Lecture 11- Interspecific competition Flashcards Preview

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Flashcards in Lecture 11- Interspecific competition Deck (16)
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1

What is the effect of competition on species 1 and 2?

-both negative

2

What is the effect of predation or parasitism on species 1 and 2?

-negative on 2 -positive for 1

3

What is the effect of mutualism on species 1 and 2?

-both positive

4

What is the effect of commensalism on species 1 and 2?

-positive on 2 -0 on 1

5

What is the effect of ammensalism on species 1 and 2?

-negative on 2 -0 on 1

6

What is interspecific competition?

-interactions between individuals of different species with a shared environment for a resource in limited supply

7

What does interspecific competition lead to?

-reduction in population rates (growth, survivorship or fecundity) of one or both species

8

What are the two strongest influences in interspecific competition?

-competitions and predation

9

What must be observed to prove competition is taking place?

-reduction in population rates between two species

10

What is interference interspecific competition?

-direct interaction between individuals of different species over limited resource such as fighting over it -bird trying to steal a catch from another

11

What is exploitative interspecific competition?

-where one species reduces or more efficiently uses a resource thus depleting it for other species -zebras eating grass, others can't have as much

12

Is interspecific competition symmetrical or asymmetrical?

-almost always asymmetrical

13

Describe what is happening to the POPULATION size when two species put together:

-the one going down, dies off= excluded by the superior competitor

--also affects the superior one= the population size of it is also lower

 

14

Who loves you more than anything?

Jack!

15

Describe what is happening to the carrying capacity of the two species:

-survive together, they both do a bit worse than on their own but can both survive at relatively good level of survivorship

16