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J Chem Ecol

Title:		Birds Bug on Indirect Plant Defenses to Locate Insect Prey
Author(s):		Hiltpold I; Shriver WG;
Address:		"Department of Entomology and Wildlife Ecology, University of Delaware, Newark, DE, USA. hiltpold@udel.edu. Department of Entomology and Wildlife Ecology, University of Delaware, Newark, DE, USA"
Journal Title:		J Chem Ecol
Year:		2018
Volume:		20180421
Issue:		6
Page Number:		576 - 579
DOI:		10.1007/s10886-018-0962-0
ISSN/ISBN:		1573-1561 (Electronic) 0098-0331 (Linking)
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"
Keywords:		Animals Birds/*physiology Herbivory Insect Control Larva/physiology Moths/growth & development/physiology Predatory Behavior/*drug effects/physiology Volatile Organic Compounds/chemistry/*pharmacology Zea mays/*chemistry/metabolism Avian olfaction Bird ch;
Notes:		"MedlineHiltpold, Ivan Shriver, W Gregory eng 2018/04/24 J Chem Ecol. 2018 Jun; 44(6):576-579. doi: 10.1007/s10886-018-0962-0. Epub 2018 Apr 21"