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The effect of behavioural interactions on the transfer of fleas (Siphonaptera) between two rodent species
1Ramon Science Center, Jacob Blaustein Institute for Desert Research, Ben-Gurion University of the Negev, P.O. Box 194, Mizpe Ramon 80600, Israel.
Abstract:
The transfer of fleas between the house mouse, Mus musculus, and the midday jird, Meriones meridianus, through social contacts was studied by performing interspecific dyadic encounters on a neutral arena. M. meridianus and M. musculus exchanged parasites through social contacts. The intensity of this exchange was higher between mice and adult male and young jirds than between mice and adult female jirds. The pattern of behavioural interactions was the main determinant of the intensity of flea exchange. Adult female jirds were highly aggressive towards mice. In contrast, interactions between male and young jirds and mice were mainly cohesive and resulted in higher frequency of flea transfer. The proportion of fleas transferred was positively correlated with the number and cumulative duration of tactile contacts between opponents in dyads.
Insights
Fleas transferred between house mice and midday jirds during social encounters. Aggressive adult female jirds transferred fewer fleas than cohesive males and young jirds, highlighting behavior
Area of Science:
- Zoology
- Ecology
- Parasitology
Background:
- Fleas are significant ectoparasites that can transmit diseases.
- Understanding host-parasite interactions is crucial for disease ecology.
Purpose of the Study:
- To investigate flea transfer dynamics between house mice (Mus musculus) and midday jirds (Meriones meridianus).
- To determine the influence of social behavior on interspecific parasite exchange.
Main Methods:
- Interspecific dyadic encounters were conducted in a neutral arena.
- Observed social interactions and quantified flea transfer between mice and jirds.
- Analyzed the correlation between behavioral patterns and flea exchange intensity.
Main Results:
- House mice and midday jirds exchanged fleas through social contact.
- Flea transfer intensity varied based on the age and sex of jirds.
- Aggressive interactions by adult female jirds resulted in lower flea transfer compared to cohesive interactions with males and young jirds.
- Flea transfer was positively correlated with tactile contact duration and frequency.
Conclusions:
- Social behavior patterns are key determinants of flea transmission between different rodent species.
- The intensity of flea exchange is influenced by the nature of interspecific interactions, with cohesive behaviors facilitating greater transfer.