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32 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Ecology
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the study of interactions between organisms and their environments
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Abiotic
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non-living components
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Biotic
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living components
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Ecological time
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hours/minutes days
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Evolutionary time
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decades, centuries, longer
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Dispersal
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how organisms are distributed on the planet
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Climate
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prevailing weather in an area
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What two factors determine climate?
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temperature and water
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From shallowest to deepest what are the 3 aquatic zones
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photic, aphotic, , benthic
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None
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Photic
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where photosynthesis can occur because there is enough light
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Aphotic
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little light
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Thermocline
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narrow strew of rapid temperature change
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Benthic zone
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bottom substrate
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Benthos
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community of organisms
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Detritus
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dead organic matter, food for benthos organisms
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What are the three kinds of lakes?
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oligotrophic, eutrophic, mesotrophic
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Oligotrophic
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deep, nutrient poor, clear water (Tahoe)
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Eutrophic
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shallow, high nutrient, (lake Wilson)
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Mesotrophic
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moderate amounts of nutrients and photosynthetic production
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Moving water
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nutrients depend on overhanging vegetation, usually high oxygen
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Inertial zone
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where land meets water, organisms attach to things or bury themselves
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Netric zones
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shallow regions over continental shelves
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Oceanic zone
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very deep water past the continental shelves
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Pelagic zone
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oven water of any depth, nutrient concentration is lower
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Benthic zone
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seafloor bottom, nutrients reach here when organisms die and sink
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Tropical forests
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equator, most complex, constant temperature and rainfall, canopy
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Savanna
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tropical grassland with scattered trees, occasional fire and drought, large herbivores
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Desert
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sparse rainfall
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Chaparral
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spiny evergreens at midlatitudes along coasts
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Temperate grassland
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all grasses, seasonal drought, occasional fires, large mammals
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Coniferous forest
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cone-bearing trees, cooler, keep needles
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Tundra
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permafrost, very little precipitation
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