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  • The Effects of Group Size and Position on Vigilance in Young Adults

     

    Eseja5 Socioloģija

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Identifikators:251038
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Publicēts: 05.11.2005.
Valoda: Angļu
Līmenis: Vidusskolas
Literatūras saraksts: Nav
Atsauces: Nav
Darba fragmentsAizvērt

Vigilance behavior in animals has been attributed to various scientific explanations. One of the most widely accepted functions of vigilance is to increase the ability to detect predators. This skill is better known as anti-predator vigilance. Anti-predator vigilance is described simply as a state of being alert to predators. This is an imperative ability for almost any animal's survival. Animals, as well as humans, need to constantly be aware of the dangers surrounding them. In order to stay safe from predators or other threats, animals often find safety in groups and exhibit vigilance within these groups. This may include a herd of buffalo periodically raising their heads in search of wolves, or a woman walking down the street checking both ways for cars. In an attempt to describe the functions of vigilance we have chosen to study two seemingly important facets: Group size and position.
One vital aspect of vigilance is group size. Bertram (1980) demonstrated this relationship in a study of vigilance and group size in ostriches (Struthio camelus). The purpose of the study was to investigate and predict the reasoning behind vigilance. Bertram operationally defines vigilance in ostriches as each time an individual raised or lowered its head. The independent variable of his study was group size and included three different levels. …

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