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Cold Desert Biome
Transcript of Cold Desert Biome
A cold desert is an area in which the main form of precipitation is snow, and the ground is covered with ice year round. The worlds largest cold desert can be found in the Antarctic.
•Large amount of snowfall in winter (and sometimes in summer), plus a high average of rainfall (15-26 cm.) occurring mainly in April and May or autumn, depending upon the area
•Short, wet moderately warm summers
•Mean average winter temperature -2 to 4ºC
•Mean average summer temperature 21-26º
Locations in the World
Peaks of high mountains
Near the North & South Poles.
Parts of the Antarctic
Inland mountains of Greenland
Areas of the Himalayas
The primary producers are microscopic in size. Tiny diatoms, crustaceans, and protozoans live here. Oceanic upwelling brings nutrients from the bottom of the sea, and these microscopic creatures thrive.
The primary consumers, such as small fishes and squid, eat these tiny lifeforms. The most important of the primary consumers are krill, small, shrimp-like animals that swarm in great numbers. Krill are a very important part of the food chain in the ocean.
The secondary consumers include the huge blue and humpback whales, who feed on krill. Seals and many kinds of fishes also feed on krill and the smaller fish. Many kinds of sea birds utilize these resources, and, in the Antarctic, penguins also feed on them.
The top predators in this food chain are killer whales. (Polar bears occupy this position in the arctic north) These are large, powerful animals, well adapted to their niche in a cold, demanding environment. They eat whatever they can catch, and prey mainly on penguins and seals.
What is it?
Groups of Animals in the Cold Desert
Groups of Plants in the Cold Desert
Artic Fox, Polar Bear,Artic Wolf,Caribu,Artic Hare, Artic Ground Squirrel.
Artic/Antartic Tern, Snowy Owl, Great Horned Owl, Raven, Snow Geese, Penguins.
Walrus, Orca Whale, Harp Seal, Beluga Whale, Leopard Seal, Humpback Whale, Killer Whale.
Mosses, grasses, herbs, lichens.
Various Plants Include:
One threat to the cold desert is global warming, as all the ice in them is melting away.
Oil spills are also problems as the water becomes polluted and poisonous to the animals within the biome.
Solutions to Biome Threats
Tropical deforestation accounts for about 15 percent of the world’s heat-trapping emissions — more than the total emissions of every car, truck, plane, ship, and train on Earth.
Reducing tropical deforestation can significantly lower global warming emissions and — together with efforts to reduce emissions from fossil fuels — plays an integral role in a comprehensive long-term solution to global warming
In order to effectively address global warming, we must significantly reduce the amount of heat-trapping emissions we are putting into the atmosphere.
As individuals, we can help by taking action to reduce our personal carbon emissions. But to fully address the threat of global warming, we must demand action from our elected leaders to support and implement a comprehensive set of climate solutions.
Aerial reconnaissance is an essential element for effective response to oil spills at sea. It is used to evaluate the location and the extent of the contamination of oil and to make predictions, verifying the movement of the oil on the sea. Aerial observation provides information that facilitates the development and control of operations at sea, the timely protection of locations along the threatened shorelines as well as the preparation of resources for the cleanup of the coast.
Their white fur helps them blend in with the snow and ice.
A polar bear has a layer of fat under its skin which helps it stay warm. It also has a thick layer of fur.
The wide, large paws help a polar bear to walk in the snow.
When a polar bear swims under water it closes it nostrils so no water can get in.
How are Polar Bears Adapted to the Cold Desert?
1. What is a cold desert?
2. What is the largest cold desert in the world?
3. Name one animal at the tertiary level of the food web.
4. What is one way polar bears have adapted to their environment?
5. What is one threat to the Artic and Antartic cold deserts?