Crepuscular Flight Activity of an Invasive Insect Governed by Interacting Abiotic Factors
Figure 3
Environmental abiotic variables (mean + SE) at various time intervals of a day during the diurnal flight study of Pityophthorus juglandis.
(A) Temperature; (B) Light intensity (B); (C) Wind speed; and (D) Air pressure. Time intervals: 0600 h (2200 h of the previous day–0600 h the current day); 0800 h (0600–0800 h); 1000 h (0800–1000 h); 1200 h (1000–1200 h); 1400 h (1200–1400 h); 1600 h (1400–1600 h); 1800 (1600–1800 h); 2000 h (1800–2000 h); and 2200 h (2000–2200 h). Different lower-case letters above bars denote significant difference between time points with each variable (α = 0.05). N = 134 days except for the time interval 0800 where N = 133 days.