Anatomische Anpassungen des Atmungssystems des Apothekerskinks (Scincus scincus)

沙鱼(Scincus Scincus)是一种蜥蜴，具有非凡的能力，当浸入沙子中时，它能以游泳的方式在沙漠中以惊人的速度移动很远的距离。不同的形态、生理和行为特征使其在进化过程中很好地适应了生活在松散风沙中。在过去的几年里，我们可以阐明减摩耐磨工具和沙鱼运动的不同方面。这种令人着迷的动物仍然神秘的一个方面是呼吸。到目前为止，人们还不清楚沙鱼是如何在深至半米深的细小松散的风沙中呼吸的。为了阐明这个问题，我们计划测量沙鱼的耗氧量，这取决于它的运动活动。此外，我们还想确定风沙气体交换时间的定量参数。此外，我们想要澄清肺和呼吸道的确切形态，以了解是否已经发展出特殊的形态适应。所有这些调查都将在沙鱼物种以及与之密切相关的蜥蜴Eumeces schneideri上进行，这种蜥蜴不会游泳。这种比较应该能够确定因适应沙泳而引起的具体适应。

The sandfish (Scincus scincus) is a lizard having the remarkable ability to move in desert sand in a swimming-like fashion over significant distances at remarkable velocities when submerged in sand. It is well adapted through evolution to live in loose aeolian sand by different morphological, physiological and behavioral features. In the last years we could clarify different aspects of the friction reducing and abrasion resistant integument and of the locomotion of the sandfish. One aspect of this fascinating animal that is still enigmatic is the breathing. It is till now unclear how the sandfish manages to breath in fine, loose aeolian sand at depth down to about half a meter. To shine light on this question we plan to measure the oxygen consumption of the sandfish dependent on its locomotive activity. Furthermore we want to determine quantitative parameters for the hinterance of gas exchange of the aeolian sand. Additionally we would like to clarify the exact morphology of the lungs and of the respiratory duct in order to see if special morphological adaptations have developed. All these investigations will be carried out on sandfish species as well as on the closely related lizard Eumeces schneiderii, which does not perform sand swimming. This comparison should allow determination of specific adaptations caused by the adaptation to sand swimming.