Territory Choice of Pied Flycatchers is Not Based on Induced Cues of Herbivore Damaged Trees
Elina Mantyla*, 1, Paivi M. Sirkia1, Tero Klemola1, Toni Laaksonen1, 2
Identifiers and Pagination:Year: 2010
First Page: 105
Last Page: 111
Publisher Id: TOOENIJ-3-105
Article History:Received Date: 09/04/2010
Revision Received Date: 26/05/2010
Acceptance Date: 01/06/2010
Electronic publication date: 20/7/2010
Collection year: 2010
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Passerine birds use a variety of indirect cues to make territory location decisions. These birds can also distinguish herbivore-damaged plants from undamaged ones during foraging, even when they cannot see the herbivorous larvae or damaged leaves. To test the possibility that also the territory choice of passerines is affected by herbivoreinduced plant cues, we established territories with and without indirect cues of herbivore presence for migratory pied flycatchers (Ficedula hypoleuca) at the time of their arrival. Half of the territories had folivorous moth larvae hidden inside mesh bags to defoliate small trees (Betula spp.) and half had only empty mesh bags on trees. Hidden herbivory on the trees did not affect the mean date of territory choice by either male or female birds. Nonetheless, there was a trend that females, but not males, chose the territories in the same order in two consecutive years. Thus, it seems that pied flycatchers do not use indirect cues of larval presence as a basis for their choice of territory, but possibly some more general environmental cues.