Journal of Medical Entomology (2001) 38, 548-556

Barry W. Alto and Steven A. Juliano (2001)
Temperature effects on the dynamics of Aedes albopictus (Diptera: Culicidae) populations in the laboratory
Journal of Medical Entomology 38 (4), 548-556
Abstract: We investigated how constant temperatures of 22, 24, and 26ºC experienced across the full life cycle affected the dynamics of caged populations of Aedes albopictus (Skuse). All cages were equipped with plastic beakers that served as sites for oviposition and larval development. We measured the per capita daily mortality and emergence rates of the adults and size of adult females, and estimated the intrinsic rate of increase (r) and asymptotic density (K) for each caged population. Populations at 26ºC had greater intrinsic rates of increase and lower asymptotic densities relative to populations at 22 and 24ºC. Populations at high temperatures initially had greater per capita daily emergence rates, and also had steeper declines in per capita emergence rate as density increased over the course of the experiment. There was no temperature effect on the size of adult females, nor on per capita daily mortality rate of adults. Results suggest that populations of Ae. albopictus occurring in regions with relatively high summer temperatures are likely to have high rates of population growth with populations of adults peaking early in the season. These populations may attain relatively low peak densities of adults. Populations occurring in regions with low summer temperatures are likely to experience slow, steady production of adults throughout the season with population size peaking later in the season, and may attain higher peak densities of adults. High temperature conditions, associated with climate change, may increase the rate of spread of Ae. albopictus by increasing rates of increase and enhancing colonization due to rapid population growth.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Full text of article
Database assignments for author(s): Steven A. Juliano, Barry W. Alto

Research topic(s) for pests/diseases/weeds:
population dynamics/ epidemiology
environment - cropping system/rotation

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Aedes albopictus