An historical discussion is provided of the intellectual trends that caused nineteenth century
interdisciplinary studies of physics and psychobiology by leading scientists such as …

Habitat selection, and its associated density and frequency-dependent evolution, has a
profound influence on such vital phenomena as population regulation, species interactions …

It is argued that alternate prey species in the diet of a food-limited generalist predator should
reduce each other's equilibrial abundances, whether or not they directly compete. Such …

The process whereby input patterns are transformed and stored by competitive cellular
networks is considered. This process arises in such diverse subjects as the short-term …

These notes are, for the most part, the result of a course I taught at the University of Arizona
during the Spring of 1977. Their main purpose is to inves tigate the effect that delays (of …

The development of mechanistic, predictive ecological theory will entail the explicit inclusion
of organismal tradeoffs, of environmental constraints, and of the basic mechanisms of …

Consideration of competition, re source utilization, niche differentia tion, and coexistence
among ecologi cally similar species has been a central focus in ecology for the last thirty …

Determining the fitness of specific microbial genotypes has extensive application in
microbial genetics, evolution, and biotechnology. While estimates from growth curves are …

Both theory and empirical information support the conclusion that most density—dependent
change occurs at high population levels (close to the carrying capacity) for species with life …

Density‐dependence is a key concept in population dynamics. Here, we review how body
mass and demographic parameters vary with population density in large herbivores. The …