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Shrimp adjust their sex ratio to fluctuating age distributions

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Please use this identifier to cite or link to this item: http://hdl.handle.net/1928/1654

Shrimp adjust their sex ratio to fluctuating age distributions

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Title: Shrimp adjust their sex ratio to fluctuating age distributions
Author: Charnov, Eric; Hannah, Robert
Subject(s): evolutionarily stable strategy
fisheries
frequency dependence
protandry
recruitment variation
Abstract: Long-term data sets that quantitatively confirm basic ecological theory are rare for field populations. Highly variable recruitment often causes wide temporal variation in population age distribution and basic theory for adaptive sex ratio often predicts ‘sex ratio tracking’ to match the fluctuating age distribution. Using sex-changing shrimp as a model system, we test this in a new data set of 20 years duration. The new data support the theory, despite intense fishery exploitation that itself has greatly altered the age distribution in recent years.
Date: 2002
Publisher: Evolutionary Ecology Research
Citation: Charnov, E.L. and R.W. Hannah. 2002. Shrimp adjust their sex ratio to fluctuating age distributions. Evolutionary Ecology Research 4:239-246
URI: http://hdl.handle.net/1928/1654

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