Midterm 1 Flashcards Preview

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Flashcards in Midterm 1 Deck (32):
1

Clements

Communities are non-arbitrary units, highly organized "superorganisms"

2

alpha N2

converts species 2 individuals into an equivalent number of species 1

3

Naturalize

successfully invade

4

Gleason

Communities are arbitrary units, individualistic.

5

Logistic growth

dN/dt = rN (K-N//K)

6

David Lack

Darwin's finches, optimal clutch size

7

Odum brothers

Foundations of ecosystem ecology

8

Mutualism

++ mycorrhizae and plants

9

Commensalism

+0 epiphytes on trees

10

Charles Elton

"Animal Ecology", invasion biology, population dynamics

11

Exponential growth

dN/dt = rN

12

Competition

--

13

Amenalism

-0 sheep trampling grass

14

Gamma diversity

total species diversity of all communities in a landscape

15

G.E. Hutchinson

Niche n-dimensional hypervolume

16

Fundamental niche

n-dimensional hypervolume of values of all environmental variables that permit a species to survive and reproduce in the absence of other species

17

Joseph Connell

resource partition with Balanus and Chthamalus

18

Species richness

the number of species

19

Schluter

benthic and limnetic sticklebacks and character displacement

20

Community

a group of interacting species inhabiting a defined geographic area and time

21

Exploitation competition

individuals harm each other by taking up resources before others are able to

22

Georgii Gause

Competitive Exclusion Principle

23

Realized niche

observed range of environmental values over which a species can persist with biotic interaction

24

Parasitism

+-

25

Hypothesis

A testable explanation of an observed occurrence in nature; why something you observed is occurring; relate directly to research question

26

Predation

+-

27

Interference competition

individual A has a negative effect on individual B, and vice-versa

28

Robert MacArthur

resource partitioning, island biogeography theory

29

Beta diversity

change in diversity between communities

30

Evenness

the relative abundance (pi) of species

31

Alpha diversity

species diversity of a local community

32

Rosemary and Peter Grant

Darwin's finches and character displacement