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Chapter 4. Section 4.2 Terrestrial and Aquatic Biomes. Biomes. Biome – is a large geographical region with a specific range of temperatures and precipitation, and the organisms are adapted to those conditions of temperature and precipitation. There are two major types of biomes: Terrestrial
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Chapter 4 Section 4.2 Terrestrial and Aquatic Biomes
Biomes • Biome – is a large geographical region with a specific range of temperatures and precipitation, and the organisms are adapted to those conditions of temperature and precipitation. • There are two major types of biomes: • Terrestrial • Aquatic
Terrestrial Biomes in Canada • There are 4 terrestrial biomes in Canada: • Tundra • Taiga • Temperate Deciduous Forest • Grasslands
Terrestrial Biomes in Alberta • There are 3 terrestrial biomes in Alberta: • Taiga • Grasslands • Temperate deciduous forest
Taiga (Boreal Forest) Biome • Found in Northern Alberta and along the Rocky Mountains. • Abiotic factors: • Changeable weather • Soil contains some water and is acidic • Average precipitation
Biotic factors : - black and grizzly bears - wolverines - weasels - moose - deer - grouse - owls - spruce and pine (coniferous or cone-bearing) - shrubs, ferns, mosses and lichens
There are different ecosystems within the taiga depending on the amount of sunlight. • One of these ecosystems is in the muskeg. • Muskegs: - muskeg is the thin layer of soil above the permafrost that is swampy and boggy - in the summer when snow melts, the permafrost prevents the water from moving all the way to the water table, so it remains in the top layers, saturating them - muskegs are home to moss, lichens, small shrubs and tall grasses
Boreal Forest Muskeg
Grassland Biome • Found in central and southern Alberta. • Abiotic factors: • Fertile soils • Warm temperatures • Rapid decay • Rich humus layers • Less precipitation
Biotic factors: • Bison • Deer • Rabbits • Hawks • Yellow-bellied sapsuckers • Grasshoppers • Fescue grasses
Deciduous Forest Biome • Found in central Alberta. • Abiotic factors: • Increased sunlight and warmer temperatures • Rich fertile soil • More precipitation
Biotic Factors: • Black bears • Weasels • Moose • Deer • Woodpeckers • Deciduous trees (leaves) • Shrubs
Aquatic Biomes in Canada • There are 2 aquatic biomes in Canada: • Salt Water • Fresh Water
Salt Water Fresh Water
Aquatic Biomes in Alberta • There is 1 aquatic biome in Alberta: 1. Fresh water or lake ecosystem
Fresh Water Biomes • The fresh water biomes in Alberta are made up of lake ecosystems. • Lake ecosystems have 3 main zones: • Littoral zone • Limnetic zone • Profundal zone
Littoral Zones • The area from the shore of the lake or pond to the point where no more plants grow in the lake bottom. • It is warm, shallow and has lots of oxygen. • It has many photosynthetic organisms and is the most productive zone.
Limnetic Zones • The area of a lake or pond in which there is open water and sufficient light for photosynthesis to occur. • There are a few photosynthetic organism. • Contains consumers such as fish, tadpoles, and birds.
Profundal Zones • The region of a lake beneath the limnetic zone, in which there is insufficient light for photosynthesis to occur. • It has cool temperatures and is very dark. • There are few nutrients, low oxygen due to no photosynthesis and a high number of bacteria. • It contains low oxygen organisms such as carp.