Community Ecology and Structure

Question 1

what is the definition of ecology?

Answer 1

the study of the household of nature

Question 2

Ecology is

Answer 2

Multi disiplinary science studying relathionships between biotic living organisms and abiotic physical surroundings

Question 3

Population

Answer 3

A group of individuals of a single species living close together at the same time

Question 4

Community

Answer 4

all populations together in one place including plants, fungi, animals, protists

Question 5

Ecosystem

Answer 5

the community along with the physical non-living environments

Question 6

Bioshpere

Answer 6

Sum of all ecosystems

Question 7

Biome

Answer 7

grouping og many ecosystems often chacterized by climate and dominant plants

Question 8

Trophic approach organizes species based on

Answer 8

trophic/energetic interactions

Question 9

Community approach

Answer 9

Physical Chacterstics- emphasizing environment and Biological charteristic

Question 10

Community Structure

Answer 10

the types and numbers of species

Question 11

Community dynamics

Answer 11

how communities change over time

Question 12

Taxoonomic affinity

Answer 12

ex. all bird species in a community

Question 13

Guild

Answer 13

group of species that use the same resources

Question 14

Functional group

Answer 14

species that function in similar ways, but do not necessarily use the same resources

Question 15

Foundation species

Answer 15

causes physical or chemical changes in enviornment that affect other species

Question 16

Keystone species

Answer 16

controls distribution or abundance of other species

Question 17

dominant species

Answer 17

most abundant in either numbers or biomass

Question 18

Species richness

Answer 18

the number of different species in a community

Question 19

Species Evenness

Answer 19

relative abundances compared with one another

Question 20

Species Diversity

Answer 20

combines species richness and species evenness

Question 21

Shannon-Weiner Index

Answer 21

analysis a community by combining species ichness and evenness

Question 22

What influences commity stucture

Answer 22

climate,geography,heeterogeneity,disruptive events, interactions,

Question 23

A species accumulation curve can help determine when _ of the species in a community have been observed

Answer 23

enough

Question 24

Heterogenity can be best described as the

Answer 24

patchiness of a community

Question 25

Starfish are a

Answer 25

keystone species

Question 26

a functional group is

Answer 26

a collective of species that function in similar ways and use all the same resources

Question 27

Example of an ecological mismatch

Answer 27

when a plant blooms too early to be succesfully pollinated by its usual pollinature