Šumarski list, Vol. 140 No. 9-10, 2016.
Izvorni znanstveni članak
https://doi.org/10.31298/sl.140.9-10.2
Influence of beech mast on small rodent populations and hantavirus prevalence in Nacional Park „Plitvice lakes“ and Nature Park „Medvednica“
Linda Bjedov
; Šumarski fakultet Sveučilišta u Zagreb
Petra Svoboda
; Klinika za infektivne bolesti „Dr. Fran Mihaljević“, Zagreb
Ante Tadin
; Klinika za infektivne bolesti „Dr. Fran Mihaljević“, Zagreb
Josipa Habuš
; Sveučilište u Zagrebu, Veterinarski fakultet
Zrinka Štritof
; Sveučilište u Zagrebu, Veterinarski fakultet
Nikolina Labaš
Marko Vucelja
; Šumarski fakultet Sveučilišta u Zagreb
Alemka Markotić
; Klinika za infektivne bolesti „Dr. Fran Mihaljević“, Zagreb
Nenad Turk
; Sveučilište u Zagrebu, Veterinarski fakultet
Josip Margaletić
; Šumarski fakultet Sveučilišta u Zagreb
Sažetak
The European beech (Fagus sylvatica L.) is at present considered to be the most common economically important and widespread tree species in Europe. In contrast to other tree species and economically important species in Croatia European beech has the largest areal and can be found in variety of plant communities. As the most specious and widely distributed mammalian group, rodents are the wildlife reservoir for many zoonoses which can infect humans and other wildlife. Rodent outbreaks tend to follow years with increased seed production of oak and beech. Many authors have linked fluctuations in abundance of rodent reservoirs with increase of human zoonotic infections. Aim of this research is monitoring of rodent populations and hantaviruses in beech forests. At two locations (National park Plitvice lakes and Nature park Medvednica) seven trapping plots were set, each containing 1 or 2 grids size 100m x 100m (100 traps). Rodent capturing was done from year 2011 until 2014 in summer and autumn. Beech mast was recorded in NP Plitvice lakes each year in autumn. Trapped rodents were screened for hantaviruses. Results show two dominant rodent species, yellow-necked mouse (Apodemus flavicollis) and bank vole (Myodes glareolus) in beech forests of NP Plitvice and NP Medvednica. Both species make 99 % of total captures. Rodent abundance showed increase in year 2012 and outbreak in year 2014 measuring on one grid max abundance of 45 animals/ha, whereas year 2011
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).
Ključne riječi
small mammals; European beech; beech mast; hantaviruses
Hrčak ID:
168134
URI
Datum izdavanja:
31.10.2016.
Posjeta: 2.666 *