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Hodotermes workers conduct both day and night harvesting expeditions in the open air.
The harvesting direction taken from the foraging hole is determined at the beginning of the foraging period.
Two systems of aboveground orientation can be employed: optical menotaxis and...
Two extreme possibilities in the evolution of temporal castes can be envisaged. First, workers can undergo changes in responsiveness to various kinds of stimuli in a strongly discordant manner as they grow older, so that each task is addressed by a distinctly different frequency...
The physical characteristics of the drumming signal produced by workers of carpenter ants (Camponotus herculeanus L.) inside their nests, constructed in trees, were investigated. Typical elements of the inner nest structure are lamellae of about 50–500 cm2 derived from gnawing out the soft...
The communicative functions of agonistic behaviour patterns of squirrel monkeys (Saimiri sciureus) are investigated in automated telestimulation experiments. The aim of this paper is to reveal how the context of a behavioural event-expressed in terms of the participating animals-has an influence...
This paper is concerned with the idea that the song repertoires of passerine birds are an evolutionary adaptation to reduce habituation in listeners. In an experiment involving 16 territorial males I played either a single song or a repertoire of songs for 15 two-min trials through a single...
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