Why are the tundra ecosystems less resilient to human-induced change than temperate forests are?

Answer 1

This is the wrong question. The question should be, "How can we tell whether the tundra ecosystems are impacted by human vs. natural changes?"

And then of course, the answer would be, "It's impossible to tell."

Such things are studied, but no concrete answers are available. Instead, people form opinions. Many take the opinions to be the same as fact. But they are not.

There is a huge industry in blaming humans for environmental changes.... a lot of money to be lost if we stop blaming humans. A lot of greed going on here. Step warily.

Answer 2

Time, for one. In the arctic and sub-arctic changes happen over years and decades, not the hours and days of the temperate zones. Most of the arctic still looks the way it did 10,000 years ago and human damage takes that much longer to get repaired, if it ever does. There's also a much smaller bio-diversity in the arctic and sub-arctic and therefore a substantially narrower margin for change that won't adversely affect the ecosystem.

Answer 3

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Answer 4

In temperate regions, plants seed quickly, germinate quickly, and grow quickly. Destroy a bush and a new one will start to grow in its place within a few months to a year. Temperate regions have very diversified ecosystems - thousands of plant, bird, insect, bacteria, and mammal species in one location.

Tundra grows very slowly (years instead of months) due to the short growing season and long winters.
The system is generally less diverse than temperate - fewer species. This means that there are fewer species that can fill a niche left if a species dies off.
The slow growth means that if you destroy a bush, it could take another 5-10 years for another to grow in its place.

Answer 5

Because tundra Ecosystems involve very long plant regeneration rates due long winters and very short growing seasons, wheras temperate forests have much longer growing seasons and shorter, milder winters.

Answer 6

These systems change slow and have been developing for many years...in the North Slope of Alaska...you can still see footprints left from many years ago by people...man changes things radically and quickly...the system falls apart