Its isolated population live just as they have for centuries, seeming half-pleased and half-snubbed at being left out of the hubbub of the neighbouring islands.

BBC: The perfect trip: The Dodecanese Islands

As part of the trial cull, researchers have trapped and euthanised sick animals two to five times a year from an isolated population in the south-east of Tasmania.

BBC: Cull 'cannot save' Tasmanian devil

It was also home to a distinct and isolated mosquito population, so the effect could be monitored closely with only a minor risk of mosquitoes from neighbouring areas contaminating the results.

BBC: The malaria parasite is spread by mosquitoes

It's not designed to break down the population into separate isolated individuals and treat them as mere numbers.

NPR: Debating the Merits of the Electoral College

Guatemala is a country with a diverse population, where isolated rural communities speak a total of 23 different languages.

FORBES: Political Risk? In Guatemala Teachers Unions Clash with Police, Fighting to Block Education Reform

These connected patches were still not as healthy after six months as the unsullied moss, but they did far better than isolated islands a result that supports the notion that population exchange is necessary to keep an ecosystem healthy.

ECONOMIST: Road kill

The results showed that huge numbers of carers are left isolated and lonely, missing out on opportunities that the rest of the population takes for granted.

BBC: Carers 'get no respite from role'

Florida has a population that appears to be breeding, but only in Hawaii, where the fish is isolated on the island of Oahu, does it truly thrive, and there it's aggressively fished.

CNN: Fish tale