Sex-specific sibling interactions and offspring fitness in vertebrates: patterns and implications for maternal sex ratios.

Journal article

Vertebrate sex ratios are notorious for their lack of fit to theoretical models, both with respect to the direction and the magnitude of the sex ratio adjustment. The reasons for this are likely to be linked to simplifying assumptions regarding vertebrate life histories. More specifically, if the sex ratio adjustment itself influences offspring fitness, due to sex-specific interactions among offspring, this could affect optimal sex ratios. A review of the literature suggests that sex-specific...

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Authors: Uller, T

• Publication status: Published
• Journal: Biological reviews of the Cambridge Philosophical Society
• Volume: 81
• Issue: 2
• Pages: 207-217
• Publication date: 2006-05-01
• DOI: 10.1017/s1464793105006962
• EISSN: 1469-185X
• ISSN: 1464-7931
• Language: English
• Keywords: Vertebrates; Adaptation, Biological; Animals; Sibling Relations; Behavior, Animal; Female; Sex Ratio; Sexual Behavior, Animal; Competitive Behavior; Selection, Genetic; Sex Characteristics; Biological Evolution; Sex Determination Processes; Male; Species Specificity