Transcript Is this good?

 Niche: The role that an organisms has in an ecosystem.
 Including:
 Food sources
 Reproductive strategies
 Shelter
 Environmental Conditions
 Interactions with their environment and other organisms
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Africa
North America
Kangaroo Rat
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Jerboa
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North America
Bald Eagle
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Africa
African Fish Eagle
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Australia
South America
Sloth
Koala
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sadfhttp://static.guim.co.uk/sysimages/Education/Pix/pictures/2013/1/17/1358446759827/Athree-toed-tree-sloth-h-008.jpg
 What happens when two different interacting
species of organisms use the same niche?
 Competitive Exclusion: Two interacting populations of
species using the same niche will not maintain stable
population sizes.
 Long term, one of two things will happen…..
1.
The species with the advantage will cause the other
to become locally extinct.
1.
The species with the advantage will cause the other
to become locally extinct.
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2. Species will change their behavior or adapt to fill
another niche
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 Fundamental Niche: the full niche that a species is
capable of using without any competition
 Realized Niche: The actual niche that a species uses
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Competitive exclusions causes the difference between
fundamental and realized niches
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 What might be some consequences of introducing a
new species of small insect eating bird into Santa
Maria?
 What type of human activities might create more
competitive exclusion and local extinction between
organisms? Is this good?
And NUH is the letter I use to spell Nutches,
Who live in small caves, known as Niches, for hutches.
These Nutches have troubles, the biggest of which is
The fact there are many more Nutches than Niches.
Each Nutch in a Niche knows that some other Nutch
Would like to move into his Niche very much.
So each Nutch in a Niche has to watch that small Niche
Or Nutches who haven’t got Niches will snitch.
Dr. Seuss – On Beyond Zebra (1955)