Constraints on Social Transmission of Food Selection by Roof Rats, Rattus rattus
The social transmission of food information by roof rats was investigated using three transmitting pathways: horizontal--unrelated adult to adult, oblique--unrelated adult to pup, and vertical--mother to pups. The obsercer was given a two--choice perference test between two novel diets after it inte...
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| Format: | Article in Journal/Newspaper |
| Language: | Chinese |
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臺北市:國立臺灣大學動物學系
2000
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| Online Access: | http://ntur.lib.ntu.edu.tw/handle/246246/20060927114817242606 http://ntur.lib.ntu.edu.tw/bitstream/246246/20060927114817242606/1/11-2-3.pdf |
| Summary: | The social transmission of food information by roof rats was investigated using three transmitting pathways: horizontal--unrelated adult to adult, oblique--unrelated adult to pup, and vertical--mother to pups. The obsercer was given a two--choice perference test between two novel diets after it interacted with a demonstrator who had one type of diet. We found that observers showed a significantly higher preference for the diet that demonstrators had consumed in vertical and pblique transmission. Oblique social those od Norway rats, it appears that the capacity for social transmission of roof rats became constrained when the obsercers aged. This could be related to ecological life histories. i.e., opportunisite feeding strategies and social group size. |
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