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Beekeeper’s activity (A) and some plant nectar and pollen sources for bees and wild bees in the “Cellulose Park” of Rome (Italy): (B) Quercus pubescens (spring), (C) Angophora floribunda (summer), (D) Eucalyptus sp. (summer), (E) Rhamnus alaternus (spring), and (F) Eucalyptus grandis (winter).
