BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:When does spatial diversification usefully maximise the durability
  of crop disease resistance? - Benjamin Watkinson-Powell\, Department of P
 lant Sciences\, University of Cambridge)
DTSTART:20190215T160000Z
DTEND:20190215T170000Z
UID:TALK107689@talks.cam.ac.uk
CONTACT:Prof. Julia Gog
DESCRIPTION:Maximising the durability of crop disease resistance genes in 
 the face of pathogen evolution is a major challenge in modern agricultural
  epidemiology. Spatial diversification in the deployment of resistance gen
 es\, where susceptible and resistant fields are more closely intermixed\, 
 is predicted to drive lower epidemic intensities over evolutionary timesca
 les. This is due to an increase in the strength of dilution effects\, caus
 ed by pathogen inoculum challenging host tissue to which it is not well-sp
 ecialised. The factors that interact with and determine the magnitude of t
 his spatial effect are not currently well understood however\, leading to 
 uncertainty over the pathosystems where such a strategy is most likely to 
 be cost-effective. In this talk I will be describing the spatially explici
 t model we have used to explore the effect on landscape scale disease dyna
 mics of spatial heterogeneity in the arrangement of fields planted with ei
 ther susceptible or resistant cultivars. Of particular interest is the com
 plex manner in which the epidemiological and genetic parameters interact w
 ith the spatial dynamics of the system\, leading to important insights for
  both theory and practical application.
LOCATION:Meeting room 15\, Centre for Mathematical Sciences
END:VEVENT
END:VCALENDAR