Term
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Definition
| a major life zone characterised by the dominant plant life present |
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Term
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Definition
| low temperatures, ground continuously frozen (permafrost). Soil is poor, cannot be penetrated by roots. Alpine/arctic tundra |
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Term
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Definition
| steppe, prairies and pampas - dry, hot summer, cold winter. plants: perennial grasses, broad-leaved flowering plants which flower at begining or end of growing season when grasses less dominant. pasture for grazing animals. Savannah - tropical grass land |
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Term
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Definition
| sub tropical zones, rain fall limited and unpredictable. plants: ephemerals and succulents. Camels - body temp change 7 degreesC, allows conservatin of water in daylight |
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Term
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Definition
| areas of heavy rainfall near the equator. greatest biodiversity. animals live in canopy, feed on abundant fuits. soil below cupports non-vertebrates. |
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Term
| Temperate deciduous forests |
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Definition
| broad leaved deciduous trees with adequate moisture. ground layer, shrub layer, understorey, canopy. Annual rhythm to growth |
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Term
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Definition
| mild temperate regions - rain abundant winter but dry summers. climax vegetation - evergreen shrubs. |
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