Dally Joanna M, Emery Nathan J, Clayton Nicola S
Sub-department of Animal Behavior, University of Cambridge, Cambridge, CB3 8AA, UK.
Science. 2006 Jun 16;312(5780):1662-5. doi: 10.1126/science.1126539. Epub 2006 May 18.
Western scrub-jays (Aphelocoma californica) hide food caches for future consumption, steal others' caches, and engage in tactics to minimize the chance that their own caches will be stolen. We show that scrub-jays remember which individual watched them during particular caching events and alter their recaching behavior accordingly. We found no evidence to suggest that a storer's use of cache protection tactics is cued by the observer's behavior.
西丛鸦（Aphelocoma californica）会为日后食用而隐藏食物储备，会偷窃其他同类的储备，还会采取策略将自己储备被偷的可能性降至最低。我们发现，西丛鸦能记住在特定储存事件中是哪个个体观看了它们，并据此改变重新储存行为。我们没有找到证据表明储存者对储备保护策略的运用是由观察者的行为所提示的。
