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social groups
What is the public's opinion on this problem, to what degree is its scope comprehensible, and how significant does it seem to different social groups and to the population as a whole? The author suggests answers to these questions.
      
The aim of the epidemiological investigation was the definition of social groups at high risk for admission to hospital as psychogeriatric patients.
      
Parties remain affiliated with their respective social groups in distinctive ways - despite the fact that the professional backgrounds of their members have become more similar.
      
The exchange of information regarding the environment is continuous within social groups of non-human primates.
      
We may conclude that in common voles at least unrelated non breeding females may contribute to the formation of social groups.
      
Subadults behaviorally respond preferentially to the chuck calls of close social associates within their social groups.
      
We examined daytime burrow use year-round in 19 radio-collared badgers belonging to six different social groups, in order to test the hypotheses relating use of multiple sleeping sites to ectoparasite avoidance and social status.
      
Transfers to other social groups and active acquisition of high dominance rank carry a substantial risk for a primate male.
      
In the stable and cohesive social groups of primates (and other group-living mammals) individuals maintain long-lasting partnerships with a subset of their group companions.
      
We studied the effect on adult male cowbirds' communication and mating-related behaviour of being housed in social groups with juvenile males.
      
This study examined the relationship between ambient temperature and the behavior of 135 captive mother-infant baboon pairs living in outdoor social groups.
      
Studying the interactions of 40 different adults from two social groups, we analysed 3021 instances of allo-marking, which may be either mutual, i.e.
      
Theoretical models about female relationships within primate social groups hypothesise that food abundance and distribution are important factors determining the variation of patterns observed among species and populations.
      
During a field study in Kirindy forest, western Madagascar, we studied the initiation and course of group movements, as well as vocalisations used in this context, in three social groups.
      
Several theoretical frameworks exist for explaining variation in reproductive allocation between same-sex individuals living within social groups.
      
We show that the way in which individual helpers invest in these two helping behaviours varies enormously across individuals and among social groups.
      
Consequently, social groups can be made up from individuals who often specialise in one helping behaviour, and/or helpers who perform a number of behaviours to differing degrees.
      
Division of labour within social groups will, therefore, have important consequences for the maintenance of cooperatively breeding in vertebrates.
      
Allomaternal social relationships of infants differed between social groups, largely but not exclusively in response to differences in group composition.
      
We discuss these findings in terms of their importance to the study of behavioral plasticity in social groups and the potential role of keystone individuals in determining group dynamics.
      
 

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