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Ecology: Food Webs

food chains, food webs, succession

deforestation cycles back to primary succession
Ecological succession process by which an existing an existing ecosystem is gradually replaced by another
Climax community relatively stable collection of plants and animals
there is no soil in primary succession
lichens are initial species in primary succession
the process is slower in primary succession
the process is faster in secondary succesion
there is soil in secondary succesion
populations have characteristics such as food chains and types of graphs
types of graphs s - curve, j - curve
j - curve exponential growth
s - curve limiting factors and carrying capacity
food chains consist of producers, decomposers, and consumers
the 3 kinds of consumers are primary, secondary, and tertiary consumers
Nutrients in biosphere nitrogen, oxygen, carbon, phosphorous
Autotrophs manufacture carbohydrates, proteins, fats, vitamins
Heterotrophs consume plants and animals
Ecology is study of living things and the natural environment
10% rule Only 10% of the energy at one trophic level can be used at the next trophic level
Trophic levels feeding level
First trophic level producers
Second trophic level primary consumers
Food web complex feeding relationships from interconnected food chains
Food chain sequence of organisms related to one another through predator-prey relationship
Omnivores eat everything
Herbivores eat plants
Carnivores eat animals
Plants are producers
Heterotrophs are consumers
Created by: packers03