Publications by authors named "D O Visscher"
Article Synopsis
- Grazing lands are expanding, and it's crucial to examine how cattle affect native ungulates, as their presence can lead to changes in both space and timing of wild ungulate activities.
- Remote cameras were used to study the effects of cattle grazing on moose, elk, and deer behaviors in a Canadian provincial park, revealing decreased use of areas by wild ungulates during and after grazing.
- The study highlights how elk became more active at night while deer species were less active at night due to cattle presence, underscoring the importance of understanding these interactions for effective wildlife management and conservation.
Predators negatively affect prey outside of direct attack, and these nonconsumptive effects (NCEs) may cause over half the impacts of predators on prey populations. This "ecology of fear" framework has been extended to host-parasite interactions. The NCEs of parasites are thought to be small relative to those of predators.
View Article and Find Full Text PDFWildlife must adapt to human presence to survive in the Anthropocene, so it is critical to understand species responses to humans in different contexts. We used camera trapping as a lens to view mammal responses to changes in human activity during the COVID-19 pandemic. Across 163 species sampled in 102 projects around the world, changes in the amount and timing of animal activity varied widely.
View Article and Find Full Text PDFHuman alveolar echinococcosis is increasingly documented in Alberta, Canada. Its causative agent, Echinococcus multilocularis (Em), can be transmitted to humans by infected dogs. We assessed the prevalence and associated risk factors for Em infections in domestic dogs in Calgary, Alberta, Canada.
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