FINDING GOOD FOOD AND AVOIDING BAD FOOD - DOES IT HELP TO ASSOCIATE WITH EXPERIENCED FLOCKMATES
FINDING GOOD FOOD AND AVOIDING BAD FOOD - DOES IT HELP TO ASSOCIATE WITH EXPERIENCED FLOCKMATES
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DOI：
10.1006/anbe.1994.1373
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发表时间：
1994-12-01
期刊：
影响因子：
2.5
通讯作者：
AVERY, ML
中科院分区：
文献类型：
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作者：
AVERY, ML
成群的雄性红翅黑鸟，Agelaius phoeniceus，观察到他们觅食的9 × 12米耕作的地块内的0.2公顷的飞行笔。其中一块地种的是用驱鸟剂甲硫威处理过的水稻种子，另一块地种的是未经处理的水稻。当每个鸟群表现出对处理地块的一致回避时，12只鸟群中有经验的鸟的数量依次减少到6只、3只、1只和0只。当至少有一只有经验的鸟存在时，幼稚鸟使用未处理地块的潜伏期和在处理地块中觅食所花费的时间大大减少。在整个4天的试验中，幼稚鸟对处理过的种子地块的使用大于有经验的鸟。幼稚的鸟群成员通过跟随有经验的鸟到未处理的种子地块而受益，从而比没有经验的鸟存在时更快地发现和使用它。然而，天真的鸟儿并没有避开处理过的种子，许多鸟吃了处理过的种子而生病。因此，与有经验的鸟类交往的好处是学习在哪里觅食，而不是在哪里躲避。
Flocks of male red-winged blackbirds, Agelaius phoeniceus, were observed as they foraged on 9 x 12-m tilled plots within a 0.2-ha flight pen. One of the plots contained rice seed treated with the bird repellent methiocarb; a second plot received untreated rice. When each flock displayed a consistent avoidance of the treated plot, the number of experienced birds in the 12-bird flock was sequentially reduced to six, three, one and zero. Latency to use of the untreated plot and time spent foraging in the treated plot by naive birds were greatly reduced when at least one experienced bird was present. Throughout the 4-day trials, use of the treated seed plot by naive birds was greater than that of experienced birds. The naive flock members benefited by following experienced birds to the untreated seed plot, thereby discovering and using it more quickly than when no experienced birds were present. The naive birds did not avoid the treated seed plot, however, and many ate the treated seed and became sick. Thus, the benefit of associating with experienced birds was in learning where to forage, not where to avoid.