Interhost Movement of Adult Cat Fleas (Siphonaptera: Pulieidae)

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Abstract
Adult cat fleas, Ctenocephalides felis (Bouché), marked with orange-red or green fluorescent dye were released on one cat to study movement to another cat over a 7-d period. When the cats were separated, 3–8% of the marked fleas moved to the other cat. When the cats were allowed to remain together, 2–15% of the fleas moved. The percentage of fleas unaccounted for ranged from 8–47%. When both cats lived together, 8–15% movement occurred no matter which cat was infested. The percentage of female and male fleas unaccounted for was 8–32 and 30–47%, respectively, highlighting the importance of host grooming. Significantly fewer female cat fleas moved from one host to another than did males. The likelihood of establishing new infestations by adult fleas transferring from one host to another exists. However, visitations to environments capable of supporting immature stages of fleas seem a more important source of flea infestations.

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