Publications

the distribution and avian hosts of carnus hemapterus (diptera: milichiidae) in north america.		1973	4760633
[parasite fauna of austrian owls (strigiformes)].	during the examination of 182 owls--asio otus (51), strix aluco (44), bubo bubo (34), nyctea scandiaca (15), athene noctua (14), otus scops (9), tyto alba (4), aegolius funereus (3), glaucidium passerinum (2), asio flammeus (2), indigenous "owls" (4)--5 protozoan species, 3 trematode species, 1 cestode species, 6 nematode species, 3 acanthocephalan species, 2 acaride species and 7 insect species could be discovered. dermanyssus hirundinis was proved on the long-eared owl and carnus hemapterus on ...	1982	7165130
interspecific parasite exchange in a mixed colony of birds.	studies of avian host-parasite interactions rarely include consequences of relationships among hosts for either the host or parasite species. in this study, we examine the ectoparasitic burden of adult and nestling european bee-eaters (merops apiaster) and rock sparrows (petronia petronia) in a mixed colony. we found that (1) each bird species had its own species of lice; (2) hematophagous mites parasitized both adults and nestlings of both bird species; (3) carnus hemapterus, a common parasite ...	2003	12760636
size versus health as a cue for host choice: a test of the tasty chick hypothesis.	knowledge about how parasites choose their hosts is scarce and incomplete. recent work has primarily focused on host health (i.e. immunocompetence) whereas ecological factors have been largely neglected. here we investigate whether the immunocompetence, the nutritional condition or body size of nestling european bee-eaters merops apiaster are used as parameters for habitat choice of the haematophagous fly carnus hemapterus. we found that (i) flies consistently and nonrandomly preferred larger ne ...	2004	15267112
prolonged diapause in the ectoparasite carnus hemapterus (diptera: cyclorrhapha, acalyptratae) - how frequent is it in parasites?	prolonged diapause is usually interpreted as an adaptation to unpredictable environmental conditions and resource availability. many parasites usually face highly unpredictable environments, therefore prolonged diapause should be common among these organisms. here we examine the occurrence and frequency of prolonged diapause in the ectoparasite carnus hemapterus (diptera: cyclorrhapha, acalyptratae). we found that the studied population is polymorphic with respect to diapause duration. emergence ...	2006	16623966
[diptera fauna from the nests of birds on the volga-kama state preserve].	504 nests of 11 species of birds were examined in the volga-kama state reserve. 57,430 specimens of diptera belonging to 19 species and 13 families were collected from the nests. the schemes of the life cycle of diptera, nest-burrow parasites of birds (carnus hemapterus nitzsch, stenepteryx hirundinis l., protocalliphora azurea fallen) are given and some moments of the ecology of nonparasitic species are illustrated.	2007	134336
synchronization of host-parasite cycles by means of diapause: host influence and parasite response to involuntary host shifting.	many parasites require synchronization of their infective phases with the appearance of susceptible host individuals and, for many species, diapause is one of the mechanisms contributing to such coincidence. a variety of ecological factors, like changes in host temperature produced by involuntary host shifting (substitution of the usual host by an infrequent one), can modify host-parasite synchronization of diapausing ectoparasites of endothermic species. to understand the influence of host shif ...	2008	18752706
mixed life-history strategies in a local population of the ectoparasitic fly carnus hemapterus.	a major issue for the proper understanding of the evolution of life-cycle histories is the regulation of voltinism and its variation. diapause characteristics are known to regulate voltinism, but the underlying mechanisms are poorly understood. this paper studies diapause duration and voltinism variation in a haematophagous diptera parasitizing 2 sympatric hosts with very different breeding phenologies. we hypothesize that bivoltinism will be more frequent in carnid flies parasitizing an early b ...	2012	22716907
reproductive anatomy and fecundity estimation of the haematophagous ectoparasite carnus hemapterus.	the dynamics of host-parasite interactions depends to a large extent on the effect of host responses on parasite fitness. an increased research effort is currently being invested in the study of host influence on parasite fitness both at a population and at an individual level even though basic information (e.g. the reproductive anatomy of parasites) is frequently missing. here, we study for the first time the reproductive system of the diptera carnus hemapterus, a 2-mm long, highly mobile haema ...	2012	22015386
temperature during the free-living phase of an ectoparasite influences the emergence pattern of the infective phase.	understanding the population dynamics and co-evolution of host–parasite systems requires detailed knowledge of their phenology which, in turn, requires a deep knowledge of the effect of abiotic factors on the life cycles of organisms. temperature is known to be a key environmental influence that participates in the regulation of diapause. yet, not much is known about the effect of temperature on the free-living stages of true parasites and how it may influence host–parasite interactions. here we ...	2013	23870073
do climatic conditions affect host and parasite phenotypes differentially? a case study of magpies and great spotted cuckoos.	climatic conditions, through their effects on resource availability, may affect important life history strategies and trade-offs in animals, as well as their interactions with other organisms such as parasites. this impact may depend on species-specific pathways of development that differ even among species with similar resource requirements (e.g., avian brood parasites and their hosts). here we explore the degree of covariation between environmental-climatic conditions and nestling phenotypes ( ...	2014	24078079
nest ecology of blood parasites in the european roller and its ectoparasitic carnid fly.	haemosporidian parasites are considered the most important vector-borne parasites. however, vector identity and ecology is unknown for most such host-vector-parasite systems. in this study, we employ microscopic and molecular analyses to examine haemosporidian prevalence in a migratory, cavity-nesting bird, european roller coracias garrulus, and its nidicolous blood-feeding ectoparasite carnus hemapterus. this system is unique in that the ectoparasite is confined to a near-closed environment, in ...	2016	26993083
ectoparasite activity during incubation increases microbial growth on avian eggs.	while direct detrimental effects of parasites on hosts are relatively well documented, other more subtle but potentially important effects of parasitism are yet unexplored. biological activity of ectoparasites, apart from skin injuries and blood-feeding, often results in blood remains, or parasite faeces that accumulate and modify the host environment. in this way, ectoparasite activities and remains may increase nutrient availability that may favour colonization and growth of microorganisms inc ...	2018	29332150