« Previous AbstractSignaling and circuitry of multiple MAPK pathways revealed by a matrix of global gene expression profiles    Next AbstractSeduced by the dark side: integrating molecular and ecological perspectives on the influence of light on plant defence against pests and pathogens »

J Vector Ecol

Title:		Rapid habituation by mosquito larvae to predator kairomones
Author(s):		Roberts D;
Address:		"Biology Department, Sultan Qaboos University, PO Box 36, Al-Khod 123, Oman. derekmr@squ.edu.om"
Journal Title:		J Vector Ecol
Year:		2014
Volume:		39
Issue:		2
Page Number:		355 - 360
DOI:		10.1111/jvec.12111
ISSN/ISBN:		1948-7134 (Electronic) 1081-1710 (Linking)
Abstract:		"Larvae of some species of mosquitoes have been shown to respond to water-borne kairomones from predators by reducing bottom-feeding and replacing it with surface filter-feeding, which uses less movement and is thus less likely to attract a predator. However, if no predator attack takes place, then it would be more efficient to use a risk allocation strategy of habituating their response depending on the predator and the overall risk. The larvae of Culiseta longiareolata Macquart live in temporary rain-filled pools, where they are exposed to a high level of predation. Within one hour, they responded to kairomones from dragonfly or damselfly nymphs, or to the fish Aphanius, by significantly reducing bottom-feeding activity. Continued exposure to the predator kairomones resulted in habituation of their response to damselflies, a slower habituation to fish, but no habituation to dragonflies even after 30 h. In contrast, the larvae of Culex quinquefasciatus Say normally live in highly polluted and thus anaerobic water, where the predation risk will be much lower. They also showed a significant reduction in bottom-feeding after 1 h of exposure to predator kairomones but had completely habituated this response within 6 h of continuous exposure. Some species of mosquito larvae can thus show a very rapid habituation to predator kairomones, while others only habituate slowly depending on the predator and overall predation risk"
Keywords:		Animals Culicidae/*drug effects Larva/*drug effects Pheromones/*pharmacology Predatory Behavior/*drug effects Culex quinquefasciatus Culiseta longiareolata filter feeding habituation mosquito larvae predator kairomones;
Notes:		"MedlineRoberts, Derek eng 2014/11/27 J Vector Ecol. 2014 Dec; 39(2):355-60. doi: 10.1111/jvec.12111"