Ecology

Question 1

Native Species

Answer 1

Species that have established stable population dynamics in a habitat

Question 2

Nonnative species

Answer 2

Migrated species in new habitats. May not survive

Question 3

Invasive species

Answer 3

Exist without a natural predator

Question 4

Indicator species

Answer 4

Capable of revealing important info about the environment

Ex. birds, fish

Question 5

Foundation species

Answer 5

Help establish living habitat for other species

Elephants, corals

Question 6

Keystone species

Answer 6

Exist in small quantity but have a significant impact on health of an ecosystem

Question 7

Endemic species

Answer 7

Specialist species found in a unique habitat

Question 8

Generalist

Answer 8

Adapt to wide range of living conditions

Question 9

Specialist

Answer 9

Adapt to specific living condition, unable to survive when conditions have changed

Question 10

Endangered species

Answer 10

High chance of species extinction

Question 11

Threatened species

Answer 11

Shows sign of population decline

Question 12

K-species

Answer 12

Few offspring
Low reproductivity
Larger
Live longer

Question 13

r-species

Answer 13

Lots of offspring
High reproductivity
Smaller
Die early

Question 14

Carrying Capacity (K)

Answer 14

Max population allowed be available resources at that habitat

Question 15

Biotic potential

Answer 15

Max population size under ideal conditions

Question 16

Overshoot

Answer 16

Overpopulation
Exceeds carrying capacity

Question 17

Primary Succession

Answer 17

No existing soil
500-1000+ years

Question 18

Secondary Succession

Answer 18

With existing soil
After major environmental catastrophes
100-500+ years

Question 19

Genetic mutation

Answer 19

Unplanned genetic changes in an individual

Question 20

Adaptation

Answer 20

Genetic mutation that allows advantages such as finding food, mates, producing, etc

Question 21

Founder Effect

Answer 21

of healthy offspring limited due to a lack of genetic diversity

Question 22

Genetic Drift

Answer 22

Chance of unique genetic traits limited in small population

Question 23

Bottleneck Effect

Answer 23

After catastrophes

Low population size

Question 24

Survivorship Types

Answer 24

Type 1 (Humans) Top
Type 2 (Birds) Middle
Type 3 (Trees) Bottom

Question 25

Interspecies Interactions

Answer 25

Predation - the preying of one animal on others. Mutualism - + + Commensalism - + / Parasitism - Parasitism is a symbiotic relationship where one organism, the parasite, benefits at the expense of another, the host.