PPt.5: Terrestrial Biomes Unit 1 Flashcards
Distribution of major ecological communities is determined by _____ + _____
Temperature and Precipitation
1) Differences in the amount of solar radiation falling on earth’s surface
2) The earth’s daily rotation on its axis and yearly revolution around the sun
3) The distribution of the earth’s continents and oceans
4) The elevation of land mass
- These all determine _____
Climate
The earth is a giant solar-powered heat machine, and the energy required by living organisms comes in almost all cases directly or indirectly from the sun
Solar Radiation
The earth orbits around the sun while revolving on its own axis
Earth’s Rotation
4 Influences of local habitat types
1) Soil Differences
2) Sunlight
3) Wind
4) Disturbances
Short-term fluctuations in temperature, humidity, cloud cover, wind and precipitation
Weather
Refers to the overall patterns of weather that prevail in a region over a year
Climate
This picks up moisture from the oceans and seas, carrying it to land
Winds
Encircling the top of the world is a region of cold and dry conditions
Tundra
Develops on tops of tall mountains
Alpine Tundra
Underneath surface is a layer of permafrost
Arctic Tundra
Dominated by continuous stands of cone-bearing evergreen trees
Coniferous Forest
Forest belt in the Northern Hemisphere
Boreal or Taiga
South of Canada forest
Montane Coniferous forest
Pacific Coast from Alaska to Northern California has tallest trees that are valued for timber
Temperate Rainforest