Logo

Go on. Explore!

lvl 0 • 0 xp

lvl 1

HomeMarketDecksInterests
Competition

Competition

memorize.aimemorize.ai (lvl 286)
Star 0%
Star 0%
Star 0%
Star 0%
Star 0%
(0)
(0)
(0)
21 cards
()
Section 1

Preview this deck

Competition

Front

1 / 21

Competition Prep
Star 0%
Star 0%
Star 0%
Star 0%
Star 0%

0.0

0 reviews

5
0
4
0
3
0
2
0
1
0

Active users

0

All-time users

0

Favorites

0

Last updated

6 years ago

Date created

Mar 1, 2020

Cards (21)

Section 1

(21 cards)

Competition

Front

-negative interaction where organisms are harmed by the association -occurs intraspecifically or interspecifically -occurs over resources (food, space, light, nutrients, etc.)

Back

Parasitism

Front

a type of predation

Back

Example of competition

Front

lion and hyena - hyena tries to steal the kills of the female lions and the male lion must fight for it

Back

Mutualism

Front

(+ , +) both species benefit from the association

Back

3 situations in which competitive exclusion does not occur

Front

1. unstable environments (never reach equilibrium, low density of organisms) 2. environments in which species do not compete (unlimited resources or partitioning) 3. fluctuating environments that reverse the direction of competition before extinction occurs

Back

Examples of mutualism

Front

1. large African mammals and tick birds - birds eat ticks off animals, birds get food source 2. sea anenome and zooxanthellae - zooxanthellae get protected from predation by the anenome's sting; sea anenome gets a food source from glucose produced by the algae during photosynthesis

Back

5 types of interactions

Front

1. Mutualism (+ , +) 2. Commensalism (+ , 0) 3. Amensalism (- , 0) 4. Competition (- , -) 5. Predation (parasitism) (+ , -)

Back

Lotka-Volterra Competition Model

Front

dN1/dt = r1N1((K1 - N1 - alphaN2)/K1) dN2/dt = r2N2((K2 - N2 - betaN1)/K2)

Back

Competition

Front

(- , -) both species are harmed by the association

Back

Fundamental niche

Front

the multitude of conditions in which an organism can survive and multiply

Back

Examples of parasitism

Front

tapeworms, intestinal roundworms, bot flies (dig into human skin and lay eggs that then hatch into flies)

Back

Gause's yeast experiments

Front

-species 2 was driven to extinction by species 1, which experienced no change to its growth rate -data fit the Lotka-Volterra equations

Back

Realized niche

Front

where an organism actually exists due to ecological constraints

Back

Predation

Front

(+ , -) one species benefits and the other is harmed in the association

Back

Commensalism

Front

(+ , 0) one species benefits from the association, the other is unaffected

Back

Example of amensalism

Front

walnut shading smaller stature tree species - small tree is shaded and cannot get nutrients, walnut gets all the light, water, nutrients and doesn't even know it's competing

Back

Examples of commensalism

Front

1. shark and remora - remora gets leftover food from the shark's feeding frenzy and hitchhikes 2. cockroach and human - cockroach gets food from human's home

Back

Examples of predation

Front

1. any predator and prey ( 2. humans and parasites (parasitism)

Back

Competitive exclusion principle

Front

-no 2 species can occupy the same ecological niche simultaneously (complete competitors cannot coexist) -also called the Gause hypothesis

Back

Niche

Front

the biological role of an organism within the environment

Back

Amensalism

Front

(- , 0) one species is harmed by the association, the other is unaffected

Back