Download Ecology Unit

Ecology Unit
 Canada’s endangered species
o Extinct, extirpated, threatened,
vulnerable
 1.4 Wolves in Yellowstone National
Park – video and section 1.4
 Organisms interact within the ecosystem
o Pests, biotic factors, abiotic
factors, community, population
o ecotones
 Energy in the ecosystems
 Photosynthesis
 Albedo effect
 Energy movement in the ecosystem
 Food chains, food webs- know how to
draw one. Know which way the arrows
should be pointing
 Autotrophs, heterotrophs
 Consumers: primary, secondary, tertiary
etc
 Trophic levels
 1st, 2nd law of thermodynamics
 Limits on energy transfer
 Pyramid of numbers – energy transfer
 Roles in the ecosystem
o Niche, exotic species, humans
and exotic species, zebra mussel
etc
 Cycling of matter in the ecosystem
 Organic, inorganic matter
 Carbon cycle
o Photosynthesis, respiration
o delays in the carbon cycle (why
does not all the carbon
participates in the cycle)
 Pesticides
o 1st, 2nd, 3rd generation pesticides
 Bioamplification
 Reservoirs for organic carbon, inorganic
carbon ( where is it stored while not in
the carbon cycle….animal shells, etc)
 Nitrogen cycle
 Nitrogen fixation – lightning, bacteria
 Nitrogen & decomposers
 Denitrification
 Changes in population
o Natality, mortality, immigration,
emigration
 Limits on population
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o Biotic potential
o Carrying capacity
Canadian biomes
o Tundra, boreal forest, temperate
deciduous forest, grassland
Components of the soil
o Litter, topsoil, humus, subsoil,
bedrock
Water beneath the soil
o Ground water, percolation,
water table, water cycle,
leaching
Abiotic factors in Lakes
o Littoral zone, limnetic zone,
profundal zone
Types of lakes
o Oligotrophic, eutrophic
Pollution
o Point, nonpoint sources of
pollution