Foundational
Principles of Evolution:
1.
There are
different “types” of animals
2.
Animal “types”
form unique populations
3.
Population
members have individuality
a.
4.
Individual
characteristics are not equally successful or favored
a.
Principles
proposed by Darwin and Wallace:
5.
Success or
superiority is context specific
6.
Overpopulation
occurs and creates intrapopulation competition
a.
Competition –
b.
Competitive
interactions -
c.
Competitive
Exclusion – one population usurps all available resources
i.
No competitive
exclusion
1.
2.
3.
a.
b.
c.
d.
d.
Carrying
Capacity –
i.
Struggle for
Existence, Law of the Minimum
e.
Character
displacement vs. Character release
7.
Competition
causes “inferior” individuals to procreate less successfully
a.
Intrapopulation
competition “selects” for beneficial (superior) traits
8.
Successful
“favored” traits become prevalent in future generations
People:
·
Justus von
Liebig
·
Darwin
·
Lewis &
Clark
·
Lamark
·
Thomas Malthus
·
Wallace
·
Thomas
Jefferson
·
Gause
·
Plato
·
Traveled on
the Beagle, hypothesized at home
·
Collected
& sold organisms, did field work
·
Collected
fossils, sent explorers to find mammoth
·
Sent on an
expedition to discover new animals
·
Believed
fossils were extinct animals
·
Organisms have
true “essence”
·
Showed
competitive exclusion with bacteria
·
Economist that
studied limitations on carrying capacity “struggle for existence”
·
Developed the
law of the minimum
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