The bacteria of caribou in the Arctic: What do their hooves reveal to us?
In the harsh environment of the Arctic, the good health of caribou is crucial for their survival and reproductive success. Hoof problems can have a significant impact on the mobility, well-being, and survival of these animals. Hoof diseases are a serious concern in the animal world, and Arctic caribou are no exception. To better understand this crucial aspect of their health, we have conducted a study aimed at delving into the microbiological aspects of the hooves of these animals. The objective? To investigate the presence of Treponema species, a group of bacteria known to be associated with hoof diseases in livestock.
The findings obtained have been surprising. Through meticulous analysis, we have discovered the presence of species of this bacteria (Treponema) in samples of apparently healthy Arctic caribou hoof tissue. The species detected were Treponema phagedenis, Treponema medium, and Treponema pedis. The results of genetic studies of the bacteria found in caribou were unexpected, as they showed a high similarity to the bacteria affecting livestock. This suggests that these bacteria are widely distributed in hoofed animals beyond temperate zones and can be found in both domestic and wild animals. Apparently, in Arctic caribou, they may be present in the absence of obvious signs of hoof disease during the cold months of early spring.
These findings raise important questions about the interaction between Treponema species and the health of Arctic caribou. What is the specific role of these bacteria in the development of hoof diseases in caribou? How do environmental factors such as climate affect the presence and activity of Treponema species in caribou hooves? And what are the implications of this for their conservation in a constantly changing world?
Understanding the microbiology of caribou hooves can help to develop management and conservation strategies that promote the health and well-being of these populations in a changing environment. Although many questions remain to be answered, this study marks an important step in our understanding of the health of Arctic caribou. It reminds us of the complexity and interconnectedness of life in this unique ecosystem and underscores the importance of continuing to study and learn about the health of these magnificent animals.
Xavier Fernandez Aguilar
Wildlife Conservation Medicine Research Group (WildCoM)
Department of Animal Medicine and Surgery, Universitat Autònoma de Barcelona, Spain
Mixed Unit IRTA-UAB Research Unit in Animal Health, Animal Health Research Center (CReSA), Campus de la Universitat Autònoma de Barcelona, Spain
Rakel Arrazuria
Faculty of Veterinary Medicine
University of Calgary, Canada
References
Dias, A. P., Aguilar, X. F., De Buck, J., Kutz, S., & Arrazuria, R. (2024). Digital dermatitis-associated Treponema species detection and quantification in migratory tundra caribou (Rangifer tarandus). Research In Veterinary Science/Research In Veterinary Science, 171, 105210. https://doi.org/10.1016/j.rvsc.2024.105210