Ecology: Species Interactions Flashcards Preview

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Flashcards in Ecology: Species Interactions Deck (27)
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2
Q

A species can exist alone

A

False

3
Q

Mutualism

A

+/+

4
Q

Commensalism

A

+/0

5
Q

Amensalism

A

-/0

6
Q

Competition

A

-/-

7
Q

Predation

A

+/-

8
Q

Competition occurs

A

-inter/intra specifically-over resources

9
Q

Outcomes of completion

A

CoexistenceOne or the other becomes extinct

10
Q

What was the Gause experiment?

A

Grew yeast in competitionStarted with isolated growth then grew them together and one species went extinct

11
Q

Gause’s hypothesis-the competitive exclusion principle

A

No two species can occupy the same ecological niche simultaneously (complete competitors)

12
Q

Niche (fundamental- , realized-)

A

Biological role of an organism within the environment”n-dimensional hyperspace” it occupiesFundamental- all possible biological spacesRealized- actual space occupied due to constraints

13
Q

Basic outcome of competitive exclusion principle

A

One species gets kicked out

14
Q

Aphytis

A

Genus for wasps

15
Q

Difference between genus and species

A

Genus is one level up ad it’s always capitalized when species i not

16
Q

List the order of the wasps they introduced to take care of orange pests

A

ChrysomphaliLinganensisMelinus

17
Q

What happened in the orange pest introduction after each wasp was introduced

A

Chrysomphali removed pests but not allLinganensis introduced to increase efficiency but competitively excluded ChrysomphaliMelinus introduced to displace Linganensis

18
Q

After being excluded, there were still species of Linganensis on the coast, how come?

A

No competition with others on the coast

19
Q

Situations where competitive exclusion does not occur

A

Unstable environmentsFluctuating environmentsNo competition

20
Q

In the absence of predators, prey populations grow _____

A

Exponentially

21
Q

Predation can ____ prey and alter _____

A

Reduce prey or alter distribution

22
Q

5 basic predatory types

A

Herbivore, carnivore, parasite, parasitoids, cannibalism

23
Q

3 projected ways prey and predator can live

A

EquilibriumOscillationsExtinctions

24
Q

Optimal foraging

A

Predators switch to other prey as current one runs low

25
Q

Anti predator strategies are called

A

Adaptations

26
Q

Types of anti predator strategies

A

Chemical defenseCamouflageIntimidationAgilityArmorMass reproduction

27
Q

Intrinsic factors of population dynamics

A

BehavioralPhysiological

28
Q

Extrinsic factors

A

AbioticBioticResources