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
Few natural temperate grassland regions remain because most have been turned into farms or grazing land. This is because they are flat, covered with grass and have a rich soil. Overgrazing, ploughing, and excess salts left behind by irrigation waters harm temperate grasslands. Strong winds blow loose soil from the ground after ploughing, especially during droughts. TV H 1-7 lk 26-28 http://www.blueplanetbiomes.org/world_biomes.htm http://www.ucmp.berkeley.edu/exhibits/biomes/index.php http://www.ucmp.berkeley.edu/glossary/gloss5/biome/ http://www.mbgnet.net/ http://www.worldbiomes.com/ http://www.thewildclassroom.com/biomes/ http://kids.nceas.ucsb.edu/biomes/index.html http://www.world-builders.org/lessons/less/biomes/introbiomes.html http://library.thinkquest.org/C0113340/main.php?section=biomes http://www.cotf.edu/ete/modules/msese/earthsysflr/biomes.html http://www.marietta.edu/~biol/biomes/biome_main.htm http://www.runet
Broadleaf trees tend to be nutrient-demanding and their leaves bind the major nutrient bases. Thus the litter under this forest is not as acidic as under needleleaf trees and aluminum and iron are not mobilized from the A horizon. The autumn leaf fall provides for an abundant and rich humus which begins to decay rapidly in spring just as the growing season begins. Kasutatud kirjandus: http://www.kidcyber.com.au/topics/biomeforest.htm http://www.marietta.edu/~biol/biomes/images/deciduous/deciduous_500.jpg http://www.runet.edu/~swoodwar/CLASSES/GEOG235/biomes/tbdf/tbdf.html
8. ÖKOSÜSTEEMID 1. Masing, V. 1979. Botaanika III. Tallinn. 2. Vuorisalo, T. 1993. Keskkonnakaitse ökoloogilised alused. Kirjastus: Eesti Loodusfoto. 3. Pleijel, H. 1993. Ökoloogiaraamat. Sissejuhatus ökoloogia alustesse. Tallinna Raamatutrükikoda. 4. http://www.ucmp.berkeley.edu/exhibits/biomes/freshwater.php Kõigi maailma ökosüsteemide summat kutsutakse biosfääriks. Astronoomiliste mõõtmetega võrreldes on biosfäär õhuke kiht Maa pinna ligidal, millel leidub elu. Maakera pinnast umbes 2/3 katab meri, ülejäänu on manner. Mandritel on maismaa- ja mageveekeskkonnad, mõnes kohas ka soolase veega järvi, millest tuntuim on Surnumeri. Maismaaökosüsteemid - Elu poolt asustatud atmosfääri maht maismaa kohal (kui
varasemate keskkonnatingimustega, mis võimaldab siduda praegu erinevaid liike ühise esivanema külge. 7. Mis on fitness (ökoloogias)? Suurema kohanemusega isendid annavad rohkem järglasi kui populatsiooni keskmine isend 8. Mille alusel eristatakse bioome? Bioom ehk makroökosüsteem on geograafiliselt piiritletav ala mingi taimkatte- ja ühtlasi ka kliimavööndi piires. Biomes are climatically and geographically defined as similar climatic conditions on the Earth, such as communities of plants, animals, and soil organisms,[1] and are often referred to as ecosystems. A fundamental classification of biomes is: 1. Terrestrial (land) biomes 2. Aquatic biomes (including Freshwater biomes and Marine biomes) Biomes are often known in English by local names. For example, a temperate grassland or
MIINA HÄRMA GYMNASIUM Deserts Saudi-Arabia Tartu 2007 Deserts In geography, a desert is a landscape form or region that receives very little precipitation. Generally, deserts are defined as areas that receive an average annual precipitation of less than 250 mm (10 inches). Deserts cover at least one-fourth of the Earth's land surface. Desert biomes can be classified according to several characteristics. There are four major types of deserts: · Hot and dry · Semiarid · Coastal · Cold Location The four major North American deserts of hot and dry deserts are the Chihuahuan, Sonoran, Mojave and Great Basin. Others outside the U.S. include the Southern Asian realm, Neotropical (South and Central America), Ethiopian (Africa) and Australian.
Seal saab tutvuda kohalikega ning võtta ekskursioone kõrbesse. Namibis kaevandatakse tina ja uraanimaaki ning ka teemante. KASUTATUD KIRJANDUS 1. http://et.tixik.com/namib-2366273.htm 2. http://beta.sedac.ciesin.columbia.edu/gpw/global.jsp 3. http://en.wikipedia.org/wiki/Namib_Desert 4. http://www.jle.com/en/revues/agro_biotech/sec/e-docs/00/04/39/F8/article.phtml? fichier=images.htm 5. http://www.enchantedlearning.com/biomes/desert/desert.shtml 6. http://www.travelandtourisminfo.com/Namibia/Namibia_Tourism.asp 7. http://www.namibian.org/travel/namibia/namib-naukluft.htm 8. http://3.bp.blogspot.com/_uIzrzNrPu20/SLRG8EwIcLI/AAAAAAAAAJU/_XT Wtn7IQG0/s1600-h/namiibia1_+504.jpg
The climate and geography determines which type of biome can exist there. 2. Using the map describe the distribution of the biome (tropical rainforest/tropical deciduous forest). Tropical rainforest South America, Africa (Madagaskar), Asia. Tropical deciduous forest South America, Asia, Australia 3. Compare the climates (tropical rainforest/tropical deciduous forest). Tropical rainforest is wetter than tropical deciduous forest. Both of these biomes have a warm climate all year long. Tropical deciduous forest has a well defined dry and a wet season. During the dry season, the trees in tropical deciduous forest lose their leaves. 4. Using the climate diagram describe the climate of the region (tropical rainforest/tropical deciduous forest). 5. Why are tropical rainforest soils not fertile? Because rapid bacterial decay prevents the accumulation of humus. 6
second largest waterfall in the world) are one of the greatest attractions in the world. About twelve million tourists come to see the beauty of the falling waters every year. The Horseshoe Falls are much bigger and have more strength that the American Falls. People can enjoy the noise and the sight of the waters from the boats which take them right next to the falls. In the evenings, when the falls are illuminated by colorful spotlights, they are magnificent. There are five major biomes in Canada: Arctic Biomes, Tundras, Taigas, Prairies and Decidious Forests. The Arctic Biome is very cold and windy. There are long periods of darkness and the growing season is very short so there are almost no plants. Some of the typical animals are the Arctic fox, ermines, polar bears, Arctic terns, walruses and seals. The Tundra is located near the Arctic region. It's permafrost and desertlike. Some of the plants that can survive are lichens and mosses. Typical animals are musk
large selection of snakes also call Canada home. Squirrels, chipmunks, racoons and skunks often found in and around cities. Some of the most common animals to spot in Canada are birds, including Canada Geese, Bald Eagles and the Great Blue Heron. Canada's varied climates allow for a large selection of spiders, bugs and insect while the countless rivers, lakes and 3 oceans are home to dolphins, whales, salmon, sharks and many other species of fish and sealife. There are five major Biomes in Canada: Arctic Biomes, Tundras, Taigas, Praeries and Deciduous Forests. The Tundra is located near the Arctic region. It is permafrost and desert-like. The area is very cold and windy. The growing season is 50-60 days. Some of the plants that can survive there are lichens and mosses. Typical animals for the Tundra are musk oxen, elks, moose, lemmings, wolves and foxes. The Taiga biome, also known as coniferous forests is located south of the Tundra region
They make their home in underground burrows that consist of several chambers and entrances. Taiga - Most animals migrate to warmer climates once the cold weather begins. Some animals have adapted to life in the taiga by hibernating when temperatures drop. Other animals have adapted to the extreme cold temperatures by producing a layer of insulating feathers or fur to protect them from the cold. 13. Which human activities endanger the biome? Temperate forest: one of the most altered biomes on the planet. By looking at a map you will see that our population density very closely corresponds to the distribution of Temperate Forests. We use the wood of these trees for construction, firewood and art. They have been cleared for farming and to build communities. These human activities have led to the decline and loss of these forests in many parts of the world
959 m. It is the second-highest peak in North America. Mt. Logan is located within Kluane National Park and Reserve in southwestern Yukon. The Rocky Mountains, often called the Rockies, are a broad mountain range in western North America. The Rocky Mountains stretch more than 3,000 miles (4,800 kilometres) from British Columbia, in Canada, to New Mexico, in the United States. Mount Robson, at 12,972 feet (3,954 meters) is the highest peak in the Canadian Rockies Canada has many different biomes. For instance: The Arctic. It is a very cold, windy, and often snowy biome located around the North Pole. Long periods of darkness (in the winter) and light (in the summer) also affect Arctic life. Nature. Canada is one of the most exciting countries in the world. It has many interesting cities, like Toronto, North Vancouver, Montreal or Halifax. But also some of the most impressive nature, which is great for outdoor activities, like hiking, skiing, rafting and fishing
com/watch?v=fjGZlNLOoms Kasutatud allikad: http://et.wikipedia.org/wiki/Akaatsia http://www.acacia-world.net/index.php/acacia- world/unforgettable-acacias http://waynesword.palomar.edu/plaug99.htm http://wol.jw.org/et/wol/d/r37/lp-st/102002605 http://www.worldwidewattle.com/infogallery/utilisation/seeds. php http://anpsa.org.au/APOL25/mar02-3.html http://toidutare.ee/oma_maitse_rubriik/maitsetark/17FC2/ http://pixgood.com/kenya-sunset-wallpaper.html http://www.marietta. edu/~biol/biomes/images/tropseas/20dimg_1253.jpg III kursus 2015 AITÄH!
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, ermines, polar bears, Arctic terns, walruses and seals. The Tundra is located near the Arctic region. It is cold and windy as well. The land is permafrost and desert-like
spaced, scattered trees, however in many savanna communities tree densities are higher and trees are more regularly spaced than in forest communities. The open canopy allows sufficient light to reach the ground to support an unbroken herbaceous layer consisting primarily of C4 grasses. Savannas are also characterised by seasonal water availability, with the majority of rainfall being confined to one season of the year. Savannas can be associated with several types of biomes. Savannas are frequently seen as a transitional zone, occurring between forest and desert or prairie. Although the term savanna is believed to have originally come from a Native American word describing "land which is without trees but with much grass either tall or short", by the late 1800s it was used to mean "land with both grass and trees". It now refers to land with grass and either scattered trees or an open canopy of trees. Changes in fire management
low 20°C, while between the coasts the average summer high temperature range between 25°C to 30°C with occasional extreme heat in some interior locations exceeding 40°C. Canada's land ranges from fertile agricultural plains in the south to freezing tundras 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. The tundra is located near the Arctic region. It is cold and windy as well. The land is permafrost and desertlike. The growing season is 5060 days and that is why there grow plants such as mosses and lichens. 6. Animals
The coastal areas, where the majority of Australians lives, have the most dependable rainfall in Australia. Westerlies bring winter rains to parts of Australia's southern coast. Australia's east coast gets rain all year round. Between the tropical north and middle latitude south, lie Australia's dry core-deserts. Deserts in that area receive almost no rainfall. In most areas of Australia rainfall is low and unpredictable. In conclusion, Australia has three biomes: tropical, savannas and desert. States and territories: The Commonwealth of Australia is made up of 8 states and territories: Western Australia, Southern Australia, New South Wales, Queensland, Victoria, Northern Territory, the Australian Capital Territory and Tasmania. The biggest of them is Western Australia, which is almost one third of the whole Australia. The biggest towns are all in the eastern part of Australia. Sydney, with the population
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