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- W3206754593 abstract "While many cities have embraced urban agriculture, research examining crop productivity in urban environments is limited. Little is known about how abiotic and biotic factors affecting productivity on urban farms compare with those in rural environments. In this study, we investigated environmental factors influencing strawberry (Fragaria x ananassa) productivity for two cultivars at ten farms across a rural-urban gradient in Michigan, USA over a three-year period. We evaluated key drivers of production, namely temperature, pathogens, pests, and pollinators, which we hypothesized would be altered by urbanization. We found no direct effect of urbanization on strawberry production or fruit pathogen and pest damage. However, temperature, an environmental correlate of urbanization, significantly influenced crop productivity. In particular, cooler temperatures at rural farms and warmer temperatures at urban farms limited fruit number in the peak production year. We found no relationship between urbanization and overall abundances of arthropod pests, their predators, or pollinators. However, we found opposite effects of urbanization for two arthropod groups – Vespidae (paper wasps) and Araneae (spiders). Vespidae abundance was positively associated with increased urbanization. These omnivorous wasps are both predators of strawberry pests and pests of fruits themselves. Conversely, spiders, which are predators of strawberry pests, were negatively associated with urbanization. Greater pollinator visitation incrementally improved fruit weight, but only at low to moderate levels of pathogen and pest damage. At high levels of damage, the benefits of pollination were not apparent. Our study reveals that environmental drivers of variation in crop yield, such as pathogen and herbivore damage and pollinator visitation, can be comparable across rural-urban gradients. Some factors, however, such as temperature stress and the abundances of certain pest and beneficial organisms may be affected by urbanization." @default.
- W3206754593 created "2021-10-25" @default.
- W3206754593 creator A5032581639 @default.
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- W3206754593 date "2021-12-01" @default.
- W3206754593 modified "2023-09-25" @default.
- W3206754593 title "Abiotic and biotic drivers of strawberry productivity across a rural-urban gradient" @default.
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- W3206754593 doi "https://doi.org/10.1016/j.baae.2021.09.007" @default.
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