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DESCRIPTION:How do we define a patch? Deriving subpopulation structure from
  movement models using random-walk-based distance metrics\n\nEric Pedersen
 \, Concordia University\n	Tuesday October 31\, 12-1pm\n	Zoom Link: https://m
 cgill.zoom.us/j/86855481591\n	In Person: 550 Sherbrooke\, Room 189\n	\n	Abstr
 act: The metapopulation framework is a cornerstone tool for modelling spat
 ially structured populations. A metapopulation is defined as a set of subp
 opulations living in well-mixed patches\, connected by inter-patch movemen
 t. However\, there is currently no clear single definition of what constit
 utes a “patch” of habitat in fragmented and heterogeneous landscape. In th
 is talk\, I argue that we should define patches based on synchronization o
 f population dynamics driven by local interactions between individuals. Fu
 rther\, when interaction is driven by individual patterns of movement and 
 movement follows a Markov random walk\, I show that it is possible to deri
 ve a measure of lifetime encounter probabilities between individuals inhab
 iting the landscape. This can be used to define a consistent metric for cl
 ustering locations on a landscape based on patterns of encounter probabili
 ty. I demonstrate an eigenvector- based approach to approximating this met
 ric for large complex landscapes\, and show how this approach works for cl
 ustering simulated landscapes and spatially structured marine habitat of N
 orthern Shrimp in northern Atlantic waters in Canada.\n
DTSTART:20231031T160000Z
DTEND:20231031T170000Z
SUMMARY:QLS Seminar Series - Eric Pedersen
URL:/qls/channels/event/qls-seminar-series-eric-peders
 en-350928
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