Sex ratio: adaptive response to population fluctuations in pandalid shrimp.
Pandalus jordani is a protandrous (sequential) hermaphrodite. Populations show large year-to-year variation in age composition. In response to this variation, individuals alter the age at which they change sex. This response is predicted by a genetic model that assumes that an individual shrimp maximizes its genetic contribution to the next generation.
Charnov
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Gotshall
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Robinson
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JG