The Circadian Flight Activity of the Mosquito, Anopheles Gambiae: Phase Setting by the Light Regime

1967 ◽  
Vol 47 (3) ◽  
pp. 503-511
Author(s):  
M. D. R. JONES ◽  
M. HILL ◽  
A. M. HOPE
Keyword(s):  
Anopheles Gambiae ◽  
Inhibitory Effect ◽  
Light Period ◽  
Flight Activity ◽  
Circadian Cycle ◽  
Subjective Night ◽  
Mosquito Anopheles Gambiae ◽  
Phase Setting ◽  
Effect Of Light ◽  
Constant Dark

1. The circadian cycle of flight activity of individual, sugar-fed, Anopheles gambiae females has been studied, using the flight-sound as an indicator of activity. 2. In an LD 12:12 régime (alternating 12 hr. light: 12 hr. dark), activity peaks follow both light-off and light-on. The mosquitoes are moderately active in the dark, but are inactive in the light after the first half-hour. 3. If the light period is extended, the activity is delayed until light-off. Light appears to have an inhibitory effect, but the insects may show some activity towards the end of a 48 hr. light period. 4. Cyclical activity continues in constant dark with a period of approximately 23 hr. A late light-off resets the cycle; an early light-off does not. 5. When the LD 12:12 régime is advanced by 6 hr. the cycle is re-entrained within 2-3 days. Light in the second half of the subjective night appears to advance the cycle. 6. It is suggested that the activity is controlled by an endogenous rhythm which possibly controls the release of an excitatory hormone. The effect of light may be mediated through an inhibitory hormone.

Light-on Effects and the Question of Bimodality in the Circadian Flight Activity of the Mosquito Anopheles Gambiae

1972 ◽  
Vol 57 (2) ◽  
pp. 347-357
Author(s):  
M. D. R. JONES ◽  
C. M. CUBBIN ◽  
D. MARSH
Keyword(s):  
Anopheles Gambiae ◽  
Total Activity ◽  
Inhibitory Effect ◽  
Flight Activity ◽  
Activity Level ◽  
Main Peak ◽  
Secondary Activity ◽  
Mosquito Anopheles Gambiae ◽  
A Minor ◽  
Effect Of Light

1. The pattern of non-specific flight activity in Anopheles gambiae females appears to be bimodal, with an initial peak followed by about 12 h of secondary activity, with a maximum 6-10 h after the main peak. 2. The secondary activity is more apparent when the activity level is high, and can account for over 60% of the total activity. When D < 12 h activity is curtailed by the inhibitory effect of light, but there may be a minor peak in the light period, 8-9 h after light-off. 3. The main peak normally follows light-off, but is delayed in LD 3:21 and 1:23. 4. There may also be a peak at light-on if it is abrupt and occurs during the active half of the cycle. The peak is not observed if the light-intensity is changed slowly.

Inversion polymorphism and circadian flight activity in the mosquito Anopheles stephensi List. (Diptera, Culicidae)

1974 ◽  
Vol 64 (2) ◽  
pp. 305-311 ◽  
Author(s):  
M. D. R. Jones
Keyword(s):  
Anopheles Stephensi ◽  
Dark Period ◽  
Inhibitory Effect ◽  
Light Period ◽  
Flight Activity ◽  
Inversion Polymorphism ◽  
Constant Dark

AbstractCircadian flight activity in Anopheles stephensi List. has been investigated using the acoustic aotograph technique. In alternating 12 h light: 12 h dark (50 or 200 lx), both sexes are active during the dark period, with peaks of activity following light-off and light-on. Cyclical activity persists in constant dark and is inhibited and reset by prolonging the light period. There are small differences between the carriers of the alternative chromosomal arrangements 2R+ ( +/+) and 2Rb (b/b) and between the sexes. In +/+ females the period of the cycle in constant dark is approximately half-an-hour longer and, in LD 12:12, there is less activity at light-on than in both sexes of b/b or in +/+ males. The +/+ males appear to be less susceptible to the inhibitory effect of prolonging the light period, although the cycle is reset.

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.

Circadian flight activity in four sibling species of the Anopheles gambiae complex (Diptera, Culicidae)

1974 ◽  
Vol 64 (2) ◽  
pp. 241-246 ◽  
Author(s):  
M. D. R. Jones ◽  
S. J. Gubbins ◽  
C. M. Cubbin
Keyword(s):  
Anopheles Gambiae ◽  
Sibling Species ◽  
Dark Period ◽  
Flight Activity ◽  
The Other ◽  
Gambiae Complex ◽  
Anopheles Gambiae Complex ◽  
Males And Females ◽  
Constant Dark

AbstractCircadian flight activity in the males and females of Anopheles gambiae Giles species A and B, A. melas (Theo.) and A. merus Dön. has been investigated using the acoustic actograph technique. In each species the pattern and timing of activity in males and females is almost identical. Cyclical activity continues in constant dark; the period of the cycle is approximately half-an-hour shorter in A. gambiae species A and half-an-hour longer in A. merus than in the other two species. In alternating 12 h light: 12 h dark, both sexes are active during the dark period, with peaks of activity following light-off and light-on. After light-off, the species become active in the following order: A. gambiae species A, A. melas, A. gambiae species B, A. merus. A. merus is approximately 20 min later than species A.

Light-on and Light-off Effects on the Circadian Flight Activity in the Mosquito Anopheles gambiae

Nature ◽  
1966 ◽  
Vol 211 (5051) ◽  
pp. 871-872 ◽  
Author(s):  
M. D. R. JONES ◽  
M. G. FORD ◽  
J. D. GILLETT
Keyword(s):  
Anopheles Gambiae ◽  
Flight Activity ◽  
Mosquito Anopheles Gambiae

scholarly journals Low-resolution genome map of the malaria mosquito Anopheles gambiae.

1991 ◽  
Vol 88 (24) ◽  
pp. 11187-11191 ◽  
Author(s):  
L. B. Zheng ◽  
R. D. Saunders ◽  
D. Fortini ◽  
A. della Torre ◽  
M. Coluzzi ◽  
...  
Keyword(s):  
Anopheles Gambiae ◽  
Malaria Mosquito ◽  
Low Resolution ◽  
Genome Map ◽  
Mosquito Anopheles Gambiae
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