D Haag-Wackernagel

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An ethometrical analysis of street pigeons showed that most social interactions under conditions of overpopulation are of an aggressive nature. Through various mechanisms this frequent aggressive behaviour leads to "slumlike" living conditions characterized by intraspecific stress. It is possible to characterize street pigeons in their urban environment by(More)
The feeding of animals as a friendly gesture is deeply rooted in man. This behaviour has a negative effect on the Street-pigeons which as a consequence suffer from overpopulation. The problem can only be solved by limiting this feeding. The pigeon-feeders are the cause of the pigeon-problem in our cities. The feeders can by their motivation be classified in(More)
The relevance of using lucky charms in the examination room has not been well studied. In this analysis the frequency and results of using lucky charms have been determined in a group of medical students (n = 676) sitting the first examination in the medical curriculum (first propaedeutics). Approximately 10% of all candidates took lucky charms with them(More)
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