Female-biased population sex ratios caused by genetic rather than ecological mechanisms
Xiaomeng Mao,
Andres J. Cortés,
Christian Rixen
et al.
Abstract:Abstract1. Biased sex ratios among reproductive individuals are common in plants, but the underlying mechanisms, as well as the evolutionary consequences, are not well understood. The classical theory of Düsing and Fisher predicts an equal primary sex ratio at seed production, based on the selective advantage of the rare sex. Biased sex ratios among reproductive plants can arise from sexual dimorphism in survival and flowering. Sex ratio biases can also be present from seed; in these cases, assumptions of Düsi… Show more
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