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Painted redstarts (Myioborus pictus) attack larger prey when using flush-pursue strategy

Title
Painted redstarts (Myioborus pictus) attack larger prey when using flush-pursue strategy
Authors
Jablonski, Piotr G.Lee, Sang-im
DGIST Authors
Lee, Sang-im
Issue Date
2018-03
Citation
Open Ornithology Journal, 11, 34-38
Type
Article
Article Type
Article
Keywords
Myioborus pictusPredator-prey interactionsFlush-pursuersSensory exploitationForaging“Rare enemy”Prey size
ISSN
1874-4532
Abstract
Introduction: Prey escape reaction in insects is an antipredatory adaptation that is mediated by prey neural escape circuits with specific sensory properties. Methods: Certain insectivorous birds, flush-pursuers, exploit this visual sensitivity by employing conspicuous pivoting movements of spread tail and wings to flush the prey into the air where it is available for chase in aerial pursuits. Although it is known that this strategy increases the number of insects attacked, no information has been published on the size distribution of arthropods attacked using flush-pursue strategy vs. traditional gleaning and pecking off substrate strategy. Results: Based on one season of observational data of foraging redstarts (Myioborus pictus) we show that prey items that were flushed and chased were on average larger than prey pecked off of substrates. Conclusion: This may be one of the benefits from flush-pursue foraging – a strategy that is probably costly in terms of energy demands. © 2018 Jablonski and Lee.
URI
http://hdl.handle.net/20.500.11750/6419
DOI
10.2174/1874453201811010034
Publisher
Bentham Science Publishers B.V.
Related Researcher
Files:
There are no files associated with this item.
Collection:
School of Undergraduate Studies1. Journal Articles


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