Publications by authors named "Ragne Oja"

After a strong demographic decline before World War II, wild boar populations are expanding and the species is now the second-most abundant ungulate in Europe. This increase raises concerns due to wild boar impact on crops and natural ecosystems and as potential vector of diseases. Additionally, wild boar can hybridize with domestic pigs, which could increase health risks and alter wild boar adaptive potential.

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Capercaillie (Tetrao urogallus) and other grouse species represent conservation concerns across Europe due to their negative abundance trends. In addition to habitat deterioration, predation is considered a major factor contributing to population declines. While the role of generalist predators on grouse predation is relatively well known, the impact of the omnivorous wild boar has remained elusive.

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Supplementary feeding is widely used in game management but may aid the transmission of parasites. Firstly, feeding sites attract animals and may be regarded as high-risk areas for parasite transmission. Secondly, high host population densities resulting from and supported by supplementary feeding, as well as accumulation of parasites in the environment, may increase parasite prevalence.

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Supplementary feeding of ungulates, being widely used in game management, may have unwanted consequences. Its role in agricultural damage is well-studied, but few studies have considered the potential for the practice to attract ground nest predators. Our goal was to identify the factors influencing ground nest predation in the vicinity of year-round supplementary feeding sites for wild boar and to characterise their spatiotemporal scope.

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Article Synopsis
  • - Echinococcus granulosus and E. multilocularis are important tapeworm parasites linked to serious diseases in humans and animals, making them significant neglected diseases recognized by the WHO.
  • - A study in an urban area of Estonia utilized a non-invasive genetic method to analyze dog fecal samples, revealing that 2.2% were positive for E. granulosus but none for E. multilocularis.
  • - The findings indicate that urban dogs can spread E. granulosus, posing a potential health risk to humans in contaminated environments.
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