Shelter preference in the Marmorkrebs (marbled crayfish)
Shelter preference in the Marmorkrebs (marbled crayfish)
复制标题
Marmorkrebs（大理石纹小龙虾）的栖息地偏好
DOI：
10.1163/1568539x-00003399
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发表时间：
2016
期刊：
影响因子：
1.3
通讯作者：
Takahashi K. and Nagayama T.
中科院分区：
文献类型：
--
作者：
Watanabe Susumu;Momohara Yuto;Minami Hiroki and Nagayama Toshiki;Takahashi K. and Nagayama T.
对于许多动物来说，庇护所是躲避捕食者的宝贵来源。了解获得足够的庇护所对于理解动物的社会互动很重要。对Marmorkrebs(大理石纹小龙虾)使用的避难所类型的偏好进行了行为分析。每只小龙虾被要求在四种不同内径的聚氯乙烯管(XL、L、M和S)之间进行选择。测量了在每个避难所花费的时间和小龙虾进入每个避难所的次数。小龙虾的喜好等级为XL=L。我们的实验有力地表明，小龙虾首先根据入口的直径选择庇护所，然后根据庇护所的长度选择庇护所。小龙虾在光照条件下通过视觉线索识别足够的庇护所，在黑暗条件下利用触角的触觉线索识别足够的庇护所。
For many animals, shelters are valuable source to hide from predators. To know acquisition of adequate shelter is important to understand social interactions of animals. Preferences for types of shelter used by the Marmorkrebs (marbled crayfish) were analysed behaviourally. Individual crayfish were presented with a choice between two PVC pipes with four different internal diameters (XL, L, M and S). The time spent in each shelter and the number of times crayfish entered each shelter were measured. Preference ranks of crayfish were XL = L = or > M > S. Our experiments strongly suggested that crayfish chose shelters based first on the diameter of the entrance, and then based on the length of the shelter. Crayfish recognised adequate shelters by visual cues under light conditions and utilised tactile cues from their antennae under dark conditions.