Use of electrorecption during foraging by the Australian lungfish
Article Abstract:
Many animals use passive electroreception to locate hidden prey. The Australian lungfish has ampullary organs which project to areas of the brain that are known to process electrosensory information. Food locating behavior in the Australian lungfish was characterized and an experiment aimed to quantify the effects of manipulating electrical and olfactory stimuli from live prey. It was found that the Australian lungfish was able to perceive weak electric fields around living animals and is likely to use this information when foraging.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1999
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Recognition of contentment call spectral characteristics by mallard ducklings: evidence for a consistent perceptual process
Article Abstract:
The recognition of contentment calls by mallard ducklings, Anas platyrhynchos, depends on changes in the spectral characteristics of the distress calls and perceptual processing. The mallard ducklings use probability based perceptual processing of acoustic stimuli for the recognition of species-typical calls. The processing of spectral information is based on absolute frequency, which helps in perception of contentment calls. Dominant frequency enables the ducklings to recognize contentment or distress calls.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1993
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An experimental study of behavioural group size effects in tammar wallabies, Macropus eugenii
Article Abstract:
When animals which congregate together, the amount of time they apportion to social and nonsocial activities changes. Research models of foraging and vigilance group sizes generally predict a nonlinear relationship between time allocated to vigilance and/or foraging. A new study of tammar wallabies investigates behavioural group size effects. It is shown that the wallabies walked less and lay down more when group size increased and suggests changes in perceived predation risk.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1999
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