chapter 5 biodiversity species interactions, and population control sea otters thick fur each day a...
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Chapter 5Biodiversity Species Interactions,
and Population ControlSEA OTTERS• Thick fur• Each day a sea otter consumes
about ¼ of it’s weight in clams, shellfish, abalone, crabs, etc.• Hunted almost to extinction by the
early 1900’s• Became an Endangered Species• Discovered they play a major role as
a keystone species in the kelp forests of the pacific.
Competition
• Intraspecific: Competition between members of the same species• Interspecific: Competition between members of different Species
Species Interactions(+) = benefit (-) = harm (0) = no affect•Mutualism +/+•Competition -/-•Commensalism +/0•Parasitism +/-•Amensalism -/0 •Predation +/-
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