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12 Cards in this Set
- Front
- Back
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Tundra
Abiotic |
long cold winter & cool short summer
short growing season low precipitation permafrost; nutrient poor soil |
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Tundra
Biotic |
short vegetation
low annual primary productivity low diversity |
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Boreal Coniferous Forest
Abiotic |
cold winter & short, mild summer
humid: low precipitation & low evaporation acid and infertile soil |
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Boreal Coniferious Forest
Biotic |
low productivity, but active most of the year
continous litterfall; slow litter decomposition low species diversity little vertical stratification |
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Deciduous Forest
Abiotic |
warm summer & cool to cold winter
fairly high precipitation well distributed |
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Deciduous Forest
Biotic |
active only portion of the year
litterfall seasonal and massive; rapid litter decomposition high turnover of nutrients vertical stratification |
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Grassland
Abiotic |
variable annual precipitation
P/E 0.2-0.8 periodic drought rolling to flat terrain |
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Grassland
Biotic |
adapted to fire and grazing; often maintained by fire
grazing and burrowing animals |
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Desert
Abiotic |
low annual precipitation
infrequent large rainfall events P/E ratio < 0.2 wide temperature fluctuation |
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Desert
Biotic |
ephemerals
succulents & phreatophytes |
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Southeastern Evergreen Forest
Abiotic |
hot summer & mild winter
long growing season high fire frequency |
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Southeastern Evergreen Forest
Biotic |
many fire dependent communities
many fire adapted tree species |
