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首页> 外文期刊>Behaviour >More opportunities to peck for identical food availability increases foraging efficiency in pigeons
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More opportunities to peck for identical food availability increases foraging efficiency in pigeons

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摘要

The opportunity and the information available to secure food resources drives foraging behaviour. We tested how inconsistent hole-food pairings and coverings could alter foraging performance, even when food availability is held constant. In our first experiment, we exposed pigeons (Columba livia) to a board in which each of the 60 covered holes contained one food item and to another board in which only one third of the 180 covered holes randomly contained one food item. In a second experiment, only the 60-hole board was used and the holes were not covered. The pigeons increased their body weight, gave fewer pecks per hole, revisited holes less often, and inspected fewer adjacent holes with 180 rather than 60 covered holes while eating similar amounts. However, their pecks were disproportionately higher near the edges of the board with 60 covered holes. This behaviour was not evident in the second experiment, when the food items were visible and individuals could know where food was available. Thus, the information about food location may drive foraging behaviour more directly than the information about food availability.

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