“…Flight rhythms of worker bees have been studied from the tropics to the Arctic Circle, and these investigations have shown that outdoor flight activity is correlated with nectar flow, pollen collection, temperature, and weather (Butler & Finney, 1942;Domagala-Lipinska, 1962;Gary, 1967;Hocking & Sharplin, 1964;Kenyon, 1898;Lundie, 1925;Sekiguchi & Sakagami, 1966;Smith, 1953). Moreover, flight activity indoors was found to be correlated with the collection of sugar syrup and the temperature of the flight rooms (Bennet & Renner, 1963;Nelson, 1964).…”