Abstract The Bosnian alpine newt ( Ichthyosaura alpestris reiseri ) is endemic to Prokoško Lake (Mt. Vranica, Bosnia & Herzegovina); its evolutionary history partially clarified and taxonomic position remains unclear. Due severe anthropogenic pressures on Mt. Vranica (fish introduction in Lake, pollution), it has been assumed that this form of Alpine extinct from the Lake. Nevertheless, som...

Abstract Background Some studies have indicated that the Horned Larks ( Eremophila alpestris ) should be considered as a species complex. Recently it split into four or clades and seven subclades based on genetic, morphological, biogeographic data. However, other aspects like song divergence not been studied several subspecies evaluated, leading to important information gaps in this group of bi...

In high-mountains, cold spells can occur at any time during the growing season and plants may be covered with snow for several days. This raises the question to what extent sexual processes are impaired by low temperatures. We tested pollen performance and fertilization capacity of high-mountain species with different elevational distribution in the European Alps (Cerastium uniflorum, Gentianel...

Early observations on the morphology of total exogastrulae from urodeles (Axolotl) had provided evidence for essential vertical signalling mechanisms in the process of neural induction. Conversely, more recent studies with anurans (Xenopus laevis) making use of molecular markers for neural-specific gene expression appear to support the idea of planar signalling as providing sufficient informati...

While little research has been done on California grassland birds, their populations are thought to be declining due to habitat loss, fragmentation, and degradation. We investigated the association between California grassland birds and their landscape-scale habitat matrix. The habitat is a mosaic of valley grassland with blue oak and coast live oak woodlands. In this study, we used logistic re...