Habitat selection as an antipredator behaviour in a multi-predator landscape: all enemies are not equal

The Journal of Animal Ecology
Chiara MorosinottoErkki Korpimäki

Abstract

1. Breeding territory choice constitutes a crucial antipredator behaviour for animals that determines reproductive success and survival during the breeding season. On arrival to breeding grounds migrant prey face a multitude of 'waiting' predators already settled within the landscape. 2. We studied territory selection and reproductive investment of migrant pied flycatcher (Ficedula hypoleuca) relative to breeding pygmy owls (POs) (Glaucidium passerinum) and Tengmalm's owls (TOs) (Aegolius funereus). Diurnal POs present a greater predation threat to adult flycatchers (up to 80% songbirds in diet) compared with nocturnal TOs (up to 36%). 3. During territory selection, pied flycatchers strongly avoided POs (occupation: 42% in presence vs. 92% in absence of owl nest) but not TOs (80% vs. 75%). This suggests that flycatchers are able to distinguish between two potential predators, avoiding dangerous POs but not obviously responding to the less risky TOs. 4. Flycatchers responded to presence of PO nests with c. 4-day delay in the start of egg-laying. A significantly prolonged nest building period contributed to this potentially costly breeding delay. Flycatchers further significantly reduced initial reproductive investment in presenc...Continue Reading

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Citations

Apr 12, 2012·Oecologia·Chiara MorosinottoErkki Korpimäki
Jan 27, 2012·Proceedings. Biological Sciences·Deseada ParejoJuan Rodríguez
Dec 3, 2013·Oecologia·Veli-Matti PakanenKari Koivula
Apr 13, 2013·Oecologia·Vincenzo PenterianiRui Lourenço
Feb 5, 2016·Oecologia·Heidi BjörklundToni Laaksonen
Apr 15, 2016·Proceedings. Biological Sciences·Benjamin A Belgrad, Blaine D Griffen
Jul 3, 2016·Global Change Biology·Julien TerraubeErkki Korpimäki
Aug 17, 2016·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Emily L C ShepardSteven J Portugal
Aug 3, 2019·Ecology Letters·Michel T KohlDaniel R MacNulty
Jan 30, 2018·Ecology and Evolution·Adam C BehneyJoshua D Stafford
Mar 2, 2018·Current Zoology·Anders P MøllerPiotr Tryjanowski
Aug 16, 2019·Current Zoology·Cristina Daniela PossentiNicola Saino
Oct 25, 2021·The Journal of Animal Ecology·Kaitlyn M GaynorJustin S Brashares

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