par Chelazzi, Guido;Deneubourg, Jean-Louis ;Focardi, Stefano
Référence Behaviour, 90, 1, page (151-166)
Publication Publié, 1984
Référence Behaviour, 90, 1, page (151-166)
Publication Publié, 1984
Article révisé par les pairs
Résumé : | Somalian populations of the intertidal gastropod Nerita textilis Gmelin show a vertical separation between resting (mid-upper eulittoral) and feeding (lower eulittoral) zone. During high tides and mostly diurnal low tides some snails remain scattered (SF), while other form aggregations (AF) at lower levels of the rocky shore. During the mostly nocturnal low tides both SF and AF migrate downward to feed on microalgae. © 1984, Brill. All rights reserved. |