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2. Magistritööd

Selle kollektsiooni püsiv URIhttp://hdl.handle.net/10492/2498

Sirvi

Sirvi 2. Magistritööd Märksõna "African Swine Fever" järgi

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    Animal species scavenging on wild boar carcasses on island Hiiumaa (Estonia)
    (Eesti Maaülikool, 2021) Häkkä, Susanna Suvi Siviä; Viltrop, Arvo
    Understanding the importance of wildlife in disease distribution dynamics has increased. Wildlife is a significant source of infections for livestock, companion animals and even for humans. Among wildlife, there are several modes of disease transmission, one being through scavenging. Scavenging behaviour is very common among vertebrates in both avian and mammalian species and it is an important part of ecosystem. Scavenging is not only beneficial, but it can also pose a health risk by ingesting pathogens and toxic by-products of microbial metabolism. Potential role of scavenging in disease transmission has been studied marginally. Wild boar is a facultative scavenger. There has been a steep increase in the wild boar population in Europe. Wild boar has been noted being an important host of agents of some diseases such as African swine fever, bovine tuberculosis, tularaemia, and brucellosis. Differences in scavenging behaviour of wild boar has been noted around Europe: in some areas, cannibalism has been detected whereas in other areas only interspecies scavenging in wild boar has been shown. The general objective of this study was to describe scavenging behaviour of wildlife on wild boar carcasses in Hiiumaa (Estonia). Specific aims were to find out, which animal species are in contact with or scavenge wild boar carcasses and to investigate if intraspecies scavenging occurs among wild boar in Hiiumaa. With help of camera traps 17 vertebrate species were identified in proximity of wild boar carcasses placed in the forest, out of which 11 were in direct contact with the carcass. Common raven (Corvus corax), red fox (Vulpes vulpes), raccoon dog (Nyctereutes procyonoides), and wild boar (Sus scrofa) were the four most common species in contact. There were no clear signs of cannibalism among wild boar observed in this study.