Subjects: *Habitat selection; *Forest canopy gaps; *Deciduous forestsGermany
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Subjects: *Crop yields; Honeybees; BeehivesGermany
Subjects: *Pesticides; *Crop science; HoneybeesGermany
Subjects: *Pollen; *Sorghum farming; *Agricultural productivityGermany
Subjects: *HONEYBEES; *BEEHIVES; *BEESUNITED States; GERMANY; PORTUGAL
Subjects: SUGAR beets; THIAMETHOXAM; HONEY plantsGERMANYEUROPEAN Union
Subjects: *Beekeeping; *Endangered species; *Pollination by beesGermany