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Full-Text Articles in Life Sciences
Some Conceptual Issues In The Evolution Of Eusociality, Bill Stubblefield, Eric Charnov
Some Conceptual Issues In The Evolution Of Eusociality, Bill Stubblefield, Eric Charnov
Biology Faculty & Staff Publications
We review natural selection for worker genes in haplodiploid organisms. We also look at how workers may act against other workers to get them to aid mom as the 'reproductive'.
Sex Ratio Evolution In A Variable Environment, Eric Charnov, Hartogh R.L. Los-Den, W.T. Jones, J. Van Den Assem
Sex Ratio Evolution In A Variable Environment, Eric Charnov, Hartogh R.L. Los-Den, W.T. Jones, J. Van Den Assem
Biology Faculty & Staff Publications
We develop a natural selection model for sex ratio control in a spatially variable environment. Predictions of sex ratio alteration as a function of environmental change are tested in laboratory experiments with two parasitic wasps. Field data from a variety of other organisms also support the model. Finally, we discuss possibilities and difficulties for testing this type of evolutionary model.
Sex Ratio: Adaptive Response To Population Fluctuation In Pandalid Shrimp, Eric Charnov, Daniel Gotshall, Jack Robinson
Sex Ratio: Adaptive Response To Population Fluctuation In Pandalid Shrimp, Eric Charnov, Daniel Gotshall, Jack Robinson
Biology Faculty & Staff Publications
Pandalus jordani is a protandrus (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 an individual shrimp maximizes its genetic contribution to the next generation.
Facultative Sex Ratio And Population Dynamics, John Werren, Eric Charnov
Facultative Sex Ratio And Population Dynamics, John Werren, Eric Charnov
Biology Faculty & Staff Publications
No abstract provided.
When Is Sex Environmentally Determined?, Eric Charnov, James Bull
When Is Sex Environmentally Determined?, Eric Charnov, James Bull
Biology Faculty & Staff Publications
No abstract provided.