Diurnal activity patterns of Whooper Swan wintering at Pinglu, Shanxi,China Shifting Nicotiana attenuata‘s diurnal rhythm does not alter its resistance to the specialist herbivore Manduca sexta Diurnal rhythm of Viburnum awabuki and Betula luminifera volatiles and electroantennogram response of Batocera horsfieldi. Diurnal rhythm of reproductive behavior of cotton leafworm Spodoptera litura (Fabricius)(Lepidoptera: Noctuidae)feeding on different hosts