The standard view of adaptation to larval crowding in fruitflies, built on results from 25 years of multiple experimental evolution studies on Drosophila melanogaster, was that enhanced competitive ability evolves primarily ...

The locomotor activity of the field mouse Mus booduga was monitored under continuous darkness (DD) for extended periods of 275 to 388 days. Free-running period (tau) activity time (alpha) and rest time (rho) were computed ...

Almost all organisms ranging from unicellular protists to mammals were found to show biological rhythms. Many workers have performed various kinds of experiment to understand the mechanism as well as to find the origin of ...

A population of the fruit fly Drosophila melanogaster was raised in periodic light/dark (LD) cycles of 12:12 h for about 35 generations. Eclosion, locomotor activity, and oviposition were found to be rhythmic in these ...

The role of circadian clocks in timing daily behaviors is widely acknowledged, and while empirical evidence suggests that clock period is correlated with the preferred phase of a rhythmic behavior (chronotype), other clock ...

Age-related changes in circadian rhythms have been studied in several model organisms including fruit flies Drosophila melanogaster. Although a general trend of period (tau) lengthening, reduction in rhythm strength and ...

We report period response curves (tauRC) for two nocturnal Murid species from India, Mus booduga and Mus platythrix. We further discuss the method of phase shift estimation in the presence of tau-changes, because such ...

Locomotor activity of the surface-dwelling millipede Syngalobolus sp. was recorded under laboratory conditions. Infra-red diodes were used to detect the locomotor activity in an oval shaped chamber, which was connected ...

This paper describes experiments on the locomotor activity rhythm of queens of the ant species Camponotus compressus, which were performed to investigate the consequences of mating on circadian clocks. Locomotor activity ...

Insects including the fruit fly Drosophila melanogaster are under intense pressure to develop rapidly because they inhabit ephemeral habitats. We have previously shown that when selection for faster development was ...