Chapter 4 Species Interactions and Community Ecology Flashcards Preview

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Flashcards in Chapter 4 Species Interactions and Community Ecology Deck (24):
1

Competition

Organisms seek same limited resource. Intra or interspecific competition

2

Competitive Exclusion

Complete dominance of species over another, removal

3

Fundamental Vs Realized Niche

Fundamental is what they would, realized is w/comp

4

Resource Partitioning

Species divide resources by specializing in different ways

5

Predation

One species hunts other, drives evolution for both

6

Parasitism

One organism depends on host for nourishment while harming host.

7

Coevolution

Two species responding to the other's adaptations

8

Herbivores

Plants only

9

Mutualism

Two or more species benefit from interacting

10

Symbiosis

Physically close association

11

Pollination

Encounter only once

12

Autotrophs

Self feeding, first trophic level

13

Primary consumers

Eat produces, second level, usually herbivore

14

Secondary consumers

Eat primary, third level

15

Tertiary

Feed at higher trophic levels

16

Detritivores and decomposers

Scavenge; eat dead and recycle

17

Keystone species

Species with strong/wide reaching impacts far out of proportion of its abundance

18

Resistance

Able to withstand distrubance/recover from it, resist change

19

Resilience

Changes in response to disturbance

20

Primary succession

Biotic community built from scratch

21

Secondary succession

Some left over, a building block

22

Pioneer species

Arrive first and colonize new substrates. Lichens

23

Climax community

Succession over, new habitat that replaces it

24

Biome

Regional complex of similar communities. recognized by dominant plant type and vegetation structure. Which 10 are there?