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Sex ratio adjustment in birds

Szász, Eszter and Kiss, Dorottya and Rosivall, Balázs (2012) Sex ratio adjustment in birds. ORNIS HUNGARICA, 20 (1). pp. 26-36. ISSN 1215-1610

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Abstract

n a number of bird species, the sex ratio of the broods is not random, instead it is related to parental quality and environmental conditions. Several hypotheses have been proposed to explain this phenomenon, the so called sex ratio adjustment. According to these hypotheses, sex ratio adjustment is expected to evolve when the fitness benefit an offspring confers to the parents changes with ecological or social factors in a sex-specific way. Though many correlative and experimental studies support these hypotheses, there are still unresolved problems. In our paper, we provide details on the hypotheses related to sex ratio adjustment and explanations for the differences observed in sex ratio patterns between populations and years. Finally, we discuss the importance of sex ratio adjustment for species conservation.

Item Type: Article
Additional Information: Cited By :9 Export Date: 4 May 2023 Correspondence Address: Rosivall, B.; Behavioural Ecology Group, Pázmány Péter sétány 1/c, Hungary; email: rosi@ludens.elte.hu
Uncontrolled Keywords: environmental effects, life-history, parental quality, sex allocation, sex ratio manipulation, species conservation
Subjects: Q Science / természettudomány > QH Natural history / természetrajz > QH301 Biology / biológia
Q Science / természettudomány > QL Zoology / állattan
SWORD Depositor: MTMT SWORD
Depositing User: MTMT SWORD
Date Deposited: 22 Oct 2024 08:00
Last Modified: 22 Oct 2024 08:00
URI: https://real.mtak.hu/id/eprint/207818

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