Seligmann Hervé
Dept. of Ecology & Evolution, The University of Chicago, Illinois 60637-1537, USA.
Laterality. 2002 Jul;7(3):277-83. doi: 10.1080/13576500244000067.
This study reports an association of behavioural and morphological directional asymmetries at the level of individual lizards. I counted all subdigital lamellae (scales) under the toes of 57 Hoplodactylus duvaucelii on North Brother Island, New Zealand. Geckos released first from the substrate the hindlimb that had fewer subdigital lamellae than the other hindlimb. Analyses of data from the literature show that in geckos, clinging ability increases with the number of subdigital lamellae, especially after variation in body mass is accounted for. Assuming that grasping (an active process) and clinging (a passive process) abilities are correlated, the association of behavioural and morphological asymmetry among individuals could be interpreted in functional terms: geckos lift first from the substrate the hindlimb that has the lowest ability to stick to the substrate.
本研究报告了个体蜥蜴水平上行为和形态方向不对称之间的关联。我对新西兰北兄弟岛上57只杜氏壁虎（Hoplodactylus duvaucelii）脚趾下的所有趾下鳞片进行了计数。壁虎首先从基质上抬起的后肢，其趾下鳞片比另一条后肢少。对文献数据的分析表明，在壁虎中，附着能力随着趾下鳞片数量的增加而增强，尤其是在考虑体重变化之后。假设抓握（一个主动过程）和附着（一个被动过程）能力相关，个体之间行为和形态不对称的关联可以从功能角度来解释：壁虎首先从基质上抬起的后肢，其附着在基质上的能力最低。
