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ŠUMARSKI LIST 9-10/2016 str. 38     <-- 38 -->        PDF

and 2013 had lowest abundance. In beech forests of National Park Plitvice lakes and Nature Park Medvednica 3 different hantaviruses were found within their typical rodent host species: Puumala (PUUV) in bank voles (Myodes glareolus), hantavirus Dobrava (DOBV) in yellow-necked mouse (Apodemus flavicollis) and Seewis (SWSV) in common shrew (Sorex araneus) which makes first molecular evidence of shrew-borne Seewis virus in Croatia. Highest infection rate was found in bank voles with 50 % of Puumala positive individuals. Dobrava was found in 5 % of trapped yellow-necked mouse. In 2011 there was slight increase in beech seed production reported in comparison to year 2012 and 2014. In year 2013 beech seed production was the highest with mean beech seeds/m2 23x higher than in year 2012. From the rodent abundance and beech mast data we see the trend of mast years being followed with high rodent abundance. Highest proportion of hantavirus positive rodents was found in year 2014 when their abundance was also reported highest. From this data the connection of beech mast year and rodent abundance following next year as well as high infection rates of rodents is confirmed. In same years with increased rodent abundance there was high number of human HFRS cases (hemorrhagic fever with renal failure syndrome).
Key words: small mammals, European beech, beech mast, hantaviruses