abstract: The number of tracheal gills in the larval Limnephilini varies according to oxygen conditions of the surrounding waters. High proportions of oxygen cause a significant decrease in the number of gills, whereas low oxygen concentrations retult in a significant increase in the number of gills. These morphological adapations are related to moult.
authors.affiliation: Institut für Landwirtschaftliche Zoologie und Bienenkunde der Universität, Bonn, Deutschland.
authors.forename: Wilfried
authors.initials: W
authors.lastname: Wichard