2002
DOI: 10.1046/j.1365-2656.2002.00635.x
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Year-dependent sex-biased mortality in supplementary-fed Tengmalm's owl nestlings

Abstract: Summary 1.In sexually size-dimorphic birds, the larger sex requires more energy during growth, and often suffers from a higher mortality risk during growth than the smaller one when food is limited. 2. Sex-specific growth and mortality were examined in Tengmalm's owl Aegolius funereus (L.) nestlings, a species in which adult females are slightly larger than males. Nestlings were unambiguously sexed using molecular techniques. Nestling mortality in broods provided with supplemental food was compared with that i… Show more

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Cited by 22 publications
(34 citation statements)
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“…Sex‐biases in body size can influence the relative mortality rates of males and females, and among bird species with only moderate SSD such as in plovers, the larger sex usually has the survival advantage (Bortolotti , Oddie , Hipkiss et al . , Råberg et al . , Rowland et al .…”
Section: Discussionmentioning
confidence: 99%
“…Sex‐biases in body size can influence the relative mortality rates of males and females, and among bird species with only moderate SSD such as in plovers, the larger sex usually has the survival advantage (Bortolotti , Oddie , Hipkiss et al . , Råberg et al . , Rowland et al .…”
Section: Discussionmentioning
confidence: 99%
“…Similarly, the larger size of female chicks of Tengmalm's Owls Aegolius funereus gives them a competitive advantage over their male siblings for food items, resulting in males suffering higher mortality than females when food is limited (Hipkiss et al . ). A reduction in anthropogenic food is expected to alter interspecific competition and to reveal different responses according to individual quality or individual energetic state.…”
mentioning
confidence: 97%
“…Birds of prey with fluctuating food supply, reversed sexual size dimorphism (females being larger than males) and asynchronous hatching provide interesting models to test sex allocation strategies under varying environmental conditions. 2002, Hipkiss et al . Appleby et al .…”
mentioning
confidence: 99%