Subdominant animals in groups of mammals live under continuous strain due to the presence of dominant individuals of the same sex. They are suppressed in different ways and have to develop an ability to cope with this, using the space remaining in their specific situations to generate well-being and to develop their species' specific behavior. This situation of a subdominant animal is investigated in a morphologically conservative deer species, the Chinese muntjac (Muntiacus reevesi micrurus), which are mostly decribed as solitary living animals. Which spatial and social mechanisms does it use and which abilities are required and developed while growing up and remaining in a group? Which internal states are involved and how are performances individually shaped?
In nearly 500 hours of observation breeding groups of three to eight muntjacs of different ages, kept in enclosures of 1,800 - 2,500 m², were studied, recording about 250 behavioral units. The data concerning the use of the spatial areas, different forms of activities, resting behaviour and social contacts, combined with the accompanying postures indicating the internal states. With the arrangement in a Cartesian coordinate system it was possible to include the distance between two animals at any time to estimate social relations influences.
Discussed are individual skills in coping with changing situations, the implications of social relationships and the amount of experiences. First approaches to access the animals' knowlege about their situation are tried. To describe and to analyse the different influences of the various factors a model distinguishing three levels has been designed.
This type of study provides complementary insights into what constitutes a fully developed healthy animal including its adequate motivational and affective states. Such knowledge is important in different fields of research and application, it allows for example to improve the animals' living conditions and to access in captive and free-living individuals the extend of their actual well-being.