• Remember! – Working together, and helping everyone to reach
their full potential will benefit everyone in this class. We are all interconnected.
• Keep an eye out for “The-Owl” and raise your hand as soon as you see him.– He will be hiding somewhere in the slideshow
“Hoot, Hoot”“Good Luck!”
• Keep an eye out for “The-Owl” and raise your hand as soon as you see him.– He will be hiding somewhere in the slideshow
“Hoot, Hoot”“Good Luck!”
• Area of Focus: Competition.
• What is competition?
• Define the word competition as it might be related to the field of ecology.
• Competition: The interaction between organisms or species, in which the fitness of one is lowered by the presence of another.
• Competition: The interaction between organisms or species, in which the fitness of one is lowered by the presence of another.
Fitness:
• Competition: The interaction between organisms or species, in which the fitness of one is lowered by the presence of another.
Fitness: Good health.
• Four types of competition– -– -– -– -• -
• Interspecific competition: Over resources between different species.
• Interspecific competition: Over resources between different species.
• Intraspecific competition: The same species compete for resources.
• Intraspecific competition: The same species compete for resources.
• Activity! A little interspecific competition.– Note – This is different as we are not competing over
resources. More fun however.– Visit
http://www.mathsisfun.com/games/connect4.html
• Activity! Try and build the tallest Domino tower possible with the amount given.– I will visit each group to help / see how you are
doing /
• Activity! Try and build the tallest Domino tower possible with the amount given.– I will visit each group to help / see how you are
doing / interfere and disrupt the construction without you knowing that I am interfering.
• Interference competition: fighting / disrupting.
• Interference competition: fighting / disrupting.
• Birds will often chase other birds away from habitat.
• Fish will also protect their territory and chase away other fish.
• Exploitative: Share resources.
• Exploitative: Share resources.
• In a pack of wolves, there is a strict hierarchy of who feeds first.
• In a pack of wolves, there is a strict hierarchy of who feeds first.– First the alpha male or female will eat.
• In a pack of wolves, there is a strict hierarchy of who feeds first.– First the alpha male or female will eat.– Then the other wolves of the group.
• In a pack of wolves, there is a strict hierarchy of who feeds first.– First the alpha male or female will eat.– Then the other wolves of the group. – Each wolf has to respect it’s position in ranking, if not
they will be corrected by the wolves that are higher in ranking.
• Theory– Competitive Exclusion: One thrives, the other goes
extinct.• No two species with the same job can coexist.
• Competitive exclusion theory: All organisms exist in competition for available resources.
• Competitive exclusion theory: All organisms exist in competition for available resources.– Those that create a competitive advantage will
flourish at the expense of the less competitive.
• Competitive exclusion theory: All organisms exist in competition for available resources.– Those that create a competitive advantage will
flourish at the expense of the less competitive.– No two organisms can have the same niche.
• Competitive exclusion theory: All organisms exist in competition for available resources.– Those that create a competitive advantage will
flourish at the expense of the less competitive.– No two organisms can have the same niche.– One species thrives,
• Competitive exclusion theory: All organisms exist in competition for available resources.– Those that create a competitive advantage will
flourish at the expense of the less competitive.– No two organisms can have the same niche.– One species thrives, the other goes extinct.
Paramecium Species A
Paramecium Species A
Paramecium Species B
Population graphs when grown separately
When introduced to the same environment
Paramecium species B population declines until extinction.
• Competition Activity Quiz in Notes
• Activity Quiz! 1-10 + bonus• Name the type of competition.• Interspecific, Intraspecific, Interference,
Exploitative
1
2
3
4
5
6
7
8
9
10
*11 Bonus “Which pro wrestler am I?”
“I can’t stand these Quiz Wiz
things!”
• Answers to Quiz – Types of competition.
1
1
2
2
3
Intraspecific competition: The same species compete for resources.
3
4
5
5 Intraspecific
6
Interference competition: fighting / disrupting.
6
7
Exploitative: Sharing resources.7
8
Interspecific competition: Over resources between different species.
8
9
9 Interference competition: fighting / disrupting.
9 Interference competition: fighting / disrupting.
10
10 Interspecific competition: Over resources between different species.
*11 Bonus “Which pro wrestler am I?”
“I can’t stand these Quiz Wiz
things!”
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