The authors engaged the migration before it is needed, and minimise cost by only migrating when the resource contention is predicted to last beyond a defined period of time.
Being water-dependent and ever in search of green grass, they migrate when the rains end and spend the dry season roaming the acacia savanna, where there is water, taller grass that stays green longer, and flushes of new grass that come up after fires or local thunderstorms.
Alternatively, the couple are more likely to migrate when the female's labour market position is tenuous.
We could interpret this finding as suggesting that the couple is more likely to migrate when the female's labour market position is tenuous.
Couples are more likely to migrate when the woman is not working but this may reflect lower household opportunity costs associated with migration rather than the wife being a tied-mover.
17For example, if parents with strong concern about their children's education decide to migrate when the children are young, these children are less likely to be set back in their education.
Further experiments revealed that injured cells initiate a wave of elevated calcium ion concentration that travels through the brain, and that the microglia only begin migrating when the wave reaches them.
"I gave up the idea of migrating when the project started.
Accordingly, only 2.5% of patients (3 out of 120) migrated to a lower pN tier when excluding the third level, while 8.3% (19 out of 230) migrated when ignoring the second level.
