Tundra loomad (0)

Lõik failist

Sarnased õppematerjalid

2

pdf

Tundra

Tundra Tundra is the world's youngest biome. It was formed 10 000 years ago. Located at latitudes 55° to 70° North. Almost all tundras are located in the Northern Hemisphere, encircling arctic desert and extending south to the coniferous forests of the taiga. The ecotone (ecological boundary region) between the tundra and the forest is known as the tree line or timberline. Tundra comes from the Finnish word tunturi, meaning treeless plain. It is noted for its frost-moulded landscapes, extremely low temperatures, little precipitation, poor nutrients, and short growing seasons. Dead organic material functions as a nutrient pool. The two major nutrients are nitrogen and phosphorus. Nitrogen is created by biological fixation, and phosphorus is created by precipitation.

Inglisekeelne geograafia

2

doc

Jääkarud (ing k)

Polar bear Ursus maritimus or the "sea bear." Polar bears live near the circumpolar at north in areas where they can hunt seals at open leads. Scientists estimate that there are between 22000 to 27000 polar bears. Its closest relative is the brown bear. Adult male polar bears are 2,5 to 3 meters tall. They weigh 250 to 770 kilograms. Adult female bears are smaller. They are about 1,8 to 2,5 meters tall and weigh 90 to 320 kilograms. Polar bears usually eat seals ­ usually the ringed seasl, but sometimes the bearded seals. When hunting is good, polar bears will typically eat only the fat and leave the rest of the carcass for scavengers including arctic foxes, ravens, and younger bears. Polar bears also sometimes kill and eat both walrus and beluga whales. They have even hunted short-legged reindeer and sometimes even birds and bird eggs. Polar bears are top of the food chain in the Arctic. They help to keep the balance o

Inglis keelne bioloogia

2

docx

All studied biomes

1. Key features for all studied biomes. Tundra The main seasons are winter and summer. The tundra is the world's coldest and driest biomes. The average annual temperature is -28° C. Nights can last for weeks when the sun barely rises during some months in the winter, and the temperature can drop to -70° C. During the summer the sun shines almost 24 hours a day. Summer are usually warm. Average summer temperatures range from 3° to 16°C. TaigaTaiga is the Russian word for forest and is the largest biome in the world. It stretches over Eurasia and North America. The taiga is located near

Inglisekeelne geograafia

9

doc

Topic - Canada 2

America, connectiong the Great Lakes with the Atlantic Ocean. Saint Lawrence River forms a boundary between Québec and Ontario and part of the international boundary between Canada and the U.S. state of New York. Lake Champlain and the Ottawa, Richelieu and Saguenay rivers drain into the St. Lawrence. 5. Climate Northern Canadian vegetation tapers from coniferous forests to tundra and finally to Arctic barrens in the far north. The northern Canadian mainland is ringed with a vast archipelago containing some of the world's largest islands. Average winter and summer high temperatures across the country vary depending on the location. Winters can be harsh in many regions of the country, particularly in the Prairie provinces, where daily average

Inglise keel

6

doc

Topic - Canada

There are also a lot of rivers in Canada. The longest river is the Mackenzie River which is 4241 kilometers long. It runs through the Northwest Territories. Other large and important rivers are the St. Lawrence River, the Yukon River, the Columbia River, the Nelson River, the Churchill River and the Fraser River.  Nature. Canada's land ranges from fertile agricultural plains in the south to freezing tundra in the north. The southwest of Canada has a mild climate. Cold winters characterize most of the rest of Canada. The magnetic North Pole is within Nunavut. There are five biomes in Canada: the Arctic Biome, the Tundra, the Taiga Biome, the Prairies and the Deciduous Forests. The Arctic biome is cold, windy and the land is permafrost. There are long periods of darkness and light. The growing season is very short. Some typical animals are Arctic foxes,

Inglise keel

4

docx

Inuit Culture

Inuit Culture, Traditions, and History Traditional Inuit way of life was influenced by the harsh climate and stark landscapes of the Arctic tundra ­ from beliefs inspired by stories of the aurora to practicalities like homes made of snow. Inuit invented tools, gear, and methods to help them survive in this environment. Read on to learn more about traditional Inuit ways of life, and how Inuit culture has been changed over the past century. Geography Inuit communities are found in the Arctic, in the Northwest Territories, Labrador and Quebec in Canada, above tree line in Alaska (where people are called the Inupiat and Yupik), and in Russia

Inglise keel

16

ppt

Giant Panda - slideshow

T Ü T üri C o lle g e Liina Le inm e ts  Introduction · Panda (Ailuropoda melanoleuca) is a mammal classified in the bear family, native to centralwestern and southwestern China. It is easily recognized by its large, distinctive black patches around the eyes, over the ears, and across its round body. · The Giant Panda lives in a few mountain ranges in central China. · It once lived in lowland areas, but farming, forest clearing, and other development now restrict the Giant Panda to the mountains.  In the wild · The Giant Panda is a · Pandas communicate terrestrial animal and through vocalization primarily spends its life and scent marking such roaming and feeding in as clawing trees or the bamboo forests. spraying urine. It is able · Though generally alone, to climb and take each adult has a shelter in hollow trees defined territory and or

Inglise keel

1

rtf

Yellow stone puma

The Mountain Lion cougar (Puma concolor), also puma, cougar, or panther, is a member of the Felidae family, native to the Americas. This large, solitary cat has the greatest range of any wild land mammal in the Western Hemisphere, extending from Yukon in Canada to the southern Andes of South America. An adaptable species, the cougar is found in every major North American habitat. The Mountain lions of Yellowstone region were significantly reduced by predator control measures during the early 1900s. It is reported that 121 lions were removed from the park between the years 1904 and 1925. Then, the remaining population was estimated to be 12 individuals. Mountain lions apparently existed at very low numbers between 1925 and 1940. They maintain a secretive profile in the Yellowstone region. Although the cougar population numbered in the hundreds during the early 1900s, controlled hunts between 1904 and 1925 decimated the population. Today, twenty to thirty-five mountain lions reportedly i

Inglise kirjandus

Kommentaarid (0)