A critique of methods for measuring life history trade-offs
Article first published online: 20 DEC 2002
Journal of Evolutionary Biology
Volume 1, Issue 4, pages 293–303, July 1988
How to Cite
Pease, C. M. and Bull, J. J. (1988), A critique of methods for measuring life history trade-offs. Journal of Evolutionary Biology, 1: 293–303. doi: 10.1046/j.1420-9101.1988.1040293.x
- Issue published online: 20 DEC 2002
- Article first published online: 20 DEC 2002
- Received 4 September 1987; accepted 26 February 1988.
- Cited By
- Life history theory;
- genetic and phenotypic covariance;
Constraints have important effects on the evolution of life history strategies, but several difficulties have been encountered in determining constraints empirically. Here we investigate methods for measuring a specific type of constraint known as a trade-off. A trade-off between two traits implies a perfect negative correlation between the traits. Trade-offs may involve more than two traits, however, and pairs of traits involved in such a higher-dimensional trade-off may be positively correlated. If some of the traits involved in a trade-off are omitted from the experimental design, the trade-off may not even be detectable. Direct measures of trade-offs are thus complicated, and indirect means of identifying trade-offs may often provide the only feasible measures.