During the past decade, larval dragonflies and damselflies (Insecta: Odonata) have been the
subjects for very productive ecological research. Descriptive field work, enclosure …

Thirteen pairs of neighbouring Calopteryx maculata (Odonata: Calopterygidae) males were
manipulated such that members of each pair became residents in the same territory, thereby …

The relationship between body size and fitness components in odonates was examined
using a meta‐analysis of 33 published studies. There was a positive and significant overall …

Although complex life cycles are widespread, we know little about how constraints in the
larval stage influence adult fitness. Most models assume a tight coupling of larval conditions …

Interactive effects of one species on another may simultaneously influence mortality, growth,
and fecundity. To quantify the strength of an interaction between two species, we must …

Time constraints, imposed by seasonality, are common to life histories. Recent theory in
evolutionary ecology predicts independent behavioral and life history responses to such …

Problems in species recognition are thought to affect the evolution of secondary sexual
characters mainly through avoidance of maladaptive hybridization. Another, but much less …

Sexual differences in body size are widespread among animals, and various explanations
for the evolution and maintenance of sexual size dimorphism have been proposed. We …

I review methodological problems that can lead to false evidence for selection on secondary
sexual characters and present a study of selection in rubyspot damselflies (Hetaerina …

The estimation of the relationship between phenotype and fitness in natural populations is
constrained by the distribution of phenotypes available for selection to act on. Because …