Effects of starvation period on the locomotory response of Rhyzopertha dominica (F.)
Nguyen, Duong T. (2008) Effects of starvation period on the locomotory response of Rhyzopertha dominica (F.). Journal of Stored Product Research, 44 (1). pp. 100-102. ISSN 0022-474X (doi:10.1016/j.jspr.2007.06.007)Full text not available from this repository.
In the context of developing a behavioural bioassay, the effects of 1â��5 days starvation on the locomotory responses of Rhyzopertha dominica were investigated. Movements in an experimental arena with airflow were videoed and analysed using computerised tracking and motion analysis software. Beetle velocity and angular velocity (turning) were influenced adversely following 3 or 4 days of starvation, resulting in a lower number of beetles arriving at food. The highest number of beetles arriving at food was when they were starved for 1 day. Gender had a statistically significant effect on velocity; on average males walked 37% faster than females and there were significant decreases in the velocity of females from the fourth day and male velocity from the fifth day of starvation. Starvation significantly reduced angular velocity of beetles although the effect of gender was not statistically significant. There was a decline in angular velocity
following the first day of starvation, although the negative effect of starvation on turning is not as clear-cut as on velocity, with a more gradual decline with increasing starvation. For undertaking behavioural bioassays with R. dominica, starvation beyond 1 day is unlikely to improve responsiveness.
|Uncontrolled Keywords:||starvation, behavioural bioassay, Rhyzopertha dominica locomotory responses|
|Subjects:||Q Science > QH Natural history > QH301 Biology|
Q Science > QK Botany
S Agriculture > SB Plant culture
T Technology > TP Chemical technology
|School / Department / Research Groups:||Natural Resources Institute|
Natural Resources Institute > Chemical Ecology & Plant Biochemistry Research Group
|Last Modified:||20 Jan 2012 15:07|
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