title: Top-bottom asymmetry in vertical orbwebs: a functional explanation and attendant complications.
abstract: The distribution of entangled insects (=actual prey) in symmetrical and asymmetrical orbwebs of four tropical araneid spiders was studied. Both web types show a inhomogeneous insect distribution between individual web sections. Possible explanations are discussed but do not completely explain the inhomogeneous insect distribution.
authors.affiliation: Fachbereich Biologie der Universität, Postfach 1929, D-3550, Marburg, Federal Republic of Germany.
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Nentwig