The circadian rhythm of flight activity ofSpodoptera exiguamales in response to sex pheromone

2015 ◽  
Vol 154 (2) ◽  
pp. 154-160 ◽  
Author(s):  
Wen-Jie Cheng ◽  
Xia-Lin Zheng ◽  
Pan Wang ◽  
Li-Lin Zhou ◽  
Chao-Liang Lei ◽  
...  
Keyword(s):  
Circadian Rhythm ◽  
Sex Pheromone ◽  
Flight Activity

?Rigid? internal timing in the circadian rhythm of flight activity in a tropical bat

Oecologia ◽  
1977 ◽  
Vol 29 (4) ◽  
pp. 341-348 ◽  
Author(s):  
R. Subbaraj ◽  
M. K. Chandrashekaran
Keyword(s):  
Circadian Rhythm ◽  
Flight Activity

scholarly journals Modeling Migratory Flight in the Spruce Budworm: Circadian Rhythm

Forests ◽  
2019 ◽  
Vol 10 (10) ◽  
pp. 877 ◽  
Author(s):  
Régnière ◽  
Garcia ◽  
Saint-Amant
Keyword(s):  
Boundary Layer ◽  
Circadian Rhythm ◽  
Choristoneura Fumiferana ◽  
Spruce Budworm ◽  
Flight Activity ◽  
Boundary Layer Transition ◽  
Layer Transition ◽  
Migratory Flight ◽  
Temperature Conditions ◽  
Mass Migration

The crepuscular (evening) circadian rhythm of adult spruce budworm (Choristoneura fumiferana (Clem.)) flight activity under the influence of changing evening temperatures is described using a mathematical model. This description is intended for inclusion in a comprehensive model of spruce budworm flight activity leading to the simulation of mass migration events. The model for the temporal likelihood of moth emigration flight is calibrated using numerous observations of flight activity in the moth’s natural environment. Results indicate an accurate description of moth evening flight activity using a temporal function covering the period around sunset and modified by evening temperature conditions. The moth’s crepuscular flight activity is typically coincident with the evening transition of the atmospheric boundary layer from turbulent daytime to stable nocturnal conditions. The possible interactions between moth flight activity and the evening boundary layer transition, with favorable wind and temperature conditions leading to massive and potentially successful migration events, as well as the potential impact of climate change on this process, are discussed.

DISTRIBUTION AND FLIGHT ACTIVITY OF OBLIQUEBANDED AND THREELINED LEAFROLLERS (LEPIDOPTERA: TORTRICIDAE) IN THE OKANAGAN AND SIMILKAMEEN VALLEYS OF BRITISH COLUMBIA

1984 ◽  
Vol 116 (12) ◽  
pp. 1659-1664 ◽  
Author(s):  
H. F. Madsen ◽  
J. M. Vakenti ◽  
A. P. Gaunce
Keyword(s):  
British Columbia ◽  
Sex Pheromone ◽  
Flight Activity ◽  
Choristoneura Rosaceana ◽  
Obliquebanded Leafroller ◽  
Large Numbers ◽  
Pandemis Limitata ◽  
Growing Region

AbstractThe distribution and adult flight activity of obliquebanded leafroller, Choristoneura rosaceana (Harris) and threelined leafroller, Pandemis limitata (Rob.) were studied in the Okanagan and Similkameen valleys of British Columbia using traps baited with the sex pheromone of each species. Adult activity began in early June and continued through September and the two species were distributed throughout the apple-growing region of the Okanagan and Similkameen valleys. In the northern Okanagan and in uncultivated areas at higher elevation, the trap captures indicated that both species are univoltine. In the southern Okanagan and the Similkameen Valley, large numbers of both species were captured throughout the season which may indicate more than one generation. Traps captured similar numbers of adults in orchards with known infestations and in orchards lacking infestations, suggesting that males are attracted to traps in orchards from native hosts in uncultivated sites.

The Circadian Rhythm of Flight Activity of the Mosquito Anopheles Gambiae: The Light-Response Rhythm

1972 ◽  
Vol 57 (2) ◽  
pp. 337-346
Author(s):  
M. D. R. JONES ◽  
C. M. CUBBIN ◽  
D. MARSH
Keyword(s):  
Circadian Rhythm ◽  
Phase Response Curve ◽  
Light Response ◽  
Flight Activity ◽  
Phase Shifting ◽  
Apparent Effect ◽  
Maximum Phase ◽  
Activity Peak ◽  
Mosquito Anopheles Gambiae ◽  
Normal Light

1. In sugar-fed A. gambiae females, light may affect flight activity directly or by changing the phase of the circadian rhythm; both responses depend on the phase of the rhythm. 2. The phase-response curve (1 h, 70 lux, signals given in the first cycle in DD following LD 12:12) shows a sharp swing, at about 3 h after normal light-off, from a maximum phase-delay to a maximum phase-advance, each of about 2 h. When signals are given at this time, phase re-setting is very variable; cyclical activity continues but the individuals are out of phase. 3. Phase shifting appears to be a function of the energy of the signal. A 5 min, 70 lux signal has no apparent effect. The effect of a 1 h signal increases with intensity, up to at least 500 lux, but does not appear to be significant below 10 lux. 4. Light normally inhibits flight activity, but there is a burst of activity at light-on (light-on response) if it occurs during the active half of the cycle following the initial activity peak. A vigorous light-on response occurs even at the lowest intensity used (0.3 lux).

The Circadian Rhythm of Flight Activity in the Mosquito Aedes Aegypti (L.): The Phase-Setting Effects of Light-On and Light-Off

1969 ◽  
Vol 51 (1) ◽  
pp. 59-70
Author(s):  
B. TAYLOR ◽  
M. D. R. JONES
Keyword(s):  
Circadian Rhythm ◽  
Aedes Aegypti ◽  
Flight Activity ◽  
Endogenous Rhythm ◽  
Constant Light ◽  
Phase Setting ◽  
Constant Dark

1. The circadian flight-activity of individual, sugar-fed Aedes aegypti females has been studied, using the flight-sound as an indicator of activity. 2. The activity appears to be controlled by an endogenous rhythm with a period of 22-24 hr. in constant dark and about 26 hr. in constant light. 3. Both light-on and light-off have phase-setting effects. Under favourable conditions, peaks of activity occur 13-14 hr. after light-on and 22-23 hr. after light-off. Both these peaks persist in constant dark following an LD 4:20 regime. 4. The total amount of flight-activity is correlated with the duration of light (70 lux) in the 24 hr. period.

Sex pheromone titre in the glands ofSpodoptera liturafemales: circadian rhythm and the effects of age and mating

2017 ◽  
Vol 42 (2) ◽  
pp. 156-162 ◽  
Author(s):  
Qin Lu ◽  
Ling-Yan Huang ◽  
Fang-Tao Liu ◽  
Xia-Fei Wang ◽  
Peng Chen ◽  
...  
Keyword(s):  
Circadian Rhythm ◽  
Sex Pheromone
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