Publications

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chewing lice (phthiraptera) found on songbirds (passeriformes) in turkey.objective: this study was performed to detect chewing lice species found on the songbirds at lake kuyucuk bird ringing station in the kars province located in eastern turkey. methods: chewing lice were collected from songbirds captured between september and october 2009. fifty-one birds belonging to 22 species and 16 genera from 10 families were examined for the louse. results: eleven of 51 birds (21.57%) belonging to 7 species; were infested with at least one chewing louse species. the collecte ...201121618190
hybridization and apparent hybridization between meadow pipit (anthus pratensis) and water pipit (a. spinoletta). 200212471675
surviving at high elevations: an inter- and intra-specific analysis in a mountain bird community.elevation represents an important selection agent on self-maintenance traits and correlated life histories in birds, but no study has analysed whether life-history variation along this environmental cline is consistent among and within species. in a sympatric community of passerines, we analysed how the average adult survival of 25 open-habitat species varied with their elevational distribution and how adult survival varied with elevation at the intra-specific level. for such purpose, we estimat ...201728321514
population trends of central european montane birds provide evidence for adverse impacts of climate change on high-altitude species.climate change is among the most important global threats to biodiversity and mountain areas are supposed to be under especially high pressure. although recent modelling studies suggest considerable future range contractions of montane species accompanied with increased extinction risk, data allowing to test actual population consequences of the observed climate changes and identifying traits associated to their adverse impacts are very scarce. to fill this knowledge gap, we estimated long-term ...201526426901
nestling provisioning in water pipits (anthus spinoletta): do parents go for specific nutrients or profitable prey?in this study, we investigated whether free-living insectivorous water pipits (anthus spinoletta) choose prey according to biochemical quality as measured by protein, lipid, carbohydrate, energy and water contents and/or according to profitability as measured by density, size and catchability. food preference - expressed in relation to availability - is estimated for 22 arthropod taxa (families and orders). uni- and multivariate statistics detected no relationships between food preference and nu ...199928308300
singing and mating success in water pipits: one specific song element makes all the difference.positive correlations between male vocalization and reproductive success have been documented for many animal species. they are usually based on differences between males in vocalization rate, duration or repertoire size. here, we present probably the first field study linking differences in territorial overlap and mating status to differences in a single, clearly definable song element, the 'snarr'. male water pipits, anthus spinoletta, with high snarr scores were mated more often than males wi ...19989641992
the importance of food quantity and quality for reproductive performance in alpine water pipits (anthus spinoletta).studies relating reproduction to food availability are usually restricted to food quantity, but ignore food quality and the effects of habitat structure on obtaining the food. this is particularly true for insectivorous birds. in this study we relate measures of reproductive success, time of reproduction and nestling size of water pipits (anthus spinoletta) to biomass, taxonomic composition and nutritional content of available food, and to vegetation structure and distance to feeding sites. clut ...199728307170
[proctophyllodes schwerinensis sp. n., a new feather mite of anthus spinoletta]. 19827149334
habitat, climate, topography and management differently affect occurrence in declining avian species: implications for conservation in changing environments.climate and land-use change are the most severe threats to biodiversity; their effects are often intermingled, also with those of landscape/habitat management. birds of mountain grassland are declining throughout europe. disentangling climate effects from those of land-cover and management on their occurrence is essential to identify distribution drivers, potential impacts of climate/land-use changes, and effective conservation strategies. we investigated the occurrence of water pipit (elevation ...202032721754
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