Holenweg Peter

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Abstract: I investigated dispersal of adult water frogs between local ponds containing Rana lessonae, R. ridibunda and their hybridogenetic associate R. esculenta. Recent models indicate a strong influence of species specific dispersal on the dynamics of such mixed populations. However, empirical data on dispersal are still rare and populations are often(More)
A liquid-membrane microelectrode (≤1 μm tip diameter) using macrotetrolide antibiotics as ion-selective components is described. The electrode shows selectivities of NH 4 + over K+, Na+ and H+ of 3.8, 100 and 150, respectively. The stability and reproducibility of the sensor signal and the response time are determined in solutions with a typical(More)
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