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Pollen limitation of native species on Chicago green roofs

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With increasing urbanization and creation of novel habitat types, green roofs can provide usable habitat for many species. To date, most research on green roofs has focused on minimizing the environmental impacts of buildings but little is known about the ecological services they provide. Previous research has shown that although green roofs are visited by numerous bees, fewer species visit flowers on roofs than those on the ground. This lack of potential pollinators on green roofs could result in pollen limitation, poor seed production, reduced seed germination, and reproductive failure of many plant species. This study aims to determine whether pollination services on green roofs are sufficient for these novel ecosystems to function as sustainable habitats.

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  • 12/01/2017
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