chapter 46 + 47 - bsc2011
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22 Terms
food chain
more simple linear way of showing how energy cycles through an ecosystem
food web
complex interconnected chains
what are the two food webs
grazing and detrital
ecosystem modeling types
conceptual, analytical, simulation
conceptual
flow charts
analytical
math
simulation
complex computer algo
how is energy lost through the tropic levels?
heat
biological magnification
toxic substances accumulate more u go up trophic levels
what is biodiversity?
a measurement of the number/abundance of species present in a given area
species biodiversity
number of species n their abundance in a given area
genetic biodiversity
genetic variation present in a population or
ecosystem diversity
number of diff ecosystems in given area
what areas have more biodiversity
when near equator
how many mass extinctions
five
what is holocene
6th extinction, not mass
when is holocene
400 yrs to now
IUCN
monitors threats to species, authority on species conservation
CITES
prevents capture of animals as pets
ESA
tracks and protects endangered species
MBTA
protects birds