ch 6

Question 0

constantly changing

Answer 0

dynamic

Question 1

division of a limiting resource based on differences in species behavior or morphology

Answer 1

resource partitioning

Question 2

organisms that lay eggs inside other organisms

Answer 2

parasitoids

Question 3

occurs on surfaces where soil is present but plants have been removed

Answer 3

secondary succession

Question 4

how individuals within a population are distributed with respect to one another

Answer 4

population distribution

Question 5

species whose survival rate declines early in life

Answer 5

type 3 survival curve

Question 6

communities in late-stage succession with more complex species; succession ends

Answer 6

climax stage

Question 7

populations max potential for growth (resources are not limited)

Answer 7

intrinsic growth rate (r)

Question 8

organism parasite lives in/on

Answer 8

host

Question 9

closely grouped distribution of individuals within a population

Answer 9

clumped distribution

Question 10

behavioral, morphological, chemical, mimicry

Answer 10

defenses against predation

Question 11

limit of how much a ecosystem can sustain

Answer 11

carrying capacity (k)

Question 12

predictable replacement of one species by another over time

Answer 12

ecological succession

Question 13

ratio males-females

Answer 13

sex ratio

Question 14

competition
predation
mutualism
commensalism

Answer 14

categories of species interactions

Question 15

species with high intrinsic growth rates whose abundance fluctuates with overshoots and dieoffs

Answer 15

r-selected species

Question 16

competition

Answer 16

struggle between individuals to obtain a limiting resource

Question 17

predator-prey population oscillation

Answer 17

more prey= more predator
more predator=less prey
less prey= less predator
repeat process

Question 18

mutualism

Answer 18

interaction between species which both increase species fitness

Question 19

keystone species

Answer 19

species that play a crucial role in a community

Question 20

type 2 survival curve

Answer 20

species survival rate stays constant

Question 21

density-dependent factors

Answer 21

factors that influence species fitness or population size

Question 22

symbiotic relationship

Answer 22

relationship of 2 species that live in close association

Question 23

metapopulations

Answer 23

spatially distinct populations convector by occasional movement between them which helps overall persistence

Question 24

predator-mediated competition

Answer 24

organism who reduces abundance of superior competitor and allows inferior competitors to compete

Question 25

competitive exclusion principal

Answer 25

2 species cannot exist when competing for the same limiting resource

Question 26

corridor

Answer 26

strips of habitats that allows individuals to traverse between populations

Question 27

species reduce competition by evolving in body and shape

Answer 27

morphological resource partitioning

Question 28

divisions of populations by natural or human defined boundaries based on population density

Answer 28

management zone

Question 29

keystone species are...

Answer 29

ecosystem engineers

Question 30

factors that influence individuals fitness probability not related to population size

Answer 30

density-independent factors

Question 31

organisms who rarely kill their prey consume only a fraction of their prey live on the organism

Answer 31

parasites

Question 32

species with low intrinsic growth rates whose abundance stays near carrying capacity

Answer 32

k-selected species

Question 33

species whose survival rate declines late in life

Answer 33

type 1 survival curve

Question 34

mathematical equations used to predict population size

Answer 34

population growth models

Question 35

shape made by exponential growth

Answer 35

J

Question 36

habitats larger in size and closer to species leads to more colonization, less extinction, and more speciation

Answer 36

theory of island biogeography

Question 37

species reduce competition by utilizing same resource in different habitats

Answer 37

spatial resource partitioning

Question 38

die off

Answer 38

rapid decline in population