| serosurvey for toxoplasma gondii in arctic foxes and possible sources of infection in the high arctic of svalbard. | samples (blood or tissue fluid) from 594 arctic foxes (alopex lagopus), 390 svalbard reindeer (rangifer tarandus platyrhynchus), 361 sibling voles (microtus rossiaemeridionalis), 17 walruses (odobenus rosmarus), 149 barnacle geese (branta leucopsis), 58 kittiwakes (rissa tridactyla), and 27 glaucous gulls (larus hyperboreus) from svalbard and nearby waters were assayed for antibodies against toxoplasma gondii using a direct agglutination test. the proportion of seropositive animals was 43% in ar ... | 2007 | 17950534 |
| intestinal parasites of the arctic fox in relation to the abundance and distribution of intermediate hosts. | the intestinal parasite community of arctic foxes (vulpes lagopus) on the svalbard archipelago in the high arctic was investigated in relation to the abundance and distribution of intermediate hosts. five species of cestodes (echinococcus multilocularis, taenia crassiceps, taenia polyacantha, taenia krabbei and diphyllobothrium sp.), ascaridoid nematodes and one unidentified acanthocephalan species were found. the cestodes e. multilocularis, t. crassiceps and t. polyacantha all showed a decreasi ... | 2010 | 19723357 |
| congruent responses to weather variability in high arctic herbivores. | assessing the role of weather in the dynamics of wildlife populations is a pressing task in the face of rapid environmental change. rodents and ruminants are abundant herbivore species in most arctic ecosystems, many of which are experiencing particularly rapid climate change. their different life-history characteristics, with the exception of their trophic position, suggest that they should show different responses to environmental variation. here we show that the only mammalian herbivores on t ... | 2012 | 23015455 |