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PHEROMONE COMMUNICATION IN FEATHER-FEEDING WING LICE (INSECTA: PHTHIRAPTERA).
Christopher W Harbison1, Melissa K Breen1, Charlotte E C Hutchins1
1Biology Department, Siena College, 515 Loudon Road, Loudonville, New York 12211.
The Journal of Parasitology
|August 1, 2023
Summary
Wing lice use pheromones to find and aggregate with other lice. This discovery in Columbicola columbae suggests potential new strategies for controlling these common bird parasites.
Area of Science:
- Insect behavior
- Chemical ecology
- Parasitology
Background:
- Pheromone communication is vital for insect parasites.
- Lice are widespread parasites of birds and mammals, impacting wild populations and livestock.
- Little is understood about pheromone communication in lice.
Purpose of the Study:
- To investigate pheromone communication in wing lice (Columbicola columbae) from Rock Doves (Columba livia).
- To determine if lice use chemical signals for aggregation and mate location.
- To explore potential applications in parasite control.
Main Methods:
- Observation of aggregation behavior on flight feathers.
- Y-tube olfactometry experiments to test responses to conspecifics.
- Analysis of sex-specific responses to determine pheromone function.
Main Results:
- Wing lice form aggregations on bird flight feathers.
- Lice use pheromones to move towards groups of conspecifics, indicating an aggregation pheromone.
- Evidence suggests the existence of multiple pheromones, with sex-specific attraction observed.
Conclusions:
- Pheromone communication plays a significant role in the social behavior of wing lice.
- Aggregation pheromones facilitate lice grouping on host feathers.
- Further research into the chemical nature of these pheromones could lead to novel parasite control methods.
