Ecology Interactions Unit Competition

Remember! Working together, and helping everyone to reach their full potential will benefit everyone in this class. We are all interconnected.

“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!”

“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

3 Intraspecific competition: The same species compete for resources.

4

5

5 Intraspecific

6

Interference competition: fighting / disrupting. 6

7

Exploitative: Sharing resources. 7

8

8 Interspecific competition: Over resources between different species.

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!”