Tehtävä 6 vastaukset ja perustelut
Tehtävä 6 KEY
6.1 How have humans increased the risks to the environment in Antarctica? (3 p.)
> They have travelled there in ever increasing numbers
"More 50 scientific research stations are based there and in the recent travel season 42,000 tourists visited ... problem is, when humans go somewhere, "hitchikers" come with"
6.2 What has Kevin Hughes been trying to establish? (3 p.)
> Which lifeforms will most likely appear in Antarctica in the near future
"... reviewed a list of 103 marine and terrestrial species that might be poised to take up residence on the continent. From that list, they pinpointed the 13 most likely to arrive, establish themselves and become invasive in the next decade."
> The existing creatures have not adapted to living alongside crabs
"haven't existed in those habitats for millions of years ... the communities are just not used to these kinds of predators coming in"
"haven't existed in those habitats for millions of years ... the communities are just not used to these kinds of predators coming in"
> There is so much to learn from its unique environment
"one of the last wildernesses ... it's told us so much about how the world works ... how ecosystems can be put together and how they function"
"one of the last wildernesses ... it's told us so much about how the world works ... how ecosystems can be put together and how they function"