
Wild bee communities persist in cities despite major disruption of nesting and food resources by urban development. Bee diversity and abundance is key for urban agriculture and maintenance of plant diversity, and assessing what aspects of cities enhance bee populations will promote our capacity to retain and provision bee habitat. Here, we assessed how variation in land cover and neighborhood development history affected bee communities in the midwestern US urban landscape of Madison, Wisconsin. We sampled bee communities across 38 stratified sites with relatively high (>55%) or low (<30%) levels of impervious surface, and assessed effects of land use and neighborhood development history on bee abundance and species richness. We show abundance and richness of soil nesting bees was lower in newer neighborhoods. Soil nesting bees and bee community richness decreased as cover of impervious surface increased, but above ground nesting bees were minimally impacted. Bee community similarity varied spatially and based on dissimilar local land cover, only for soil nesting bees, and the overall bee community. Impervious surface limited bee abundance and diversity, but new neighborhoods were associated with greater negative effects. We suggest that enhancing the structural diversity of new neighborhoods in urban ecosystems may imitate the structural benefits of older neighborhoods for bee populations.
- Subjects
MADISON (Wis.); URBAN ecology; BEES; COMMUNITY development; URBAN agriculture; CITIES &; towns; BEE colonies
- Publication
Urban Ecosystems, 2023, Vol 26, Issue 6, p1535
- ISSN
1083-8155
- Publication type
Article
- DOI
10.1007/s11252-023-01393-1