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Sympatric speciation - populations become
reproductively isolated within the same area
Extinction = the disappearance of a species from Earth
Some species are more vulnerable to extinction than
others ? because…. They are picky/ cant adapt well
Niche - resources
Realized niche- you have to share and effect others
Fundamental niche ideal
Allopatric speciation separated by location but same
species
Organizational Ecological
Population ecology quantative population/ same spsecies,
same place, same time
Community ecology - interactions
Ecosystem ecology living and non living
Habitat = the environment in which an organism lives
Habitat selection = non-random use of available habitat
Random - trees
Uniform penguins space for eggs/ territory
Clumped fish – b/c social or good environment
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Climax aka longest lasting survivors, best adaption, not
much higher than these trees, more competition than pioneer
level
Endemic species: species with a small geographic
distribution
Small populations: lack genetic diversity
mass extinction: 50 95% of all life gone
Nebular theory -
Mantle – dense
Core – iron
J outer layer, unranus
Terresteral inner planets– venus
Early earth hot, dense, little free oxygen?
Earth 4.4 Ga
Sun 4.5 Ga
Universe 14 Ga
Density dependent influence affected by pop density
Density independent outside factors unrelated to pop
density
Invative - exotic
Succession predictable
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Document Summary

Sympatric speciation - populations become reproductively isolated within the same area. Extinction = the disappearance of a species from earth. Some species are more vulnerable to extinction than others ? because . Realized niche- you have to share and effect others. Allopatric speciation separated by location but same species. Population ecology quantative population/ same spsecies, same place, same time. Ecosystem ecology living and non living: habitat = the environment in which an organism lives, habitat selection = non-random use of available habitat. Uniform penguins space for eggs/ territory. Clumped fish b/c social or good environment www. notesolution. com. Climax aka longest lasting survivors, best adaption, not much higher than these trees, more competition than pioneer level: endemic species: species with a small geographic distribution. Small populations: lack genetic diversity mass extinction: 50 95% of all life gone. Density dependent influence affected by pop density. Density independent outside factors unrelated to pop density. Secondary succession alters but not all organisms are eliminated.

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