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20 Cards in this Set

  • Front
  • Back
Three approaches to ecology...
Descriptive
Functional
Evolutionary
Methods used to study ecology...
Theoretical (mathematical)
Laboratory
Field
Plant ecology versus animal ecology
-------
-------
Three hypotheses for speciation...
Allopatric
Parapatric
Sympatric
Allopatric speciation?
physical or geographical separation
Parapatric speciation?
part of population enters new habitat
no physical barrier
Sympatric speciation?
occurs within population
5 Units of natural selection:
G*** --- I*** --- S***
K*** --- G***
Gametic
Individual
Sexual
Kin
Group
------
------
*** mosquitoes are a vectors for Plasmodium (malaria).
Greek?
Anopheles
an =not ----- opheles =profit
translating to = useless
*** ***: Poisons/antibiotics of one organism limiting others distribution.
Greek?
Allelopathic agents
allelo = mutual
pathy = harm
-=- EXAMPLE -=-
Black Walnut Tree
*** VIA ***
Allelopathy
juglone toxin
-=- EXAMPLE -=-
Three species of European Crossbills
*** ***
Resource partitioning
***: Occurring w/in same geographical area.
Sympatric
***: Occurring in separate geographical areas
Allopatric
-=- EXAMPLE -=-
4 Pocket Gophers in Colorado
Habitat Limited by *** ***
Competitive Ability
-------
-------
***: An organism that cannot regulate its body temperature.
Poikilotherm
=
varied temperature
Greek Poikilos = ???
varied
-=- EXAMPLE -=-
Yarrow(Achillea lanulosa) in West N.A.
*** ***
Ecotypic Variation