| [disseminated aspergillosis in a loon]. | a case is described of generalized mycosis in a diver of the species gavia arctica, caused by the fungus aspergillus fumigatus. the organism of the bird was so much damaged that the bird died. there is a detailed description of the mycological characteristics of the invading agent and a description of the histopathological changes in the primarily affected organ -- the lungs. further, a survey is presented of the orders of freely living birds and birds in captivity in which aspergillosis has bee ... | 1979 | 117594 |
| detection of antibodies to alphaviruses and flaviviruses in some migratory birds of the danube delta. | data are reported on the presence of antibodies to some group a(alphavirus) b(flavivirus) arboviruses in 8 species of migratory birds (ardea cinerea, plegadis falcinellus, anas querquedula, anser albifrons, gavia arctica, fulica atra, larus minutes and and phalacrocorax corbo) of the danube delta. | 1978 | 676070 |
| serological investigations concerning the presence of antibodies to arboviruses in wild birds. | serum samples from 8 species of migratory birds (ardea cinerea, plegadis falcinellus, anas querquedula, anser albifrons, gavia arctica, fulica atra, phalacrocorax carbo, larus minutus) were tested for the presence of hemagglutination-inhibiting (hai) antibodies to alpha- and flaviviruses. hai antibodies to alphaviruses (eastern equine encephalitis, western equine encephalitis, sindbis, middelburg, semliki forest) ranging in titer from 1/20 to 1/160 were detected in 46 serum samples; 22 serum sam ... | 1984 | 6710861 |
| methylmercury and total mercury content in soft tissues of two bird species wintering in the baltic sea near gdansk, poland. | of the various forms of hg occurring in nature, (mono) methylmercury (mehg) is an especially toxic form and practically all forms of hg can be converted into mehg as a result of natural processes. total mercury (thg) and mehg were determined in tissues of two piscivorous birds: razorbill alca torda and black-throated loon gavia arctica to provide baseline data on current mercury concentrations for liver, kidneys and pectoral muscle mercury concentrations of birds which winter on the south baltic ... | 2019 | 30543952 |
| host specificity and seasonality of helminth component communities in central european grebes (podicipediformes) and loons (gaviiformes). | structure and pattern of helminth component communities parasitizing grebes and loons are poorly understood. here we analyze the prevalence, intensity and diversity of helminths in 505 czech grebes (podiceps cristatus, podiceps nigricollis, tachybaptus ruficollis) and loons (gavia arctica, gavia stellata) collected between 1962 and 2014. the species richness of helminth component communities ranged from 31±8 (p. cristatus) to 50±4 (g. stellata) species, with helminth load similar in all five hos ... | 2015 | 26008120 |
| [intestinal digeneans of gavia stellata (pontoppidan, 1763) and gavia arctica (linnaeus, 1758) from west pomerania, poland]. | in 2000 and 2006 a total of 20 divers including 15 gavia stellata and 5 gavia artica from pomeranian bay and szczecin lagoon were examined. g. stellata were found to be infected with 3 digenean species: stephanoprora pseudoechinata (olsson, 1876), cryptocotyle concava (creplin, 1825) and diplostomum gavium (guberlet, 1922). g. arctica were host to echinochasmus spinulosus (rudolphi, 1809). this is the first record of stephanoprora pseudoechinata in g. stellata and echinochasmus spinulosus in g. ... | 2008 | 19338230 |
| [nematoda of the gastrointestinal system of gavia stellata and gavia arctica (gaviidae)]. | four species of nematoda: capillaria mergi, contracaecum rudolphii, paracuaria tridentata, stegophorus stellaepolaris were detected for the first time in poland in two red-throated divers (g. stellata). species p. tridentata and s. stellaepolaris appeared to be new for the polish fauna. in turn black-throated diver (g. arctica) is a new host to c. mergi. | 1989 | 2718469 |