| study of temporal trends in mercury concentrations in the primary flight feathers of strix aluco. | temporal trends in hg concentrations were determined in the primary flight feathers of 146 specimens of strix aluco which had died in various wildlife recovery centres in galicia (nw spain) between 1997 and 2014. the aim of the study was to determine whether standardization of a primary flight feather (or feathers) in this species is essential for identifying temporal trends in hg concentrations. for this purpose, we had to first standardize the feather(s) analyzed to enable comparison of the le ... | 2016 | 27123972 |
| aliphatic hydrocarbons in birds of prey from galicia (nw spain). | eleven aliphatic hydrocarbons, unresolved over resolved ratio (u/r), carbon preference index (cpi), pristane/c17 ratio, and totals were determined in six classes of tissues (heart, liver, intestine, muscle, lung, and kidney) of 10 buzzards (buteo buteo), 10 barn owls (tyto alba), and five tawny owls (strix aluco) from galicia (nw spain). among individuals detected at quantifiable levels, in general, c18 was found to be the most abundant. total aliphatic hydrocarbons were detected in 77% tissue s ... | 2001 | 11534951 |
| helminth fauna of falconiform and strigiform birds of prey in galicia, northwest spain. | this is a survey of the helminth fauna of 285 individuals of 14 species of birds of prey (falconiformes and strigiformes) from galicia (northwest spain), namely buteo buteo, accipiter nisus, a. gentilis, milvus migrans, m. milvus, pernis apivorus, circus pygargus, falco tinnunculus, f. peregrinus, f. subbuteo, tyto alba, strix aluco, asio otus and athene noctua. a total of 15 helminth species were detected, namely 8 nematodes ( eucoleus dispar, capillaria tenuissima, synhimantus laticeps, microt ... | 2004 | 14714181 |
| occurrence of giardia and cryptosporidium in wild birds in galicia (northwest spain). | faecal samples were obtained from 433 wild birds being treated in wildlife recovery centres in galicia (northwest spain), between february 2007 and september 2009. the birds belonged to 64 species representing 17 different orders. giardia cysts and cryptosporidium oocysts were detected by an immunofluorescence antibody test and identified at the molecular level by established pcr-sequencing methods. the overall prevalence of giardia was 2·1% and that of cryptosporidium, 8·3%. to our knowledge, t ... | 2015 | 25669618 |
| evaluation of different contour feather types for biomonitoring lead exposure in northern goshawk (accipiter gentilis) and tawny owl (strix aluco). | the concentration of pb was determined in feathers (contour feathers: mantle, pectoral, ventral, and primary- and secondary-coverts) of two sedentary species of raptors in galicia (nw spain): the tawny owl (strix aluco) and the northern goshawk (accipiter gentilis). a high degree of intraindividual variability was observed in all types of feathers, with coefficients of variation exceeding 100 percent. the correlations between feather types were too low to enable use of a single type of body feat ... | 2012 | 22975688 |
| temporal trends in mercury concentrations in raptor flight feathers stored in an environmental specimen bank in galicia (nw spain) between 2000 and 2013. | temporal trends in hg concentrations were investigated in primary flight feathers from 319 specimens of three birds of prey: p7 in the northern goshawk (accipiter gentilis), p6 in the common buzzard (buteo buteo) and p5 in the tawny owl (strix aluco). the samples were stored in a regional environmental specimen bank and belonged to specimens which died between 2000 and 2013 in galicia (nw spain). we would expect to see a decline in hg concentrations across the study period, as data of atmospheri ... | 2017 | 27995410 |