Effects of feeding on the circadian rhythm of Ceratophyllus s. sciurorum (Siphonaptera: Ceratophyllidae).


Circadian rhythm in newly emerged blood-fed individuals of the flea Ceratophyllus s. sciurorum was studied in a constant environment, using an insect activity monitor. The results of trials run continuously over seven days confirmed the finding that C. s. sciurorum has a self-sustaining clock. Statistical tests confirm that feeding weakens the rhythm but… (More)


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