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Emotions In Goats: Mapping Physiological, Behavioural And Vocal Profiles, Elodie F. Briefer, Federico Tettamanti, Alan G. Mcelligott
Emotions In Goats: Mapping Physiological, Behavioural And Vocal Profiles, Elodie F. Briefer, Federico Tettamanti, Alan G. Mcelligott
Elodie Briefer, PhD
Emotions are important because they enable the selection of appropriate behavioural decisions in response to external or internal events. Techniques for understanding and assessing animal emotions, and particularly positive ones, are lacking. Emotions can be characterized by two dimensions: their arousal (bodily excitation) and their valence (negative or positive). Both dimensions can affect emotions in different ways. It is thus crucial to assess their effects on biological parameters simultaneously, so that accurate indicators of arousal and valence can be identified. To find convenient and noninvasive tools to assess emotions in goats, Capra hircus, we measured physiological, behavioural and vocal responses …
Fallow Deer Polyandry Is Related To Fertilization Insurance, Elodie F. Briefer, Mary E. Farrell, Thomas J. Hayden, Alan G. Mcelligott
Fallow Deer Polyandry Is Related To Fertilization Insurance, Elodie F. Briefer, Mary E. Farrell, Thomas J. Hayden, Alan G. Mcelligott
Elodie Briefer, PhD
Polyandry is widespread, but its adaptive significance is not fully understood. The hypotheses used to explain its persistence have rarely been tested in the wild and particularly for large, long-lived mammals. We investigated polyandry in fallow deer, using female mating and reproduction data gathered over 10 years. Females of this species produce a single offspring (monotocous) and can live to 23 years old. Overall, polyandry was evident in 12 % of females and the long-term, consistent proportion of polyandrous females observed, suggests that monandry and polyandry represent alternative mating strategies. Females were more likely to be polyandrous when their first …