Analysis of variation in tooth size in a population of red fox, Vulpes vulpes (Linnaeus, 1758) from Poland based on three indices (coefficient of variation CV, variation index VSD, residual standard deviation RSD) and its correlation with average tooth size revealed two contradictory patterns. The CV and VSD were significantly correlated with average tooth sizes, while RSD values was independen...

Lyme disease is the most prevalent vector-borne disease in north temperate areas worldwide, with the majority of cases reported in the northeastern United States. The transmission cycle involves ticks, deer, small mammalian hosts such as mice, and numerous other species. Levi et al. (2012) suggested that Canis latrans (Coyote) abundance and Vulpes vulpes (Red Fox) scarcity are strong predictors...

Members of the canid family – e.g. domestic dog Canis familiaris, wolf Canis lupus, red fox Vulpes vulpes and raccoon dog Nyctereutes procyonoides – share a wealth of parasite species. Nowadays, the diversity of the parasitic fauna of domestic dogs is reduced by antiparasitic medications and disposal of faeces, but a thriving population of wild foxes can host even rare parasite species. Finnish...

This thesis investigates how changes in population size and spatial movements of individuals have shaped the distribution and abundance of neutral genetic variation in the arctic fox (Alopex lagopus). This is done through mitochondrial and microsatellite DNA analyses on samples covering most of the species’ distribution, but with special emphasis on Scandinavia. On the species level, nucleotide...

-In 1995 we deployed 800 simulated nests equipped with nest mortality timers to assess temporal patterns of predation of duck nests in the Canadian prairies. Timers recorded 470 predation events (70% of 672 depredated nests). Predation was nonrandom throughout the day, with a peak occurring between 00:00 and 06:00. Coyote (Canis latrans) and red fox (Vulpes vulpes) depredated nests at similar t...