Publications by authors named "John S Nishi"
Article Synopsis
- Effective long-term strategies to handle the spillback threat of diseases like bovine tuberculosis and brucellosis from infected bison to cattle and healthy wood bison have been difficult for policymakers to establish.
- A 1990 plan to replace infected herds with disease-free wood bison was rejected due to public opposition, but advancements in vaccines, diagnostics, and genetic techniques show promise for better management.
- Successful wildlife disease management practices from other regions suggest that a combination of strategies, alongside input from various stakeholders, could lead to effective solutions for disease control and wood bison conservation.
Article Synopsis
- In March 2005, a disease called bovine tuberculosis was found in a group of bison being helped to recover in Hook Lake.
- The study looks into where the bacteria that causes this disease might have come from.
- It also talks about the challenges of saving healthy bison from a group that has the disease.
In 1996, the Hook Lake Wood Bison Recovery Project was initiated to establish a small, disease-free, captive, bison-breeding herd. Founders originated from wild bison herds in the Slave River Lowlands in northern Canada, which, like other bison herds in and around Wood Buffalo National Park, are endemically infected with bovine tuberculosis (caused by Mycobacterium bovis) and brucellosis (caused by Brucella abortus). After 9 yr of apparent disease freedom, tuberculosis was detected within the captive herd, leading to complete depopulation.
View Article and Find Full Text PDFIn Canada, there are two known regional foci where wildlife populations are infected with bovine tuberculosis (Mycobacterium bovis) and considered to be disease reservoirs. Free-ranging populations of wood bison (Bison bison athabascae) in and around Wood Buffalo National Park (WBNP) and wapiti (Cervus elaphus manitobensis) in and around Riding Mountain National Park (RMNP) are infected with bovine tuberculosis. In this paper, we provide an overview of these diseased wild ungulate populations and the complexities of attempting to manage issues relating to bovine tuberculosis in and around protected areas.
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