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Disentangling olfactory and visual information used by field foraging birds

Rubene, Diana and Leidefors, Malin and Ninkovic, Velemir and Eggers, Sönke and Low, Matthew (2019). Disentangling olfactory and visual information used by field foraging birds. Ecology and evolution. 9, 545-552
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Abstract

Foraging strategies of birds can influence trophic plant–insect networks with impacts on primary plant production. Recent experiments show that some forest insectivo‐ rous birds can use herbivore‐induced plant volatiles (HIPVs) to locate herbivore‐in‐ fested trees, but it is unclear how birds combine or prioritize visual and olfactory information when making foraging decisions. Here, we investigated attraction of ground‐foraging birds to HIPVs and visible prey in short vegetation on farmland in a series of foraging choice experiments. Birds showed an initial preference for HIPVs when visual information was the same for all choice options (i.e., one experimental setup had all options with visible prey, another setup with hidden prey). However, if the alternatives within an experimental setup included visible prey (without HIPV) in competition with HIPV‐only, then birds preferred the visual option over HIPVs. Our results show that olfactory cues can play an important role in birds’ foraging choices when visual information contains little variation; however, visual cues are preferred when variation is present. This suggests certain aspects of bird foraging decisions in agricultural habitats are mediated by olfactory interaction mechanisms between birds and plants. We also found that birds from variety of dietary food guilds were attracted to HIPVs; hence, the ability of birds to use plant cues is probably more gen‐ eral than previously thought, and may influence the biological pest control potential of birds on farmland.

Authors/Creators:Rubene, Diana and Leidefors, Malin and Ninkovic, Velemir and Eggers, Sönke and Low, Matthew
Title:Disentangling olfactory and visual information used by field foraging birds
Series/Journal:Ecology and evolution (2045-7758)
Year of publishing :2019
Volume:9
Page range:545-552
Number of Pages:8
Publisher:Wiley
ISSN:2045-7758
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Zoology
Keywords:bird foraging, bird olfaction, herbivore‐induced plant volatiles, methyl salicylate
URN:NBN:urn:nbn:se:slu:epsilon-e-5203
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-5203
Additional ID:
Type of IDID
DOI10.1002/ece3.4773
ID Code:15878
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Crop Production Ecology
Deposited By: SLUpub Connector
Deposited On:31 Jan 2019 10:36
Metadata Last Modified:31 Jan 2019 10:36

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