bio ch 53 (.1, .2, .3)

studied byStudied by 271 people
5.0(11)
get a hint
hint

competition

1 / 61

encourage image

There's no tags or description

Looks like no one added any tags here yet for you.

62 Terms

1

competition

when two organisms fight over a limited resource such as food, water, space, mates, light

New cards
2

intraspecific competition

when two organisms of the SAME species compete for the same resources

New cards
3

interspecific competition

when two DIFFERENT species are in competition for the same resources

New cards
4

competitive exclusion principle

the local elimination of one of the two competing species

New cards
5

ecological niche

the total of an organism's use of the biotic and abiotic resources in its environment (or, DON'T USE THIS DEFINITION: an organism's job/role in its environment)

New cards
6

occupy the same niche

two species cannot...

New cards
7

resource partitioning

the division of environmental resources by coexisting species such that the niche of each species differs by one or more significant factors from the niches of all coexisting species

New cards
8

sympatric population

new species evolve from a single ancestral species while inhabiting the SAME geographic region (s stands for...)

New cards
9

sympatric, allopatric

characteristics are more lively to be different in _________ populations of two species than in __________ populations of the same two species

New cards
10

allopatric population

geographic speciation that occurs when biological populations of the same species become isolated from each other to an extent that prevents/interferes with genetic interchange

New cards
11

predation

a +/- interaction between species in which one species, the predator, kills and eats the other, the prey (victim)

New cards
12

cryptic coloration

when an animal is camouflaged by its coloring

New cards
13

aposematic coloration

when a poisonous animal is brightly colored as a warning to other animals - the animal is posing

New cards
14

batesian mimicry

when a HARMLESS animal has evolved to mimic the coloration of a poisonous model animal

New cards
15

mullerian minicry (NOT MUNERIAN sorry guys i cant read my own handwriting)

when two bad tasting (one poisonous, one bad tasting ??? but idk) species resemble each other so that predators will learn to avoid both of them equally

New cards
16

herbivory

a +/- relation in which a herbivore eats parts of a plant/algae

New cards
17

parasitism

+/- symbiotic relationship where parasite derives nourishment from host which is harmed in the process

New cards
18

disease

a disorder of structure/function in an organism, especially one that produces specific symptoms in a specific location (and it's not simply a physical injury)

New cards
19

mutualism

interspecific interaction that benefits both species (+/+, symbiotic)

New cards
20

flowers

example of mutualism (bees and...)

New cards
21

ants

example of mutualism (acacia tree and...)

New cards
22

commensalism

an interaction (+/neutral) between species that benefits one and neither helps nor harms the other

New cards
23

species diversity

the number of species (species richness) and relative abundance of species in a biological community

New cards
24

species richness

the total number of different species within a community

New cards
25

relative abundance

differences in the abundance of different species within a community

New cards
26

trophic structure

the feeding relationships between organisms

New cards
27

food chain

the transfer of food energy up trophic levels from its source in plants

New cards
28

autotrophs

make organic from inorganic

New cards
29

heterotrophs

consume other organisms to obtain organic compounds

New cards
30

90%

how much energy is lost from one trophic level to the next?

New cards
31

10%

how much energy is available from one trophic level to the next?

New cards
32

no

is the sun a trophic level?

New cards
33

.01%

in a food chain with five organisms, how much energy is left at the last level?

New cards
34

decomposers

what links all trophic levels?

New cards
35

energetic hypothesis

what hypothesis says that the length of the food chain is limited by inefficiency of energy transfer (what we think is correct)?

New cards
36

dynamic stability hypothesis

what hypothesis says that long food chains are less stable than short ones (probably not correct)?

New cards
37

dominant species

species in a community that are most abundant or have the highest biomass

New cards
38

biomass

total dry organic content of an organism (so not water)

New cards
39

keystone species

species that exert strong control over community structure, not necessarily numerically but through pivotal ecological roles

New cards
40

facilitators/ecosystem engineers

a species that has a positive effect on the survival and reproduction of other species in a community, and contributes to community structure, such as beavers

New cards
41

down

if plant population goes down, herbivore population will go down, then carnivore population will go... (bottom up model)

New cards
42

down

if the carnivore population goes down, herbivore population will go up, and plant population will go... (top down model)

New cards
43

disturbance

an event that changes a community

New cards
44

ecological succession

change in species diversity/composition over time

New cards
45

primary succession

a type of ecological succession that occurs in a virtually lifeless area, originally no organisms, originally no soil

New cards
46

secondary succession

occurs when an existing community has been cleared

New cards
47

primary

starting with bare rocks because of something like a volcanic eruption is an example of _______ succession

New cards
48

primary

lacking soil is an example of _______ succession

New cards
49

secondary

occurring after an event such as fire, storms, farming, logging, and mining would be an example of _______ succession

New cards
50

secondary

having soil present would be an example of ________ succession

New cards
51

primary

not having a seedbank (soil/place that holds seeds) would be an example of ______ succession

New cards
52

primary

which type of succession happens slower?

New cards
53

secondary

which type of succession happens faster?

New cards
54

secondary

having a seedbank would be a characteristic of which type of succession?

New cards
55

secondary

having pioneer species (first plants to get there) of weeds and grass would be a feature of __________ succession

New cards
56

primary

having pioneer species (first plants to get there) of lichen and moss, which are acidic and break rocks into soil, would be a feature of ________ succession

New cards
57

primary

which type of succession starts with bare rock, then has lichen and moss, and THEN has weeds and grass and everything else?

New cards
58

secondary

which type of succession starts with soil and then has weeds/grass and everything else?

New cards
59

disturbances

fires, hurricanes, floods, logging, farming, and humans are examples of...

New cards
60

perrennials

in succession (both types) it goes weeds/grasses, annuals, and then...

New cards
61

shade tolerant

what is the last thing in succession? (after shade intolerant)

New cards
62

lichen/moss

what comes after bare rock in primary succession?

New cards

Explore top notes

note Note
studied byStudied by 5 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 180 people
Updated ... ago
4.8 Stars(4)
note Note
studied byStudied by 12 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 90 people
Updated ... ago
5.0 Stars(2)
note Note
studied byStudied by 4 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 31 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 3 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 117804 people
Updated ... ago
4.9 Stars(594)

Explore top flashcards

flashcards Flashcard48 terms
studied byStudied by 26 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard39 terms
studied byStudied by 4 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard55 terms
studied byStudied by 60 people
Updated ... ago
5.0 Stars(3)
flashcards Flashcard31 terms
studied byStudied by 3 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard66 terms
studied byStudied by 99 people
Updated ... ago
5.0 Stars(2)
flashcards Flashcard277 terms
studied byStudied by 29 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard535 terms
studied byStudied by 2 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard485 terms
studied byStudied by 238 people
Updated ... ago
5.0 Stars(2)