Evolution articles

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Perspective: the theories of Fisher and Wright in the context of metapopulations: when nature does many small experiments.
December 1, 1998 ... Two major theories of adaptive evolution were developed early in this century: Wright's shifting balance theory (SBT) and Fisher's large population size theory (LST). Although the mathematical details of these theories are largely in...

Conspiratorial whispers and conspicuous displays: games of signal detection.
December 1, 1998 ... Animal signals are traits that serve to influence the behavior of others. Thus, the first requirement of an effective signal is that it should be easily detectable by its intended recipients, ideally while going undetected by unwanted...

Logistic regression for empirical studies of multivariate selection.
December 1, 1998 ... Natural selection is a fundamental mechanism behind the Darwinian theory of biological evolution (Darwin 1859; Haldane 1954; Fisher 1958; Endler 1986). In particular, natural and sexual selection are thought to be the primary forces behind...

Inbreeding depression in gynodiocecious Lobelia siphilitica: among-family differences override between-morph differences.
December 1, 1998 ... Inbreeding depression, the reduced fitness of progeny derived from inbreeding relative to outcrossing, has received much attention in recent decades. According to the "partial dominance" hypothesis, inbreeding depression is a consequence of...

Pairwise versus diffuse natural selection and the multiple herbivores of scarlet gilia, Ipomopsis aggregata.
December 1, 1998 ... A central question in plant evolutionary ecology is how plants and animals coevolve. Despite a wide theoretical interest in coevolution (reviewed in Thompson 1994), we have little empirical information on how interacting species impose...