| microhabitat selection by three common bird species of montane farmlands in northern greece. | common farmland birds are declining throughout europe; however, marginal farmlands that escaped intensification or land abandonment remain a haven for farmland species in some mediterranean mountains. the purpose of this study is to identify the most important anthropogenic microhabitat characteristics for red-backed shrike (lanius collurio), corn bunting (miliaria calandra) and common whitethroat (sylvia communis) in three such areas within the newly established northern pindos national park. w ... | 2009 | 19705197 |
| egg phenotype differentiation in sympatric cuckoo cuculus canorus gentes. | the brood parasitic common cuckoo cuculus canorus consists of gentes, which typically parasitize only a single host species whose eggs they often mimic. where multiple cuckoo gentes co-exist in sympatry, we may expect variable but generally poorer mimicry because of host switches or inter-gens gene flow via males if these also contribute to egg phenotypes. here, we investigated egg trait differentiation and mimicry in three cuckoo gentes parasitizing great reed warblers acrocephalus arundinaceus ... | 2010 | 20345810 |
| the genus biuterina fuhrmann, 1902 (cestoda, paruterinidae) in the old world: redescriptions of three species from palaearctic passeriformes. | the syntypes of biuterina passerina fuhrmann, 1908 from alauda arvensis and galerida cristata (passeriformes, alaudidae) from an unknown locality are redescribed. b. fuhrmanni schmelz, 1941 is redescribed on the basis of its syntypes from emberiza aureola from china; its type-material contains, in addition to a scolex and pre-gravid and gravid fragments of biuterina, fragments of mature proglottides from a dilepidid cestode, which were erroneously used in the original description. specimens, whi ... | 2004 | 14739677 |
| measuring the functional responses of farmland birds: an example for a declining seed-feeding bunting. | 1. many farmland bird species have undergone significant declines. it is important to predict the effect of agricultural change on these birds and their response to conservation measures. this requirement could be met by mechanistic models that predict population size from the optimal foraging behaviour and fates of individuals within populations. a key component of these models is the functional response, the relationship between food and competitor density and feeding rate. 2. this paper descr ... | 2008 | 18577020 |
| energy crops affecting farmland birds in central europe: insights from a miscanthus-dominated landscape. | the expansion of energy crops such as miscanthus miscanthus x giganteus has changed the habitat of european farmland birds. however, most studies on the subject are based in western europe. we surveyed the avian community in a sample bioenergy landscape in poland to investigate the pattern of use of the crop by birds in central europe. during a year-long survey, 80 species were noted, with 32 sighted in miscanthus. the number of bird sightings was negatively correlated with the area covered by m ... | 2019 | 30636777 |