Abstract
It has long been thought that most birds do not use volatile cues to perceive their environment. Aside from some scavenging birds, this large group of vertebrates was believed to mostly rely on highly developed vision while foraging and there are relatively few studies exploring bird response to volatile organic compounds. In response to insect herbivory, plants release volatile organic compounds to attract parasitoids and predators of the pests. To test if insectivorous birds use herbivore-induced plant volatiles (HIPV), dispensers emitting a synthetic blend of HIPV typically emitted after insect herbivory were deployed in a maize field along with imitation clay caterpillars. Significantly more imitation insects were attacked by birds when located close to dispensers releasing HIPV than close to dispenser with organic solvent only. Seven times more peck marks, an index of avian predation, were counted on caterpillars in the vicinity of the HIPV dispensers than on insects close to control dispensers. This is the first field demonstration that insectivorous birds cue on HIPV to locate prey in agricultural settings. These results support the growing evidence that foraging birds exploit volatile cues. This more accurate understanding of their behavior will be important when implementing pest management program involving insectivorous birds.
References
Amo L, Jansen JJ, van Dam NM, Dicke M, Visser ME (2013a) Birds exploit herbivore-induced plant volatiles to locate herbivorous prey. Ecol Lett 16:1348–1355. https://doi.org/10.1111/ele.12177
Amo L, Rodríguez-Gironés MÁ, Barbosa A (2013b) Olfactory detection of dimethyl sulphide in a krill-eating Antarctic penguin. Mar Ecol Prog Ser 474:277–285. https://doi.org/10.3354/meps10081
Degen T, Dillmann C, Marion-Poll F, Turlings TCJ (2004) High genetic variability of herbivore-induced volatile emission within a broad range of maize inbred lines. Plant Physiol 135:1928–1938. https://doi.org/10.1104/pp.104.039891
Dicke M, Baldwin IT (2010) The evolutionary context for herbivore-induced plant volatiles: beyond the 'cry for help'. Trends Plant Sci 15:167–175. https://doi.org/10.1016/j.tplants.2009.12.002
Mäntylä E, Kleier S, Kipper S, Hilker M (2017) The attraction of insectivorous tit species to herbivore-damaged Scots pines. J Ornithol 158:479–491. https://doi.org/10.1007/s10336-016-1412-9
Mösch S, Eilers EJ, Hommes M (2017) Biocontrol of Cameraria ohridella by insectivorous birds in different landscape contexts. BioControl. https://doi.org/10.1007/s10526-017-9857-1
Development Core Team R (2015) R: A Language and Environment for Statistical Computing. R Foundation for Statistical Computing, Vienna
Saavedra I, Amo L (2018) Insectivorous birds eavesdrop on the pheromones of their prey. PLoS One 13:e0190415. https://doi.org/10.1371/journal.pone.0190415
Viitala J, Korplmäki E, Palokangas P, Koivula M (1995) Attraction of kestrels to vole scent marks visible in ultraviolet light. Nature 373:425. https://doi.org/10.1038/373425a0
von Merey G, Veyrat N, Mahuku G, Valdez RL, Turlings TC, D’Alessandro M (2011) Dispensing synthetic green leaf volatiles in maize fields increases the release of sesquiterpenes by the plants, but has little effect on the attraction of pest and beneficial insects. Phytochemistry 72:1838–1847. https://doi.org/10.1016/j.phytochem.2011.04.022
Wiltschko R, Wiltschko W (2017) Considerations on the role of olfactory input in avian navigation. J Exp Biol 220:4347–4350. https://doi.org/10.1242/jeb.168302
Yang SY, Walther BA, Weng GJ (2015) Stop and smell the pollen: The role of olfaction and vision of the oriental honey buzzard in identifying food. PLoS One 10:e0130191. https://doi.org/10.1371/journal.pone.0130191
Acknowledgments
We thank Scott Hopkins (Farm Manager, CANR, UD) for maintaining the Experimental Farm. We also thank Dr. Randy Wisser (Plant and Soil Science, CANR, UD) who lent us access to his maize field to conduct our experiments.
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Hiltpold, I., Shriver, W.G. Birds Bug on Indirect Plant Defenses to Locate Insect Prey. J Chem Ecol 44, 576–579 (2018). https://doi.org/10.1007/s10886-018-0962-0
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DOI: https://doi.org/10.1007/s10886-018-0962-0