Insects are by far the most diverse group of organisms on Earth; estimates of their current
diversity range as high as 30 million species (58). A large fraction of these species feed on …

Seven hypotheses, including the 'Resource Concentration Hypothesis' and the 'Enemies
Hypothesis', have been put forward to explain why fewer specialist insects are found on host …

In order to provide a general framework within which the dispersal of cells or organisms can
be studied, we introduce two stochastic processes that model the major modes of dispersal …

This paper develops a procedure for quantifying movement sequences in terms of move
length and turning angle probability distributions. By assuming that movement is a …

The different searching tactics of passerine birds foraging for arthropods among the foliage
of a northern hardwoods forest result in the capture of different kinds of prey. Five major …

Many herbivorous insects have generalized diets over the species' entire geographical
ranges but they function as specialists with restricted diets in local communities. Local …

The slow‐growth–high‐mortality hypothesis predicts that prolonged development in
herbivorous insects results in greater exposure to natural enemies and a subsequent …

Host-plant selection by phytophagous insects is largely determined by adult insects
choosing the developmental location of offspring. Knowledge of natural selection leads to …

Over the past 40 years there has been an extraordinary effort to understand the relationships
of plant-feeding insects and their hosts. Anyone who is studying such problems knows the …

Understanding the mechanisms of population size regulation is of vital importance to both
the pure and applied ecologist. Throughout the history of ecology one school of thought has …