Mechanistic movement models reveal ecological drivers of tick-borne pathogen spread
| Autor: | Nicholas H. Ogden, Patricia Lamirande, Catherine Bouchard, Eric Chamberland, André Fortin, Olivia Tardy, Patrick A. Leighton |
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| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Biomedical Engineering Biophysics Bioengineering Biology 010603 evolutionary biology 01 natural sciences Biochemistry Birds Biomaterials 03 medical and health sciences Tick borne Disease management (agriculture) parasitic diseases medicine Animals Pathogen 030304 developmental biology Lyme Disease 0303 health sciences Tick-borne disease Ixodes Ecology bacterial infections and mycoses medicine.disease Ixodes scapularis Borrelia burgdorferi Biotechnology |
| Zdroj: | Journal of The Royal Society Interface. 18 |
| ISSN: | 1742-5662 |
| Popis: | Identifying ecological drivers of tick-borne pathogen spread has great value for tick-borne disease management. However, theoretical investigations into the consequences of host movement behaviour on pathogen spread dynamics in heterogeneous landscapes remain limited because spatially explicit epidemiological models that incorporate more realistic mechanisms governing host movement are rare. We built a mechanistic movement model to investigate how the interplay between multiple ecological drivers affects the risk of tick-borne pathogen spread across heterogeneous landscapes. We used the model to generate simulations of tick dispersal by migratory birds and terrestrial hosts across theoretical landscapes varying in resource aggregation, and we performed a sensitivity analysis to explore the impacts of different parameters on the infected tick spread rate, tick infection prevalence and infected tick density. Our findings highlight the importance of host movement and tick population dynamics in explaining the infected tick spread rate into new regions. Tick infection prevalence and infected tick density were driven by predictors related to the infection process and tick population dynamics, respectively. Our results suggest that control strategies aiming to reduce tick burden on tick reproduction hosts and encounter rate between immature ticks and pathogen amplification hosts will be most effective at reducing tick-borne disease risk. |
| Databáze: | OpenAIRE |
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