APES Biomes Flashcards
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| 15082796371 | DESERT | - low moisture levels and infrequent, unpredictable precipitation - plant adaptations to conserve water and protect from predation - warm, dry, descending air creates desert bands at 30 degrees N and S - sand dunes are rare away from the coast - soil organic layer extremely thin, rocky and dry - sparse but species-rich community dominated by shrubs and small trees - animals- structural and behavioral adaptations (hide in burrows or rocky shelters to escape daytime heat, obtain moisture from foods, highly concentrated urine and dry feces) |  | 0 |
| 15082800811 | GRASSLANDS/SAVANNAS | - rich biological communities of grasses, seasonal flowering plants - seasonal cycles from temperature and precipitation (rainy season, dry season) - good farmland mostly found on dry continental interiors (many human disturbances) - few trees bc lower levels of rainfall, daily and seasonal temperature ranges - large grazing animals, ove |  | 1 |
| 15082800812 | TUNDRA | - Far N and S - extremely cold - long/dark winters - Summer- the top few centimeters are unfrozen (rest permafrost) - No deep roots so dominant plants are small (shrubs, sedges, grasses, mosses, lichens) - Animals are adapted to climate and low food supply (migration, hibernation) - Oil and natural gas in artic |  | 2 |
| 15082823616 | CONIFER/BOREAL FOREST | - Regulated by fire - Mid levels of rain, conifers can survive droughts - Boreal= conifers + deciduous trees - 45 and 50 N latitude, Taiga is northernmost edge - Cooler Temperatures |  | 3 |
| 15226119237 | BROAD-LEAVED DECIDUOUS FOREST | - Lots of Summer growth during rainy season - Higher rain than conifer forest - 4 seasons, diverse species - Tropical rain forest has high levels of rain and different species - Deforestation is a major problem (for lumber or for land in tropical rainforest areas) |  | 4 |
| 15226146473 | AQUATIC ECOSYSTEMS | *- Estuaries* ~ Brackish (mix of salt and fresh) ~ Mud flats, Rich sediments, High productivity and diversity *- Wetlands* ~ Land surface covered in water for at least part of year ~ Bog: w/ or w/o trees, waterlogged soils w peat, precipitation fed ~ Swamp: w trees, flowing water ~ Marsh: w/o trees, flowing water |  | 5 |