Bibliography Record
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Kikuchi, Mumi; Silva, Vera Maria Ferreira da; Rosas, Fernando César Weber; Souza, Diogo; Miyazaki, Nobuyuki
(detail)
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2012 |
The implications of turning behaviour performed by Amazonian manatees after release into the wild.
Journal of Ethology 30(1): 187-190. 1 tab. 2 figs. DOI:10.1007/s10164-011-0290-0. Jan. 2012.
–ABSTRACT: Sirenians have dichromatic colour vision and tactile hairs but have not developed underwater echolocation. Amazonian manatees (Trichechus inunguis) live in turbid water and it has been unclear how they understand their surroundings. In this study, we recorded the 3D movements of two captive-raised Amazonian manatees. The results revealed that the manatees always swam in a circular pattern. Both animals used slower, narrower turning motions as they approached the flooded forests, which are abundant in aquatic vegetation. Therefore, we suggest that these two manatees swam in a circular pattern to detect all directions of their surroundings especially using sensitive facial bristles.
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Related Index Records (3)
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Behavior, Investigative, and Sense Perception
(SEE ALSO: Sense Organs; Sound Production)
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2012 |
Kikuchi et al. (TI; turning behavior; vision and tactile hairs) |
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Sense Organs
(SEE ALSO: Behavior, Investigative, and Sense Perception; Brain and Nervous System; Digestive System; Skeleton; Sound Production)
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2012 |
Kikuchi et al. (TI; turning behavior; vision and tactile hairs) |
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Trichechus inunguis (Natterer in von Pelzeln, 1883) Thomas and Lydekker, 1897
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2012 |
Kikuchi et al. (turning behavior; vision and tactile hairs) |
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