Epidemiology of Nosema spp. and the effect of indoor and outdoor wintering on honey bee colony population and survival in the Canadian Prairies
| Autor: | Medhat E. Nasr, Robert W. Currie, Rosanna N. Punko, Shelley E Hoover |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Physiology
Geographical locations Alberta Animal Diseases Honey Bees Nosema Abundance (ecology) Epidemiology Animal Flight education.field_of_study Multidisciplinary biology Temperature Eukaryota Bees Spring Insects Medicine Seasons Research Article Canada medicine.medical_specialty Arthropoda Science Population Zoology Health outcomes medicine Animals education Biological Locomotion Winter Organisms Biology and Life Sciences Honey bee biology.organism_classification Hymenoptera Invertebrates Temperature stress Mycoses North America Earth Sciences People and places Insect Flight Beekeeping Entomology |
| Zdroj: | PLoS ONE, Vol 16, Iss 10, p e0258801 (2021) PLoS ONE, Vol 16, Iss 10 (2021) PLoS ONE |
| ISSN: | 1932-6203 |
| Popis: | The epidemiology of Nosema spp. in honey bees, Apis mellifera, may be affected by winter conditions as cold temperatures and differing wintering methods (indoor and outdoor) provide varying levels of temperature stress and defecation flight opportunities. Across the Canadian Prairies, including Alberta, the length and severity of winter vary among geographic locations. This study investigates the seasonal pattern of Nosema abundance in two Alberta locations using indoor and outdoor wintering methods and its impact on bee population, survival, and commercial viability. This study found that N. ceranae had a distinct seasonal pattern in Alberta, with high spore abundance in spring, declining to low levels in the summer and fall. The results showed that fall Nosema monitoring might not be the best indicator of treatment needs or future colony health outcomes. There was no clear pattern for differences in N. ceranae abundance by location or wintering method. However, wintering method affected survival with colonies wintered indoors having lower mortality and more rapid spring population build-up than outdoor-wintered colonies. The results suggest that the existing Nosema threshold should be reinvestigated with wintering method in mind to provide more favorable outcomes for beekeepers. Average Nosema abundance in the spring was a significant predictor of end-of-study winter colony mortality, highlighting the importance of spring Nosema monitoring and treatments. |
| Databáze: | OpenAIRE |
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