United States Department of Transportation
Habitat Credit Program for Pollinators/Monarchs
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2024-04-29
File Language:
English
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Edition:Final Report (4/29/22 – 4/29/24)
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Abstract:We examined daylight and paired non-daylight sites at 12 locations in central Pennsylvania to determine if daylighting had secondary benefits to native plants and pollinators. Daylight sites had significantly more species of native flowering forbs and shrubs than non-daylight sites. However, daylight sites also harbored significantly more species of non-native plants and noxious weeds. Pollinator assessment scores did not differ significantly between daylight and non-daylight sites. Pollinator habitat would be improved in daylight sites by controlling for non-native plants following daylight activity. In addition, pollinator habitat would be improved by considering other habitat components needed by pollinators such as wintering habitat and nesting habitat. Overall, we feel with additional management, daylighting can provide benefits to pollinators where it is implemented in Pennsylvania. In particular, these benefits were most apparent along secondary rural roads.
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[PDF - 7.48 MB] -
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Main Document Checksum:urn:sha-512:0384f6f6bb1be40e4e748946608e20ee21cd7758da685ed1db27735755455cdfdce2b2b8e5f74d0d63bc0249028c45e453eb95935433b60d7db488988b97e035
File Language:
English
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