Habitat Type of environment in which a population or species regularly lives –WHERE it lives...
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![Page 1: Habitat Type of environment in which a population or species regularly lives –WHERE it lives Monkey – tropical rain forest Frog – pond Palm tree – tropical.](https://reader038.fdocuments.net/reader038/viewer/2022103100/56649eec5503460f94bfd73f/html5/thumbnails/1.jpg)
Habitat
• Type of environment in which a population or species regularly lives–WHERE it lives• Monkey – tropical rain forest• Frog – pond• Palm tree – tropical beach
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Habitat
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Habitat
![Page 4: Habitat Type of environment in which a population or species regularly lives –WHERE it lives Monkey – tropical rain forest Frog – pond Palm tree – tropical.](https://reader038.fdocuments.net/reader038/viewer/2022103100/56649eec5503460f94bfd73f/html5/thumbnails/4.jpg)
Habitat
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Niche
• The role of an organism in the ecosystem– What it does• Spider –makes webs and eats insects• Oak tree – form part of the forest and produce acorns• Humpback whale – eat plankton and krill
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Niche
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Niche
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Niche
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Niche
• Competition– If two species try to share the same niche in the
same habitat, they will compete for resources
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Niche
• Competitive exclusion– The extinction of a population due to direct
competition with another species for a resource
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Niche
• Realized niche– The actual role that the organism filling
• Fundamental niche– Any of the roles that an organism can fill
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![Page 13: Habitat Type of environment in which a population or species regularly lives –WHERE it lives Monkey – tropical rain forest Frog – pond Palm tree – tropical.](https://reader038.fdocuments.net/reader038/viewer/2022103100/56649eec5503460f94bfd73f/html5/thumbnails/13.jpg)
Niche
• Niche Diversity– The number of different niches in an ecosystem– Depends on type of biome
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Niche
• Predator– An organism that actively hunts other organisms
• Keystone Predator– A predator that promotes a great niche diversity in
its habitat• Prey– The organism that is hunted
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The sea otter Enhydra lutris can be considered a keystone predator because its voracious feeding on herbivorous sea urchins allows kelps to flourish along the rocky coast, along with an entire ecosystem associated with these large marine plants.
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Evolution
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Convergent Evolution
converged
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Convergent Evolution
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Convergent Evolution
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Divergent Evolution
Journal
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Coevolution
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Coevolution
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Coevolution
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Speciation
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Competitive Exclusion
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Fundamental vs. realized niche
Chthalamus barnacles can live in both deep and shallow intertidal zones (its fundamental niche).
Competition from Balanus forces Chthalamus to occupy a smaller realized niche on higher, drier habitat.
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Adaptations
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Adaptations
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Survival of the fittest
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Natural Selection