title: Some aspects of locomotory activity and gregarious behaviour of Hypogastrura viatica tullbe 1872 (Collembola).
abstract: A method to analyse and quantify the locomotory activity of a soil dwelling organisms is described. It is found that the locomotory activity of an isolated individual of Hypogastrura viatica, subject to restlessness, decreases in time, resulting in a constant basic activity. The effect of clustering on an individual results in a constant decrease of its activity, independently of the cluster size and in a decrease of the influence of restlessness.
authors.affiliation: Laboratorium voor Oecologie der Dieren, Gent.
authors.forename: J
authors.initials: J
authors.lastname: Mertens
authors.affiliation: Laboratorium voor Natuurkunde, Gent.
authors.forename: R
authors.initials: R
authors.lastname: Bourgoignie