Spatial accuracy in food-storing and nonstoring birds
Article Abstract:
Food storing birds appear to have a better memory for spatial locations than do birds that are not food storers. This is shown by an experiment involving Parus ater, or coal tits, which store food, and comparing their performance with Parus caerulus, or blue tits, and Parus major, or great tits, which do not store food. Storers were better in general at remembering locations, and were less affected by distractors than were nonstorers. The birds were shown one image, and then between two and four images, and had to find the first image they had been shown.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1999
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Obtaining high status and exclusive home ranges
Article Abstract:
Territorial setting behavior of the lizard Anolis aeneus was investigated by observing newly released juveniles in the field. Results reveal that lizards settling in sparsely settled areas had better chances of acquiring exclusive ranges. On the other hand, individuals settling on areas with higher juvenile density has to fight for exclusive territories and a dominant position in the hierarchy. The number of fights seems to be a better determinant of territory acquisition than the outcome of the fights.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1998
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Perceptual tuning to frequency characteristics of territorial signals in collared doves
Article Abstract:
Research was conducted to examine the influence of the relative and absolute aspects of frequency modulations on the responsiveness to perch coos of territorial male collared doves, Streptopelia decaocto. A sample of 100 territorial pairs of collared doves were utilized in the annual multiple playback experiments from 1994 to 1998. Results indicate that frequency modulations were signals of quality and that their meaning should be taken from a territorial context.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1998
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