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MS3-7 Ecology & Terrestrial Biomes

Terms in this set (15)

ecology
the study of interactions between abiotic and biotic factors in an environment
invasive species
a species introduced by mistake and that has no natural predator (zebra mussels)
direct exclusion
organisms that don't thrive in a biome
indirect exclusion
organisms that are out competed but can thrive in the biome
greenhouse effect
gases in the atmosphere that absorb heat
Radiation from the sun warms surface of the Earth. The surface releases heat at night, the gases absorb and re-release the next day
2 most important factors contributing to species abundance & distribution in aquatic biomes
light determines where plants distribution is limited
proximity to land determines the amount of nutrients available
other factors
salinity
temperature
nutrient content
oxygen levels
pH levels
pollution
rivers
flowing body of water flanked by land with a high nutrient content (one way)
tundra
permafrost -frozen ground
no trees (taproots can't reach)
short summer (growing season)
few amphibians and reptiles
Chaparral
cool, wet, winters & hot, dry summers
nutrient poor soil
species adapted to hot dry conditions
Boreal forest
large terrestrial biome
coniferous trees
low plant diversity with more rainfall than the tundra but less than grassland
desert
warm & cold deserts
characterized by extreme temperatures and scarcity of moisture
temperate deciduous forest
fertile soil
higher species diversity
discreet seasons
tropical forest
warm temp with long hours of daylight
fast decomposition
high biodiversity
grassland
moderate annual precipitation
high insect and mammal diversity
fertile soil
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