Does mating prevent monogamous males from seeking other females? A study in prairie voles (Microtus ochrogaster)
2013
Rodriguez, Natalia A. | Legzim, Karine M. | Aliou, Fayeza | Al-Naimi, Omar Ali S. | Bamshad, Maryam
Male prairie voles form pair bonds under laboratory conditions, but show a variety of mating tactics in nature. We tested them in the laboratory to determine if their decision to reproduce with a single or multiple females is related to how they process sensory information from females. Three groups of mated males were tested for their attentiveness toward two females and their odors. Males given a choice to investigate a box holding their mate or a box holding a sexually receptive female spent more time with the box of the sexually receptive female than that of their mate. Similar results were found when females were removed and replaced by their odors. However, males did not attend preferentially to the sexually receptive female under all circumstances. When given a choice between a sexually unreceptive and a sexually receptive female, males did not display a difference in their attentiveness. Furthermore, males tested in presence of their mate were more attentive to the odor of the sexually receptive female than males tested in presence of a sexually unreceptive female. The data suggest that access to the mate's sensory cues may influence male's decision to seek females other than his mate.
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