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Friday, November 22

Seminar: An approach to model the bird migration and the transmisssion dynamics of bird flu among migration birds

Conference/Seminar

Speaker: Rongsong Liu, University of Wyoming

Abstract: An approach to modelling bird migration is proposed, in which there is a region where birds do not move but spend time breeding. Birds leave this breeding region and enter a migration flyway which is effectively a one-way corridor starting and ending at the breeding location. Mathematically, the flyway is a curve parametrised by arc-length. Flight speed depends on position along the flyway, to take account of factors such as wind and the pausing of birds at various locations for wintering or stopovers. Per-capita mortality along the flyway is both position and age-dependent, allowing for increased risks at stopover locations due to predation, and increased risks to immature birds. We also model indirect transmission, via contact with viruses, of avian influenza in migratory and nonmigratory birds, taking into account age structure. Sufficient conditions are obtained for the local stability of the disease-free equilibrium (for a species without migration) and for the disease-free periodic solution (for a migratory species).

11/22 at 3:30 pm | Animal Science | More Info

USU Physics November Demo Show

Special Event

Inquiring minds of all ages are invited to the 12th annual USU Physics November Demo Show! This year's theme is "Phun with Physics Phluilds for Phamily, Phriends and Phellow Physicists!" In what's become a Cache Valley favorite, the USU Department of Physics presents its annual November Demo Show each year on the Friday before Thanksgiving at 7 p.m. in the Eccles Science Learning Center Emert Auditorium (ESLC 130) on campus. The approximately hour-long show features non-stop science demonstrations. Admission is free.

For more information, including directions and parking information, visit: https://www.usu.edu/science/pages/nov-demo-show

11/22 at 7:00 pm | Eccles Science Learning Center Auditorium | More Info



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