2. Behavioral Biology TALKS - Deutsche Zoologische Gesellschaft
2. Behavioral Biology TALKS - Deutsche Zoologische Gesellschaft
2. Behavioral Biology TALKS - Deutsche Zoologische Gesellschaft
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examined specimens from most major cryptodiran taxa. Based on this comparison we<br />
provide some insights into a possible evolution of the cryptodiran respiratory<br />
apparatus and also discuss its value in systematics.<br />
�70 Falk Esser A 703 / 14:15<br />
Characterization of waterextraction from moist soil by moisture harvesting lizards<br />
Author(s): Falk Esser 1 , Philipp Comanns 1 , Werner Baumgartner 1<br />
Affiliation: 1 RWTH Aachen Biologie II, Zelluläre Neurobionik<br />
A theory how Moloch horridus and Phrynosoma cornutum tackle their daily water<br />
demand is introduced. It is shown that Moloch horridus and Phrynosoma cornutum<br />
are able to perform moisture harvesting by microornamentation on the<br />
Oberhäutchen and capillary channels formed by scale hinges. Sherbrooke (1993)<br />
observed that Moloch showed a certain behavior in the early morning hours by<br />
pouring moist soil on to its back and rubbing its chest into the ground (Comanns et al.<br />
2011, Sherbrooke 1993, Withers 1993). Imitating this early morning this behavior, the<br />
specimen´s integument was replicated with epoxy resin, with which experiments<br />
were conducted to test whether the specimen are able to extract water from moist<br />
soil. In the experiments the capillary forces of sand and the integument were<br />
measured and compared, moist sand was applied on the replicas and the behavior of<br />
applied water droplets was recorded. The experimental parameters where adapted<br />
so that they imitated the early morning behavior, shown by Moloch horridus. The<br />
experiments provide good evidence that under certain circumstances the specimen<br />
are able to extract enough water from the moist sand with their sand angel<br />
perfomance to cover their daily water demand.<br />
�71 Nina Furchheim A 703 / 14:30<br />
Size matters when living in an intertidal washing machine: the smallest known<br />
brachiopod Gwynia capsula<br />
Authors: Nina Furchheim 1 , Anne Kaulfuss 1 , Carsten Lüter 1<br />
Affiliation: 1 Museum für Naturkunde, Berlin<br />
Gwynia capsula (Terebratulida, Gwynioidea) is one of the most unusual brachiopod<br />
species described so far. It is the smallest of all known living brachiopods (
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