Nepotistic alarm calling in the Siberian jay, Perisoreus infaustus

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A mutual understanding? Interspecific responses by birds to each other's aerial alarm calls (2007, background): “Playback experiments to 2 species have confirmed that aerial alarms can alone prompt conspecifics to freeze or flee for cover (Evans et al. 1993; Leavesley and Magrath 2005; see also Griesser and Ekman 2004 ).”
Chapter 8 Survivor Signals (2009, background): “In contrast, alpha males call indiscriminately, suggesting that they are affected by different factors (Griesser and Ekman, 2004).”
Costs of dispersal (2012, background): “…survival (Brown, Brown & Brazeal, 2008) or reproductive success (Part, 1991) due to loss of familiarity with the environment but also due to loss of benefits from parental nepotism (Dickinson et al., 2009; Griesser & Ekman, 2004; Nystrand, 2007) are examples of opportunity costs of dispersal.”
Predator-induced reductions in nest visitation rates are modified by forest cover and food availability (2008, background): “One possible explanation for this pattern is that visitation rates in open habitats are already low as reductions in the vertical stratification of tree canopies due to forest thinning both reduce the amount of food supply and increase the risk of predation to parents (Alaback 1982; Griesser and Ekm”