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Invasive Predators Affect Community-Wide Pollinator Visitation, Christina T. Liang, Aaron B. Shiels, William P. Haines, Manette E. Sandor, Clare E. Aslan
Invasive Predators Affect Community-Wide Pollinator Visitation, Christina T. Liang, Aaron B. Shiels, William P. Haines, Manette E. Sandor, Clare E. Aslan
USDA Wildlife Services: Staff Publications
Disruption of plant–pollinator interactions by invasive predators is poorly understood but may pose a critical threat for native ecosystems. In a multiyear field experiment in Hawai’i, we suppressed abundances of globally invasive predators and then observed insect visitation to flowers of six native plant species. Three plant species are federally endangered (Haplostachys haplostachya, Silene lanceolata, Tetramolopium arenarium) and three are common throughout their range (Bidens menziesii, Dubautia linearis, Sida fallax). Insect visitors were primarily generalist pollinators, including taxa that occur worldwide such as solitary bees (e.g., Lasioglossum impavidum), social bees (e.g., …