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Pregled bibliografske jedinice broj: 832528

Impact of extreme weather conditions on wild boar mortality in lowland forest ecosystems in Croatia


Ugarković, D; Šprem, N; Oršanić, M.
Impact of extreme weather conditions on wild boar mortality in lowland forest ecosystems in Croatia // 11th International Symposium on Wild Boar & Other Suids
Mersch, Luxembourg, 2016. str. 47-47 (predavanje, međunarodna recenzija, sažetak, znanstveni)


Naslov
Impact of extreme weather conditions on wild boar mortality in lowland forest ecosystems in Croatia

Autori
Ugarković, D ; Šprem, N ; Oršanić, M.

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
11th International Symposium on Wild Boar & Other Suids / - Mersch, Luxembourg, 2016, 47-47

Skup
11th International Symposium on Wild Boar & Other Suids

Mjesto i datum
Mersch, Luxembourg, 5-8.09.2016

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Wild boar; floods; drought; lowland forests; Sava river

Sažetak
The main large game species raised in the lowland hunting grounds of the Posavina region of Croatia are the red deer (Cervus elaphus L.), roe deer (Capreolus capreolus L.) and wild boar (Sus scrofa L.).The hydrological regime in this region is dependent primarily upon the microrelief and the water levels of the Sava River. The objective of this study was to determine the impact of extreme weather conditions, flood and drought, on wild boar mortality. Research was conducted in two hunting grounds in lowland Croatia, area of Lonjsko polje. These hunting grounds represent high quality habitats for wild boar. The impact of extreme weather events on wild boar mortality was analysed for a ten-year period. Mortality data were collected from the hunting management plans and the game damages records. Wet and dry years were determined using the percentile method. Flood duration was collected from hunting chronicles, while drought duration was determined using the climatogram method. Spearman correlation was used to determine an association between weather conditions and wild boar mortality. Floods lasted from 14 to 198 days at the annual level, most often in March and November, while the level of floodwaters was up to 4 metres in some places. Wild boar mortality was recorded for all age groups. The highest mortality was recorded in the juvenile age class. With regard to the sex ratio, mortality was recorded for both males and females (1:1.3). In the lowland hunting grounds, the mortality ratio in planned culling of wild boar ranged from 0 to 63%. With an increase in the number of flooded days, mortality of wild boar increased significantly (r=0.60*). This is important since several lowland hunting grounds, such as the area of Lonjsko polje, are natural retention areas used for the purpose of protecting agriculture ecosystems and urban areas from flooding. The lowland hunting grounds had a significantly greater impact of flooding than drought on wild boar mortality. Based on the expected climate changes, it can be concluded that floods as an extreme form of weather, will have a substantial impact on wild boar mortality in lowland hunting grounds in the future.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija), Šumarstvo



POVEZANOST RADA


Ustanove
Šumarski fakultet, Zagreb,
Agronomski fakultet, Zagreb