Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 3 of 3
Full-Text Articles in Entire DC Network
Reproductive Constraints And The Evolution Of Life Histories With Indeterminate Growth, Eric Charnov, Thomas Turner, Kirk Winemiller
Reproductive Constraints And The Evolution Of Life Histories With Indeterminate Growth, Eric Charnov, Thomas Turner, Kirk Winemiller
Biology Faculty & Staff Publications
This article develops a new evolutionary model for life histories by combining a new production-growth model with some general, yet specific, constraints on reproductive allocation, and by allowing natural selection to adjust the age of first breeding and the metabolic/productive capacity of cells. The optimal life histories correctly predict the numeric value of dimensionless numbers that combine maturation age (size), mortality, and reproductive allocation. The life-history prediction also yields a new lifetime growth model for body mass under indeterminate growth and predicts that the fastest growth rate will be near the size at first reproduction. Table 1 is a glossary …
Evolution Of Life History Variation Among Female Mammals, Eric Charnov
Evolution Of Life History Variation Among Female Mammals, Eric Charnov
Biology Faculty & Staff Publications
A unified approach is developed for the evolutionary structure of mammalian life histories; it blends together three basic components (individual growth or production rate as a function of body size, natural selection on age of maturity, and stable demography) to predict both the powers and the intercepts of the scaling allometry of life history variables to adult size. The theory also predicts the signs (+, -) of the correlations between life history variables when body size is held constant. Finally, the approach allows us to eliminate body size to predict the dimensionless relationships between the life history variables themselves.
Evolution Of Life History Parameters In Animals With Indeterminate Growth, Particularly Fish, Eric Charnov, David Berrigan
Evolution Of Life History Parameters In Animals With Indeterminate Growth, Particularly Fish, Eric Charnov, David Berrigan
Biology Faculty & Staff Publications
Optimal life history theory is used to understand the Beverton-Holt dimensionless numbers for fish life histories