Disruptive coloration elicited on controlled natural substrates in cuttlefish, Sepia officinalis
نویسندگان
چکیده
منابع مشابه
Disruptive coloration elicited on controlled natural substrates in cuttlefish, Sepia officinalis.
Cephalopods are known for their ability to change camouflage body patterns in response to changes in the visual background. Recent research has used artificial substrates such as checkerboards to investigate some specific visual cues that elicit the various camouflaged patterns in cuttlefish. In this study, we took information from experiments on artificial substrates and assembled a natural ro...
متن کاملAccommodation in the cuttlefish (Sepia officinalis).
We have studied natural accommodation in the eye of six specimens of cuttlefish (Sepia officinalis) as they were fed with fish and shrimp. Using infrared photoretinoscopy, we observed (1) that the resting refractive state of the cuttlefish was emmetropic or slightly hyperopic, (2) that accommodation took place only a fraction of a second before a strike and (3) that accommodation focused select...
متن کاملPerception of visual texture and the expression of disruptive camouflage by the cuttlefish, Sepia officinalis.
Juvenile cuttlefish (Sepia officinalis) camouflage themselves by changing their body pattern according to the background. This behaviour can be used to investigate visual perception in these molluscs and may also give insight into camouflage design. Edge detection is an important aspect of vision, and here we compare the body patterns that cuttlefish produced in response to checkerboard backgro...
متن کاملCamouflage during movement in the European cuttlefish (Sepia officinalis).
A moving object is considered conspicuous because of the movement itself. When moving from one background to another, even dynamic camouflage experts such as cephalopods should sacrifice their extraordinary camouflage. Therefore, minimizing detection at this stage is crucial and highly beneficial. In this study, we describe a background-matching mechanism during movement, which aids the cuttlef...
متن کاملSaccadic Movement Strategy in Common Cuttlefish (Sepia officinalis)
Most moving animals segregate their locomotion trajectories in short burst like rotations and prolonged translations, to enhance distance information from optic flow, as only translational, but not rotational optic flow holds distance information. Underwater, optic flow is a valuable source of information as it is in the terrestrial habitat, however, so far, it has gained only little attention....
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ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 2007
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.004382