Class notes 1.27

Class notes 1.27 - Bio 1006 1/27 Tundra too cold for any...

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Bio 1006- 1/27 Tundra: too cold for any trees to grow, some grow sideways Taiga: Coniferous forest Biomes, conifers, evergreen forests, spruces, firs, and pines, uniform height with few species of trees. Cool temps., ground is usually low in nutrients, high recycling of nutrients, little understory o trees adapted with reduced leaves (needles) to reduce moisture loss, and resins act as antifreeze, high in vitamin C (acts as an antifreeze in high concentrations) o Flexible downward branches to allow for heavy snow, grow year round, but most in the early spring Temperate Band: has seasons, as getting closer to the tropics, because of solar radiation is warmer and warmer o Deciduous forest- temp is seasonal, hardwood forests (oak and hickory) Broad delicious leaves are shed in winter (broad leaves adapted because they catch the most sunlight) Leaves accumulate and provide nutrients as they decompose, release nutrients which then are recycled Different species of hardwood based on regional climatic differences (oak, hickory, beech-maple, etc) Growth is limited to leafy season Generally diversity of tree, plant, and animal species Multilayered levels within forest (ground cover, understory, canopy species) Abundant water Species on the ground and all the way up to the canopy, supports many
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This note was uploaded on 01/18/2012 for the course BIO 1006 taught by Professor Staff during the Spring '10 term at Virginia Tech.

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Class notes 1.27 - Bio 1006 1/27 Tundra too cold for any...

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