How habitat features shape ground squirrel (Urocitellus beldingi) navigation.
How habitat features shape ground squirrel (Urocitellus beldingi) navigation.
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栖息地特征如何影响地松鼠（Urocitellus beldingi）的导航。
DOI：
10.1037/a0019147
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
Mateo,JillM
中科院分区：
文献类型：
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作者：
Bruck,JasonN;Mateo,JillM
本次调查的目的是确定是否Belding的地松鼠（Urocitellus beldingi）从丰富的信标的地区执行不同的任务，空间记忆与松鼠从信标薄的地区。为了评估环境经验在空间记忆中的作用，将在野外有几天经验的野生松鼠与在实验室出生的松鼠进行了比较，并且没有在原始栖息地的经验。在两个夏天里，从信号密集和信号稀疏的地区捕获的松鼠在一个散布着信号的径向迷宫中进行了测试，使用试验次数作为空间记忆的衡量标准。为了评估地标导航的效果，在第2年，青少年被阻止看到迷宫区域之外。在这两年的松鼠从信标密集的人口达到标准快于松鼠从信标薄的人口，和弱饲养效果是在1年。尽管成年人的空间技能存在性别差异，但在迷宫中男性和女性之间没有差异。这表明了美国年轻人导航策略的变化。beldingi，并强调有必要评估空间偏好作为人口或生态的功能，除了物种和性别。（PsycINFO数据库记录（c）2016阿帕，保留所有权利）
The purpose of this investigation was to determine whether Belding's ground squirrels (Urocitellus beldingi) from areas rich in beacons perform differently in a task of spatial memory compared with squirrels from beacon-thin areas. To assess the role of environmental experience in spatial memory, wild-born squirrels with several days of experience in the field were compared with squirrels born in a lab and with no experience in their original habitat. Over two summers, squirrels captured from beacon-dense and beacon-thin areas were tested in a radial maze interspersed with beacons, using number of trials to criterion as a measure of spatial memory. To evaluate the effect of landmark navigation, in year 2 juveniles were prevented from seeing outside the maze area. In both years squirrels from beacon-dense populations reached criterion faster than squirrels from beacon-thin populations, and a weak rearing effect was present in 1 year. Despite sex differences in adult spatial skills, no differences were found between males and females in the maze. This demonstrates variation in the navigation strategies of young U. beldingi, and highlights the need to evaluate spatial preferences as a function of population or ecology in addition to species and sex.(PsycINFO Database Record (c) 2016 APA, all rights reserved)