10/31/2010 12:35:34 AM

The Arctic Tundra: A Biome Worth Preserving

Spending time in wild places has always been rejuvenating for me. I find peace in these wild places. I'm lucky to have the opportunity to visit this cold corner of our planet, and hope that one day my children and my grandchildren can do the same. It's worth making some small changes around my house and in my community to ensure that this ecosystem is around for them.

The great thing about this adventure is that I'm traveling to another country to help kids see that they don't have to travel to another country to make a difference. The arctic tundra is such a foreign place to most of us and I'm glad for the opportunity to visit. It's a biome that is changing fast; too fast. It's a biome that is being impacted by the choices of people thousands of miles away, and it's a biome that brings our globe together.

For many, it may seem like a desolate wasteland, and while it's a harsh climate with gnarly terrain, it's filled with life that can be found nowhere else. There are arctic fox, arctic hare, snow bunting, and polar bears that live here year round. There are countless species of birds that pass through here during long migrations.

The polar bear receives the most attention of all these animals, and it's easy to see why. While seeing polar bears at the Memphis Zoo is always fun, it can't compare to seeing a bear on the banks of Hudson Bay waiting for his time to venture out and eat for the first time in months. The bear I saw this morning sat around lazily all day conserving his energy for the long journey out onto the ice where his limited diet can be found. He must eat seals because nothing else has a fat content high enough to sustain him. Often, he will only eat the seal blubber because it's a waste of time to finish off the rest. The fat has the most energy per gram and he will need all the energy reserves he can store.

This is great for the little furry white fox that follows along behind him. Without the polar to bring this seal up from its den in the ice, the fox would surely starve. An ecosystem with such a fragile food web is dramatically affected by small changes in abundance of animals, and scientists are beginning to detect these small changes already.

I never really considered myself an activist, but I think I may have acquired that title during my time at St. George's. I don't really know how it happened, but maybe I'm starting to live up to my reputation. After all, I'm at the polar bear capital of the world discussing how climate change is affecting these animals. As an environmental science teacher and someone who truly believes the way to make a difference in this world is to impact the lives of young people, I hope my time here can do just that.

Photo Credits: Top, ©Andrew Fore; middle and bottom, ©Mike Lockhart.