Field experiments on duration and precision of grey and red squirrel spatial memory
Field experiments on duration and precision of grey and red squirrel spatial memory
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DOI：
10.1006/anbe.1996.0528
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发表时间：
1997-10
期刊：
影响因子：
2.5
通讯作者：
I. Macdonald
中科院分区：
文献类型：
--
作者：
I. Macdonald
自然条件下的松鼠空间记忆实验表明，灰松鼠（Sciurus carolinensis）能够利用短距离视觉线索重新定位精确的空间目标。这些目标的形式埋的食物，类似于自然缓存网站，并搬迁到5厘米内的所有尝试的62.5%后，保留间隔20天。在更长的保留间隔（43和62天）后，可以证明一些回忆。这些结果表明，灰松鼠的空间记忆是足够准确，以支持一个成功的检索策略。将同样的方法应用于红松鼠种群，即不依赖储存食物的松鼠，表明它们的空间记忆不像认知功能的适应性专门化假设所预测的那样持久。
Field experiments on squirrel spatial memory under naturalistic conditions showed that grey squirrels, Sciurus carolinensisare capable of relocating precise spatial goals using short range visual cues. These goals were in the form of buried food, similar to natural cache sites, and were relocated to within 5 cm in 62.5% of all attempts after a retention interval of 20 days. Some recall could be demonstrated after more protracted retention intervals (43 and 62 days). These results suggest that grey squirrels' spatial memory is accurate enough to support a successful retrieval strategy. Application of one of the same methods to a population of red squirrels, Sciurus vulgariswhich is not as reliant on stored food, suggested that their spatial memory is less long lasting as predicted by the adaptive specialization hypothesis of cognitive function.Copyright 1997 The Association for the Study of Animal Behaviour1997The Association for the Study of Animal Behaviour