title: Minimizing the population extinction risk by migration.
abstract: Many populations in nature are fragmented: they consist of local populations occupying separate patches. A local population is prone to extinction due to the shot noise of birth and death processes. A migrating population from another patch can dramatically delay the extinction. What is the optimal migration rate that minimizes the extinction risk of the whole population? Here, we answer this question for a connected network of model habitat patches with different carrying capacities.
authors.affiliation: Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA.
authors.forename: Michael
authors.initials: M
authors.lastname: Khasin
authors.forename: Baruch
authors.initials: B
authors.lastname: Meerson
authors.forename: Evgeniy
authors.initials: E
authors.lastname: Khain
authors.forename: Leonard M
authors.initials: LM
authors.lastname: Sander
mesh_terms: D025041:Animal Migration; D053476:Extinction, Biological; D008954:Models, Biological; D013269:Stochastic Processes